Update README.md

Reviewed-on: Infendro/hash-kt#8

.gitea/workflows/main.yaml

@@ -1,36 +0,0 @@
-on:
-  push:
-    branches:
-      - main
-
-env:
-  GIT__TOKEN: ${{ secrets.TOKEN }}
-
-jobs:
-  publish:
-    runs-on: linux
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: actions/cache/restore@v4
-        with:
-          key: gradle
-          path: |
-            ~/.gradle/caches/
-            ~/.gradle/wrapper/
-            ~/.konan/
-
-      - uses: actions/setup-java@v4
-        with:
-          java-version: '24'
-          distribution: 'temurin'
-
-      - run: ./gradlew publish
-
-      - uses: actions/cache/save@v4
-        with:
-          key: gradle
-          path: |
-            ~/.gradle/caches/
-            ~/.gradle/wrapper/
-            ~/.konan/

.gitea/workflows/publish.yaml

@@ -0,0 +1,47 @@
+on:
+  push:
+    branches: [ main ]
+
+jobs:
+  publish:
+    runs-on: linux
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Java
+        uses: actions/setup-java@v4
+        with:
+          java-version: '24'
+          distribution: 'temurin'
+
+      - name: Cache Gradle
+        uses: actions/cache@v4
+        with:
+          key: gradle-${{ hashFiles('**/libs.versions.toml') }}
+          restore-keys: gradle
+          path: |
+            ~/.gradle/caches/
+            ~/.gradle/wrapper/
+
+      - name: Cache Konan
+        uses: actions/cache@v4
+        with:
+          key: konan-${{ hashFiles('**/libs.versions.toml') }}
+          restore-keys: konan
+          path: |
+            ~/.konan/
+
+      - name: Cache Node
+        uses: actions/cache@v4
+        with:
+          key: node-${{ hashFiles('**/libs.versions.toml') }}
+          restore-keys: node
+          path: |
+            ~/.gradle/nodejs
+            ~/.gradle/yarn
+
+      - name: Publish
+        run: ./gradlew publish
+        env:
+          INFENDRO__TOKEN: ${{ secrets.TOKEN }}

.gitea/workflows/test.yaml

@@ -0,0 +1,28 @@
+on:
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  test:
+    runs-on: linux
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Java
+        uses: actions/setup-java@v4
+        with:
+          java-version: '24'
+          distribution: 'temurin'
+
+      - name: Cache Gradle
+        uses: actions/cache@v4
+        with:
+          key: gradle-${{ hashFiles('**/libs.versions.toml') }}
+          restore-keys: gradle
+          path: |
+            ~/.gradle/caches/
+            ~/.gradle/wrapper/
+
+      - name: Test
+        run: ./gradlew jvmTest

README.md

@@ -1,20 +1,15 @@
-# Kotlin Hash
+# hash.kt
 
-This library provides various [Cryptographic Hash Function](https://en.wikipedia.org/wiki/Cryptographic_hash_function)
+`hash.kt` is a Kotlin Multiplatform library that provides common [Cryptographic Hash Functions](https://en.wikipedia.org/wiki/Cryptographic_hash_function).
-implementations in Kotlin Multiplatform.
 
-## Features
+Supported algorithms:
-
+- MD5
-* [MD5](https://en.wikipedia.org/wiki/MD5)
+- SHA-1
-* [SHA1](https://en.wikipedia.org/wiki/SHA-1)
+- SHA-2 (SHA-224, SHA-256, SHA-384, SHA-512)
-* [SHA224](https://en.wikipedia.org/wiki/SHA-2)
+- SHA-3 (SHA3-224, SHA3-256, SHA3-384, SHA3-512)
-* [SHA256](https://en.wikipedia.org/wiki/SHA-2)
+- SHAKE (SHAKE128, SHAKE256)
-* [SHA384](https://en.wikipedia.org/wiki/SHA-2)
+- Blake (Blake-224, Blake-256, Blake-384, Blake-512)
-* [SHA512](https://en.wikipedia.org/wiki/SHA-2)
+- Blake2 (Blake2s, Blake2b)
-* Multiplatform support
-    * JVM
-    * JavaScript
-    * Native (Linux)
 
 ## Installation
 
@@ -26,18 +21,16 @@ repositories {
 }
 
 dependencies {
-    implementation("com.infendro:hash:1.2.2")
+    implementation("com.infendro:hash:1.7.0")
 }
 ```
 
 ## Usage
 
 ```kotlin
-import com.infendro.hash.SHA256
-
 fun main() {
-    // hash some value using SHA256
+    // hash some value using SHA-256
-    val value = "...".encodeToByteArray()
+    val value = "Hello World!".encodeToByteArray()
-    val hash = SHA256.hash(value)
+    val hash = `SHA-256`().hash(value)
 }
 ```

build.gradle.kts

@@ -1,62 +1,44 @@
-group = "com.infendro"
+@file:OptIn(ExperimentalWasmDsl::class)
-version = "1.3.2"
 
-repositories {
+import com.infendro.plugin.infendro
-    maven("https://git.infendro.com/api/packages/Infendro/maven")
+import com.infendro.plugin.token
-    mavenCentral()
+import org.jetbrains.kotlin.gradle.ExperimentalWasmDsl
-}
+
+group = "com.infendro"
+version = "1.7.0"
 
 plugins {
+    alias(libs.plugins.infendro)
     alias(libs.plugins.multiplatform)
     id("maven-publish")
 }
 
 kotlin {
     jvm()
-    js {
-        nodejs()
-    }
     linuxX64()
+    linuxArm64()
+    mingwX64()
+    macosX64()
+    macosArm64()
+    js { nodejs() }
+    wasmJs { nodejs() }
+    wasmWasi { nodejs() }
+
+    repositories {
+        infendro()
+        mavenCentral()
+    }
 
     sourceSets {
         commonMain.dependencies {
-            implementation(libs.bytearray)
+            implementation(libs.bytes)
         }
         commonTest.dependencies {
             implementation(libs.test)
         }
     }
-
-    compilerOptions {
-        freeCompilerArgs.add("-opt-in=kotlin.ExperimentalUnsignedTypes")
-    }
 }
 
-publishing {
+publishing.repositories {
-    repositories {
+    infendro(token)
-        maven {
-            url = uri("https://git.infendro.com/api/packages/Infendro/maven")
-            authentication.create("header", HttpHeaderAuthentication::class)
-            credentials(HttpHeaderCredentials::class) {
-                val token = secret("git.token") ?: throw GradleException()
-
-                name = "Authorization"
-                value = "token $token"
-            }
-        }
-    }
-}
-
-fun secret(
-    key: String,
-): String? {
-    val property = key
-    val environment = key
-        .uppercase()
-        .replace(".", "__")
-
-    val prop = properties[property] as String?
-    val env = System.getenv(environment)
-
-    return prop ?: env
 }

gradle/libs.versions.toml

@@ -1,10 +1,12 @@
 [versions]
-kotlin = "2.2.21"
+infendro = "1.1.0"
-bytearray = "1.2.3"
+kotlin = "2.3.0"
+bytes = "1.4.1"
 
 [plugins]
+infendro = { id = "com.infendro.plugin", version.ref = "infendro" }
 multiplatform = { id = "org.jetbrains.kotlin.multiplatform", version.ref = "kotlin" }
 
 [libraries]
-bytearray = { module = "com.infendro:bytearray", version.ref = "bytearray" }
+bytes = { module = "com.infendro:bytes", version.ref = "bytes" }
 test = { module = "org.jetbrains.kotlin:kotlin-test", version.ref = "kotlin" }

settings.gradle.kts

@@ -1 +1,6 @@
 rootProject.name = "hash"
+
+pluginManagement.repositories {
+    maven("https://git.infendro.com/api/packages/Infendro/maven")
+    mavenCentral()
+}

src/commonMain/kotlin/com/infendro/hash/Buffer.kt

@@ -0,0 +1,47 @@
+package com.infendro.hash
+
+import com.infendro.bytes.ByteOrder
+import com.infendro.bytes.int.copyInto
+import com.infendro.bytes.long.copyInto
+
+class Buffer(
+    val size: Int,
+) {
+    val value = ByteArray(size)
+    var offset = 0
+
+    val free: Int
+        get() = size - offset
+
+    fun isEmpty(): Boolean = offset == 0
+    fun isNotEmpty(): Boolean = !isEmpty()
+    fun isFull(): Boolean = offset == size
+
+    fun reset() {
+        value.fill(0x00)
+        offset = 0
+    }
+
+    fun jumpTo(offset: Int) {
+        this.offset = offset
+    }
+
+    fun append(byte: Byte) {
+        value[offset++] = byte
+    }
+
+    fun append(bytes: ByteArray, startIndex: Int = 0, endIndex: Int = bytes.size) {
+        bytes.copyInto(value, offset, startIndex, endIndex)
+        offset += (endIndex - startIndex)
+    }
+
+    fun append(n: Int, order: ByteOrder = ByteOrder.BIG_ENDIAN) {
+        n.copyInto(value, offset, order = order)
+        offset += 4
+    }
+
+    fun append(n: Long, order: ByteOrder = ByteOrder.BIG_ENDIAN) {
+        n.copyInto(value, offset, order = order)
+        offset += 8
+    }
+}

src/commonMain/kotlin/com/infendro/hash/HashFunction.kt

@@ -1,13 +1,67 @@
 package com.infendro.hash
 
-abstract class HashFunction {
+abstract class HashFunction(
-    abstract val bytes: Int
+    val bytes: Int,
+    val block: Int,
+) {
     val bits: Int
         get() = bytes * 8
 
-    abstract val block: Int
+    protected val buffer = Buffer(block)
+    protected var length = 0L
 
-    abstract fun hash(
+    open fun reset() {
-        value: UByteArray,
+        buffer.reset()
-    ): UByteArray
+        length = 0L
+    }
+
+    open fun update(byte: Byte) {
+        buffer.append(byte)
+        length++
+        if (buffer.isFull()) {
+            process()
+            buffer.reset()
+        }
+    }
+
+    open fun update(bytes: ByteArray) {
+        var i = 0
+
+        var free = buffer.free
+        while (i + free < bytes.size) {
+            buffer.append(bytes, startIndex = i, endIndex = i + free)
+            length += free
+            process()
+            buffer.reset()
+            free = buffer.free
+            i += block
+        }
+
+        buffer.append(bytes, startIndex = i)
+        length += (bytes.size - i)
+        if (buffer.isFull()) {
+            process()
+            buffer.reset()
+        }
+    }
+
+    protected abstract fun process()
+
+    abstract fun digestInto(destination: ByteArray, destinationOffset: Int = 0)
+
+    fun digest(): ByteArray {
+        val result = ByteArray(bytes)
+        digestInto(result)
+        return result
+    }
+
+    fun hashInto(value: ByteArray, destination: ByteArray, destinationOffset: Int = 0) {
+        update(value)
+        digestInto(destination, destinationOffset)
+    }
+
+    fun hash(value: ByteArray): ByteArray {
+        update(value)
+        return digest()
+    }
 }

src/commonMain/kotlin/com/infendro/hash/blake/Blake-224.kt

@@ -1,120 +1,69 @@
 package com.infendro.hash.blake
 
-import com.infendro.bytearray.toUByteArray
+import com.infendro.bytes.bytearray.copyInto
-import com.infendro.bytearray.toUIntArray
+import com.infendro.bytes.intarray.copyInto
 import com.infendro.hash.HashFunction
+import com.infendro.hash.blake.`Blake-256`.Companion.c
+import com.infendro.hash.blake.`Blake-256`.Companion.sigma
 
-object `Blake-224` : HashFunction() {
+class `Blake-224` : HashFunction(28, 64) {
-    override val bytes: Int
+    private val h = initial.copyOf()
-        get() = 28
 
-    override val block: Int
+    private val m = IntArray(16)
-        get() = 64
+    private val v = IntArray(16)
 
-    private val initial = uintArrayOf(
+    override fun reset() {
-        0xc1059ed8U, 0x367cd507U,
+        super.reset()
-        0x3070dd17U, 0xf70e5939U,
+        initial.copyInto(h)
-        0xffc00b31U, 0x68581511U,
-        0x64f98fa7U, 0xbefa4fa4U,
-    )
-
-    private val c = uintArrayOf(
-        0x243f6a88U, 0x85a308d3U,
-        0x13198a2eU, 0x03707344U,
-        0xa4093822U, 0x299f31d0U,
-        0x082efa98U, 0xec4e6c89U,
-        0x452821e6U, 0x38d01377U,
-        0xbe5466cfU, 0x34e90c6cU,
-        0xc0ac29b7U, 0xc97c50ddU,
-        0x3f84d5b5U, 0xb5470917U,
-    )
-
-    private val sigma = arrayOf(
-        intArrayOf(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15),
-        intArrayOf(14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3),
-        intArrayOf(11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4),
-        intArrayOf(7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8),
-        intArrayOf(9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13),
-        intArrayOf(2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9),
-        intArrayOf(12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11),
-        intArrayOf(13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10),
-        intArrayOf(6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5),
-        intArrayOf(10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13, 0),
-    )
-
-    override fun hash(value: UByteArray): UByteArray {
-        val h = initial.copyOf()
-        var t = 0U
-        val l = value.size.toULong() * 8UL
-
-        // padding
-        val paddedValue = buildList {
-            addAll(value)
-            add(0x80U)
-            while (size % 64 != 56) {
-                add(0x00U)
-            }
-            addAll(l.toUByteArray())
-        }.toUByteArray()
-
-        // compress
-        val blocks = paddedValue
-            .chunked(64) { it.toUByteArray() }
-        for (block in blocks) {
-            t += minOf(l - t, 512UL).toUInt()
-
-            val m = block.toUIntArray()
-            compress(h, m, t)
     }
 
-        return h.sliceArray(0..6).toUByteArray()
+    override fun process() = compress(buffer.value, length * 8L)
+
+    private fun finalize() {
+        buffer.append(0x80.toByte())
+        if (buffer.free < 8) {
+            process()
+            buffer.reset()
+        }
+        buffer.jumpTo(56)
+        buffer.append(length * 8L)
+
+        process()
     }
 
-    private fun compress(
+    override fun digestInto(destination: ByteArray, destinationOffset: Int) {
-        h: UIntArray,
+        finalize()
-        m: UIntArray,
+        h.copyInto(destination, destinationOffset, endIndex = 7)
-        t: UInt,
+        reset()
-    ) {
+    }
-        // initialization
+
-        val v = UIntArray(16)
+    private fun compress(block: ByteArray, t: Long) {
+        block.copyInto(m)
         for (i in 0..<8) v[i] = h[i]
         for (i in 0..<4) v[i + 8] = c[i]
-        for (i in 0..<2) v[i + 12] = c[i + 4] xor t
+        for (i in 0..<2) v[i + 12] = c[i + 4] xor t.toInt()
-        for (i in 0..<2) v[i + 14] = c[i + 6]
+        for (i in 0..<2) v[i + 14] = c[i + 6] xor (t ushr 32).toInt()
 
-        // rounds
+        repeat(14) { r ->
-        for (r in 0..<14) {
             val s = sigma[r % 10]
 
-            // column
             g(v, 0, 4, 8, 12, m[s[0]] xor c[s[1]], m[s[1]] xor c[s[0]])
             g(v, 1, 5, 9, 13, m[s[2]] xor c[s[3]], m[s[3]] xor c[s[2]])
             g(v, 2, 6, 10, 14, m[s[4]] xor c[s[5]], m[s[5]] xor c[s[4]])
             g(v, 3, 7, 11, 15, m[s[6]] xor c[s[7]], m[s[7]] xor c[s[6]])
 
-            // diagonal
             g(v, 0, 5, 10, 15, m[s[8]] xor c[s[9]], m[s[9]] xor c[s[8]])
             g(v, 1, 6, 11, 12, m[s[10]] xor c[s[11]], m[s[11]] xor c[s[10]])
             g(v, 2, 7, 8, 13, m[s[12]] xor c[s[13]], m[s[13]] xor c[s[12]])
             g(v, 3, 4, 9, 14, m[s[14]] xor c[s[15]], m[s[15]] xor c[s[14]])
         }
 
-        // finalization
+        for (i in 0..<8) {
-        for (i in 0..7) {
             h[i] = h[i] xor v[i] xor v[i + 8]
         }
     }
 
-    // round function
+    private fun g(v: IntArray, a: Int, b: Int, c: Int, d: Int, x: Int, y: Int) {
-    private fun g(
-        v: UIntArray,
-        a: Int,
-        b: Int,
-        c: Int,
-        d: Int,
-        x: UInt,
-        y: UInt,
-    ) {
         v[a] += v[b] + x
         v[d] = (v[d] xor v[a]).rotateRight(16)
         v[c] += v[d]
@@ -124,4 +73,13 @@ object `Blake-224` : HashFunction() {
         v[c] += v[d]
         v[b] = (v[b] xor v[c]).rotateRight(7)
     }
+
+    companion object {
+        private val initial = intArrayOf(
+            -0x3efa6128, +0x367cd507,
+            +0x3070dd17, -0x08f1a6c7,
+            -0x003ff4cf, +0x68581511,
+            +0x64f98fa7, -0x4105b05c,
+        )
+    }
 }

src/commonMain/kotlin/com/infendro/hash/blake/Blake-256.kt

@@ -1,35 +1,98 @@
 package com.infendro.hash.blake
 
-import com.infendro.bytearray.toUByteArray
+import com.infendro.bytes.bytearray.copyInto
-import com.infendro.bytearray.toUIntArray
+import com.infendro.bytes.intarray.copyInto
 import com.infendro.hash.HashFunction
 
-object `Blake-256` : HashFunction() {
+class `Blake-256` : HashFunction(32, 64) {
-    override val bytes: Int
+    private val h = initial.copyOf()
-        get() = 32
 
-    override val block: Int
+    private val m = IntArray(16)
-        get() = 64
+    private val v = IntArray(16)
 
-    private val initial = uintArrayOf(
+    override fun reset() {
-        0x6a09e667U, 0xbb67ae85U,
+        super.reset()
-        0x3c6ef372U, 0xa54ff53aU,
+        initial.copyInto(h)
-        0x510e527fU, 0x9b05688cU,
+    }
-        0x1f83d9abU, 0x5be0cd19U,
+
+    override fun process() = compress(buffer.value, length * 8L)
+
+    private fun finalize() {
+        buffer.append(0x80.toByte())
+        if (buffer.free < 9) {
+            process()
+            buffer.reset()
+        }
+        buffer.jumpTo(55)
+        buffer.append(0x01.toByte())
+        buffer.append(length * 8L)
+
+        process()
+    }
+
+    override fun digestInto(destination: ByteArray, destinationOffset: Int) {
+        finalize()
+        h.copyInto(destination, destinationOffset)
+        reset()
+    }
+
+    private fun compress(block: ByteArray, t: Long) {
+        block.copyInto(m)
+        for (i in 0..<8) v[i] = h[i]
+        for (i in 0..<4) v[i + 8] = c[i]
+        for (i in 0..<2) v[i + 12] = c[i + 4] xor t.toInt()
+        for (i in 0..<2) v[i + 14] = c[i + 6] xor (t ushr 32).toInt()
+
+        repeat(14) { r ->
+            val s = sigma[r % 10]
+
+            g(v, 0, 4, 8, 12, m[s[0]] xor c[s[1]], m[s[1]] xor c[s[0]])
+            g(v, 1, 5, 9, 13, m[s[2]] xor c[s[3]], m[s[3]] xor c[s[2]])
+            g(v, 2, 6, 10, 14, m[s[4]] xor c[s[5]], m[s[5]] xor c[s[4]])
+            g(v, 3, 7, 11, 15, m[s[6]] xor c[s[7]], m[s[7]] xor c[s[6]])
+
+            g(v, 0, 5, 10, 15, m[s[8]] xor c[s[9]], m[s[9]] xor c[s[8]])
+            g(v, 1, 6, 11, 12, m[s[10]] xor c[s[11]], m[s[11]] xor c[s[10]])
+            g(v, 2, 7, 8, 13, m[s[12]] xor c[s[13]], m[s[13]] xor c[s[12]])
+            g(v, 3, 4, 9, 14, m[s[14]] xor c[s[15]], m[s[15]] xor c[s[14]])
+        }
+
+        for (i in 0..<8) {
+            h[i] = h[i] xor v[i] xor v[i + 8]
+        }
+    }
+
+    private fun g(v: IntArray, a: Int, b: Int, c: Int, d: Int, x: Int, y: Int) {
+        v[a] += v[b] + x
+        v[d] = (v[d] xor v[a]).rotateRight(16)
+        v[c] += v[d]
+        v[b] = (v[b] xor v[c]).rotateRight(12)
+        v[a] += v[b] + y
+        v[d] = (v[d] xor v[a]).rotateRight(8)
+        v[c] += v[d]
+        v[b] = (v[b] xor v[c]).rotateRight(7)
+    }
+
+    companion object {
+        private val initial = intArrayOf(
+            +0x6a09e667, -0x4498517b,
+            +0x3c6ef372, -0x5ab00ac6,
+            +0x510e527f, -0x64fa9774,
+            +0x1f83d9ab, +0x5be0cd19,
         )
 
-    private val c = uintArrayOf(
+        internal val c = intArrayOf(
-        0x243f6a88U, 0x85a308d3U,
+            +0x243f6a88, -0x7a5cf72d,
-        0x13198a2eU, 0x03707344U,
+            +0x13198a2e, +0x03707344,
-        0xa4093822U, 0x299f31d0U,
+            -0x5bf6c7de, +0x299f31d0,
-        0x082efa98U, 0xec4e6c89U,
+            +0x082efa98, -0x13b19377,
-        0x452821e6U, 0x38d01377U,
+            +0x452821e6, +0x38d01377,
-        0xbe5466cfU, 0x34e90c6cU,
+            -0x41ab9931, +0x34e90c6c,
-        0xc0ac29b7U, 0xc97c50ddU,
+            -0x3f53d649, -0x3683af23,
-        0x3f84d5b5U, 0xb5470917U,
+            +0x3f84d5b5, -0x4ab8f6e9,
         )
 
-    private val sigma = arrayOf(
+        internal val sigma = arrayOf(
             intArrayOf(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15),
             intArrayOf(14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3),
             intArrayOf(11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4),
@@ -41,88 +104,5 @@ object `Blake-256` : HashFunction() {
             intArrayOf(6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5),
             intArrayOf(10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13, 0),
         )
-
-    override fun hash(value: UByteArray): UByteArray {
-        val h = initial.copyOf()
-        var t = 0U
-        val l = value.size.toULong() * 8UL
-
-        // padding
-        val paddedValue = buildList {
-            addAll(value)
-            add(0x80U)
-            while (size % 64 != 55) {
-                add(0x00U)
-            }
-            add(0x01U)
-            addAll(l.toUByteArray())
-        }.toUByteArray()
-
-        // compress
-        val blocks = paddedValue
-            .chunked(64) { it.toUByteArray() }
-        for (block in blocks) {
-            t += minOf(l - t, 512UL).toUInt()
-
-            val m = block.toUIntArray()
-            compress(h, m, t)
-        }
-
-        return h.toUByteArray()
-    }
-
-    private fun compress(
-        h: UIntArray,
-        m: UIntArray,
-        t: UInt,
-    ) {
-        // initialization
-        val v = UIntArray(16)
-        for (i in 0..<8) v[i] = h[i]
-        for (i in 0..<4) v[i + 8] = c[i]
-        for (i in 0..<2) v[i + 12] = c[i + 4] xor t
-        for (i in 0..<2) v[i + 14] = c[i + 6]
-
-        // rounds
-        for (r in 0..<14) {
-            val s = sigma[r % 10]
-
-            // column
-            g(v, 0, 4, 8, 12, m[s[0]] xor c[s[1]], m[s[1]] xor c[s[0]])
-            g(v, 1, 5, 9, 13, m[s[2]] xor c[s[3]], m[s[3]] xor c[s[2]])
-            g(v, 2, 6, 10, 14, m[s[4]] xor c[s[5]], m[s[5]] xor c[s[4]])
-            g(v, 3, 7, 11, 15, m[s[6]] xor c[s[7]], m[s[7]] xor c[s[6]])
-
-            // diagonal
-            g(v, 0, 5, 10, 15, m[s[8]] xor c[s[9]], m[s[9]] xor c[s[8]])
-            g(v, 1, 6, 11, 12, m[s[10]] xor c[s[11]], m[s[11]] xor c[s[10]])
-            g(v, 2, 7, 8, 13, m[s[12]] xor c[s[13]], m[s[13]] xor c[s[12]])
-            g(v, 3, 4, 9, 14, m[s[14]] xor c[s[15]], m[s[15]] xor c[s[14]])
-        }
-
-        // finalization
-        for (i in 0..7) {
-            h[i] = h[i] xor v[i] xor v[i + 8]
-        }
-    }
-
-    // round function
-    private fun g(
-        v: UIntArray,
-        a: Int,
-        b: Int,
-        c: Int,
-        d: Int,
-        x: UInt,
-        y: UInt,
-    ) {
-        v[a] += v[b] + x
-        v[d] = (v[d] xor v[a]).rotateRight(16)
-        v[c] += v[d]
-        v[b] = (v[b] xor v[c]).rotateRight(12)
-        v[a] += v[b] + y
-        v[d] = (v[d] xor v[a]).rotateRight(8)
-        v[c] += v[d]
-        v[b] = (v[b] xor v[c]).rotateRight(7)
     }
 }

src/commonMain/kotlin/com/infendro/hash/blake/Blake-384.kt

@@ -1,120 +1,70 @@
 package com.infendro.hash.blake
 
-import com.infendro.bytearray.toUByteArray
+import com.infendro.bytes.bytearray.copyInto
-import com.infendro.bytearray.toULongArray
+import com.infendro.bytes.longarray.copyInto
 import com.infendro.hash.HashFunction
+import com.infendro.hash.blake.`Blake-512`.Companion.c
+import com.infendro.hash.blake.`Blake-512`.Companion.sigma
 
-object `Blake-384` : HashFunction() {
+class `Blake-384` : HashFunction(48, 128) {
-    override val bytes: Int
+    private val h = initial.copyOf()
-        get() = 48
 
-    override val block: Int
+    private val m = LongArray(16)
-        get() = 128
+    private val v = LongArray(16)
 
-    private val initial = ulongArrayOf(
+    override fun reset() {
-        0xcbbb9d5dc1059ed8U, 0x629a292a367cd507U,
+        super.reset()
-        0x9159015a3070dd17U, 0x152fecd8f70e5939U,
+        initial.copyInto(h)
-        0x67332667ffc00b31U, 0x8eb44a8768581511U,
-        0xdb0c2e0d64f98fa7U, 0x47b5481dbefa4fa4U,
-    )
-
-    private val c = ulongArrayOf(
-        0x243f6a8885a308d3UL, 0x13198a2e03707344UL,
-        0xa4093822299f31d0UL, 0x082efa98ec4e6c89UL,
-        0x452821e638d01377UL, 0xbe5466cf34e90c6cUL,
-        0xc0ac29b7c97c50ddUL, 0x3f84d5b5b5470917UL,
-        0x9216d5d98979fb1bUL, 0xd1310ba698dfb5acUL,
-        0x2ffd72dbd01adfb7UL, 0xb8e1afed6a267e96UL,
-        0xba7c9045f12c7f99UL, 0x24a19947b3916cf7UL,
-        0x0801f2e2858efc16UL, 0x636920d871574e69UL,
-    )
-
-    private val sigma = arrayOf(
-        intArrayOf(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15),
-        intArrayOf(14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3),
-        intArrayOf(11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4),
-        intArrayOf(7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8),
-        intArrayOf(9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13),
-        intArrayOf(2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9),
-        intArrayOf(12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11),
-        intArrayOf(13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10),
-        intArrayOf(6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5),
-        intArrayOf(10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13, 0),
-    )
-
-    override fun hash(value: UByteArray): UByteArray {
-        val h = initial.copyOf()
-        var t = 0UL
-        val l = value.size.toULong() * 8UL
-
-        // padding
-        val paddedValue = buildList {
-            addAll(value)
-            add(0x80U)
-            while (size % 128 != 120) {
-                add(0x00U)
-            }
-            addAll(l.toUByteArray())
-        }.toUByteArray()
-
-        // compress
-        val blocks = paddedValue
-            .chunked(128) { it.toUByteArray() }
-        for (block in blocks) {
-            t += minOf(l - t, 1024UL)
-
-            val m = block.toULongArray()
-            compress(h, m, t)
     }
 
-        return h.sliceArray(0..5).toUByteArray()
+    override fun process() = compress(buffer.value, length * 8L)
+
+    private fun finalize() {
+        buffer.append(0x80.toByte())
+        if (buffer.free < 16) {
+            process()
+            buffer.reset()
+        }
+        buffer.jumpTo(112)
+        buffer.append(0L)
+        buffer.append(length * 8L)
+
+        process()
     }
 
-    private fun compress(
+    override fun digestInto(destination: ByteArray, destinationOffset: Int) {
-        h: ULongArray,
+        finalize()
-        m: ULongArray,
+        h.copyInto(destination, destinationOffset, endIndex = 6)
-        t: ULong,
+        reset()
-    ) {
+    }
-        // initialization
+
-        val v = ULongArray(16)
+    private fun compress(block: ByteArray, t: Long) {
+        block.copyInto(m)
         for (i in 0..<8) v[i] = h[i]
         for (i in 0..<4) v[i + 8] = c[i]
         for (i in 0..<2) v[i + 12] = c[i + 4] xor t
         for (i in 0..<2) v[i + 14] = c[i + 6]
 
-        // rounds
+        repeat(16) { r ->
-        for (r in 0..<16) {
             val s = sigma[r % 10]
 
-            // column
             g(v, 0, 4, 8, 12, m[s[0]] xor c[s[1]], m[s[1]] xor c[s[0]])
             g(v, 1, 5, 9, 13, m[s[2]] xor c[s[3]], m[s[3]] xor c[s[2]])
             g(v, 2, 6, 10, 14, m[s[4]] xor c[s[5]], m[s[5]] xor c[s[4]])
             g(v, 3, 7, 11, 15, m[s[6]] xor c[s[7]], m[s[7]] xor c[s[6]])
 
-            // diagonal
             g(v, 0, 5, 10, 15, m[s[8]] xor c[s[9]], m[s[9]] xor c[s[8]])
             g(v, 1, 6, 11, 12, m[s[10]] xor c[s[11]], m[s[11]] xor c[s[10]])
             g(v, 2, 7, 8, 13, m[s[12]] xor c[s[13]], m[s[13]] xor c[s[12]])
             g(v, 3, 4, 9, 14, m[s[14]] xor c[s[15]], m[s[15]] xor c[s[14]])
         }
 
-        // finalization
+        for (i in 0..<8) {
-        for (i in 0..7) {
             h[i] = h[i] xor v[i] xor v[i + 8]
         }
     }
 
-    // round function
+    private fun g(v: LongArray, a: Int, b: Int, c: Int, d: Int, x: Long, y: Long) {
-    private fun g(
-        v: ULongArray,
-        a: Int,
-        b: Int,
-        c: Int,
-        d: Int,
-        x: ULong,
-        y: ULong,
-    ) {
         v[a] += v[b] + x
         v[d] = (v[d] xor v[a]).rotateRight(32)
         v[c] += v[d]
@@ -124,4 +74,13 @@ object `Blake-384` : HashFunction() {
         v[c] += v[d]
         v[b] = (v[b] xor v[c]).rotateRight(11)
     }
+
+    companion object {
+        private val initial = longArrayOf(
+            -0x344462a23efa6128, +0x629a292a367cd507,
+            -0x6ea6fea5cf8f22e9, +0x152fecd8f70e5939,
+            +0x67332667ffc00b31, -0x714bb57897a7eaef,
+            -0x24f3d1f29b067059, +0x47b5481dbefa4fa4,
+        )
+    }
 }

src/commonMain/kotlin/com/infendro/hash/blake/Blake-512.kt

@@ -1,35 +1,99 @@
 package com.infendro.hash.blake
 
-import com.infendro.bytearray.toUByteArray
+import com.infendro.bytes.bytearray.copyInto
-import com.infendro.bytearray.toULongArray
+import com.infendro.bytes.longarray.copyInto
 import com.infendro.hash.HashFunction
 
-object `Blake-512` : HashFunction() {
+class `Blake-512` : HashFunction(64, 128) {
-    override val bytes: Int
+    private val h = initial.copyOf()
-        get() = 64
 
-    override val block: Int
+    private val m = LongArray(16)
-        get() = 128
+    private val v = LongArray(16)
 
-    private val initial = ulongArrayOf(
+    override fun reset() {
-        0x6a09e667f3bcc908UL, 0xbb67ae8584caa73bUL,
+        super.reset()
-        0x3c6ef372fe94f82bUL, 0xa54ff53a5f1d36f1UL,
+        initial.copyInto(h)
-        0x510e527fade682d1UL, 0x9b05688c2b3e6c1fUL,
+    }
-        0x1f83d9abfb41bd6bUL, 0x5be0cd19137e2179UL,
+
+    override fun process() = compress(buffer.value, length * 8L)
+
+    private fun finalize() {
+        buffer.append(0x80.toByte())
+        if (buffer.free < 17) {
+            process()
+            buffer.reset()
+        }
+        buffer.jumpTo(111)
+        buffer.append(0x01.toByte())
+        buffer.append(0L)
+        buffer.append(length * 8L)
+
+        process()
+    }
+
+    override fun digestInto(destination: ByteArray, destinationOffset: Int) {
+        finalize()
+        h.copyInto(destination, destinationOffset)
+        reset()
+    }
+
+    private fun compress(block: ByteArray, t: Long) {
+        block.copyInto(m)
+        for (i in 0..<8) v[i] = h[i]
+        for (i in 0..<4) v[i + 8] = c[i]
+        for (i in 0..<2) v[i + 12] = c[i + 4] xor t
+        for (i in 0..<2) v[i + 14] = c[i + 6]
+
+        repeat(16) { r ->
+            val s = sigma[r % 10]
+
+            g(v, 0, 4, 8, 12, m[s[0]] xor c[s[1]], m[s[1]] xor c[s[0]])
+            g(v, 1, 5, 9, 13, m[s[2]] xor c[s[3]], m[s[3]] xor c[s[2]])
+            g(v, 2, 6, 10, 14, m[s[4]] xor c[s[5]], m[s[5]] xor c[s[4]])
+            g(v, 3, 7, 11, 15, m[s[6]] xor c[s[7]], m[s[7]] xor c[s[6]])
+
+            g(v, 0, 5, 10, 15, m[s[8]] xor c[s[9]], m[s[9]] xor c[s[8]])
+            g(v, 1, 6, 11, 12, m[s[10]] xor c[s[11]], m[s[11]] xor c[s[10]])
+            g(v, 2, 7, 8, 13, m[s[12]] xor c[s[13]], m[s[13]] xor c[s[12]])
+            g(v, 3, 4, 9, 14, m[s[14]] xor c[s[15]], m[s[15]] xor c[s[14]])
+        }
+
+        for (i in 0..<8) {
+            h[i] = h[i] xor v[i] xor v[i + 8]
+        }
+    }
+
+    private fun g(v: LongArray, a: Int, b: Int, c: Int, d: Int, x: Long, y: Long) {
+        v[a] += v[b] + x
+        v[d] = (v[d] xor v[a]).rotateRight(32)
+        v[c] += v[d]
+        v[b] = (v[b] xor v[c]).rotateRight(25)
+        v[a] += v[b] + y
+        v[d] = (v[d] xor v[a]).rotateRight(16)
+        v[c] += v[d]
+        v[b] = (v[b] xor v[c]).rotateRight(11)
+    }
+
+    companion object {
+        private val initial = longArrayOf(
+            +0x6a09e667f3bcc908L, -0x4498517a7b3558c5L,
+            +0x3c6ef372fe94f82bL, -0x5ab00ac5a0e2c90fL,
+            +0x510e527fade682d1L, -0x64fa9773d4c193e1L,
+            +0x1f83d9abfb41bd6bL, +0x5be0cd19137e2179L,
         )
 
-    private val c = ulongArrayOf(
+        internal val c = longArrayOf(
-        0x243f6a8885a308d3UL, 0x13198a2e03707344UL,
+            +0x243f6a8885a308d3L, +0x13198a2e03707344L,
-        0xa4093822299f31d0UL, 0x082efa98ec4e6c89UL,
+            -0x5bf6c7ddd660ce30L, +0x082efa98ec4e6c89L,
-        0x452821e638d01377UL, 0xbe5466cf34e90c6cUL,
+            +0x452821e638d01377L, -0x41ab9930cb16f394L,
-        0xc0ac29b7c97c50ddUL, 0x3f84d5b5b5470917UL,
+            -0x3f53d6483683af23L, +0x3f84d5b5b5470917L,
-        0x9216d5d98979fb1bUL, 0xd1310ba698dfb5acUL,
+            -0x6de92a26768604e5L, -0x2ecef45967204a54L,
-        0x2ffd72dbd01adfb7UL, 0xb8e1afed6a267e96UL,
+            +0x2ffd72dbd01adfb7L, -0x471e501295d9816aL,
-        0xba7c9045f12c7f99UL, 0x24a19947b3916cf7UL,
+            -0x45836fba0ed38067L, +0x24a19947b3916cf7L,
-        0x0801f2e2858efc16UL, 0x636920d871574e69UL,
+            +0x0801f2e2858efc16L, +0x636920d871574e69L,
         )
 
-    private val sigma = arrayOf(
+        internal val sigma = arrayOf(
             intArrayOf(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15),
             intArrayOf(14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3),
             intArrayOf(11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4),
@@ -41,89 +105,5 @@ object `Blake-512` : HashFunction() {
             intArrayOf(6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5),
             intArrayOf(10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13, 0),
         )
-
-    override fun hash(value: UByteArray): UByteArray {
-        val h = initial.copyOf()
-        var t = 0UL
-        val l = value.size.toULong() * 8UL
-
-        // padding
-        val paddedValue = buildList {
-            addAll(value)
-            add(0x80U)
-            while (size % 128 != 111) {
-                add(0x00U)
-            }
-            add(0x01U)
-            repeat(8) { add(0x00U) }
-            addAll(l.toUByteArray())
-        }.toUByteArray()
-
-        // compress
-        val blocks = paddedValue
-            .chunked(128) { it.toUByteArray() }
-        for (block in blocks) {
-            t += minOf(l - t, 1024UL)
-
-            val m = block.toULongArray()
-            compress(h, m, t)
-        }
-
-        return h.toUByteArray()
-    }
-
-    private fun compress(
-        h: ULongArray,
-        m: ULongArray,
-        t: ULong,
-    ) {
-        // initialization
-        val v = ULongArray(16)
-        for (i in 0..<8) v[i] = h[i]
-        for (i in 0..<4) v[i + 8] = c[i]
-        for (i in 0..<2) v[i + 12] = c[i + 4] xor t
-        for (i in 0..<2) v[i + 14] = c[i + 6]
-
-        // rounds
-        for (r in 0..<16) {
-            val s = sigma[r % 10]
-
-            // column
-            g(v, 0, 4, 8, 12, m[s[0]] xor c[s[1]], m[s[1]] xor c[s[0]])
-            g(v, 1, 5, 9, 13, m[s[2]] xor c[s[3]], m[s[3]] xor c[s[2]])
-            g(v, 2, 6, 10, 14, m[s[4]] xor c[s[5]], m[s[5]] xor c[s[4]])
-            g(v, 3, 7, 11, 15, m[s[6]] xor c[s[7]], m[s[7]] xor c[s[6]])
-
-            // diagonal
-            g(v, 0, 5, 10, 15, m[s[8]] xor c[s[9]], m[s[9]] xor c[s[8]])
-            g(v, 1, 6, 11, 12, m[s[10]] xor c[s[11]], m[s[11]] xor c[s[10]])
-            g(v, 2, 7, 8, 13, m[s[12]] xor c[s[13]], m[s[13]] xor c[s[12]])
-            g(v, 3, 4, 9, 14, m[s[14]] xor c[s[15]], m[s[15]] xor c[s[14]])
-        }
-
-        // finalization
-        for (i in 0..7) {
-            h[i] = h[i] xor v[i] xor v[i + 8]
-        }
-    }
-
-    // round function
-    private fun g(
-        v: ULongArray,
-        a: Int,
-        b: Int,
-        c: Int,
-        d: Int,
-        x: ULong,
-        y: ULong,
-    ) {
-        v[a] += v[b] + x
-        v[d] = (v[d] xor v[a]).rotateRight(32)
-        v[c] += v[d]
-        v[b] = (v[b] xor v[c]).rotateRight(25)
-        v[a] += v[b] + y
-        v[d] = (v[d] xor v[a]).rotateRight(16)
-        v[c] += v[d]
-        v[b] = (v[b] xor v[c]).rotateRight(11)
     }
 }

src/commonMain/kotlin/com/infendro/hash/blake2/Blake2b.kt

@@ -0,0 +1,126 @@
+package com.infendro.hash.blake2
+
+import com.infendro.bytes.ByteOrder.LITTLE_ENDIAN
+import com.infendro.bytes.bytearray.copyInto
+import com.infendro.bytes.longarray.toByteArray
+import com.infendro.hash.HashFunction
+
+class Blake2b(bytes: Int) : HashFunction(bytes, 128) {
+    init {
+        require(bytes in 1..64)
+    }
+
+    private val h = initial.copyOf()
+        .also { h ->
+            h[0] = h[0] xor (0x01010000L or bytes.toLong())
+        }
+
+    private val m = LongArray(16)
+    private val v = LongArray(16)
+
+    override fun reset() {
+        super.reset()
+        initial.copyInto(h)
+        h[0] = h[0] xor (0x01010000L or bytes.toLong())
+    }
+
+    override fun update(byte: Byte) {
+        if (buffer.isFull()) {
+            process()
+            buffer.reset()
+        }
+        buffer.append(byte)
+        length++
+    }
+
+    override fun update(bytes: ByteArray) {
+        if (buffer.isFull() && bytes.isNotEmpty()) {
+            process()
+            buffer.reset()
+        }
+
+        var i = 0
+
+        var free = buffer.free
+        while (i + free < bytes.size) {
+            buffer.append(bytes, startIndex = i, endIndex = i + free)
+            length += free
+            process()
+            buffer.reset()
+            free = buffer.free
+            i += block
+        }
+
+        buffer.append(bytes, startIndex = i)
+        length += (bytes.size - i)
+    }
+
+    override fun process() = compress(buffer.value, length, false)
+
+    private fun finalize() = compress(buffer.value, length, true)
+
+    override fun digestInto(destination: ByteArray, destinationOffset: Int) {
+        finalize()
+        h.toByteArray(order = LITTLE_ENDIAN).copyInto(destination, destinationOffset, endIndex = bytes)
+        reset()
+    }
+
+    private fun compress(block: ByteArray, t: Long, last: Boolean) {
+        block.copyInto(m)
+        for (i in 0..<8) v[i] = h[i]
+        for (i in 0..<8) v[i + 8] = initial[i]
+        v[12] = v[12] xor t
+        if (last) v[14] = v[14].inv()
+
+        repeat(12) { r ->
+            val s = sigma[r % 10]
+
+            mix(v, 0, 4, 8, 12, m[s[0]], m[s[1]])
+            mix(v, 1, 5, 9, 13, m[s[2]], m[s[3]])
+            mix(v, 2, 6, 10, 14, m[s[4]], m[s[5]])
+            mix(v, 3, 7, 11, 15, m[s[6]], m[s[7]])
+
+            mix(v, 0, 5, 10, 15, m[s[8]], m[s[9]])
+            mix(v, 1, 6, 11, 12, m[s[10]], m[s[11]])
+            mix(v, 2, 7, 8, 13, m[s[12]], m[s[13]])
+            mix(v, 3, 4, 9, 14, m[s[14]], m[s[15]])
+        }
+
+        for (i in 0..<8) {
+            h[i] = h[i] xor v[i] xor v[i + 8]
+        }
+    }
+
+    private fun mix(v: LongArray, a: Int, b: Int, c: Int, d: Int, x: Long, y: Long) {
+        v[a] += v[b] + x
+        v[d] = (v[d] xor v[a]).rotateRight(32)
+        v[c] += v[d]
+        v[b] = (v[b] xor v[c]).rotateRight(24)
+        v[a] += v[b] + y
+        v[d] = (v[d] xor v[a]).rotateRight(16)
+        v[c] += v[d]
+        v[b] = (v[b] xor v[c]).rotateRight(63)
+    }
+
+    companion object {
+        private val initial = longArrayOf(
+            +0x6a09e667f3bcc908L, -0x4498517a7b3558c5L,
+            +0x3c6ef372fe94f82bL, -0x5ab00ac5a0e2c90fL,
+            +0x510e527fade682d1L, -0x64fa9773d4c193e1L,
+            +0x1f83d9abfb41bd6bL, +0x5be0cd19137e2179L,
+        )
+
+        private val sigma = arrayOf(
+            intArrayOf(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15),
+            intArrayOf(14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3),
+            intArrayOf(11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4),
+            intArrayOf(7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8),
+            intArrayOf(9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13),
+            intArrayOf(2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9),
+            intArrayOf(12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11),
+            intArrayOf(13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10),
+            intArrayOf(6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5),
+            intArrayOf(10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13, 0),
+        )
+    }
+}

src/commonMain/kotlin/com/infendro/hash/blake2/Blake2s.kt

@@ -0,0 +1,127 @@
+package com.infendro.hash.blake2
+
+import com.infendro.bytes.ByteOrder.LITTLE_ENDIAN
+import com.infendro.bytes.bytearray.copyInto
+import com.infendro.bytes.intarray.toByteArray
+import com.infendro.hash.HashFunction
+
+class Blake2s(bytes: Int) : HashFunction(bytes, 64) {
+    init {
+        require(bytes in 1..32)
+    }
+
+    private val h = initial.copyOf()
+        .also { h ->
+            h[0] = h[0] xor (0x01010000 or bytes)
+        }
+
+    private val m = IntArray(16)
+    private val v = IntArray(16)
+
+    override fun reset() {
+        super.reset()
+        initial.copyInto(h)
+        h[0] = h[0] xor (0x01010000 or bytes)
+    }
+
+    override fun update(byte: Byte) {
+        if (buffer.isFull()) {
+            process()
+            buffer.reset()
+        }
+        buffer.append(byte)
+        length++
+    }
+
+    override fun update(bytes: ByteArray) {
+        if (buffer.isFull() && bytes.isNotEmpty()) {
+            process()
+            buffer.reset()
+        }
+
+        var i = 0
+
+        var free = buffer.free
+        while (i + free < bytes.size) {
+            buffer.append(bytes, startIndex = i, endIndex = i + free)
+            length += free
+            process()
+            buffer.reset()
+            free = buffer.free
+            i += block
+        }
+
+        buffer.append(bytes, startIndex = i)
+        length += (bytes.size - i)
+    }
+
+    override fun process() = compress(buffer.value, length, false)
+
+    private fun finalize() = compress(buffer.value, length, true)
+
+    override fun digestInto(destination: ByteArray, destinationOffset: Int) {
+        finalize()
+        h.toByteArray(order = LITTLE_ENDIAN).copyInto(destination, destinationOffset, endIndex = bytes)
+        reset()
+    }
+
+    private fun compress(block: ByteArray, t: Long, last: Boolean) {
+        block.copyInto(m)
+        for (i in 0..<8) v[i] = h[i]
+        for (i in 0..<8) v[i + 8] = initial[i]
+        v[12] = v[12] xor t.toInt()
+        v[13] = v[13] xor (t ushr 32).toInt()
+        if (last) v[14] = v[14].inv()
+
+        repeat(10) { r ->
+            val s = sigma[r]
+
+            mix(v, 0, 4, 8, 12, m[s[0]], m[s[1]])
+            mix(v, 1, 5, 9, 13, m[s[2]], m[s[3]])
+            mix(v, 2, 6, 10, 14, m[s[4]], m[s[5]])
+            mix(v, 3, 7, 11, 15, m[s[6]], m[s[7]])
+
+            mix(v, 0, 5, 10, 15, m[s[8]], m[s[9]])
+            mix(v, 1, 6, 11, 12, m[s[10]], m[s[11]])
+            mix(v, 2, 7, 8, 13, m[s[12]], m[s[13]])
+            mix(v, 3, 4, 9, 14, m[s[14]], m[s[15]])
+        }
+
+        for (i in 0..<8) {
+            h[i] = h[i] xor v[i] xor v[i + 8]
+        }
+    }
+
+    private fun mix(v: IntArray, a: Int, b: Int, c: Int, d: Int, x: Int, y: Int) {
+        v[a] += v[b] + x
+        v[d] = (v[d] xor v[a]).rotateRight(16)
+        v[c] += v[d]
+        v[b] = (v[b] xor v[c]).rotateRight(12)
+        v[a] += v[b] + y
+        v[d] = (v[d] xor v[a]).rotateRight(8)
+        v[c] += v[d]
+        v[b] = (v[b] xor v[c]).rotateRight(7)
+    }
+
+    companion object {
+        private val initial = intArrayOf(
+            +0x6a09e667, -0x4498517b,
+            +0x3c6ef372, -0x5ab00ac6,
+            +0x510e527f, -0x64fa9774,
+            +0x1f83d9ab, +0x5be0cd19,
+        )
+
+        private val sigma = arrayOf(
+            intArrayOf(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15),
+            intArrayOf(14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3),
+            intArrayOf(11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4),
+            intArrayOf(7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8),
+            intArrayOf(9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13),
+            intArrayOf(2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9),
+            intArrayOf(12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11),
+            intArrayOf(13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10),
+            intArrayOf(6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5),
+            intArrayOf(10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13, 0),
+        )
+    }
+}

src/commonMain/kotlin/com/infendro/hash/keccak/Keccak.kt

@@ -1,86 +1,86 @@
 package com.infendro.hash.keccak
 
-import com.infendro.bytearray.ByteOrder.LITTLE_ENDIAN
+import com.infendro.bytes.ByteOrder.LITTLE_ENDIAN
-import com.infendro.bytearray.toUByteArray
+import com.infendro.bytes.bytearray.copyInto
-import com.infendro.bytearray.toULongArray
+import com.infendro.bytes.long.copyInto
 import com.infendro.hash.HashFunction
-import kotlin.math.min
 
-abstract class Keccak internal constructor(
+open class Keccak(
+    bytes: Int,
     private val rate: Int,
-    private val domain: UByte,
+    private val domain: Byte,
-) : HashFunction() {
+) : HashFunction(bytes, rate) {
-    override val block: Int
+    init {
-        get() = rate
+        require(bytes > 0)
-
+        require(rate in 8..192 step 8)
-    private val rc = ulongArrayOf(
-        0x0000000000000001UL, 0x0000000000008082UL, 0x800000000000808aUL, 0x8000000080008000UL,
-        0x000000000000808bUL, 0x0000000080000001UL, 0x8000000080008081UL, 0x8000000000008009UL,
-        0x000000000000008aUL, 0x0000000000000088UL, 0x0000000080008009UL, 0x000000008000000aUL,
-        0x000000008000808bUL, 0x800000000000008bUL, 0x8000000000008089UL, 0x8000000000008003UL,
-        0x8000000000008002UL, 0x8000000000000080UL, 0x000000000000800aUL, 0x800000008000000aUL,
-        0x8000000080008081UL, 0x8000000000008080UL, 0x0000000080000001UL, 0x8000000080008008UL,
-    )
-
-    private val rotation = arrayOf(
-        intArrayOf(0, 36, 3, 41, 18),
-        intArrayOf(1, 44, 10, 45, 2),
-        intArrayOf(62, 6, 43, 15, 61),
-        intArrayOf(28, 55, 25, 21, 56),
-        intArrayOf(27, 20, 39, 8, 14),
-    )
-
-    override fun hash(
-        value: UByteArray,
-    ): UByteArray {
-        val state = ULongArray(25)
-
-        // padding
-        val paddedValue = buildList {
-            addAll(value)
-            add(domain)
-            while ((size % rate) != (rate - 1)) {
-                add(0x00U)
-            }
-            add(0x80U)
     }
 
-        // absorb
+    private var state = LongArray(25)
-        val blocks = paddedValue
+
-            .chunked(rate) { it.toUByteArray() }
+    private val w = LongArray(block / 8)
-        for (block in blocks) {
+    private val b = LongArray(25)
-            val numbers = block.toULongArray(LITTLE_ENDIAN)
+    private val c = LongArray(5)
-            for ((i, number) in numbers.withIndex()) {
+    private val d = LongArray(5)
-                state[i] = state[i] xor number
+
-            }
+    override fun reset() {
-            permute(state)
+        super.reset()
+        state.fill(0L)
     }
 
-        // squeeze
+    override fun process() {
-        return buildList {
+        absorb(buffer.value)
+        permute()
+    }
+
+    private fun finalize() {
+        buffer.append(domain)
+        if (buffer.free < 1) {
+            process()
+            buffer.reset()
+        }
+        buffer.jumpTo(block - 1)
+        buffer.append(0x80.toByte())
+
+        process()
+    }
+
+    override fun digestInto(destination: ByteArray, destinationOffset: Int) {
+        finalize()
+        squeeze(destination, destinationOffset)
+        reset()
+    }
+
+    private fun absorb(block: ByteArray) {
+        block.copyInto(w, order = LITTLE_ENDIAN)
+        for (i in w.indices) {
+            state[i] = state[i] xor w[i]
+        }
+    }
+
+    private fun squeeze(destination: ByteArray, destinationOffset: Int) {
+        val buffer = ByteArray(8)
+        val threshold = rate / 8
+
+        var consumed = 0
         var i = 0
-            while (size < bytes) {
+        while (consumed < bytes) {
-                if (i == rate / 8) {
+            if (i == threshold) {
-                    permute(state)
+                permute()
                 i = 0
             }
 
-                addAll(
+            val length = minOf(bytes - consumed, 8)
-                    state[i++].toUByteArray(LITTLE_ENDIAN)
+            state[i].copyInto(buffer, order = LITTLE_ENDIAN)
-                        .take(min(bytes - size, 8))
+            buffer.copyInto(destination, destinationOffset + consumed, endIndex = length)
-                )
+
+            consumed += length
+            i++
         }
-        }.toUByteArray()
     }
 
-    private fun permute(
+    private fun permute() = repeat(24) { round ->
-        a: ULongArray,
+        val a = state
-    ) {
-        val b = ULongArray(25)
-        val c = ULongArray(5)
-        val d = ULongArray(5)
 
-        repeat(24) { round ->
         // θ
         for (x in 0..4) {
             c[x] = a[x] xor a[x + 5] xor a[x + 10] xor a[x + 15] xor a[x + 20]
@@ -105,5 +105,23 @@ abstract class Keccak internal constructor(
         // ι
         a[0] = a[0] xor rc[round]
     }
+
+    companion object {
+        private val rc = longArrayOf(
+            +0x0000000000000001, +0x0000000000008082, -0x7fffffffffff7f76, -0x7fffffff7fff8000,
+            +0x000000000000808b, +0x0000000080000001, -0x7fffffff7fff7f7f, -0x7fffffffffff7ff7,
+            +0x000000000000008a, +0x0000000000000088, +0x0000000080008009, +0x000000008000000a,
+            +0x000000008000808b, -0x7fffffffffffff75, -0x7fffffffffff7f77, -0x7fffffffffff7ffd,
+            -0x7fffffffffff7ffe, -0x7fffffffffffff80, +0x000000000000800a, -0x7fffffff7ffffff6,
+            -0x7fffffff7fff7f7f, -0x7fffffffffff7f80, +0x0000000080000001, -0x7fffffff7fff7ff8,
+        )
+
+        private val rotation = arrayOf(
+            intArrayOf(0, 36, 3, 41, 18),
+            intArrayOf(1, 44, 10, 45, 2),
+            intArrayOf(62, 6, 43, 15, 61),
+            intArrayOf(28, 55, 25, 21, 56),
+            intArrayOf(27, 20, 39, 8, 14),
+        )
     }
 }

src/commonMain/kotlin/com/infendro/hash/keccak/sha3/SHA3-224.kt

@@ -2,7 +2,4 @@ package com.infendro.hash.keccak.sha3
 
 import com.infendro.hash.keccak.Keccak
 
-object `SHA3-224` : Keccak(144, 0x06U) {
+class `SHA3-224` : Keccak(28, 144, 0x06)
-    override val bytes: Int
-        get() = 28
-}

src/commonMain/kotlin/com/infendro/hash/keccak/sha3/SHA3-256.kt

@@ -2,7 +2,4 @@ package com.infendro.hash.keccak.sha3
 
 import com.infendro.hash.keccak.Keccak
 
-object `SHA3-256` : Keccak(136, 0x06U) {
+class `SHA3-256` : Keccak(32, 136, 0x06)
-    override val bytes: Int
-        get() = 32
-}

src/commonMain/kotlin/com/infendro/hash/keccak/sha3/SHA3-384.kt

@@ -2,7 +2,4 @@ package com.infendro.hash.keccak.sha3
 
 import com.infendro.hash.keccak.Keccak
 
-object `SHA3-384` : Keccak(104, 0x06U) {
+class `SHA3-384` : Keccak(48, 104, 0x06)
-    override val bytes: Int
-        get() = 48
-}

src/commonMain/kotlin/com/infendro/hash/keccak/sha3/SHA3-512.kt

@@ -2,7 +2,4 @@ package com.infendro.hash.keccak.sha3
 
 import com.infendro.hash.keccak.Keccak
 
-object `SHA3-512` : Keccak(72, 0x06U) {
+class `SHA3-512` : Keccak(64, 72, 0x06)
-    override val bytes: Int
-        get() = 64
-}

src/commonMain/kotlin/com/infendro/hash/keccak/shake/SHAKE128.kt

@@ -2,6 +2,4 @@ package com.infendro.hash.keccak.shake
 
 import com.infendro.hash.keccak.Keccak
 
-class SHAKE128(
+class SHAKE128(bytes: Int) : Keccak(bytes, 168, 0x1F)
-    override val bytes: Int,
-) : Keccak(168, 0x1FU)

src/commonMain/kotlin/com/infendro/hash/keccak/shake/SHAKE256.kt

@@ -2,6 +2,4 @@ package com.infendro.hash.keccak.shake
 
 import com.infendro.hash.keccak.Keccak
 
-class SHAKE256(
+class SHAKE256(bytes: Int) : Keccak(bytes, 136, 0x1F)
-    override val bytes: Int,
-) : Keccak(136, 0x1FU)

src/commonMain/kotlin/com/infendro/hash/md/MD5.kt

@@ -1,96 +1,56 @@
 package com.infendro.hash.md
 
-import com.infendro.bytearray.ByteOrder.LITTLE_ENDIAN
+import com.infendro.bytes.ByteOrder.LITTLE_ENDIAN
-import com.infendro.bytearray.toUByteArray
+import com.infendro.bytes.bytearray.copyInto
-import com.infendro.bytearray.toUIntArray
+import com.infendro.bytes.intarray.copyInto
 import com.infendro.hash.HashFunction
 
-object MD5 : HashFunction() {
+class MD5 : HashFunction(16, 64) {
-    override val bytes: Int
+    private val h = initial.copyOf()
-        get() = 16
 
-    override val block: Int
+    private val w = IntArray(16)
-        get() = 64
+    private val v = IntArray(4)
 
-    private val initial = uintArrayOf(
+    override fun reset() {
-        0x67452301U, 0xefcdab89U,
+        super.reset()
-        0x98badcfeU, 0x10325476U,
+        initial.copyInto(h)
-    )
-
-    private val shifts = intArrayOf(
-        7, 12, 17, 22, 7, 12, 17, 22,
-        7, 12, 17, 22, 7, 12, 17, 22,
-        5, 9, 14, 20, 5, 9, 14, 20,
-        5, 9, 14, 20, 5, 9, 14, 20,
-        4, 11, 16, 23, 4, 11, 16, 23,
-        4, 11, 16, 23, 4, 11, 16, 23,
-        6, 10, 15, 21, 6, 10, 15, 21,
-        6, 10, 15, 21, 6, 10, 15, 21,
-    )
-
-    private val c = uintArrayOf(
-        0xd76aa478U, 0xe8c7b756U, 0x242070dbU, 0xc1bdceeeU,
-        0xf57c0fafU, 0x4787c62aU, 0xa8304613U, 0xfd469501U,
-        0x698098d8U, 0x8b44f7afU, 0xffff5bb1U, 0x895cd7beU,
-        0x6b901122U, 0xfd987193U, 0xa679438eU, 0x49b40821U,
-        0xf61e2562U, 0xc040b340U, 0x265e5a51U, 0xe9b6c7aaU,
-        0xd62f105dU, 0x02441453U, 0xd8a1e681U, 0xe7d3fbc8U,
-        0x21e1cde6U, 0xc33707d6U, 0xf4d50d87U, 0x455a14edU,
-        0xa9e3e905U, 0xfcefa3f8U, 0x676f02d9U, 0x8d2a4c8aU,
-        0xfffa3942U, 0x8771f681U, 0x6d9d6122U, 0xfde5380cU,
-        0xa4beea44U, 0x4bdecfa9U, 0xf6bb4b60U, 0xbebfbc70U,
-        0x289b7ec6U, 0xeaa127faU, 0xd4ef3085U, 0x04881d05U,
-        0xd9d4d039U, 0xe6db99e5U, 0x1fa27cf8U, 0xc4ac5665U,
-        0xf4292244U, 0x432aff97U, 0xab9423a7U, 0xfc93a039U,
-        0x655b59c3U, 0x8f0ccc92U, 0xffeff47dU, 0x85845dd1U,
-        0x6fa87e4fU, 0xfe2ce6e0U, 0xa3014314U, 0x4e0811a1U,
-        0xf7537e82U, 0xbd3af235U, 0x2ad7d2bbU, 0xeb86d391U,
-    )
-
-    override fun hash(
-        value: UByteArray,
-    ): UByteArray {
-        val h = initial.copyOf()
-        val l = value.size.toULong() * 8UL
-
-        // padding
-        val paddedValue = buildList {
-            addAll(value)
-            add(0x80U)
-            while (size % 64 != 56) {
-                add(0x00U)
-            }
-            addAll(l.toUByteArray(LITTLE_ENDIAN))
     }
 
-        // process
+    override fun process() = process(buffer.value)
-        val blocks = paddedValue
+
-            .chunked(64) { it.toUByteArray() }
+    private fun finalize() {
-        for (block in blocks) {
+        buffer.append(0x80.toByte())
-            val w = block.toUIntArray(LITTLE_ENDIAN)
+        if (buffer.free < 8) {
-            process(h, w)
+            process()
+            buffer.reset()
+        }
+        buffer.jumpTo(56)
+        buffer.append(length * 8, LITTLE_ENDIAN)
+
+        process()
     }
 
-        return h.toUByteArray(LITTLE_ENDIAN)
+    override fun digestInto(destination: ByteArray, destinationOffset: Int) {
+        finalize()
+        h.copyInto(destination, destinationOffset, order = LITTLE_ENDIAN)
+        reset()
     }
 
-    private fun process(
+    private fun process(block: ByteArray) {
-        h: UIntArray,
+        block.copyInto(w, order = LITTLE_ENDIAN)
-        w: UIntArray,
+        h.copyInto(v)
-    ) {
-        val v = h.copyOf()
 
-        for (i in 0..<64) {
+        repeat(64) { i ->
             var f = when (i) {
-                in 0..15 -> (v[1] and v[2]) or (v[1].inv() and v[3])
+                in 0..<16 -> (v[1] and v[2]) or (v[1].inv() and v[3])
-                in 16..31 -> (v[3] and v[1]) or (v[3].inv() and v[2])
+                in 16..<32 -> (v[3] and v[1]) or (v[3].inv() and v[2])
-                in 32..47 -> v[1] xor v[2] xor v[3]
+                in 32..<48 -> v[1] xor v[2] xor v[3]
                 else -> v[2] xor (v[1] or v[3].inv())
             }
             val g = when (i) {
-                in 0..15 -> i
+                in 0..<16 -> i
-                in 16..31 -> (5 * i + 1) % 16
+                in 16..<32 -> (5 * i + 1) % 16
-                in 32..47 -> (3 * i + 5) % 16
+                in 32..<48 -> (3 * i + 5) % 16
                 else -> (7 * i) % 16
             }
             f += v[0] + c[i] + w[g]
@@ -100,8 +60,53 @@ object MD5 : HashFunction() {
             v[1] += f.rotateLeft(shifts[i])
         }
 
-        for (i in 0..3) {
+        for (i in 0..<4) {
             h[i] += v[i]
         }
     }
+
+    companion object {
+        private val initial = intArrayOf(
+            +0x67452301, -0x10325477,
+            -0x67452302, +0x10325476,
+        )
+
+        private val c = intArrayOf(
+            -0x28955b88, -0x173848aa, +0x242070db, -0x3e423112,
+            -0x0a83f051, +0x4787c62a, -0x57cfb9ed, -0x02b96aff,
+            +0x698098d8, -0x74bb0851, -0x0000a44f, -0x76a32842,
+            +0x6b901122, -0x02678e6d, -0x5986bc72, +0x49b40821,
+            -0x09e1da9e, -0x3fbf4cc0, +0x265e5a51, -0x16493856,
+            -0x29d0efa3, +0x02441453, -0x275e197f, -0x182c0438,
+            +0x21e1cde6, -0x3cc8f82a, -0x0b2af279, +0x455a14ed,
+            -0x561c16fb, -0x03105c08, +0x676f02d9, -0x72d5b376,
+            -0x0005c6be, -0x788e097f, +0x6d9d6122, -0x021ac7f4,
+            -0x5b4115bc, +0x4bdecfa9, -0x0944b4a0, -0x41404390,
+            +0x289b7ec6, -0x155ed806, -0x2b10cf7b, +0x04881d05,
+            -0x262b2fc7, -0x1924661b, +0x1fa27cf8, -0x3b53a99b,
+            -0x0bd6ddbc, +0x432aff97, -0x546bdc59, -0x036c5fc7,
+            +0x655b59c3, -0x70f3336e, -0x00100b83, -0x7a7ba22f,
+            +0x6fa87e4f, -0x01d31920, -0x5cfebcec, +0x4e0811a1,
+            -0x08ac817e, -0x42c50dcb, +0x2ad7d2bb, -0x14792c6f,
+        )
+
+        private val shifts = intArrayOf(
+            7, 12, 17, 22,
+            7, 12, 17, 22,
+            7, 12, 17, 22,
+            7, 12, 17, 22,
+            5, 9, 14, 20,
+            5, 9, 14, 20,
+            5, 9, 14, 20,
+            5, 9, 14, 20,
+            4, 11, 16, 23,
+            4, 11, 16, 23,
+            4, 11, 16, 23,
+            4, 11, 16, 23,
+            6, 10, 15, 21,
+            6, 10, 15, 21,
+            6, 10, 15, 21,
+            6, 10, 15, 21,
+        )
+    }
 }

src/commonMain/kotlin/com/infendro/hash/sha1/SHA1.kt

@@ -1,75 +1,55 @@
 package com.infendro.hash.sha1
 
-import com.infendro.bytearray.toUByteArray
+import com.infendro.bytes.bytearray.copyInto
-import com.infendro.bytearray.toUIntArray
+import com.infendro.bytes.intarray.copyInto
 import com.infendro.hash.HashFunction
 
-object SHA1 : HashFunction() {
+class SHA1 : HashFunction(20, 64) {
-    override val bytes: Int
+    private val h = initial.copyOf()
-        get() = 20
 
-    override val block: Int
+    private val w = IntArray(80)
-        get() = 64
+    private val v = IntArray(5)
 
-    private val initial = uintArrayOf(
+    override fun reset() {
-        0x67452301U, 0xefcdaB89U,
+        super.reset()
-        0x98badcfeU, 0x10325476U,
+        initial.copyInto(h)
-        0xc3d2e1f0U,
-    )
-
-    override fun hash(
-        value: UByteArray,
-    ): UByteArray {
-        val h = initial.copyOf()
-        val l = value.size.toULong() * 8UL
-
-        // padding
-        val paddedValue = buildList {
-            addAll(value)
-            add(0x80U)
-            while (size % 64 != 56) {
-                add(0x00U)
-            }
-            addAll(l.toUByteArray())
     }
 
-        // process
+    override fun process() = process(buffer.value)
-        val blocks = paddedValue
+
-            .chunked(64) { it.toUByteArray() }
+    private fun finalize() {
-        for (block in blocks) {
+        buffer.append(0x80.toByte())
-            val w = buildList {
+        if (buffer.free < 8) {
-                addAll(block.toUIntArray())
+            process()
+            buffer.reset()
+        }
+        buffer.jumpTo(56)
+        buffer.append(length * 8)
+
+        process()
+    }
+
+    override fun digestInto(destination: ByteArray, destinationOffset: Int) {
+        finalize()
+        h.copyInto(destination, destinationOffset)
+        reset()
+    }
+
+    private fun process(block: ByteArray) {
+        block.copyInto(w)
         for (i in 16..<80) {
-                    val word = (get(i - 3) xor get(i - 8) xor get(i - 14) xor get(i - 16)).rotateLeft(1)
+            w[i] = (w[i - 3] xor w[i - 8] xor w[i - 14] xor w[i - 16]).rotateLeft(1)
-                    add(word)
-                }
-            }.toUIntArray()
-            process(h, w)
         }
+        h.copyInto(v)
 
-        return h.toUByteArray()
+        repeat(80) { i ->
-    }
-
-    private fun process(
-        h: UIntArray,
-        w: UIntArray,
-    ) {
-        val v = h.copyOf()
-
-        for (i in 0..<80) {
             val f = when (i) {
                 in 0..<20 -> (v[1] and v[2]) or (v[1].inv() and v[3])
                 in 20..<40 -> v[1] xor v[2] xor v[3]
                 in 40..<60 -> (v[1] and v[2]) or (v[1] and v[3]) or (v[2] and v[3])
                 else -> v[1] xor v[2] xor v[3]
             }
-            val k = when (i) {
+            val temp = v[0].rotateLeft(5) + f + v[4] + k[i / 20] + w[i]
-                in 0..<20 -> 0x5a827999U
-                in 20..<40 -> 0x6ed9eba1U
-                in 40..<60 -> 0x8f1bbcdcU
-                else -> 0xca62c1d6U
-            }
-            val temp = v[0].rotateLeft(5) + f + v[4] + k + w[i]
             v[4] = v[3]
             v[3] = v[2]
             v[2] = v[1].rotateLeft(30)
@@ -77,8 +57,21 @@ object SHA1 : HashFunction() {
             v[0] = temp
         }
 
-        for (i in 0..4) {
+        for (i in 0..<5) {
             h[i] += v[i]
         }
     }
+
+    companion object {
+        private val initial = intArrayOf(
+            +0x67452301, -0x10325477,
+            -0x67452302, +0x10325476,
+            -0x3c2d1e10,
+        )
+
+        private val k = intArrayOf(
+            +0x5a827999, +0x6ed9eba1,
+            -0x70e44324, -0x359d3e2a,
+        )
+    }
 }

src/commonMain/kotlin/com/infendro/hash/sha2/SHA-224.kt

@@ -1,79 +1,55 @@
 package com.infendro.hash.sha2
 
-import com.infendro.bytearray.toUByteArray
+import com.infendro.bytes.bytearray.copyInto
-import com.infendro.bytearray.toUIntArray
+import com.infendro.bytes.intarray.copyInto
 import com.infendro.hash.HashFunction
+import com.infendro.hash.sha2.`SHA-256`.Companion.c
 
-object `SHA-224` : HashFunction() {
+class `SHA-224` : HashFunction(28, 64) {
-    override val bytes: Int
+    private val h = initial.copyOf()
-        get() = 28
 
-    override val block: Int
+    private val w = IntArray(64)
-        get() = 64
+    private val v = IntArray(8)
 
-    private val initial = uintArrayOf(
+    override fun reset() {
-        0xc1059ed8U, 0x367cd507U,
+        super.reset()
-        0x3070dd17U, 0xf70e5939U,
+        initial.copyInto(h)
-        0xffc00b31U, 0x68581511U,
-        0x64f98fa7U, 0xbefa4fa4U,
-    )
-
-    private val c = uintArrayOf(
-        0x428a2f98U, 0x71374491U, 0xb5c0fbcfU, 0xe9b5dba5U, 0x3956c25bU, 0x59f111f1U, 0x923f82a4U, 0xab1c5ed5U,
-        0xd807aa98U, 0x12835b01U, 0x243185beU, 0x550c7dc3U, 0x72be5d74U, 0x80deb1feU, 0x9bdc06a7U, 0xc19bf174U,
-        0xe49b69c1U, 0xefbe4786U, 0x0fc19dc6U, 0x240ca1ccU, 0x2de92c6fU, 0x4a7484aaU, 0x5cb0a9dcU, 0x76f988daU,
-        0x983e5152U, 0xa831c66dU, 0xb00327c8U, 0xbf597fc7U, 0xc6e00bf3U, 0xd5a79147U, 0x06ca6351U, 0x14292967U,
-        0x27b70a85U, 0x2e1b2138U, 0x4d2c6dfcU, 0x53380d13U, 0x650a7354U, 0x766a0abbU, 0x81c2c92eU, 0x92722c85U,
-        0xa2bfe8a1U, 0xa81a664bU, 0xc24b8b70U, 0xc76c51a3U, 0xd192e819U, 0xd6990624U, 0xf40e3585U, 0x106aa070U,
-        0x19a4c116U, 0x1e376c08U, 0x2748774cU, 0x34b0bcb5U, 0x391c0cb3U, 0x4ed8aa4aU, 0x5b9cca4fU, 0x682e6ff3U,
-        0x748f82eeU, 0x78a5636fU, 0x84c87814U, 0x8cc70208U, 0x90befffaU, 0xa4506cebU, 0xbef9a3f7U, 0xc67178f2U,
-    )
-
-    override fun hash(
-        value: UByteArray,
-    ): UByteArray {
-        val h = initial.copyOf()
-        val l = value.size.toULong() * 8UL
-
-        // padding
-        val paddedValue = buildList {
-            addAll(value)
-            add(0x80U)
-            while (size % 64 != 56) {
-                add(0x00U)
-            }
-            addAll(l.toUByteArray())
     }
 
-        // process
+    override fun process() = process(buffer.value)
-        val blocks = paddedValue
+
-            .chunked(64) { it.toUByteArray() }
+    private fun finalize() {
-        for (block in blocks) {
+        buffer.append(0x80.toByte())
-            val w = buildList {
+        if (buffer.free < 8) {
-                addAll(block.toUIntArray())
+            process(buffer.value)
+            buffer.reset()
+        }
+        buffer.jumpTo(56)
+        buffer.append(length * 8)
+
+        process(buffer.value)
+    }
+
+    override fun digestInto(destination: ByteArray, destinationOffset: Int) {
+        finalize()
+        h.copyInto(destination, destinationOffset, endIndex = 7)
+        reset()
+    }
+
+    private fun process(block: ByteArray) {
+        block.copyInto(w)
         for (i in 16..<64) {
-                    val s0 = get(i - 15).rotateRight(7) xor get(i - 15).rotateRight(18) xor (get(i - 15) shr 3)
+            val s0 = w[i - 15].rotateRight(7) xor w[i - 15].rotateRight(18) xor (w[i - 15] ushr 3)
-                    val s1 = get(i - 2).rotateRight(17) xor get(i - 2).rotateRight(19) xor (get(i - 2) shr 10)
+            val s1 = w[i - 2].rotateRight(17) xor w[i - 2].rotateRight(19) xor (w[i - 2] ushr 10)
-                    add(get(i - 16) + s0 + get(i - 7) + s1)
+            w[i] = (w[i - 16] + s0 + w[i - 7] + s1)
-                }
-            }.toUIntArray()
-            process(h, w)
         }
+        h.copyInto(v)
 
-        return h.sliceArray(0..6).toUByteArray()
+        repeat(64) { i ->
-    }
-
-    private fun process(
-        h: UIntArray,
-        w: UIntArray,
-    ) {
-        val v = h.copyOf()
-
-        for (i in 0..<64) {
             val s0 = v[0].rotateRight(2) xor v[0].rotateRight(13) xor v[0].rotateRight(22)
             val s1 = v[4].rotateRight(6) xor v[4].rotateRight(11) xor v[4].rotateRight(25)
             val ch = (v[4] and v[5]) xor (v[4].inv() and v[6])
-            val temp1 = v[7] + s1 + ch + this.c[i] + w[i]
+            val temp1 = v[7] + s1 + ch + c[i] + w[i]
             val maj = (v[0] and v[1]) xor (v[0] and v[2]) xor (v[1] and v[2])
             val temp2 = s0 + maj
 
@@ -87,8 +63,17 @@ object `SHA-224` : HashFunction() {
             v[0] = temp1 + temp2
         }
 
-        for (i in 0..7) {
+        for (i in 0..<8) {
             h[i] += v[i]
         }
     }
+
+    companion object {
+        private val initial = intArrayOf(
+            -0x3efa6128, +0x367cd507,
+            +0x3070dd17, -0x08f1a6c7,
+            -0x003ff4cf, +0x68581511,
+            +0x64f98fa7, -0x4105b05c,
+        )
+    }
 }

src/commonMain/kotlin/com/infendro/hash/sha2/SHA-256.kt

@@ -1,79 +1,54 @@
 package com.infendro.hash.sha2
 
-import com.infendro.bytearray.toUByteArray
+import com.infendro.bytes.bytearray.copyInto
-import com.infendro.bytearray.toUIntArray
+import com.infendro.bytes.intarray.copyInto
 import com.infendro.hash.HashFunction
 
-object `SHA-256` : HashFunction() {
+class `SHA-256` : HashFunction(32, 64) {
-    override val bytes: Int
+    private val h = initial.copyOf()
-        get() = 32
 
-    override val block: Int
+    private val w = IntArray(64)
-        get() = 64
+    private val v = IntArray(8)
 
-    private val initial = uintArrayOf(
+    override fun reset() {
-        0x6a09e667U, 0xbb67ae85U,
+        super.reset()
-        0x3c6ef372U, 0xa54ff53aU,
+        initial.copyInto(h)
-        0x510e527fU, 0x9b05688cU,
-        0x1f83d9abU, 0x5be0cd19U,
-    )
-
-    private val c = uintArrayOf(
-        0x428a2f98U, 0x71374491U, 0xb5c0fbcfU, 0xe9b5dba5U, 0x3956c25bU, 0x59f111f1U, 0x923f82a4U, 0xab1c5ed5U,
-        0xd807aa98U, 0x12835b01U, 0x243185beU, 0x550c7dc3U, 0x72be5d74U, 0x80deb1feU, 0x9bdc06a7U, 0xc19bf174U,
-        0xe49b69c1U, 0xefbe4786U, 0x0fc19dc6U, 0x240ca1ccU, 0x2de92c6fU, 0x4a7484aaU, 0x5cb0a9dcU, 0x76f988daU,
-        0x983e5152U, 0xa831c66dU, 0xb00327c8U, 0xbf597fc7U, 0xc6e00bf3U, 0xd5a79147U, 0x06ca6351U, 0x14292967U,
-        0x27b70a85U, 0x2e1b2138U, 0x4d2c6dfcU, 0x53380d13U, 0x650a7354U, 0x766a0abbU, 0x81c2c92eU, 0x92722c85U,
-        0xa2bfe8a1U, 0xa81a664bU, 0xc24b8b70U, 0xc76c51a3U, 0xd192e819U, 0xd6990624U, 0xf40e3585U, 0x106aa070U,
-        0x19a4c116U, 0x1e376c08U, 0x2748774cU, 0x34b0bcb5U, 0x391c0cb3U, 0x4ed8aa4aU, 0x5b9cca4fU, 0x682e6ff3U,
-        0x748f82eeU, 0x78a5636fU, 0x84c87814U, 0x8cc70208U, 0x90befffaU, 0xa4506cebU, 0xbef9a3f7U, 0xc67178f2U,
-    )
-
-    override fun hash(
-        value: UByteArray,
-    ): UByteArray {
-        val h = initial.copyOf()
-        val l = value.size.toULong() * 8UL
-
-        // padding
-        val paddedValue = buildList {
-            addAll(value)
-            add(0x80U)
-            while (size % 64 != 56) {
-                add(0x00U)
-            }
-            addAll(l.toUByteArray())
     }
 
-        // process
+    override fun process() = process(buffer.value)
-        val chunks = paddedValue
+
-            .chunked(64) { it.toUByteArray() }
+    private fun finalize() {
-        for (chunk in chunks) {
+        buffer.append(0x80.toByte())
-            val w = buildList {
+        if (buffer.free < 8) {
-                addAll(chunk.toUIntArray())
+            process(buffer.value)
+            buffer.reset()
+        }
+        buffer.jumpTo(56)
+        buffer.append(length * 8)
+
+        process(buffer.value)
+    }
+
+    override fun digestInto(destination: ByteArray, destinationOffset: Int) {
+        finalize()
+        h.copyInto(destination, destinationOffset)
+        reset()
+    }
+
+    private fun process(block: ByteArray) {
+        block.copyInto(w)
         for (i in 16..<64) {
-                    val s0 = get(i - 15).rotateRight(7) xor get(i - 15).rotateRight(18) xor (get(i - 15) shr 3)
+            val s0 = w[i - 15].rotateRight(7) xor w[i - 15].rotateRight(18) xor (w[i - 15] ushr 3)
-                    val s1 = get(i - 2).rotateRight(17) xor get(i - 2).rotateRight(19) xor (get(i - 2) shr 10)
+            val s1 = w[i - 2].rotateRight(17) xor w[i - 2].rotateRight(19) xor (w[i - 2] ushr 10)
-                    add(get(i - 16) + s0 + get(i - 7) + s1)
+            w[i] = (w[i - 16] + s0 + w[i - 7] + s1)
-                }
-            }.toUIntArray()
-            process(h, w)
         }
+        h.copyInto(v)
 
-        return h.toUByteArray()
+        repeat(64) { i ->
-    }
-
-    private fun process(
-        h: UIntArray,
-        w: UIntArray,
-    ) {
-        val v = h.copyOf()
-
-        for (i in 0..<64) {
             val s0 = v[0].rotateRight(2) xor v[0].rotateRight(13) xor v[0].rotateRight(22)
             val s1 = v[4].rotateRight(6) xor v[4].rotateRight(11) xor v[4].rotateRight(25)
             val ch = (v[4] and v[5]) xor (v[4].inv() and v[6])
-            val temp1 = v[7] + s1 + ch + this.c[i] + w[i]
+            val temp1 = v[7] + s1 + ch + c[i] + w[i]
             val maj = (v[0] and v[1]) xor (v[0] and v[2]) xor (v[1] and v[2])
             val temp2 = s0 + maj
 
@@ -87,8 +62,28 @@ object `SHA-256` : HashFunction() {
             v[0] = temp1 + temp2
         }
 
-        for (i in 0..7) {
+        for (i in 0..<8) {
             h[i] += v[i]
         }
     }
+
+    companion object {
+        private val initial = intArrayOf(
+            +0x6a09e667, -0x4498517b,
+            +0x3c6ef372, -0x5ab00ac6,
+            +0x510e527f, -0x64fa9774,
+            +0x1f83d9ab, +0x5be0cd19,
+        )
+
+        internal val c = intArrayOf(
+            +0x428a2f98, +0x71374491, -0x4a3f0431, -0x164a245b, +0x3956c25b, +0x59f111f1, -0x6dc07d5c, -0x54e3a12b,
+            -0x27f85568, +0x12835b01, +0x243185be, +0x550c7dc3, +0x72be5d74, -0x7f214e02, -0x6423f959, -0x3e640e8c,
+            -0x1b64963f, -0x1041b87a, +0x0fc19dc6, +0x240ca1cc, +0x2de92c6f, +0x4a7484aa, +0x5cb0a9dc, +0x76f988da,
+            -0x67c1aeae, -0x57ce3993, -0x4ffcd838, -0x40a68039, -0x391ff40d, -0x2a586eb9, +0x06ca6351, +0x14292967,
+            +0x27b70a85, +0x2e1b2138, +0x4d2c6dfc, +0x53380d13, +0x650a7354, +0x766a0abb, -0x7e3d36d2, -0x6d8dd37b,
+            -0x5d40175f, -0x57e599b5, -0x3db47490, -0x3893ae5d, -0x2e6d17e7, -0x2966f9dc, -0x0bf1ca7b, +0x106aa070,
+            +0x19a4c116, +0x1e376c08, +0x2748774c, +0x34b0bcb5, +0x391c0cb3, +0x4ed8aa4a, +0x5b9cca4f, +0x682e6ff3,
+            +0x748f82ee, +0x78a5636f, -0x7b3787ec, -0x7338fdf8, -0x6f410006, -0x5baf9315, -0x41065c09, -0x398e870e,
+        )
+    }
 }

src/commonMain/kotlin/com/infendro/hash/sha2/SHA-384.kt

@@ -1,91 +1,55 @@
 package com.infendro.hash.sha2
 
-import com.infendro.bytearray.toUByteArray
+import com.infendro.bytes.bytearray.copyInto
-import com.infendro.bytearray.toULongArray
+import com.infendro.bytes.longarray.copyInto
 import com.infendro.hash.HashFunction
+import com.infendro.hash.sha2.`SHA-512`.Companion.c
 
-object `SHA-384` : HashFunction() {
+class `SHA-384` : HashFunction(48, 128) {
-    override val bytes: Int
+    private val h = initial.copyOf()
-        get() = 48
 
-    override val block: Int
+    private val w = LongArray(80)
-        get() = 128
+    private val v = LongArray(8)
 
-    private val initial = ulongArrayOf(
+    override fun reset() {
-        0xcbbb9d5dc1059ed8UL, 0x629a292a367cd507UL,
+        super.reset()
-        0x9159015a3070dd17UL, 0x152fecd8f70e5939UL,
+        initial.copyInto(h)
-        0x67332667ffc00b31UL, 0x8eb44a8768581511UL,
-        0xdb0c2e0d64f98fa7UL, 0x47b5481dbefa4fa4UL,
-    )
-
-    private val c = ulongArrayOf(
-        0x428a2f98d728ae22UL, 0x7137449123ef65cdUL, 0xb5c0fbcfec4d3b2fUL, 0xe9b5dba58189dbbcUL,
-        0x3956c25bf348b538UL, 0x59f111f1b605d019UL, 0x923f82a4af194f9bUL, 0xab1c5ed5da6d8118UL,
-        0xd807aa98a3030242UL, 0x12835b0145706fbeUL, 0x243185be4ee4b28cUL, 0x550c7dc3d5ffb4e2UL,
-        0x72be5d74f27b896fUL, 0x80deb1fe3b1696b1UL, 0x9bdc06a725c71235UL, 0xc19bf174cf692694UL,
-        0xe49b69c19ef14ad2UL, 0xefbe4786384f25e3UL, 0x0fc19dc68b8cd5b5UL, 0x240ca1cc77ac9c65UL,
-        0x2de92c6f592b0275UL, 0x4a7484aa6ea6e483UL, 0x5cb0a9dcbd41fbd4UL, 0x76f988da831153b5UL,
-        0x983e5152ee66dfabUL, 0xa831c66d2db43210UL, 0xb00327c898fb213fUL, 0xbf597fc7beef0ee4UL,
-        0xc6e00bf33da88fc2UL, 0xd5a79147930aa725UL, 0x06ca6351e003826fUL, 0x142929670a0e6e70UL,
-        0x27b70a8546d22ffcUL, 0x2e1b21385c26c926UL, 0x4d2c6dfc5ac42aedUL, 0x53380d139d95b3dfUL,
-        0x650a73548baf63deUL, 0x766a0abb3c77b2a8UL, 0x81c2c92e47edaee6UL, 0x92722c851482353bUL,
-        0xa2bfe8a14cf10364UL, 0xa81a664bbc423001UL, 0xc24b8b70d0f89791UL, 0xc76c51a30654be30UL,
-        0xd192e819d6ef5218UL, 0xd69906245565a910UL, 0xf40e35855771202aUL, 0x106aa07032bbd1b8UL,
-        0x19a4c116b8d2d0c8UL, 0x1e376c085141ab53UL, 0x2748774cdf8eeb99UL, 0x34b0bcb5e19b48a8UL,
-        0x391c0cb3c5c95a63UL, 0x4ed8aa4ae3418acbUL, 0x5b9cca4f7763e373UL, 0x682e6ff3d6b2b8a3UL,
-        0x748f82ee5defb2fcUL, 0x78a5636f43172f60UL, 0x84c87814a1f0ab72UL, 0x8cc702081a6439ecUL,
-        0x90befffa23631e28UL, 0xa4506cebde82bde9UL, 0xbef9a3f7b2c67915UL, 0xc67178f2e372532bUL,
-        0xca273eceea26619cUL, 0xd186b8c721c0c207UL, 0xeada7dd6cde0eb1eUL, 0xf57d4f7fee6ed178UL,
-        0x06f067aa72176fbaUL, 0x0a637dc5a2c898a6UL, 0x113f9804bef90daeUL, 0x1b710b35131c471bUL,
-        0x28db77f523047d84UL, 0x32caab7b40c72493UL, 0x3c9ebe0a15c9bebcUL, 0x431d67c49c100d4cUL,
-        0x4cc5d4becb3e42b6UL, 0x597f299cfc657e2aUL, 0x5fcb6fab3ad6faecUL, 0x6c44198c4a475817UL,
-    )
-
-    override fun hash(
-        value: UByteArray,
-    ): UByteArray {
-        val h = initial.copyOf()
-        val l = value.size.toULong() * 8UL
-
-        // padding
-        val paddedValue = buildList {
-            addAll(value)
-            add(0x80U)
-            while (size % 128 != 120) {
-                add(0x00U)
-            }
-            addAll(l.toUByteArray())
     }
 
-        // process
+    override fun process() = process(buffer.value)
-        val blocks = paddedValue
+
-            .chunked(128) { it.toUByteArray() }
+    private fun finalize() {
-        for (block in blocks) {
+        buffer.append(0x80.toByte())
-            val w = buildList {
+        if (buffer.free < 16) {
-                addAll(block.toULongArray())
+            process(buffer.value)
+            buffer.reset()
+        }
+        buffer.jumpTo(112)
+        buffer.append(length * 8)
+
+        process(buffer.value)
+    }
+
+    override fun digestInto(destination: ByteArray, destinationOffset: Int) {
+        finalize()
+        h.copyInto(destination, destinationOffset, endIndex = 6)
+        reset()
+    }
+
+    private fun process(block: ByteArray) {
+        block.copyInto(w)
         for (i in 16..<80) {
-                    val s0 = get(i - 15).rotateRight(1) xor get(i - 15).rotateRight(8) xor (get(i - 15) shr 7)
+            val s0 = w[i - 15].rotateRight(1) xor w[i - 15].rotateRight(8) xor (w[i - 15] ushr 7)
-                    val s1 = get(i - 2).rotateRight(19) xor get(i - 2).rotateRight(61) xor (get(i - 2) shr 6)
+            val s1 = w[i - 2].rotateRight(19) xor w[i - 2].rotateRight(61) xor (w[i - 2] ushr 6)
-                    add(get(i - 16) + s0 + get(i - 7) + s1)
+            w[i] = (w[i - 16] + s0 + w[i - 7] + s1)
-                }
-            }.toULongArray()
-            process(h, w)
         }
+        h.copyInto(v)
 
-        return h.sliceArray(0..5).toUByteArray()
+        repeat(80) { i ->
-    }
-
-    private fun process(
-        h: ULongArray,
-        w: ULongArray,
-    ) {
-        val v = h.copyOf()
-
-        for (i in 0..<80) {
             val s0 = v[0].rotateRight(28) xor v[0].rotateRight(34) xor v[0].rotateRight(39)
             val s1 = v[4].rotateRight(14) xor v[4].rotateRight(18) xor v[4].rotateRight(41)
             val ch = (v[4] and v[5]) xor (v[4].inv() and v[6])
-            val temp1 = v[7] + s1 + ch + this.c[i] + w[i]
+            val temp1 = v[7] + s1 + ch + c[i] + w[i]
             val maj = (v[0] and v[1]) xor (v[0] and v[2]) xor (v[1] and v[2])
             val temp2 = s0 + maj
 
@@ -99,8 +63,17 @@ object `SHA-384` : HashFunction() {
             v[0] = temp1 + temp2
         }
 
-        for (i in 0..7) {
+        for (i in 0..<8) {
             h[i] += v[i]
         }
     }
+
+    companion object {
+        private val initial = longArrayOf(
+            -0x344462a23efa6128, +0x629a292a367cd507,
+            -0x6ea6fea5cf8f22e9, +0x152fecd8f70e5939,
+            +0x67332667ffc00b31, -0x714bb57897a7eaef,
+            -0x24f3d1f29b067059, +0x47b5481dbefa4fa4,
+        )
+    }
 }

src/commonMain/kotlin/com/infendro/hash/sha2/SHA-512.kt

@@ -1,91 +1,54 @@
 package com.infendro.hash.sha2
 
-import com.infendro.bytearray.toUByteArray
+import com.infendro.bytes.bytearray.copyInto
-import com.infendro.bytearray.toULongArray
+import com.infendro.bytes.longarray.copyInto
 import com.infendro.hash.HashFunction
 
-object `SHA-512` : HashFunction() {
+class `SHA-512` : HashFunction(64, 128) {
-    override val bytes: Int
+    private val h = initial.copyOf()
-        get() = 64
 
-    override val block: Int
+    private val w = LongArray(80)
-        get() = 128
+    private val v = LongArray(8)
 
-    private val initial = ulongArrayOf(
+    override fun reset() {
-        0x6a09e667f3bcc908UL, 0xbb67ae8584caa73bUL,
+        super.reset()
-        0x3c6ef372fe94f82bUL, 0xa54ff53a5f1d36f1UL,
+        initial.copyInto(h)
-        0x510e527fade682d1UL, 0x9b05688c2b3e6c1fUL,
-        0x1f83d9abfb41bd6bUL, 0x5be0cd19137e2179UL,
-    )
-
-    private val c = ulongArrayOf(
-        0x428a2f98d728ae22UL, 0x7137449123ef65cdUL, 0xb5c0fbcfec4d3b2fUL, 0xe9b5dba58189dbbcUL,
-        0x3956c25bf348b538UL, 0x59f111f1b605d019UL, 0x923f82a4af194f9bUL, 0xab1c5ed5da6d8118UL,
-        0xd807aa98a3030242UL, 0x12835b0145706fbeUL, 0x243185be4ee4b28cUL, 0x550c7dc3d5ffb4e2UL,
-        0x72be5d74f27b896fUL, 0x80deb1fe3b1696b1UL, 0x9bdc06a725c71235UL, 0xc19bf174cf692694UL,
-        0xe49b69c19ef14ad2UL, 0xefbe4786384f25e3UL, 0x0fc19dc68b8cd5b5UL, 0x240ca1cc77ac9c65UL,
-        0x2de92c6f592b0275UL, 0x4a7484aa6ea6e483UL, 0x5cb0a9dcbd41fbd4UL, 0x76f988da831153b5UL,
-        0x983e5152ee66dfabUL, 0xa831c66d2db43210UL, 0xb00327c898fb213fUL, 0xbf597fc7beef0ee4UL,
-        0xc6e00bf33da88fc2UL, 0xd5a79147930aa725UL, 0x06ca6351e003826fUL, 0x142929670a0e6e70UL,
-        0x27b70a8546d22ffcUL, 0x2e1b21385c26c926UL, 0x4d2c6dfc5ac42aedUL, 0x53380d139d95b3dfUL,
-        0x650a73548baf63deUL, 0x766a0abb3c77b2a8UL, 0x81c2c92e47edaee6UL, 0x92722c851482353bUL,
-        0xa2bfe8a14cf10364UL, 0xa81a664bbc423001UL, 0xc24b8b70d0f89791UL, 0xc76c51a30654be30UL,
-        0xd192e819d6ef5218UL, 0xd69906245565a910UL, 0xf40e35855771202aUL, 0x106aa07032bbd1b8UL,
-        0x19a4c116b8d2d0c8UL, 0x1e376c085141ab53UL, 0x2748774cdf8eeb99UL, 0x34b0bcb5e19b48a8UL,
-        0x391c0cb3c5c95a63UL, 0x4ed8aa4ae3418acbUL, 0x5b9cca4f7763e373UL, 0x682e6ff3d6b2b8a3UL,
-        0x748f82ee5defb2fcUL, 0x78a5636f43172f60UL, 0x84c87814a1f0ab72UL, 0x8cc702081a6439ecUL,
-        0x90befffa23631e28UL, 0xa4506cebde82bde9UL, 0xbef9a3f7b2c67915UL, 0xc67178f2e372532bUL,
-        0xca273eceea26619cUL, 0xd186b8c721c0c207UL, 0xeada7dd6cde0eb1eUL, 0xf57d4f7fee6ed178UL,
-        0x06f067aa72176fbaUL, 0x0a637dc5a2c898a6UL, 0x113f9804bef90daeUL, 0x1b710b35131c471bUL,
-        0x28db77f523047d84UL, 0x32caab7b40c72493UL, 0x3c9ebe0a15c9bebcUL, 0x431d67c49c100d4cUL,
-        0x4cc5d4becb3e42b6UL, 0x597f299cfc657e2aUL, 0x5fcb6fab3ad6faecUL, 0x6c44198c4a475817UL,
-    )
-
-    override fun hash(
-        value: UByteArray,
-    ): UByteArray {
-        val h = initial.copyOf()
-        val l = value.size.toULong() * 8UL
-
-        // padding
-        val paddedValue = buildList {
-            addAll(value)
-            add(0x80U)
-            while (size % 128 != 120) {
-                add(0x00U)
-            }
-            addAll(l.toUByteArray())
     }
 
-        // process
+    override fun process() = process(buffer.value)
-        val blocks = paddedValue
+
-            .chunked(128) { it.toUByteArray() }
+    private fun finalize() {
-        for (block in blocks) {
+        buffer.append(0x80.toByte())
-            val w = buildList {
+        if (buffer.free < 16) {
-                addAll(block.toULongArray())
+            process(buffer.value)
+            buffer.reset()
+        }
+        buffer.jumpTo(112)
+        buffer.append(length * 8)
+
+        process(buffer.value)
+    }
+
+    override fun digestInto(destination: ByteArray, destinationOffset: Int) {
+        finalize()
+        h.copyInto(destination, destinationOffset)
+        reset()
+    }
+
+    private fun process(block: ByteArray) {
+        block.copyInto(w)
         for (i in 16..<80) {
-                    val s0 = get(i - 15).rotateRight(1) xor get(i - 15).rotateRight(8) xor (get(i - 15) shr 7)
+            val s0 = w[i - 15].rotateRight(1) xor w[i - 15].rotateRight(8) xor (w[i - 15] ushr 7)
-                    val s1 = get(i - 2).rotateRight(19) xor get(i - 2).rotateRight(61) xor (get(i - 2) shr 6)
+            val s1 = w[i - 2].rotateRight(19) xor w[i - 2].rotateRight(61) xor (w[i - 2] ushr 6)
-                    add(get(i - 16) + s0 + get(i - 7) + s1)
+            w[i] = (w[i - 16] + s0 + w[i - 7] + s1)
-                }
-            }.toULongArray()
-            process(h, w)
         }
+        h.copyInto(v)
 
-        return h.toUByteArray()
+        repeat(80) { i ->
-    }
-
-    private fun process(
-        h: ULongArray,
-        w: ULongArray,
-    ) {
-        val v = h.copyOf()
-
-        for (i in 0..<80) {
             val s0 = v[0].rotateRight(28) xor v[0].rotateRight(34) xor v[0].rotateRight(39)
             val s1 = v[4].rotateRight(14) xor v[4].rotateRight(18) xor v[4].rotateRight(41)
             val ch = (v[4] and v[5]) xor (v[4].inv() and v[6])
-            val temp1 = v[7] + s1 + ch + this.c[i] + w[i]
+            val temp1 = v[7] + s1 + ch + c[i] + w[i]
             val maj = (v[0] and v[1]) xor (v[0] and v[2]) xor (v[1] and v[2])
             val temp2 = s0 + maj
 
@@ -99,8 +62,40 @@ object `SHA-512` : HashFunction() {
             v[0] = temp1 + temp2
         }
 
-        for (i in 0..7) {
+        for (i in 0..<8) {
             h[i] += v[i]
         }
     }
+
+    companion object {
+        private val initial = longArrayOf(
+            +0x6a09e667f3bcc908, -0x4498517a7b3558c5,
+            +0x3c6ef372fe94f82b, -0x5ab00ac5a0e2c90f,
+            +0x510e527fade682d1, -0x64fa9773d4c193e1,
+            +0x1f83d9abfb41bd6b, +0x5be0cd19137e2179,
+        )
+
+        internal val c = longArrayOf(
+            +0x428a2f98d728ae22, +0x7137449123ef65cd, -0x4a3f043013b2c4d1, -0x164a245a7e762444,
+            +0x3956c25bf348b538, +0x59f111f1b605d019, -0x6dc07d5b50e6b065, -0x54e3a12a25927ee8,
+            -0x27f855675cfcfdbe, +0x12835b0145706fbe, +0x243185be4ee4b28c, +0x550c7dc3d5ffb4e2,
+            +0x72be5d74f27b896f, -0x7f214e01c4e9694f, -0x6423f958da38edcb, -0x3e640e8b3096d96c,
+            -0x1b64963e610eb52e, -0x1041b879c7b0da1d, +0x0fc19dc68b8cd5b5, +0x240ca1cc77ac9c65,
+            +0x2de92c6f592b0275, +0x4a7484aa6ea6e483, +0x5cb0a9dcbd41fbd4, +0x76f988da831153b5,
+            -0x67c1aead11992055, -0x57ce3992d24bcdf0, -0x4ffcd8376704dec1, -0x40a680384110f11c,
+            -0x391ff40cc257703e, -0x2a586eb86cf558db, +0x06ca6351e003826f, +0x142929670a0e6e70,
+            +0x27b70a8546d22ffc, +0x2e1b21385c26c926, +0x4d2c6dfc5ac42aed, +0x53380d139d95b3df,
+            +0x650a73548baf63de, +0x766a0abb3c77b2a8, -0x7e3d36d1b812511a, -0x6d8dd37aeb7dcac5,
+            -0x5d40175eb30efc9c, -0x57e599b443bdcfff, -0x3db4748f2f07686f, -0x3893ae5cf9ab41d0,
+            -0x2e6d17e62910ade8, -0x2966f9dbaa9a56f0, -0x0bf1ca7aa88edfd6, +0x106aa07032bbd1b8,
+            +0x19a4c116b8d2d0c8, +0x1e376c085141ab53, +0x2748774cdf8eeb99, +0x34b0bcb5e19b48a8,
+            +0x391c0cb3c5c95a63, +0x4ed8aa4ae3418acb, +0x5b9cca4f7763e373, +0x682e6ff3d6b2b8a3,
+            +0x748f82ee5defb2fc, +0x78a5636f43172f60, -0x7b3787eb5e0f548e, -0x7338fdf7e59bc614,
+            -0x6f410005dc9ce1d8, -0x5baf9314217d4217, -0x41065c084d3986eb, -0x398e870d1c8dacd5,
+            -0x35d8c13115d99e64, -0x2e794738de3f3df9, -0x15258229321f14e2, -0x0a82b08011912e88,
+            +0x06f067aa72176fba, +0x0a637dc5a2c898a6, +0x113f9804bef90dae, +0x1b710b35131c471b,
+            +0x28db77f523047d84, +0x32caab7b40c72493, +0x3c9ebe0a15c9bebc, +0x431d67c49c100d4c,
+            +0x4cc5d4becb3e42b6, +0x597f299cfc657e2a, +0x5fcb6fab3ad6faec, +0x6c44198c4a475817,
+        )
+    }
 }

src/commonTest/kotlin/com/infendro/hash/blake/Blake-224.kt

@@ -4,8 +4,8 @@ import kotlin.test.Test
 import kotlin.test.assertContentEquals
 import kotlin.test.assertEquals
 
-class `Blake-224 Test` {
+class `Blake-224_Test` {
-    val function = `Blake-224`
+    val function = `Blake-224`()
 
     @Test
     fun `bytes and block`() {
@@ -16,52 +16,37 @@ class `Blake-224 Test` {
 
     @Test
     fun `empty bytearray`() {
-        val expected = ubyteArrayOf(
+        val expected = byteArrayOf(
-            0x7dU, 0xc5U, 0x31U, 0x3bU,
+            +0x7d, -0x3b, +0x31, +0x3b, +0x1c, +0x04, +0x51, +0x2a,
-            0x1cU, 0x04U, 0x51U, 0x2aU,
+            +0x17, +0x4b, -0x2a, +0x50, +0x3b, -0x77, +0x60, +0x7a,
-            0x17U, 0x4bU, 0xd6U, 0x50U,
+            -0x14, -0x42, -0x20, -0x70, +0x3d, +0x40, -0x58, -0x5b,
-            0x3bU, 0x89U, 0x60U, 0x7aU,
+            +0x69, -0x37, +0x4e, -0x13,
-            0xecU, 0xbeU, 0xe0U, 0x90U,
-            0x3dU, 0x40U, 0xa8U, 0xa5U,
-            0x69U, 0xc9U, 0x4eU, 0xedU,
-        )
-        val actual = function.hash(
-            UByteArray(0)
         )
+        val actual = function.hash(ByteArray(0))
         assertContentEquals(expected, actual)
     }
 
     @Test
     fun `one block`() {
-        val expected = ubyteArrayOf(
+        val expected = byteArrayOf(
-            0x45U, 0x04U, 0xcbU, 0x03U,
+            +0x45, +0x04, -0x35, +0x03, +0x14, -0x05, +0x2a, +0x4f,
-            0x14U, 0xfbU, 0x2aU, 0x4fU,
+            +0x7a, +0x69, +0x2e, +0x69, +0x6e, +0x48, +0x79, +0x12,
-            0x7aU, 0x69U, 0x2eU, 0x69U,
+            -0x02, +0x3f, +0x24, +0x68, -0x02, +0x31, +0x2c, +0x73,
-            0x6eU, 0x48U, 0x79U, 0x12U,
+            -0x5b, +0x27, -0x72, -0x3b,
-            0xfeU, 0x3fU, 0x24U, 0x68U,
-            0xfeU, 0x31U, 0x2cU, 0x73U,
-            0xa5U, 0x27U, 0x8eU, 0xc5U,
-        )
-        val actual = function.hash(
-            UByteArray(1)
         )
+        val actual = function.hash(ByteArray(1))
         assertContentEquals(expected, actual)
     }
 
     @Test
     fun `two blocks`() {
-        val expected = ubyteArrayOf(
+        val expected = byteArrayOf(
-            0xf5U, 0xaaU, 0x00U, 0xddU,
+            -0x0b, -0x56, +0x00, -0x23, +0x1c, -0x48, +0x47, -0x1d,
-            0x1cU, 0xb8U, 0x47U, 0xe3U,
+            +0x14, +0x03, +0x72, -0x51, +0x7b, +0x5c, +0x46, -0x4c,
-            0x14U, 0x03U, 0x72U, 0xafU,
+            -0x78, -0x73, -0x7e, -0x38, -0x40, -0x57, +0x17, -0x6f,
-            0x7bU, 0x5cU, 0x46U, 0xb4U,
+            +0x3c, -0x05, +0x5d, +0x04,
-            0x88U, 0x8dU, 0x82U, 0xc8U,
-            0xc0U, 0xa9U, 0x17U, 0x91U,
-            0x3cU, 0xfbU, 0x5dU, 0x04U,
-        )
-        val actual = function.hash(
-            UByteArray(72)
         )
+        val actual = function.hash(ByteArray(72))
         assertContentEquals(expected, actual)
     }
 }

src/commonTest/kotlin/com/infendro/hash/blake/Blake-256.kt

@@ -4,8 +4,8 @@ import kotlin.test.Test
 import kotlin.test.assertContentEquals
 import kotlin.test.assertEquals
 
-class `Blake-256 Test` {
+class `Blake-256_Test` {
-    val function = `Blake-256`
+    val function = `Blake-256`()
 
     @Test
     fun `bytes and block`() {
@@ -16,55 +16,37 @@ class `Blake-256 Test` {
 
     @Test
     fun `empty bytearray`() {
-        val expected = ubyteArrayOf(
+        val expected = byteArrayOf(
-            0x71U, 0x6fU, 0x6eU, 0x86U,
+            +0x71, +0x6f, +0x6e, -0x7a, +0x3f, +0x74, +0x4b, -0x66,
-            0x3fU, 0x74U, 0x4bU, 0x9aU,
+            -0x3e, +0x2c, -0x69, -0x14, +0x7b, +0x76, -0x16, +0x5f,
-            0xc2U, 0x2cU, 0x97U, 0xecU,
+            +0x59, +0x08, -0x44, +0x5b, +0x2f, +0x67, -0x3a, +0x15,
-            0x7bU, 0x76U, 0xeaU, 0x5fU,
+            +0x10, -0x41, -0x3c, +0x75, +0x13, -0x7c, -0x16, +0x7a,
-            0x59U, 0x08U, 0xbcU, 0x5bU,
-            0x2fU, 0x67U, 0xc6U, 0x15U,
-            0x10U, 0xbfU, 0xc4U, 0x75U,
-            0x13U, 0x84U, 0xeaU, 0x7aU,
-        )
-        val actual = function.hash(
-            UByteArray(0)
         )
+        val actual = function.hash(ByteArray(0))
         assertContentEquals(expected, actual)
     }
 
     @Test
     fun `one block`() {
-        val expected = ubyteArrayOf(
+        val expected = byteArrayOf(
-            0x0cU, 0xe8U, 0xd4U, 0xefU,
+            +0x0c, -0x18, -0x2c, -0x11, +0x4d, -0x29, -0x33, -0x73,
-            0x4dU, 0xd7U, 0xcdU, 0x8dU,
+            +0x62, -0x21, -0x22, -0x27, -0x2c, -0x13, -0x50, -0x59,
-            0x62U, 0xdfU, 0xdeU, 0xd9U,
+            +0x74, -0x52, +0x6a, +0x41, -0x6e, -0x66, +0x74, -0x26,
-            0xd4U, 0xedU, 0xb0U, 0xa7U,
+            +0x23, +0x10, -0x62, -0x71, +0x11, +0x13, -0x64, -0x79,
-            0x74U, 0xaeU, 0x6aU, 0x41U,
-            0x92U, 0x9aU, 0x74U, 0xdaU,
-            0x23U, 0x10U, 0x9eU, 0x8fU,
-            0x11U, 0x13U, 0x9cU, 0x87U,
-        )
-        val actual = function.hash(
-            UByteArray(1)
         )
+        val actual = function.hash(ByteArray(1))
         assertContentEquals(expected, actual)
     }
 
     @Test
     fun `two blocks`() {
-        val expected = ubyteArrayOf(
+        val expected = byteArrayOf(
-            0xd4U, 0x19U, 0xbaU, 0xd3U,
+            -0x2c, +0x19, -0x46, -0x2d, +0x2d, +0x50, +0x4f, -0x49,
-            0x2dU, 0x50U, 0x4fU, 0xb7U,
+            -0x2c, +0x4d, +0x46, +0x0c, +0x42, -0x3b, +0x59, +0x3f,
-            0xd4U, 0x4dU, 0x46U, 0x0cU,
+            -0x1b, +0x44, -0x06, +0x4c, +0x13, +0x5d, -0x14, +0x31,
-            0x42U, 0xc5U, 0x59U, 0x3fU,
+            -0x1e, +0x1b, -0x27, -0x55, -0x24, -0x3e, +0x2d, +0x41,
-            0xe5U, 0x44U, 0xfaU, 0x4cU,
-            0x13U, 0x5dU, 0xecU, 0x31U,
-            0xe2U, 0x1bU, 0xd9U, 0xabU,
-            0xdcU, 0xc2U, 0x2dU, 0x41U,
-        )
-        val actual = function.hash(
-            UByteArray(72)
         )
+        val actual = function.hash(ByteArray(72))
         assertContentEquals(expected, actual)
     }
 }

src/commonTest/kotlin/com/infendro/hash/blake/Blake-384.kt

@@ -4,8 +4,8 @@ import kotlin.test.Test
 import kotlin.test.assertContentEquals
 import kotlin.test.assertEquals
 
-class `Blake-384 Test` {
+class `Blake-384_Test` {
-    val function = `Blake-384`
+    val function = `Blake-384`()
 
     @Test
     fun `bytes and block`() {
@@ -16,67 +16,43 @@ class `Blake-384 Test` {
 
     @Test
     fun `empty bytearray`() {
-        val expected = ubyteArrayOf(
+        val expected = byteArrayOf(
-            0xc6U, 0xcbU, 0xd8U, 0x9cU,
+            -0x3a, -0x35, -0x28, -0x64, -0x6e, +0x6a, -0x4b, +0x25,
-            0x92U, 0x6aU, 0xb5U, 0x25U,
+            -0x3e, +0x42, -0x1a, +0x62, +0x1f, +0x2f, +0x5f, -0x59,
-            0xc2U, 0x42U, 0xe6U, 0x62U,
+            +0x3a, -0x5c, -0x51, -0x1d, -0x27, -0x1e, +0x4a, -0x13,
-            0x1fU, 0x2fU, 0x5fU, 0xa7U,
+            +0x72, +0x7f, -0x56, -0x53, -0x2a, -0x51, +0x38, -0x4a,
-            0x3aU, 0xa4U, 0xafU, 0xe3U,
+            +0x20, -0x43, -0x4a, +0x23, -0x23, +0x2b, +0x47, -0x78,
-            0xd9U, 0xe2U, 0x4aU, 0xedU,
+            -0x4f, -0x38, +0x08, +0x69, -0x7c, -0x51, -0x79, +0x06,
-            0x72U, 0x7fU, 0xaaU, 0xadU,
-            0xd6U, 0xafU, 0x38U, 0xb6U,
-            0x20U, 0xbdU, 0xb6U, 0x23U,
-            0xddU, 0x2bU, 0x47U, 0x88U,
-            0xb1U, 0xc8U, 0x08U, 0x69U,
-            0x84U, 0xafU, 0x87U, 0x06U,
-        )
-        val actual = function.hash(
-            UByteArray(0)
         )
+        val actual = function.hash(ByteArray(0))
         assertContentEquals(expected, actual)
     }
 
     @Test
     fun `one block`() {
-        val expected = ubyteArrayOf(
+        val expected = byteArrayOf(
-            0x10U, 0x28U, 0x1fU, 0x67U,
+            +0x10, +0x28, +0x1f, +0x67, -0x1f, +0x35, -0x17, +0x0a,
-            0xe1U, 0x35U, 0xe9U, 0x0aU,
+            -0x18, -0x18, -0x7e, +0x25, +0x1a, +0x35, +0x55, +0x10,
-            0xe8U, 0xe8U, 0x82U, 0x25U,
+            -0x59, +0x19, +0x36, +0x7a, -0x29, +0x02, +0x27, -0x4f,
-            0x1aU, 0x35U, 0x55U, 0x10U,
+            +0x37, +0x34, +0x3e, +0x1b, -0x3f, +0x22, +0x01, +0x5c,
-            0xa7U, 0x19U, 0x36U, 0x7aU,
+            +0x29, +0x39, +0x1e, -0x7b, +0x45, -0x4b, +0x27, +0x2d,
-            0xd7U, 0x02U, 0x27U, 0xb1U,
+            +0x13, -0x59, -0x3e, -0x79, -0x63, -0x5d, -0x28, +0x07,
-            0x37U, 0x34U, 0x3eU, 0x1bU,
-            0xc1U, 0x22U, 0x01U, 0x5cU,
-            0x29U, 0x39U, 0x1eU, 0x85U,
-            0x45U, 0xb5U, 0x27U, 0x2dU,
-            0x13U, 0xa7U, 0xc2U, 0x87U,
-            0x9dU, 0xa3U, 0xd8U, 0x07U
-        )
-        val actual = function.hash(
-            UByteArray(1)
         )
+        val actual = function.hash(ByteArray(1))
         assertContentEquals(expected, actual)
     }
 
     @Test
     fun `two blocks`() {
-        val expected = ubyteArrayOf(
+        val expected = byteArrayOf(
-            0x0bU, 0x98U, 0x45U, 0xddU,
+            +0x0b, -0x68, +0x45, -0x23, +0x42, -0x6b, +0x66, -0x33,
-            0x42U, 0x95U, 0x66U, 0xcdU,
+            -0x55, +0x77, +0x2b, -0x5f, -0x6b, -0x2e, +0x71, -0x11,
-            0xabU, 0x77U, 0x2bU, 0xa1U,
+            -0x02, +0x2d, +0x02, +0x11, -0x0f, +0x69, -0x6f, -0x29,
-            0x95U, 0xd2U, 0x71U, 0xefU,
+            +0x66, -0x46, +0x74, -0x6c, +0x47, -0x3b, -0x33, -0x1b,
-            0xfeU, 0x2dU, 0x02U, 0x11U,
+            +0x69, +0x78, +0x0b, +0x2d, -0x56, +0x66, -0x3c, -0x4e,
-            0xf1U, 0x69U, 0x91U, 0xd7U,
+            +0x24, -0x5e, -0x14, +0x2e, +0x5d, +0x09, +0x17, +0x4c,
-            0x66U, 0xbaU, 0x74U, 0x94U,
-            0x47U, 0xc5U, 0xcdU, 0xe5U,
-            0x69U, 0x78U, 0x0bU, 0x2dU,
-            0xaaU, 0x66U, 0xc4U, 0xb2U,
-            0x24U, 0xa2U, 0xecU, 0x2eU,
-            0x5dU, 0x09U, 0x17U, 0x4cU
-        )
-        val actual = function.hash(
-            UByteArray(144)
         )
+        val actual = function.hash(ByteArray(144))
         assertContentEquals(expected, actual)
     }
 }

src/commonTest/kotlin/com/infendro/hash/blake/Blake-512.kt

@@ -4,8 +4,8 @@ import kotlin.test.Test
 import kotlin.test.assertContentEquals
 import kotlin.test.assertEquals
 
-class `Blake-512 Test` {
+class `Blake-512_Test` {
-    val function = `Blake-512`
+    val function = `Blake-512`()
 
     @Test
     fun `bytes and block`() {
@@ -16,79 +16,49 @@ class `Blake-512 Test` {
 
     @Test
     fun `empty bytearray`() {
-        val expected = ubyteArrayOf(
+        val expected = byteArrayOf(
-            0xa8U, 0xcfU, 0xbbU, 0xd7U,
+            -0x58, -0x31, -0x45, -0x29, +0x37, +0x26, +0x06, +0x2d,
-            0x37U, 0x26U, 0x06U, 0x2dU,
+            -0x10, -0x3a, -0x7a, +0x4d, -0x26, +0x65, -0x22, -0x02,
-            0xf0U, 0xc6U, 0x86U, 0x4dU,
+            +0x58, -0x11, +0x0c, -0x3b, +0x2a, +0x56, +0x25, +0x09,
-            0xdaU, 0x65U, 0xdeU, 0xfeU,
+            +0x0f, -0x5f, +0x76, +0x01, -0x1f, -0x12, -0x33, +0x1b,
-            0x58U, 0xefU, 0x0cU, 0xc5U,
+            +0x62, -0x72, -0x6c, -0x0d, -0x6a, -0x52, +0x40, +0x2a,
-            0x2aU, 0x56U, 0x25U, 0x09U,
+            +0x00, -0x54, -0x37, -0x16, -0x49, +0x7b, +0x4d, +0x4c,
-            0x0fU, 0xa1U, 0x76U, 0x01U,
+            +0x2e, -0x7b, +0x2a, -0x56, -0x5e, +0x5a, +0x63, +0x6d,
-            0xe1U, 0xeeU, 0xcdU, 0x1bU,
+            -0x80, -0x51, +0x3f, -0x39, -0x6f, +0x3e, -0x0b, -0x48,
-            0x62U, 0x8eU, 0x94U, 0xf3U,
-            0x96U, 0xaeU, 0x40U, 0x2aU,
-            0x00U, 0xacU, 0xc9U, 0xeaU,
-            0xb7U, 0x7bU, 0x4dU, 0x4cU,
-            0x2eU, 0x85U, 0x2aU, 0xaaU,
-            0xa2U, 0x5aU, 0x63U, 0x6dU,
-            0x80U, 0xafU, 0x3fU, 0xc7U,
-            0x91U, 0x3eU, 0xf5U, 0xb8U,
-        )
-        val actual = function.hash(
-            UByteArray(0)
         )
+        val actual = function.hash(ByteArray(0))
         assertContentEquals(expected, actual)
     }
 
     @Test
     fun `one block`() {
-        val expected = ubyteArrayOf(
+        val expected = byteArrayOf(
-            0x97U, 0x96U, 0x15U, 0x87U,
+            -0x69, -0x6a, +0x15, -0x79, -0x0a, -0x27, +0x70, -0x06,
-            0xf6U, 0xd9U, 0x70U, 0xfaU,
+            -0x46, +0x6d, +0x24, +0x78, +0x04, +0x5d, -0x1a, -0x2f,
-            0xbaU, 0x6dU, 0x24U, 0x78U,
+            -0x06, -0x43, +0x09, -0x4a, +0x1a, -0x1b, +0x09, +0x32,
-            0x04U, 0x5dU, 0xe6U, 0xd1U,
+            +0x05, +0x4d, +0x52, -0x44, +0x29, -0x2d, +0x1b, -0x1c,
-            0xfaU, 0xbdU, 0x09U, 0xb6U,
+            -0x01, -0x6f, +0x02, -0x47, -0x0a, -0x62, +0x2b, -0x43,
-            0x1aU, 0xe5U, 0x09U, 0x32U,
+            -0x48, +0x3b, -0x1f, +0x3d, +0x4b, -0x64, +0x06, +0x09,
-            0x05U, 0x4dU, 0x52U, 0xbcU,
+            +0x1e, +0x5f, -0x60, -0x4c, -0x75, -0x30, -0x7f, -0x4a,
-            0x29U, 0xd3U, 0x1bU, 0xe4U,
+            +0x34, +0x05, -0x75, -0x20, -0x14, +0x49, -0x42, -0x4d,
-            0xffU, 0x91U, 0x02U, 0xb9U,
-            0xf6U, 0x9eU, 0x2bU, 0xbdU,
-            0xb8U, 0x3bU, 0xe1U, 0x3dU,
-            0x4bU, 0x9cU, 0x06U, 0x09U,
-            0x1eU, 0x5fU, 0xa0U, 0xb4U,
-            0x8bU, 0xd0U, 0x81U, 0xb6U,
-            0x34U, 0x05U, 0x8bU, 0xe0U,
-            0xecU, 0x49U, 0xbeU, 0xb3U,
-        )
-        val actual = function.hash(
-            UByteArray(1)
         )
+        val actual = function.hash(ByteArray(1))
         assertContentEquals(expected, actual)
     }
 
     @Test
     fun `two blocks`() {
-        val expected = ubyteArrayOf(
+        val expected = byteArrayOf(
-            0x31U, 0x37U, 0x17U, 0xd6U,
+            +0x31, +0x37, +0x17, -0x2a, +0x08, -0x17, -0x31, +0x75,
-            0x08U, 0xe9U, 0xcfU, 0x75U,
+            -0x73, -0x35, +0x1e, -0x50, -0x10, -0x3d, -0x31, -0x61,
-            0x8dU, 0xcbU, 0x1eU, 0xb0U,
+            -0x3f, +0x50, -0x4e, -0x2b, +0x00, -0x05, +0x33, -0x0b,
-            0xf0U, 0xc3U, 0xcfU, 0x9fU,
+            +0x1c, +0x52, -0x51, -0x37, -0x63, +0x35, -0x76, +0x2f,
-            0xc1U, 0x50U, 0xb2U, 0xd5U,
+            +0x13, +0x74, -0x48, -0x5d, -0x75, -0x46, +0x79, +0x74,
-            0x00U, 0xfbU, 0x33U, 0xf5U,
+            -0x19, -0x0a, -0x11, +0x79, -0x36, -0x4f, +0x6f, +0x22,
-            0x1cU, 0x52U, 0xafU, 0xc9U,
+            -0x32, +0x1e, +0x64, -0x63, +0x6e, +0x01, -0x53, -0x6b,
-            0x9dU, 0x35U, 0x8aU, 0x2fU,
+            -0x77, -0x3e, +0x13, +0x04, +0x5d, +0x54, +0x5d, -0x22,
-            0x13U, 0x74U, 0xb8U, 0xa3U,
-            0x8bU, 0xbaU, 0x79U, 0x74U,
-            0xe7U, 0xf6U, 0xefU, 0x79U,
-            0xcaU, 0xb1U, 0x6fU, 0x22U,
-            0xceU, 0x1eU, 0x64U, 0x9dU,
-            0x6eU, 0x01U, 0xadU, 0x95U,
-            0x89U, 0xc2U, 0x13U, 0x04U,
-            0x5dU, 0x54U, 0x5dU, 0xdeU,
-        )
-        val actual = function.hash(
-            UByteArray(144)
         )
+        val actual = function.hash(ByteArray(144))
         assertContentEquals(expected, actual)
     }
 }

src/commonTest/kotlin/com/infendro/hash/blake2/Blake2b-384.kt

@@ -0,0 +1,30 @@
+package com.infendro.hash.blake2
+
+import kotlin.test.Test
+import kotlin.test.assertContentEquals
+import kotlin.test.assertEquals
+
+class `Blake2b-384_Test` {
+    val function = Blake2b(48)
+
+    @Test
+    fun `bytes and block`() {
+        assertEquals(48, function.bytes)
+        assertEquals(384, function.bits)
+        assertEquals(128, function.block)
+    }
+
+    @Test
+    fun `empty bytearray`() {
+        val expected = byteArrayOf(
+            -0x4d, +0x28, +0x11, +0x42, +0x33, +0x77, -0x0b, +0x2d,
+            +0x78, +0x62, +0x28, +0x6e, -0x1f, -0x59, +0x2e, -0x1b,
+            +0x40, +0x52, +0x43, -0x80, -0x03, -0x5f, +0x72, +0x4a,
+            +0x6f, +0x25, -0x29, -0x69, -0x74, +0x6f, -0x2d, +0x24,
+            +0x4a, +0x6c, -0x51, +0x04, -0x68, -0x7f, +0x26, +0x73,
+            -0x3b, -0x20, +0x5e, -0x0b, -0x7d, -0x7e, +0x51, +0x00,
+        )
+        val actual = function.hash(ByteArray(0))
+        assertContentEquals(expected, actual)
+    }
+}

src/commonTest/kotlin/com/infendro/hash/blake2/Blake2b-512.kt

@@ -0,0 +1,32 @@
+package com.infendro.hash.blake2
+
+import kotlin.test.Test
+import kotlin.test.assertContentEquals
+import kotlin.test.assertEquals
+
+class `Blake2b-512_Test` {
+    val function = Blake2b(64)
+
+    @Test
+    fun `bytes and block`() {
+        assertEquals(64, function.bytes)
+        assertEquals(512, function.bits)
+        assertEquals(128, function.block)
+    }
+
+    @Test
+    fun `empty bytearray`() {
+        val expected = byteArrayOf(
+            +0x78, +0x6a, +0x02, -0x09, +0x42, +0x01, +0x59, +0x03,
+            -0x3a, -0x3a, -0x03, -0x7b, +0x25, +0x52, -0x2e, +0x72,
+            -0x6f, +0x2f, +0x47, +0x40, -0x1f, +0x58, +0x47, +0x61,
+            -0x76, -0x7a, -0x1e, +0x17, -0x09, +0x1f, +0x54, +0x19,
+            -0x2e, +0x5e, +0x10, +0x31, -0x51, -0x12, +0x58, +0x53,
+            +0x13, -0x77, +0x64, +0x44, -0x6d, +0x4e, -0x50, +0x4b,
+            -0x70, +0x3a, +0x68, +0x5b, +0x14, +0x48, -0x49, +0x55,
+            -0x2b, +0x6f, +0x70, +0x1a, -0x02, -0x65, -0x1e, -0x32,
+        )
+        val actual = function.hash(ByteArray(0))
+        assertContentEquals(expected, actual)
+    }
+}

src/commonTest/kotlin/com/infendro/hash/blake2/Blake2s-224.kt

@@ -0,0 +1,28 @@
+package com.infendro.hash.blake2
+
+import kotlin.test.Test
+import kotlin.test.assertContentEquals
+import kotlin.test.assertEquals
+
+class `Blake2s-224_Test` {
+    val function = Blake2s(28)
+
+    @Test
+    fun `bytes and block`() {
+        assertEquals(28, function.bytes)
+        assertEquals(224, function.bits)
+        assertEquals(64, function.block)
+    }
+
+    @Test
+    fun `empty bytearray`() {
+        val expected = byteArrayOf(
+            +0x1f, -0x5f, +0x29, +0x1e, +0x65, +0x24, -0x75, +0x37,
+            -0x4d, +0x43, +0x34, +0x75, -0x4e, -0x60, -0x23, +0x63,
+            -0x2b, +0x4a, +0x11, -0x14, -0x3c, -0x1d, -0x20, +0x34,
+            -0x19, -0x44, +0x1e, -0x0c,
+        )
+        val actual = function.hash(ByteArray(0))
+        assertContentEquals(expected, actual)
+    }
+}

src/commonTest/kotlin/com/infendro/hash/blake2/Blake2s-256.kt

@@ -0,0 +1,28 @@
+package com.infendro.hash.blake2
+
+import kotlin.test.Test
+import kotlin.test.assertContentEquals
+import kotlin.test.assertEquals
+
+class `Blake2s-256_Test` {
+    val function = Blake2s(32)
+
+    @Test
+    fun `bytes and block`() {
+        assertEquals(32, function.bytes)
+        assertEquals(256, function.bits)
+        assertEquals(64, function.block)
+    }
+
+    @Test
+    fun `empty bytearray`() {
+        val expected = byteArrayOf(
+            +0x69, +0x21, +0x7a, +0x30, +0x79, -0x70, -0x80, -0x6c,
+            -0x1f, +0x11, +0x21, -0x30, +0x42, +0x35, +0x4a, +0x7c,
+            +0x1f, +0x55, -0x4a, +0x48, +0x2c, -0x5f, -0x5b, +0x1e,
+            +0x1b, +0x25, +0x0d, -0x03, +0x1e, -0x30, -0x12, -0x07,
+        )
+        val actual = function.hash(ByteArray(0))
+        assertContentEquals(expected, actual)
+    }
+}

src/commonTest/kotlin/com/infendro/hash/keccak/sha3/SHA3-224.kt

@@ -4,8 +4,8 @@ import kotlin.test.Test
 import kotlin.test.assertContentEquals
 import kotlin.test.assertEquals
 
-class `SHA3-224 Test` {
+class `SHA3-224_Test` {
-    val function = `SHA3-224`
+    val function = `SHA3-224`()
 
     @Test
     fun `bytes and block`() {
@@ -16,18 +16,13 @@ class `SHA3-224 Test` {
 
     @Test
     fun `empty bytearray`() {
-        val expected = ubyteArrayOf(
+        val expected = byteArrayOf(
-            0x6bU, 0x4eU, 0x03U, 0x42U,
+            +0x6b, +0x4e, +0x03, +0x42, +0x36, +0x67, -0x25, -0x49,
-            0x36U, 0x67U, 0xdbU, 0xb7U,
+            +0x3b, +0x6e, +0x15, +0x45, +0x4f, +0x0e, -0x4f, -0x55,
-            0x3bU, 0x6eU, 0x15U, 0x45U,
+            -0x2c, +0x59, +0x7f, -0x66, +0x1b, +0x07, -0x72, +0x3f,
-            0x4fU, 0x0eU, 0xb1U, 0xabU,
+            +0x5b, +0x5a, +0x6b, -0x39,
-            0xd4U, 0x59U, 0x7fU, 0x9aU,
-            0x1bU, 0x07U, 0x8eU, 0x3fU,
-            0x5bU, 0x5aU, 0x6bU, 0xc7U,
-        )
-        val actual = function.hash(
-            ubyteArrayOf()
         )
+        val actual = function.hash(ByteArray(0))
         assertContentEquals(expected, actual)
     }
 }

src/commonTest/kotlin/com/infendro/hash/keccak/sha3/SHA3-256.kt

@@ -4,8 +4,8 @@ import kotlin.test.Test
 import kotlin.test.assertContentEquals
 import kotlin.test.assertEquals
 
-class `SHA3-256 Test` {
+class `SHA3-256_Test` {
-    val function = `SHA3-256`
+    val function = `SHA3-256`()
 
     @Test
     fun `bytes and block`() {
@@ -16,19 +16,13 @@ class `SHA3-256 Test` {
 
     @Test
     fun `empty bytearray`() {
-        val expected = ubyteArrayOf(
+        val expected = byteArrayOf(
-            0xa7U, 0xffU, 0xc6U, 0xf8U,
+            -0x59, -0x01, -0x3a, -0x08, -0x41, +0x1e, -0x29, +0x66,
-            0xbfU, 0x1eU, 0xd7U, 0x66U,
+            +0x51, -0x3f, +0x47, +0x56, -0x60, +0x61, -0x2a, +0x62,
-            0x51U, 0xc1U, 0x47U, 0x56U,
+            -0x0b, -0x80, -0x01, +0x4d, -0x1c, +0x3b, +0x49, -0x06,
-            0xa0U, 0x61U, 0xd6U, 0x62U,
+            -0x7e, -0x28, +0x0a, +0x4b, -0x80, -0x08, +0x43, +0x4a,
-            0xf5U, 0x80U, 0xffU, 0x4dU,
-            0xe4U, 0x3bU, 0x49U, 0xfaU,
-            0x82U, 0xd8U, 0x0aU, 0x4bU,
-            0x80U, 0xf8U, 0x43U, 0x4aU,
-        )
-        val actual = function.hash(
-            ubyteArrayOf()
         )
+        val actual = function.hash(ByteArray(0))
         assertContentEquals(expected, actual)
     }
 }

src/commonTest/kotlin/com/infendro/hash/keccak/sha3/SHA3-384.kt

@@ -4,8 +4,8 @@ import kotlin.test.Test
 import kotlin.test.assertContentEquals
 import kotlin.test.assertEquals
 
-class `SHA3-384 Test` {
+class `SHA3-384_Test` {
-    val function = `SHA3-384`
+    val function = `SHA3-384`()
 
     @Test
     fun `bytes and block`() {
@@ -16,23 +16,15 @@ class `SHA3-384 Test` {
 
     @Test
     fun `empty bytearray`() {
-        val expected = ubyteArrayOf(
+        val expected = byteArrayOf(
-            0x0cU, 0x63U, 0xa7U, 0x5bU,
+            +0x0c, +0x63, -0x59, +0x5b, -0x7c, +0x5e, +0x4f, +0x7d,
-            0x84U, 0x5eU, 0x4fU, 0x7dU,
+            +0x01, +0x10, +0x7d, -0x7b, +0x2e, +0x4c, +0x24, -0x7b,
-            0x01U, 0x10U, 0x7dU, 0x85U,
+            -0x3b, +0x1a, +0x50, -0x56, -0x56, -0x6c, -0x04, +0x61,
-            0x2eU, 0x4cU, 0x24U, 0x85U,
+            -0x67, +0x5e, +0x71, -0x45, -0x12, -0x68, +0x3a, +0x2a,
-            0xc5U, 0x1aU, 0x50U, 0xaaU,
+            -0x3d, +0x71, +0x38, +0x31, +0x26, +0x4a, -0x25, +0x47,
-            0xaaU, 0x94U, 0xfcU, 0x61U,
+            -0x05, +0x6b, -0x2f, -0x20, +0x58, -0x2b, -0x10, +0x04,
-            0x99U, 0x5eU, 0x71U, 0xbbU,
-            0xeeU, 0x98U, 0x3aU, 0x2aU,
-            0xc3U, 0x71U, 0x38U, 0x31U,
-            0x26U, 0x4aU, 0xdbU, 0x47U,
-            0xfbU, 0x6bU, 0xd1U, 0xe0U,
-            0x58U, 0xd5U, 0xf0U, 0x04U,
-        )
-        val actual = function.hash(
-            ubyteArrayOf()
         )
+        val actual = function.hash(ByteArray(0))
         assertContentEquals(expected, actual)
     }
 }

src/commonTest/kotlin/com/infendro/hash/keccak/sha3/SHA3-512.kt

@@ -4,8 +4,8 @@ import kotlin.test.Test
 import kotlin.test.assertContentEquals
 import kotlin.test.assertEquals
 
-class `SHA3-512 Test` {
+class `SHA3-512_Test` {
-    val function = `SHA3-512`
+    val function = `SHA3-512`()
 
     @Test
     fun `bytes and block`() {
@@ -16,27 +16,17 @@ class `SHA3-512 Test` {
 
     @Test
     fun `empty bytearray`() {
-        val expected = ubyteArrayOf(
+        val expected = byteArrayOf(
-            0xa6U, 0x9fU, 0x73U, 0xccU,
+            -0x5a, -0x61, +0x73, -0x34, -0x5e, +0x3a, -0x66, -0x3b,
-            0xa2U, 0x3aU, 0x9aU, 0xc5U,
+            -0x38, -0x4b, +0x67, -0x24, +0x18, +0x5a, +0x75, +0x6e,
-            0xc8U, 0xb5U, 0x67U, 0xdcU,
+            -0x69, -0x37, -0x7e, +0x16, +0x4f, -0x1e, +0x58, +0x59,
-            0x18U, 0x5aU, 0x75U, 0x6eU,
+            -0x20, -0x2f, -0x24, -0x3f, +0x47, +0x5c, -0x80, -0x5a,
-            0x97U, 0xc9U, 0x82U, 0x16U,
+            +0x15, -0x4e, +0x12, +0x3a, -0x0f, -0x0b, -0x07, +0x4c,
-            0x4fU, 0xe2U, 0x58U, 0x59U,
+            +0x11, -0x1d, -0x17, +0x40, +0x2c, +0x3a, -0x3b, +0x58,
-            0xe0U, 0xd1U, 0xdcU, 0xc1U,
+            -0x0b, +0x00, +0x19, -0x63, -0x6b, -0x4a, -0x2d, -0x1d,
-            0x47U, 0x5cU, 0x80U, 0xa6U,
+            +0x01, +0x75, -0x7b, -0x7a, +0x28, +0x1d, -0x33, +0x26,
-            0x15U, 0xb2U, 0x12U, 0x3aU,
-            0xf1U, 0xf5U, 0xf9U, 0x4cU,
-            0x11U, 0xe3U, 0xe9U, 0x40U,
-            0x2cU, 0x3aU, 0xc5U, 0x58U,
-            0xf5U, 0x00U, 0x19U, 0x9dU,
-            0x95U, 0xb6U, 0xd3U, 0xe3U,
-            0x01U, 0x75U, 0x85U, 0x86U,
-            0x28U, 0x1dU, 0xcdU, 0x26U,
-        )
-        val actual = function.hash(
-            ubyteArrayOf()
         )
+        val actual = function.hash(ByteArray(0))
         assertContentEquals(expected, actual)
     }
 }

src/commonTest/kotlin/com/infendro/hash/keccak/shake/SHAKE128.kt

@@ -4,7 +4,7 @@ import kotlin.test.Test
 import kotlin.test.assertContentEquals
 import kotlin.test.assertEquals
 
-class `SHAKE128 Test` {
+class SHAKE128_Test {
     val function = SHAKE128(32)
 
     @Test
@@ -16,19 +16,13 @@ class `SHAKE128 Test` {
 
     @Test
     fun `empty bytearray`() {
-        val expected = ubyteArrayOf(
+        val expected = byteArrayOf(
-            0x7fU, 0x9cU, 0x2bU, 0xa4U,
+            +0x7f, -0x64, +0x2b, -0x5c, -0x18, -0x71, -0x7e, +0x7d,
-            0xe8U, 0x8fU, 0x82U, 0x7dU,
+            +0x61, +0x60, +0x45, +0x50, +0x76, +0x05, -0x7b, +0x3e,
-            0x61U, 0x60U, 0x45U, 0x50U,
+            -0x29, +0x3b, -0x80, -0x6d, -0x0a, -0x11, -0x44, -0x78,
-            0x76U, 0x05U, 0x85U, 0x3eU,
+            -0x15, +0x1a, +0x6e, -0x54, -0x06, +0x66, -0x11, +0x26,
-            0xd7U, 0x3bU, 0x80U, 0x93U,
-            0xf6U, 0xefU, 0xbcU, 0x88U,
-            0xebU, 0x1aU, 0x6eU, 0xacU,
-            0xfaU, 0x66U, 0xefU, 0x26U,
-        )
-        val actual = function.hash(
-            ubyteArrayOf()
         )
+        val actual = function.hash(ByteArray(0))
         assertContentEquals(expected, actual)
     }
 }

src/commonTest/kotlin/com/infendro/hash/keccak/shake/SHAKE256.kt

@@ -4,7 +4,7 @@ import kotlin.test.Test
 import kotlin.test.assertContentEquals
 import kotlin.test.assertEquals
 
-class `SHAKE256 Test` {
+class SHAKE256_Test {
     val function = SHAKE256(64)
 
     @Test
@@ -16,27 +16,17 @@ class `SHAKE256 Test` {
 
     @Test
     fun `empty bytearray`() {
-        val expected = ubyteArrayOf(
+        val expected = byteArrayOf(
-            0x46U, 0xb9U, 0xddU, 0x2bU,
+            +0x46, -0x47, -0x23, +0x2b, +0x0b, -0x58, -0x73, +0x13,
-            0x0bU, 0xa8U, 0x8dU, 0x13U,
+            +0x23, +0x3b, +0x3f, -0x15, +0x74, +0x3e, -0x15, +0x24,
-            0x23U, 0x3bU, 0x3fU, 0xebU,
+            +0x3f, -0x33, +0x52, -0x16, +0x62, -0x48, +0x1b, -0x7e,
-            0x74U, 0x3eU, 0xebU, 0x24U,
+            -0x4b, +0x0c, +0x27, +0x64, +0x6e, -0x2b, +0x76, +0x2f,
-            0x3fU, 0xcdU, 0x52U, 0xeaU,
+            -0x29, +0x5d, -0x3c, -0x23, -0x28, -0x40, -0x0e, +0x00,
-            0x62U, 0xb8U, 0x1bU, 0x82U,
+            -0x35, +0x05, +0x01, -0x63, +0x67, -0x4b, -0x6e, -0x0a,
-            0xb5U, 0x0cU, 0x27U, 0x64U,
+            -0x04, -0x7e, +0x1c, +0x49, +0x47, -0x66, -0x4c, -0x7a,
-            0x6eU, 0xd5U, 0x76U, 0x2fU,
+            +0x40, +0x29, +0x2e, -0x54, -0x4d, -0x49, -0x3c, -0x42,
-            0xd7U, 0x5dU, 0xc4U, 0xddU,
-            0xd8U, 0xc0U, 0xf2U, 0x00U,
-            0xcbU, 0x05U, 0x01U, 0x9dU,
-            0x67U, 0xb5U, 0x92U, 0xf6U,
-            0xfcU, 0x82U, 0x1cU, 0x49U,
-            0x47U, 0x9aU, 0xb4U, 0x86U,
-            0x40U, 0x29U, 0x2eU, 0xacU,
-            0xb3U, 0xb7U, 0xc4U, 0xbeU,
-        )
-        val actual = function.hash(
-            ubyteArrayOf()
         )
+        val actual = function.hash(ByteArray(0))
         assertContentEquals(expected, actual)
     }
 }

src/commonTest/kotlin/com/infendro/hash/md/MD5.kt

@@ -4,8 +4,8 @@ import kotlin.test.Test
 import kotlin.test.assertContentEquals
 import kotlin.test.assertEquals
 
-class `MD5 Test` {
+class MD5_Test {
-    val function = MD5
+    val function = MD5()
 
     @Test
     fun `bytes and block`() {
@@ -16,15 +16,11 @@ class `MD5 Test` {
 
     @Test
     fun `empty bytearray`() {
-        val expected = ubyteArrayOf(
+        val expected = byteArrayOf(
-            0xd4U, 0x1dU, 0x8cU, 0xd9U,
+            -0x2c, +0x1d, -0x74, -0x27, -0x71, +0x00, -0x4e, +0x04,
-            0x8fU, 0x00U, 0xb2U, 0x04U,
+            -0x17, -0x80, +0x09, -0x68, -0x14, -0x08, +0x42, +0x7e,
-            0xe9U, 0x80U, 0x09U, 0x98U,
-            0xecU, 0xf8U, 0x42U, 0x7eU,
-        )
-        val actual = function.hash(
-            ubyteArrayOf()
         )
+        val actual = function.hash(ByteArray(0))
         assertContentEquals(expected, actual)
     }
 }

src/commonTest/kotlin/com/infendro/hash/sha1/SHA1.kt

@@ -4,8 +4,8 @@ import kotlin.test.Test
 import kotlin.test.assertContentEquals
 import kotlin.test.assertEquals
 
-class `SHA1 Test` {
+class SHA1_Test {
-    val function = SHA1
+    val function = SHA1()
 
     @Test
     fun `bytes and block`() {
@@ -16,16 +16,12 @@ class `SHA1 Test` {
 
     @Test
     fun `empty bytearray`() {
-        val expected = ubyteArrayOf(
+        val expected = byteArrayOf(
-            0xdaU, 0x39U, 0xa3U, 0xeeU,
+            -0x26, +0x39, -0x5d, -0x12, +0x5e, +0x6b, +0x4b, +0x0d,
-            0x5eU, 0x6bU, 0x4bU, 0x0dU,
+            +0x32, +0x55, -0x41, -0x11, -0x6b, +0x60, +0x18, -0x70,
-            0x32U, 0x55U, 0xbfU, 0xefU,
+            -0x51, -0x28, +0x07, +0x09,
-            0x95U, 0x60U, 0x18U, 0x90U,
-            0xafU, 0xd8U, 0x07U, 0x09U,
-        )
-        val actual = function.hash(
-            ubyteArrayOf()
         )
+        val actual = function.hash(ByteArray(0))
         assertContentEquals(expected, actual)
     }
 }

src/commonTest/kotlin/com/infendro/hash/sha2/SHA-224.kt

@@ -4,8 +4,8 @@ import kotlin.test.Test
 import kotlin.test.assertContentEquals
 import kotlin.test.assertEquals
 
-class `SHA-224 Test` {
+class `SHA-224_Test` {
-    val function = `SHA-224`
+    val function = `SHA-224`()
 
     @Test
     fun `bytes and block`() {
@@ -16,18 +16,13 @@ class `SHA-224 Test` {
 
     @Test
     fun `empty bytearray`() {
-        val expected = ubyteArrayOf(
+        val expected = byteArrayOf(
-            0xd1U, 0x4aU, 0x02U, 0x8cU,
+            -0x2f, +0x4a, +0x02, -0x74, +0x2a, +0x3a, +0x2b, -0x37,
-            0x2aU, 0x3aU, 0x2bU, 0xc9U,
+            +0x47, +0x61, +0x02, -0x45, +0x28, -0x7e, +0x34, -0x3c,
-            0x47U, 0x61U, 0x02U, 0xbbU,
+            +0x15, -0x5e, -0x50, +0x1f, -0x7e, -0x72, -0x5a, +0x2a,
-            0x28U, 0x82U, 0x34U, 0xc4U,
+            -0x3b, -0x4d, -0x1c, +0x2f,
-            0x15U, 0xa2U, 0xb0U, 0x1fU,
-            0x82U, 0x8eU, 0xa6U, 0x2aU,
-            0xc5U, 0xb3U, 0xe4U, 0x2fU,
-        )
-        val actual = function.hash(
-            ubyteArrayOf()
         )
+        val actual = function.hash(ByteArray(0))
         assertContentEquals(expected, actual)
     }
 }

src/commonTest/kotlin/com/infendro/hash/sha2/SHA-256.kt

@@ -4,8 +4,8 @@ import kotlin.test.Test
 import kotlin.test.assertContentEquals
 import kotlin.test.assertEquals
 
-class `SHA-256 Test` {
+class `SHA-256_Test` {
-    val function = `SHA-256`
+    val function = `SHA-256`()
 
     @Test
     fun `bytes and block`() {
@@ -16,19 +16,13 @@ class `SHA-256 Test` {
 
     @Test
     fun `empty bytearray`() {
-        val expected = ubyteArrayOf(
+        val expected = byteArrayOf(
-            0xe3U, 0xb0U, 0xc4U, 0x42U,
+            -0x1d, -0x50, -0x3c, +0x42, -0x68, -0x04, +0x1c, +0x14,
-            0x98U, 0xfcU, 0x1cU, 0x14U,
+            -0x66, -0x05, -0x0c, -0x38, -0x67, +0x6f, -0x47, +0x24,
-            0x9aU, 0xfbU, 0xf4U, 0xc8U,
+            +0x27, -0x52, +0x41, -0x1c, +0x64, -0x65, -0x6d, +0x4c,
-            0x99U, 0x6fU, 0xb9U, 0x24U,
+            -0x5c, -0x6b, -0x67, +0x1b, +0x78, +0x52, -0x48, +0x55,
-            0x27U, 0xaeU, 0x41U, 0xe4U,
-            0x64U, 0x9bU, 0x93U, 0x4cU,
-            0xa4U, 0x95U, 0x99U, 0x1bU,
-            0x78U, 0x52U, 0xb8U, 0x55U,
-        )
-        val actual = function.hash(
-            ubyteArrayOf()
         )
+        val actual = function.hash(ByteArray(0))
         assertContentEquals(expected, actual)
     }
 }

src/commonTest/kotlin/com/infendro/hash/sha2/SHA-384.kt

@@ -4,8 +4,8 @@ import kotlin.test.Test
 import kotlin.test.assertContentEquals
 import kotlin.test.assertEquals
 
-class `SHA-384 Test` {
+class `SHA-384_Test` {
-    val function = `SHA-384`
+    val function = `SHA-384`()
 
     @Test
     fun `bytes and block`() {
@@ -16,23 +16,15 @@ class `SHA-384 Test` {
 
     @Test
     fun `empty bytearray`() {
-        val expected = ubyteArrayOf(
+        val expected = byteArrayOf(
-            0x38U, 0xb0U, 0x60U, 0xa7U,
+            +0x38, -0x50, +0x60, -0x59, +0x51, -0x54, -0x6a, +0x38,
-            0x51U, 0xacU, 0x96U, 0x38U,
+            +0x4c, -0x27, +0x32, +0x7e, -0x4f, -0x4f, -0x1d, +0x6a,
-            0x4cU, 0xd9U, 0x32U, 0x7eU,
+            +0x21, -0x03, -0x49, +0x11, +0x14, -0x42, +0x07, +0x43,
-            0xb1U, 0xb1U, 0xe3U, 0x6aU,
+            +0x4c, +0x0c, -0x39, -0x41, +0x63, -0x0a, -0x1f, -0x26,
-            0x21U, 0xfdU, 0xb7U, 0x11U,
+            +0x27, +0x4e, -0x22, -0x41, -0x19, +0x6f, +0x65, -0x05,
-            0x14U, 0xbeU, 0x07U, 0x43U,
+            -0x2b, +0x1a, -0x2e, -0x0f, +0x48, -0x68, -0x47, +0x5b,
-            0x4cU, 0x0cU, 0xc7U, 0xbfU,
-            0x63U, 0xf6U, 0xe1U, 0xdaU,
-            0x27U, 0x4eU, 0xdeU, 0xbfU,
-            0xe7U, 0x6fU, 0x65U, 0xfbU,
-            0xd5U, 0x1aU, 0xd2U, 0xf1U,
-            0x48U, 0x98U, 0xb9U, 0x5bU,
-        )
-        val actual = function.hash(
-            ubyteArrayOf()
         )
+        val actual = function.hash(ByteArray(0))
         assertContentEquals(expected, actual)
     }
 }

src/commonTest/kotlin/com/infendro/hash/sha2/SHA-512.kt

@@ -4,8 +4,8 @@ import kotlin.test.Test
 import kotlin.test.assertContentEquals
 import kotlin.test.assertEquals
 
-class `SHA-512 Test` {
+class `SHA-512_Test` {
-    val function = `SHA-512`
+    val function = `SHA-512`()
 
     @Test
     fun `bytes and block`() {
@@ -16,27 +16,17 @@ class `SHA-512 Test` {
 
     @Test
     fun `empty bytearray`() {
-        val expected = ubyteArrayOf(
+        val expected = byteArrayOf(
-            0xcfU, 0x83U, 0xe1U, 0x35U,
+            -0x31, -0x7d, -0x1f, +0x35, +0x7e, -0x11, -0x48, -0x43,
-            0x7eU, 0xefU, 0xb8U, 0xbdU,
+            -0x0f, +0x54, +0x28, +0x50, -0x2a, +0x6d, -0x80, +0x07,
-            0xf1U, 0x54U, 0x28U, 0x50U,
+            -0x2a, +0x20, -0x1c, +0x05, +0x0b, +0x57, +0x15, -0x24,
-            0xd6U, 0x6dU, 0x80U, 0x07U,
+            -0x7d, -0x0c, -0x57, +0x21, -0x2d, +0x6c, -0x17, -0x32,
-            0xd6U, 0x20U, 0xe4U, 0x05U,
+            +0x47, -0x30, -0x2f, +0x3c, +0x5d, -0x7b, -0x0e, -0x50,
-            0x0bU, 0x57U, 0x15U, 0xdcU,
+            -0x01, -0x7d, +0x18, -0x2e, -0x79, +0x7e, -0x14, +0x2f,
-            0x83U, 0xf4U, 0xa9U, 0x21U,
+            +0x63, -0x47, +0x31, -0x43, +0x47, +0x41, +0x7a, -0x7f,
-            0xd3U, 0x6cU, 0xe9U, 0xceU,
+            -0x5b, +0x38, +0x32, +0x7a, -0x07, +0x27, -0x26, +0x3e,
-            0x47U, 0xd0U, 0xd1U, 0x3cU,
-            0x5dU, 0x85U, 0xf2U, 0xb0U,
-            0xffU, 0x83U, 0x18U, 0xd2U,
-            0x87U, 0x7eU, 0xecU, 0x2fU,
-            0x63U, 0xb9U, 0x31U, 0xbdU,
-            0x47U, 0x41U, 0x7aU, 0x81U,
-            0xa5U, 0x38U, 0x32U, 0x7aU,
-            0xf9U, 0x27U, 0xdaU, 0x3eU,
-        )
-        val actual = function.hash(
-            ubyteArrayOf()
         )
+        val actual = function.hash(ByteArray(0))
         assertContentEquals(expected, actual)
     }
 }