Infendro/hash.kt
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refactor hash functions

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Infendro
2025-12-01 19:13:58 +01:00
parent 10ba03dedc
commit 8a2848e6e3
7 changed files with 341 additions and 392 deletions
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145
src/commonMain/kotlin/com/infendro/hash/sha2/SHA-512.kt
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@@ -11,105 +11,96 @@ object `SHA-512` : HashFunction() {
override val block: Int
get() = 128
private val k = 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,
private val initial = ulongArrayOf(
0x6a09e667f3bcc908UL, 0xbb67ae8584caa73bUL,
0x3c6ef372fe94f82bUL, 0xa54ff53a5f1d36f1UL,
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 {
var h0 = 0x6a09e667f3bcc908UL
var h1 = 0xbb67ae8584caa73bUL
var h2 = 0x3c6ef372fe94f82bUL
var h3 = 0xa54ff53a5f1d36f1UL
var h4 = 0x510e527fade682d1UL
var h5 = 0x9b05688c2b3e6c1fUL
var h6 = 0x1f83d9abfb41bd6bUL
var h7 = 0x5be0cd19137e2179UL
val ml = value.size.toULong() * 8UL
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(ml.toUByteArray())
addAll(l.toUByteArray())
}
val chunks = paddedValue
// process
val blocks = paddedValue
.chunked(128) { it.toUByteArray() }
for (chunk in chunks) {
for (block in blocks) {
val w = buildList {
addAll(chunk.toULongArray())
addAll(block.toULongArray())
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 s1 = get(i - 2).rotateRight(19) xor get(i - 2).rotateRight(61) xor (get(i - 2) shr 6)
add(get(i - 16) + s0 + get(i - 7) + s1)
}
}
var a = h0
var b = h1
var c = h2
var d = h3
var e = h4
var f = h5
var g = h6
var h = h7
for (i in 0..<80) {
val s0 = a.rotateRight(28) xor a.rotateRight(34) xor a.rotateRight(39)
val s1 = e.rotateRight(14) xor e.rotateRight(18) xor e.rotateRight(41)
val ch = (e and f) xor (e.inv() and g)
val temp1 = h + s1 + ch + k[i] + w[i]
val maj = (a and b) xor (a and c) xor (b and c)
val temp2 = s0 + maj
h = g
g = f
f = e
e = d + temp1
d = c
c = b
b = a
a = temp1 + temp2
}
h0 += a
h1 += b
h2 += c
h3 += d
h4 += e
h5 += f
h6 += g
h7 += h
}.toULongArray()
process(h, w)
}
return ubyteArrayOf(
*h0.toUByteArray(),
*h1.toUByteArray(),
*h2.toUByteArray(),
*h3.toUByteArray(),
*h4.toUByteArray(),
*h5.toUByteArray(),
*h6.toUByteArray(),
*h7.toUByteArray(),
)
return h.toUByteArray()
}
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 maj = (v[0] and v[1]) xor (v[0] and v[2]) xor (v[1] and v[2])
val temp2 = s0 + maj
v[7] = v[6]
v[6] = v[5]
v[5] = v[4]
v[4] = v[3] + temp1
v[3] = v[2]
v[2] = v[1]
v[1] = v[0]
v[0] = temp1 + temp2
}
for (i in 0..7) {
h[i] += v[i]
}
}
}