# Kotlin KDF

This library provides various [Key Derivation Function](https://en.wikipedia.org/wiki/Key_derivation_function)
implementations in Kotlin Multiplatform.

## Features

* [PBKDF2](https://en.wikipedia.org/wiki/PBKDF2)
* Multiplatform support
    * JVM
    * JavaScript
    * Native (Linux)

## Installation

Add the following to your `build.gradle.kts`.

```kotlin
repositories {
    maven("https://git.infendro.com/api/packages/Infendro/maven")
}

dependencies {
    implementation("com.infendro:kdf:1.0.3")
}
```

## Usage

```kotlin
import com.infendro.hash.SHA256
import com.infendro.kdf.PBKDF2

fun main() {
    // create a PBKDF2 instance using HMAC SHA256
    val kdf = PBKDF2(SHA256)

    // securely hash value with some salt
    //   this example uses 100_000 iterations and 32 bytes of length
    val value = "password".encodeToByteArray()
    val salt = "...".encodeToByteArray()
    val hash = kdf.hash(value, salt, 100_000, 32)
}
```