blake2

// Using CryptoRand from KotlinCrypto/random repo as an example
import org.kotlincrypto.random.CryptoRand
// ...

fun main() {
    val key64 = CryptoRand.Default.nextBytes(ByteArray(64))
    val key32 = CryptoRand.Default.nextBytes(ByteArray(32))

    BLAKE2b(key64, 512)
    BLAKE2s(key32, 256)
}