ethcrypto/crypto.go


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package ethcrypto

import (
    "code.google.com/p/go.crypto/ripemd160"
    "crypto/sha256"
    "github.com/obscuren/sha3"
)

func Sha256Bin(data []byte) []byte {
    hash := sha256.Sum256(data)

    return hash[:]
}

func Ripemd160(data []byte) []byte {
    ripemd := ripemd160.New()
    ripemd.Write(data)

    return ripemd.Sum(nil)
}

func Sha3Bin(data []byte) []byte {
    d := sha3.NewKeccak256()
    d.Write(data)

    return d.Sum(nil)
}

// Creates an ethereum address given the bytes and the nonce
func CreateAddress(b []byte, nonce *big.Int) []byte {
    addrBytes := append(b, nonce.Bytes()...)

    return Sha3Bin(addrBytes)[12:]
}