op-geth/ethcrypto/crypto.go

36 lines
618 B
Go

package ethcrypto
import (
"code.google.com/p/go.crypto/ripemd160"
"crypto/sha256"
"github.com/obscuren/sha3"
"math/big"
)
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:]
}