ECRECOVER RIPEMD160 SHA256

This commit is contained in:
obscuren 2014-10-08 12:00:50 +02:00
parent 6de726f16c
commit 11ace54307

View File

@ -2,10 +2,16 @@ package ethcrypto
import ( import (
//"code.google.com/p/go.crypto/sha3" //"code.google.com/p/go.crypto/sha3"
"crypto/sha256"
"code.google.com/p/go.crypto/ripemd160"
"github.com/ethereum/eth-go/ethutil" "github.com/ethereum/eth-go/ethutil"
"github.com/obscuren/sha3" "github.com/obscuren/sha3"
"github.com/obscuren/secp256k1-go"
) )
// TODO refactor, remove (bin)
func Sha3Bin(data []byte) []byte { func Sha3Bin(data []byte) []byte {
d := sha3.NewKeccak256() d := sha3.NewKeccak256()
d.Write(data) d.Write(data)
@ -17,3 +23,27 @@ func Sha3Bin(data []byte) []byte {
func CreateAddress(b []byte, nonce uint64) []byte { func CreateAddress(b []byte, nonce uint64) []byte {
return Sha3Bin(ethutil.NewValue([]interface{}{b, nonce}).Encode())[12:] return Sha3Bin(ethutil.NewValue([]interface{}{b, nonce}).Encode())[12:]
} }
func Sha256(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 Ecrecover(data []byte) []byte {
var in = struct {
hash []byte
sig []byte
}{data[:32], data[32:]}
r, _ := secp256k1.RecoverPubkey(in.hash, in.sig)
return r
}