forked from cerc-io/plugeth
48 lines
878 B
Go
48 lines
878 B
Go
package ethcrypto
|
|
|
|
import (
|
|
"crypto/sha256"
|
|
|
|
"code.google.com/p/go.crypto/ripemd160"
|
|
"github.com/ethereum/go-ethereum/ethutil"
|
|
"github.com/obscuren/secp256k1-go"
|
|
"github.com/obscuren/sha3"
|
|
)
|
|
|
|
// TODO refactor, remove (bin)
|
|
func Sha3(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 uint64) []byte {
|
|
return Sha3(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
|
|
}
|