1 // Copyright 2014 The go-ethereum Authors
2 // This file is part of the go-ethereum library.
4 // The go-ethereum library is free software: you can redistribute it and/or modify
5 // it under the terms of the GNU Lesser General Public License as published by
6 // the Free Software Foundation, either version 3 of the License, or
7 // (at your option) any later version.
9 // The go-ethereum library is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU Lesser General Public License for more details.
14 // You should have received a copy of the GNU Lesser General Public License
15 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
20 "github.com/bytom/common"
21 "golang.org/x/crypto/ripemd160"
22 "golang.org/x/crypto/sha3"
25 func Sha256(data ...[]byte) []byte {
27 for _, b := range data {
33 func Sha256Hash(data ...[]byte) (h common.Hash) {
35 for _, b := range data {
42 func Sha3(data ...[]byte) []byte { return Sha256(data...) }
43 func Sha3Hash(data ...[]byte) common.Hash { return Sha256Hash(data...) }
45 func Ripemd160(data []byte) []byte {
46 ripemd := ripemd160.New()
49 return ripemd.Sum(nil)
53 func zeroBytes(bytes []byte) {
54 for i := range bytes {
59 func toInt(bytes []byte) []int {
60 ints := make([]int, len(bytes))
61 for i := range bytes {
62 ints[i] = int(bytes[i])
67 func toBytes(ints []int) []byte {
68 bytes := make([]byte, len(ints))
70 bytes[i] = byte(ints[i])