421 lines
10 KiB
Go
421 lines
10 KiB
Go
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package hashx
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import (
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"crypto/md5"
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"crypto/sha1"
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"crypto/sha256"
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"crypto/sha512"
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"encoding/binary"
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"encoding/hex"
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"errors"
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"hash"
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"hash/crc32"
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"io"
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"os"
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gmsm3 "github.com/emmansun/gmsm/sm3"
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"golang.org/x/crypto/md4"
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"golang.org/x/crypto/ripemd160"
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)
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var (
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// ErrUnsupportedMethod reports an unknown hash method string.
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ErrUnsupportedMethod = errors.New("unsupported hash method")
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)
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func HexString(b []byte) string {
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return hex.EncodeToString(b)
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}
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func Md5(b []byte) []byte {
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sum := md5.New()
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_, _ = sum.Write(b)
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return sum.Sum(nil)
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}
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func Md5Str(b []byte) string {
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return HexString(Md5(b))
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}
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func Md4(b []byte) []byte {
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sum := md4.New()
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_, _ = sum.Write(b)
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return sum.Sum(nil)
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}
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func Md4Str(b []byte) string {
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return HexString(Md4(b))
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}
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func Sha512(b []byte) []byte {
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sum := sha512.New()
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_, _ = sum.Write(b)
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return sum.Sum(nil)
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}
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func Sha512Str(b []byte) string {
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return HexString(Sha512(b))
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}
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func Sha384(b []byte) []byte {
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sum := sha512.New384()
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_, _ = sum.Write(b)
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return sum.Sum(nil)
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}
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func Sha384Str(b []byte) string {
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return HexString(Sha384(b))
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}
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func Sha256(b []byte) []byte {
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sum := sha256.New()
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_, _ = sum.Write(b)
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return sum.Sum(nil)
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}
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func Sha256Str(b []byte) string {
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return HexString(Sha256(b))
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}
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func Sha224(b []byte) []byte {
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sum := sha256.New224()
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_, _ = sum.Write(b)
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return sum.Sum(nil)
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}
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func Sha224Str(b []byte) string {
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return HexString(Sha224(b))
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}
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func Sha1(b []byte) []byte {
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sum := sha1.New()
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_, _ = sum.Write(b)
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return sum.Sum(nil)
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}
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func Sha1Str(b []byte) string {
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return HexString(Sha1(b))
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}
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func RipeMd160(b []byte) []byte {
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sum := ripemd160.New()
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_, _ = sum.Write(b)
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return sum.Sum(nil)
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}
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func RipeMd160Str(b []byte) string {
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return HexString(RipeMd160(b))
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}
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func SM3(b []byte) []byte {
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sum := gmsm3.New()
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_, _ = sum.Write(b)
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return sum.Sum(nil)
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}
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func SM3Str(b []byte) string {
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return HexString(SM3(b))
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}
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// CheckCRC32A returns CRC32A as uint32 in big-endian view.
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// CRC32A here is an MSB-first, non-reflected variant and is different
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// from Go standard library CRC-32/IEEE.
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func CheckCRC32A(data []byte) uint32 {
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b := crc32aDigest(data)
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return binary.BigEndian.Uint32(b)
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}
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func Crc32Str(b []byte) string {
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return HexString(Crc32(b))
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}
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func Crc32(b []byte) []byte {
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sum := crc32.NewIEEE()
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_, _ = sum.Write(b)
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return sum.Sum(nil)
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}
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// Crc32A computes CRC32A (MSB-first, non-reflected), which is not the
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// same route as Go standard library CRC-32/IEEE.
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func Crc32A(data []byte) []byte {
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return crc32aDigest(data)
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}
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// Crc32AStr returns hex string of Crc32A digest.
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func Crc32AStr(data []byte) string {
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return hex.EncodeToString(crc32aDigest(data))
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}
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func SumAll(data []byte, methods []string) (map[string][]byte, error) {
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if len(methods) == 0 {
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methods = []string{"sha512", "sha256", "sha384", "sha224", "sha1", "crc32", "md5"}
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}
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result := make(map[string][]byte, len(methods))
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hashers := make(map[string]hash.Hash, len(methods))
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var crc hash.Hash32
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for _, method := range methods {
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switch method {
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case "md5":
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hashers[method] = md5.New()
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case "sha1":
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hashers[method] = sha1.New()
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case "sha224":
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hashers[method] = sha256.New224()
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case "sha256":
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hashers[method] = sha256.New()
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case "sha384":
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hashers[method] = sha512.New384()
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case "sha512":
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hashers[method] = sha512.New()
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case "crc32":
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if crc == nil {
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crc = crc32.NewIEEE()
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}
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default:
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// Keep compatibility with previous behavior: unknown methods are ignored.
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}
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}
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for _, h := range hashers {
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_, _ = h.Write(data)
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}
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if crc != nil {
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_, _ = crc.Write(data)
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}
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for method, h := range hashers {
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result[method] = h.Sum(nil)
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}
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if crc != nil {
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result["crc32"] = crc.Sum(nil)
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}
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return result, nil
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}
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func FileSum(filePath, method string, progress func(float64)) (string, error) {
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fp, err := os.Open(filePath)
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if err != nil {
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return "", err
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}
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defer fp.Close()
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stat, err := fp.Stat()
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if err != nil {
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return "", err
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}
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var (
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h hash.Hash
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h32 hash.Hash32
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is32 bool
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total int64
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size = stat.Size()
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)
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switch method {
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case "sha512":
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h = sha512.New()
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case "sha384":
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h = sha512.New384()
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case "sha256":
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h = sha256.New()
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case "sha224":
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h = sha256.New224()
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case "sha1":
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h = sha1.New()
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case "md5":
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h = md5.New()
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case "crc32":
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h32 = crc32.NewIEEE()
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is32 = true
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default:
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return "", errors.New(ErrUnsupportedMethod.Error() + ": " + method)
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}
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buf := make([]byte, 1024*1024)
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for {
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n, readErr := fp.Read(buf)
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if n > 0 {
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total += int64(n)
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if is32 {
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_, _ = h32.Write(buf[:n])
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} else {
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_, _ = h.Write(buf[:n])
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}
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reportProgress(progress, total, size)
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}
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if readErr != nil {
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if readErr == io.EOF {
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break
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}
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return "", readErr
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}
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}
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if is32 {
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return hex.EncodeToString(h32.Sum(nil)), nil
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}
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return hex.EncodeToString(h.Sum(nil)), nil
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}
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func FileSumAll(filePath string, methods []string, progress func(float64)) (map[string]string, error) {
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if len(methods) == 0 {
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methods = []string{"sha512", "sha256", "sha384", "sha224", "sha1", "crc32", "md5"}
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}
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fp, err := os.Open(filePath)
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if err != nil {
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return nil, err
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}
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defer fp.Close()
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stat, err := fp.Stat()
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if err != nil {
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return nil, err
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}
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hashers := make(map[string]hash.Hash, len(methods))
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var crc hash.Hash32
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for _, method := range methods {
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switch method {
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case "md5":
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hashers[method] = md5.New()
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case "sha1":
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hashers[method] = sha1.New()
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case "sha224":
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hashers[method] = sha256.New224()
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case "sha256":
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hashers[method] = sha256.New()
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case "sha384":
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hashers[method] = sha512.New384()
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case "sha512":
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hashers[method] = sha512.New()
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case "crc32":
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if crc == nil {
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crc = crc32.NewIEEE()
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}
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default:
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// Keep compatibility with previous behavior: unknown methods are ignored.
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}
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}
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var total int64
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size := stat.Size()
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buf := make([]byte, 1024*1024)
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for {
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n, readErr := fp.Read(buf)
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if n > 0 {
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total += int64(n)
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chunk := buf[:n]
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for _, h := range hashers {
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_, _ = h.Write(chunk)
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}
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if crc != nil {
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_, _ = crc.Write(chunk)
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}
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reportProgress(progress, total, size)
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}
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if readErr != nil {
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if readErr == io.EOF {
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break
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}
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return nil, readErr
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}
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}
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result := make(map[string]string, len(hashers)+1)
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for method, h := range hashers {
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result[method] = hex.EncodeToString(h.Sum(nil))
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}
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if crc != nil {
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result["crc32"] = hex.EncodeToString(crc.Sum(nil))
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}
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return result, nil
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}
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func reportProgress(progress func(float64), current, total int64) {
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if progress == nil {
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return
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}
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if total <= 0 {
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progress(100)
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return
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}
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progress(float64(current) / float64(total) * 100)
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}
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func crc32aDigest(data []byte) []byte {
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var crc uint32
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digest := make([]byte, 4)
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crc = ^crc
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for i := 0; i < len(data); i++ {
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crc = (crc << 8) ^ crc32aTable[(crc>>24)^(uint32(data[i])&0xff)]
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}
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crc = ^crc
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digest[3] = byte((crc >> 24) & 0xff)
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digest[2] = byte((crc >> 16) & 0xff)
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digest[1] = byte((crc >> 8) & 0xff)
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digest[0] = byte(crc & 0xff)
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return digest
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}
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var crc32aTable = [256]uint32{
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0x0,
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0x04c11db7, 0x09823b6e, 0x0d4326d9, 0x130476dc, 0x17c56b6b,
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0x1a864db2, 0x1e475005, 0x2608edb8, 0x22c9f00f, 0x2f8ad6d6,
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0x2b4bcb61, 0x350c9b64, 0x31cd86d3, 0x3c8ea00a, 0x384fbdbd,
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0x4c11db70, 0x48d0c6c7, 0x4593e01e, 0x4152fda9, 0x5f15adac,
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0x5bd4b01b, 0x569796c2, 0x52568b75, 0x6a1936c8, 0x6ed82b7f,
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0x639b0da6, 0x675a1011, 0x791d4014, 0x7ddc5da3, 0x709f7b7a,
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0x745e66cd, 0x9823b6e0, 0x9ce2ab57, 0x91a18d8e, 0x95609039,
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0x8b27c03c, 0x8fe6dd8b, 0x82a5fb52, 0x8664e6e5, 0xbe2b5b58,
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0xbaea46ef, 0xb7a96036, 0xb3687d81, 0xad2f2d84, 0xa9ee3033,
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0xa4ad16ea, 0xa06c0b5d, 0xd4326d90, 0xd0f37027, 0xddb056fe,
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0xd9714b49, 0xc7361b4c, 0xc3f706fb, 0xceb42022, 0xca753d95,
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0xf23a8028, 0xf6fb9d9f, 0xfbb8bb46, 0xff79a6f1, 0xe13ef6f4,
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0xe5ffeb43, 0xe8bccd9a, 0xec7dd02d, 0x34867077, 0x30476dc0,
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0x3d044b19, 0x39c556ae, 0x278206ab, 0x23431b1c, 0x2e003dc5,
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0x2ac12072, 0x128e9dcf, 0x164f8078, 0x1b0ca6a1, 0x1fcdbb16,
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||
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|
0x018aeb13, 0x054bf6a4, 0x0808d07d, 0x0cc9cdca, 0x7897ab07,
|
||
|
|
0x7c56b6b0, 0x71159069, 0x75d48dde, 0x6b93dddb, 0x6f52c06c,
|
||
|
|
0x6211e6b5, 0x66d0fb02, 0x5e9f46bf, 0x5a5e5b08, 0x571d7dd1,
|
||
|
|
0x53dc6066, 0x4d9b3063, 0x495a2dd4, 0x44190b0d, 0x40d816ba,
|
||
|
|
0xaca5c697, 0xa864db20, 0xa527fdf9, 0xa1e6e04e, 0xbfa1b04b,
|
||
|
|
0xbb60adfc, 0xb6238b25, 0xb2e29692, 0x8aad2b2f, 0x8e6c3698,
|
||
|
|
0x832f1041, 0x87ee0df6, 0x99a95df3, 0x9d684044, 0x902b669d,
|
||
|
|
0x94ea7b2a, 0xe0b41de7, 0xe4750050, 0xe9362689, 0xedf73b3e,
|
||
|
|
0xf3b06b3b, 0xf771768c, 0xfa325055, 0xfef34de2, 0xc6bcf05f,
|
||
|
|
0xc27dede8, 0xcf3ecb31, 0xcbffd686, 0xd5b88683, 0xd1799b34,
|
||
|
|
0xdc3abded, 0xd8fba05a, 0x690ce0ee, 0x6dcdfd59, 0x608edb80,
|
||
|
|
0x644fc637, 0x7a089632, 0x7ec98b85, 0x738aad5c, 0x774bb0eb,
|
||
|
|
0x4f040d56, 0x4bc510e1, 0x46863638, 0x42472b8f, 0x5c007b8a,
|
||
|
|
0x58c1663d, 0x558240e4, 0x51435d53, 0x251d3b9e, 0x21dc2629,
|
||
|
|
0x2c9f00f0, 0x285e1d47, 0x36194d42, 0x32d850f5, 0x3f9b762c,
|
||
|
|
0x3b5a6b9b, 0x0315d626, 0x07d4cb91, 0x0a97ed48, 0x0e56f0ff,
|
||
|
|
0x1011a0fa, 0x14d0bd4d, 0x19939b94, 0x1d528623, 0xf12f560e,
|
||
|
|
0xf5ee4bb9, 0xf8ad6d60, 0xfc6c70d7, 0xe22b20d2, 0xe6ea3d65,
|
||
|
|
0xeba91bbc, 0xef68060b, 0xd727bbb6, 0xd3e6a601, 0xdea580d8,
|
||
|
|
0xda649d6f, 0xc423cd6a, 0xc0e2d0dd, 0xcda1f604, 0xc960ebb3,
|
||
|
|
0xbd3e8d7e, 0xb9ff90c9, 0xb4bcb610, 0xb07daba7, 0xae3afba2,
|
||
|
|
0xaafbe615, 0xa7b8c0cc, 0xa379dd7b, 0x9b3660c6, 0x9ff77d71,
|
||
|
|
0x92b45ba8, 0x9675461f, 0x8832161a, 0x8cf30bad, 0x81b02d74,
|
||
|
|
0x857130c3, 0x5d8a9099, 0x594b8d2e, 0x5408abf7, 0x50c9b640,
|
||
|
|
0x4e8ee645, 0x4a4ffbf2, 0x470cdd2b, 0x43cdc09c, 0x7b827d21,
|
||
|
|
0x7f436096, 0x7200464f, 0x76c15bf8, 0x68860bfd, 0x6c47164a,
|
||
|
|
0x61043093, 0x65c52d24, 0x119b4be9, 0x155a565e, 0x18197087,
|
||
|
|
0x1cd86d30, 0x029f3d35, 0x065e2082, 0x0b1d065b, 0x0fdc1bec,
|
||
|
|
0x3793a651, 0x3352bbe6, 0x3e119d3f, 0x3ad08088, 0x2497d08d,
|
||
|
|
0x2056cd3a, 0x2d15ebe3, 0x29d4f654, 0xc5a92679, 0xc1683bce,
|
||
|
|
0xcc2b1d17, 0xc8ea00a0, 0xd6ad50a5, 0xd26c4d12, 0xdf2f6bcb,
|
||
|
|
0xdbee767c, 0xe3a1cbc1, 0xe760d676, 0xea23f0af, 0xeee2ed18,
|
||
|
|
0xf0a5bd1d, 0xf464a0aa, 0xf9278673, 0xfde69bc4, 0x89b8fd09,
|
||
|
|
0x8d79e0be, 0x803ac667, 0x84fbdbd0, 0x9abc8bd5, 0x9e7d9662,
|
||
|
|
0x933eb0bb, 0x97ffad0c, 0xafb010b1, 0xab710d06, 0xa6322bdf,
|
||
|
|
0xa2f33668, 0xbcb4666d, 0xb8757bda, 0xb5365d03, 0xb1f740b4,
|
||
|
|
}
|