diff options
Diffstat (limited to 'libgo/go/crypto/sha256/sha256.go')
| -rw-r--r-- | libgo/go/crypto/sha256/sha256.go | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/libgo/go/crypto/sha256/sha256.go b/libgo/go/crypto/sha256/sha256.go index 14b8cfc7eca..34861f6cf49 100644 --- a/libgo/go/crypto/sha256/sha256.go +++ b/libgo/go/crypto/sha256/sha256.go @@ -123,7 +123,7 @@ func (d *digest) Write(p []byte) (nn int, err error) { return } -func (d0 *digest) Sum() []byte { +func (d0 *digest) Sum(in []byte) []byte { // Make a copy of d0 so that caller can keep writing and summing. d := new(digest) *d = *d0 @@ -149,17 +149,15 @@ func (d0 *digest) Sum() []byte { panic("d.nx != 0") } - p := make([]byte, 32) - j := 0 - for _, s := range d.h { - p[j+0] = byte(s >> 24) - p[j+1] = byte(s >> 16) - p[j+2] = byte(s >> 8) - p[j+3] = byte(s >> 0) - j += 4 - } + h := d.h[:] if d.is224 { - return p[0:28] + h = d.h[:7] + } + for _, s := range h { + in = append(in, byte(s>>24)) + in = append(in, byte(s>>16)) + in = append(in, byte(s>>8)) + in = append(in, byte(s)) } - return p + return in } |