diff options
Diffstat (limited to 'src/pkg/crypto/md4/md4block.go')
| -rw-r--r-- | src/pkg/crypto/md4/md4block.go | 76 |
1 files changed, 38 insertions, 38 deletions
diff --git a/src/pkg/crypto/md4/md4block.go b/src/pkg/crypto/md4/md4block.go index 6f2c2d5a2..492e960ca 100644 --- a/src/pkg/crypto/md4/md4block.go +++ b/src/pkg/crypto/md4/md4block.go @@ -16,18 +16,18 @@ var xIndex2 = []uint{0, 4, 8, 12, 1, 5, 9, 13, 2, 6, 10, 14, 3, 7, 11, 15} var xIndex3 = []uint{0, 8, 4, 12, 2, 10, 6, 14, 1, 9, 5, 13, 3, 11, 7, 15} func _Block(dig *digest, p []byte) int { - a := dig.s[0]; - b := dig.s[1]; - c := dig.s[2]; - d := dig.s[3]; - n := 0; - var X [16]uint32; + a := dig.s[0] + b := dig.s[1] + c := dig.s[2] + d := dig.s[3] + n := 0 + var X [16]uint32 for len(p) >= _Chunk { - aa, bb, cc, dd := a, b, c, d; + aa, bb, cc, dd := a, b, c, d for i := 0; i < 16; i++ { - j := i * 4; - X[i] = uint32(p[j]) | uint32(p[j+1])<<8 | uint32(p[j+2])<<16 | uint32(p[j+3])<<24; + j := i * 4 + X[i] = uint32(p[j]) | uint32(p[j+1])<<8 | uint32(p[j+2])<<16 | uint32(p[j+3])<<24 } // If this needs to be made faster in the future, @@ -40,46 +40,46 @@ func _Block(dig *digest, p []byte) int { // Round 1. for i := 0; i < 16; i++ { - x := i; - s := shift1[i%4]; - f := ((c ^ d) & b) ^ d; - a += f + X[x]; - a = a<<s | a>>(32-s); - a, b, c, d = d, a, b, c; + x := i + s := shift1[i%4] + f := ((c ^ d) & b) ^ d + a += f + X[x] + a = a<<s | a>>(32-s) + a, b, c, d = d, a, b, c } // Round 2. for i := 0; i < 16; i++ { - x := xIndex2[i]; - s := shift2[i%4]; - g := (b & c) | (b & d) | (c & d); - a += g + X[x] + 0x5a827999; - a = a<<s | a>>(32-s); - a, b, c, d = d, a, b, c; + x := xIndex2[i] + s := shift2[i%4] + g := (b & c) | (b & d) | (c & d) + a += g + X[x] + 0x5a827999 + a = a<<s | a>>(32-s) + a, b, c, d = d, a, b, c } // Round 3. for i := 0; i < 16; i++ { - x := xIndex3[i]; - s := shift3[i%4]; - h := b ^ c ^ d; - a += h + X[x] + 0x6ed9eba1; - a = a<<s | a>>(32-s); - a, b, c, d = d, a, b, c; + x := xIndex3[i] + s := shift3[i%4] + h := b ^ c ^ d + a += h + X[x] + 0x6ed9eba1 + a = a<<s | a>>(32-s) + a, b, c, d = d, a, b, c } - a += aa; - b += bb; - c += cc; - d += dd; + a += aa + b += bb + c += cc + d += dd - p = p[_Chunk:]; - n += _Chunk; + p = p[_Chunk:] + n += _Chunk } - dig.s[0] = a; - dig.s[1] = b; - dig.s[2] = c; - dig.s[3] = d; - return n; + dig.s[0] = a + dig.s[1] = b + dig.s[2] = c + dig.s[3] = d + return n } |