diff options
Diffstat (limited to 'src/pkg/crypto/md5/md5block.go')
| -rw-r--r-- | src/pkg/crypto/md5/md5block.go | 104 |
1 files changed, 52 insertions, 52 deletions
diff --git a/src/pkg/crypto/md5/md5block.go b/src/pkg/crypto/md5/md5block.go index 4421acf8e..f35096d50 100644 --- a/src/pkg/crypto/md5/md5block.go +++ b/src/pkg/crypto/md5/md5block.go @@ -89,18 +89,18 @@ var shift3 = []uint{4, 11, 16, 23} var shift4 = []uint{6, 10, 15, 21} 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, @@ -113,64 +113,64 @@ func _Block(dig *digest, p []byte) int { // Round 1. for i := 0; i < 16; i++ { - x := i; - t := i; - s := shift1[i%4]; - f := ((c ^ d) & b) ^ d; - a += f + X[x] + table[t]; - a = a<<s | a>>(32-s); - a += b; - a, b, c, d = d, a, b, c; + x := i + t := i + s := shift1[i%4] + f := ((c ^ d) & b) ^ d + a += f + X[x] + table[t] + a = a<<s | a>>(32-s) + a += b + a, b, c, d = d, a, b, c } // Round 2. for i := 0; i < 16; i++ { - x := (1 + 5*i) % 16; - t := 16 + i; - s := shift2[i%4]; - g := ((b ^ c) & d) ^ c; - a += g + X[x] + table[t]; - a = a<<s | a>>(32-s); - a += b; - a, b, c, d = d, a, b, c; + x := (1 + 5*i) % 16 + t := 16 + i + s := shift2[i%4] + g := ((b ^ c) & d) ^ c + a += g + X[x] + table[t] + a = a<<s | a>>(32-s) + a += b + a, b, c, d = d, a, b, c } // Round 3. for i := 0; i < 16; i++ { - x := (5 + 3*i) % 16; - t := 32 + i; - s := shift3[i%4]; - h := b ^ c ^ d; - a += h + X[x] + table[t]; - a = a<<s | a>>(32-s); - a += b; - a, b, c, d = d, a, b, c; + x := (5 + 3*i) % 16 + t := 32 + i + s := shift3[i%4] + h := b ^ c ^ d + a += h + X[x] + table[t] + a = a<<s | a>>(32-s) + a += b + a, b, c, d = d, a, b, c } // Round 4. for i := 0; i < 16; i++ { - x := (7 * i) % 16; - s := shift4[i%4]; - t := 48 + i; - ii := c ^ (b | ^d); - a += ii + X[x] + table[t]; - a = a<<s | a>>(32-s); - a += b; - a, b, c, d = d, a, b, c; + x := (7 * i) % 16 + s := shift4[i%4] + t := 48 + i + ii := c ^ (b | ^d) + a += ii + X[x] + table[t] + a = a<<s | a>>(32-s) + a += b + 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 } |