diff options
Diffstat (limited to 'gcc-4.8.1/libgo/go/crypto/md5/md5block.go')
| -rw-r--r-- | gcc-4.8.1/libgo/go/crypto/md5/md5block.go | 258 |
1 files changed, 0 insertions, 258 deletions
diff --git a/gcc-4.8.1/libgo/go/crypto/md5/md5block.go b/gcc-4.8.1/libgo/go/crypto/md5/md5block.go deleted file mode 100644 index 0ca421774..000000000 --- a/gcc-4.8.1/libgo/go/crypto/md5/md5block.go +++ /dev/null @@ -1,258 +0,0 @@ -package md5 - -import ( - "runtime" - "unsafe" -) - -const x86 = runtime.GOARCH == "amd64" || runtime.GOARCH == "386" - -var littleEndian bool - -func init() { - x := uint32(0x04030201) - y := [4]byte{0x1, 0x2, 0x3, 0x4} - littleEndian = *(*[4]byte)(unsafe.Pointer(&x)) == y -} - -func block(dig *digest, p []byte) { - a := dig.s[0] - b := dig.s[1] - c := dig.s[2] - d := dig.s[3] - var X *[16]uint32 - var xbuf [16]uint32 - for len(p) >= chunk { - aa, bb, cc, dd := a, b, c, d - - // This is a constant condition - it is not evaluated on each iteration. - if x86 { - // MD5 was designed so that x86 processors can just iterate - // over the block data directly as uint32s, and we generate - // less code and run 1.3x faster if we take advantage of that. - // My apologies. - X = (*[16]uint32)(unsafe.Pointer(&p[0])) - } else if littleEndian && uintptr(unsafe.Pointer(&p[0]))&(unsafe.Alignof(uint32(0))-1) == 0 { - X = (*[16]uint32)(unsafe.Pointer(&p[0])) - } else { - X = &xbuf - j := 0 - for i := 0; i < 16; i++ { - X[i&15] = uint32(p[j]) | uint32(p[j+1])<<8 | uint32(p[j+2])<<16 | uint32(p[j+3])<<24 - j += 4 - } - } - - // Round 1. - - a += (((c ^ d) & b) ^ d) + X[0] + 3614090360 - a = a<<7 | a>>(32-7) + b - - d += (((b ^ c) & a) ^ c) + X[1] + 3905402710 - d = d<<12 | d>>(32-12) + a - - c += (((a ^ b) & d) ^ b) + X[2] + 606105819 - c = c<<17 | c>>(32-17) + d - - b += (((d ^ a) & c) ^ a) + X[3] + 3250441966 - b = b<<22 | b>>(32-22) + c - - a += (((c ^ d) & b) ^ d) + X[4] + 4118548399 - a = a<<7 | a>>(32-7) + b - - d += (((b ^ c) & a) ^ c) + X[5] + 1200080426 - d = d<<12 | d>>(32-12) + a - - c += (((a ^ b) & d) ^ b) + X[6] + 2821735955 - c = c<<17 | c>>(32-17) + d - - b += (((d ^ a) & c) ^ a) + X[7] + 4249261313 - b = b<<22 | b>>(32-22) + c - - a += (((c ^ d) & b) ^ d) + X[8] + 1770035416 - a = a<<7 | a>>(32-7) + b - - d += (((b ^ c) & a) ^ c) + X[9] + 2336552879 - d = d<<12 | d>>(32-12) + a - - c += (((a ^ b) & d) ^ b) + X[10] + 4294925233 - c = c<<17 | c>>(32-17) + d - - b += (((d ^ a) & c) ^ a) + X[11] + 2304563134 - b = b<<22 | b>>(32-22) + c - - a += (((c ^ d) & b) ^ d) + X[12] + 1804603682 - a = a<<7 | a>>(32-7) + b - - d += (((b ^ c) & a) ^ c) + X[13] + 4254626195 - d = d<<12 | d>>(32-12) + a - - c += (((a ^ b) & d) ^ b) + X[14] + 2792965006 - c = c<<17 | c>>(32-17) + d - - b += (((d ^ a) & c) ^ a) + X[15] + 1236535329 - b = b<<22 | b>>(32-22) + c - - // Round 2. - - a += (((b ^ c) & d) ^ c) + X[(1+5*0)&15] + 4129170786 - a = a<<5 | a>>(32-5) + b - - d += (((a ^ b) & c) ^ b) + X[(1+5*1)&15] + 3225465664 - d = d<<9 | d>>(32-9) + a - - c += (((d ^ a) & b) ^ a) + X[(1+5*2)&15] + 643717713 - c = c<<14 | c>>(32-14) + d - - b += (((c ^ d) & a) ^ d) + X[(1+5*3)&15] + 3921069994 - b = b<<20 | b>>(32-20) + c - - a += (((b ^ c) & d) ^ c) + X[(1+5*4)&15] + 3593408605 - a = a<<5 | a>>(32-5) + b - - d += (((a ^ b) & c) ^ b) + X[(1+5*5)&15] + 38016083 - d = d<<9 | d>>(32-9) + a - - c += (((d ^ a) & b) ^ a) + X[(1+5*6)&15] + 3634488961 - c = c<<14 | c>>(32-14) + d - - b += (((c ^ d) & a) ^ d) + X[(1+5*7)&15] + 3889429448 - b = b<<20 | b>>(32-20) + c - - a += (((b ^ c) & d) ^ c) + X[(1+5*8)&15] + 568446438 - a = a<<5 | a>>(32-5) + b - - d += (((a ^ b) & c) ^ b) + X[(1+5*9)&15] + 3275163606 - d = d<<9 | d>>(32-9) + a - - c += (((d ^ a) & b) ^ a) + X[(1+5*10)&15] + 4107603335 - c = c<<14 | c>>(32-14) + d - - b += (((c ^ d) & a) ^ d) + X[(1+5*11)&15] + 1163531501 - b = b<<20 | b>>(32-20) + c - - a += (((b ^ c) & d) ^ c) + X[(1+5*12)&15] + 2850285829 - a = a<<5 | a>>(32-5) + b - - d += (((a ^ b) & c) ^ b) + X[(1+5*13)&15] + 4243563512 - d = d<<9 | d>>(32-9) + a - - c += (((d ^ a) & b) ^ a) + X[(1+5*14)&15] + 1735328473 - c = c<<14 | c>>(32-14) + d - - b += (((c ^ d) & a) ^ d) + X[(1+5*15)&15] + 2368359562 - b = b<<20 | b>>(32-20) + c - - // Round 3. - - a += (b ^ c ^ d) + X[(5+3*0)&15] + 4294588738 - a = a<<4 | a>>(32-4) + b - - d += (a ^ b ^ c) + X[(5+3*1)&15] + 2272392833 - d = d<<11 | d>>(32-11) + a - - c += (d ^ a ^ b) + X[(5+3*2)&15] + 1839030562 - c = c<<16 | c>>(32-16) + d - - b += (c ^ d ^ a) + X[(5+3*3)&15] + 4259657740 - b = b<<23 | b>>(32-23) + c - - a += (b ^ c ^ d) + X[(5+3*4)&15] + 2763975236 - a = a<<4 | a>>(32-4) + b - - d += (a ^ b ^ c) + X[(5+3*5)&15] + 1272893353 - d = d<<11 | d>>(32-11) + a - - c += (d ^ a ^ b) + X[(5+3*6)&15] + 4139469664 - c = c<<16 | c>>(32-16) + d - - b += (c ^ d ^ a) + X[(5+3*7)&15] + 3200236656 - b = b<<23 | b>>(32-23) + c - - a += (b ^ c ^ d) + X[(5+3*8)&15] + 681279174 - a = a<<4 | a>>(32-4) + b - - d += (a ^ b ^ c) + X[(5+3*9)&15] + 3936430074 - d = d<<11 | d>>(32-11) + a - - c += (d ^ a ^ b) + X[(5+3*10)&15] + 3572445317 - c = c<<16 | c>>(32-16) + d - - b += (c ^ d ^ a) + X[(5+3*11)&15] + 76029189 - b = b<<23 | b>>(32-23) + c - - a += (b ^ c ^ d) + X[(5+3*12)&15] + 3654602809 - a = a<<4 | a>>(32-4) + b - - d += (a ^ b ^ c) + X[(5+3*13)&15] + 3873151461 - d = d<<11 | d>>(32-11) + a - - c += (d ^ a ^ b) + X[(5+3*14)&15] + 530742520 - c = c<<16 | c>>(32-16) + d - - b += (c ^ d ^ a) + X[(5+3*15)&15] + 3299628645 - b = b<<23 | b>>(32-23) + c - - // Round 4. - - a += (c ^ (b | ^d)) + X[(7*0)&15] + 4096336452 - a = a<<6 | a>>(32-6) + b - - d += (b ^ (a | ^c)) + X[(7*1)&15] + 1126891415 - d = d<<10 | d>>(32-10) + a - - c += (a ^ (d | ^b)) + X[(7*2)&15] + 2878612391 - c = c<<15 | c>>(32-15) + d - - b += (d ^ (c | ^a)) + X[(7*3)&15] + 4237533241 - b = b<<21 | b>>(32-21) + c - - a += (c ^ (b | ^d)) + X[(7*4)&15] + 1700485571 - a = a<<6 | a>>(32-6) + b - - d += (b ^ (a | ^c)) + X[(7*5)&15] + 2399980690 - d = d<<10 | d>>(32-10) + a - - c += (a ^ (d | ^b)) + X[(7*6)&15] + 4293915773 - c = c<<15 | c>>(32-15) + d - - b += (d ^ (c | ^a)) + X[(7*7)&15] + 2240044497 - b = b<<21 | b>>(32-21) + c - - a += (c ^ (b | ^d)) + X[(7*8)&15] + 1873313359 - a = a<<6 | a>>(32-6) + b - - d += (b ^ (a | ^c)) + X[(7*9)&15] + 4264355552 - d = d<<10 | d>>(32-10) + a - - c += (a ^ (d | ^b)) + X[(7*10)&15] + 2734768916 - c = c<<15 | c>>(32-15) + d - - b += (d ^ (c | ^a)) + X[(7*11)&15] + 1309151649 - b = b<<21 | b>>(32-21) + c - - a += (c ^ (b | ^d)) + X[(7*12)&15] + 4149444226 - a = a<<6 | a>>(32-6) + b - - d += (b ^ (a | ^c)) + X[(7*13)&15] + 3174756917 - d = d<<10 | d>>(32-10) + a - - c += (a ^ (d | ^b)) + X[(7*14)&15] + 718787259 - c = c<<15 | c>>(32-15) + d - - b += (d ^ (c | ^a)) + X[(7*15)&15] + 3951481745 - b = b<<21 | b>>(32-21) + c - - a += aa - b += bb - c += cc - d += dd - - p = p[chunk:] - } - - dig.s[0] = a - dig.s[1] = b - dig.s[2] = c - dig.s[3] = d -} |