diff options
Diffstat (limited to 'Godeps/_workspace/src/golang.org/x/crypto/ripemd160/ripemd160block.go')
-rw-r--r-- | Godeps/_workspace/src/golang.org/x/crypto/ripemd160/ripemd160block.go | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/Godeps/_workspace/src/golang.org/x/crypto/ripemd160/ripemd160block.go b/Godeps/_workspace/src/golang.org/x/crypto/ripemd160/ripemd160block.go deleted file mode 100644 index 7bc8e6c48..000000000 --- a/Godeps/_workspace/src/golang.org/x/crypto/ripemd160/ripemd160block.go +++ /dev/null @@ -1,161 +0,0 @@ -// Copyright 2010 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// RIPEMD-160 block step. -// In its own file so that a faster assembly or C version -// can be substituted easily. - -package ripemd160 - -// work buffer indices and roll amounts for one line -var _n = [80]uint{ - 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, - 7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8, - 3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12, - 1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2, - 4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13, -} - -var _r = [80]uint{ - 11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8, - 7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12, - 11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5, - 11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12, - 9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6, -} - -// same for the other parallel one -var n_ = [80]uint{ - 5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12, - 6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2, - 15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13, - 8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14, - 12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11, -} - -var r_ = [80]uint{ - 8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6, - 9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11, - 9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5, - 15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8, - 8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11, -} - -func _Block(md *digest, p []byte) int { - n := 0 - var x [16]uint32 - var alpha, beta uint32 - for len(p) >= BlockSize { - a, b, c, d, e := md.s[0], md.s[1], md.s[2], md.s[3], md.s[4] - aa, bb, cc, dd, ee := a, b, c, d, e - j := 0 - for i := 0; i < 16; i++ { - x[i] = uint32(p[j]) | uint32(p[j+1])<<8 | uint32(p[j+2])<<16 | uint32(p[j+3])<<24 - j += 4 - } - - // round 1 - i := 0 - for i < 16 { - alpha = a + (b ^ c ^ d) + x[_n[i]] - s := _r[i] - alpha = (alpha<<s | alpha>>(32-s)) + e - beta = c<<10 | c>>22 - a, b, c, d, e = e, alpha, b, beta, d - - // parallel line - alpha = aa + (bb ^ (cc | ^dd)) + x[n_[i]] + 0x50a28be6 - s = r_[i] - alpha = (alpha<<s | alpha>>(32-s)) + ee - beta = cc<<10 | cc>>22 - aa, bb, cc, dd, ee = ee, alpha, bb, beta, dd - - i++ - } - - // round 2 - for i < 32 { - alpha = a + (b&c | ^b&d) + x[_n[i]] + 0x5a827999 - s := _r[i] - alpha = (alpha<<s | alpha>>(32-s)) + e - beta = c<<10 | c>>22 - a, b, c, d, e = e, alpha, b, beta, d - - // parallel line - alpha = aa + (bb&dd | cc&^dd) + x[n_[i]] + 0x5c4dd124 - s = r_[i] - alpha = (alpha<<s | alpha>>(32-s)) + ee - beta = cc<<10 | cc>>22 - aa, bb, cc, dd, ee = ee, alpha, bb, beta, dd - - i++ - } - - // round 3 - for i < 48 { - alpha = a + (b | ^c ^ d) + x[_n[i]] + 0x6ed9eba1 - s := _r[i] - alpha = (alpha<<s | alpha>>(32-s)) + e - beta = c<<10 | c>>22 - a, b, c, d, e = e, alpha, b, beta, d - - // parallel line - alpha = aa + (bb | ^cc ^ dd) + x[n_[i]] + 0x6d703ef3 - s = r_[i] - alpha = (alpha<<s | alpha>>(32-s)) + ee - beta = cc<<10 | cc>>22 - aa, bb, cc, dd, ee = ee, alpha, bb, beta, dd - - i++ - } - - // round 4 - for i < 64 { - alpha = a + (b&d | c&^d) + x[_n[i]] + 0x8f1bbcdc - s := _r[i] - alpha = (alpha<<s | alpha>>(32-s)) + e - beta = c<<10 | c>>22 - a, b, c, d, e = e, alpha, b, beta, d - - // parallel line - alpha = aa + (bb&cc | ^bb&dd) + x[n_[i]] + 0x7a6d76e9 - s = r_[i] - alpha = (alpha<<s | alpha>>(32-s)) + ee - beta = cc<<10 | cc>>22 - aa, bb, cc, dd, ee = ee, alpha, bb, beta, dd - - i++ - } - - // round 5 - for i < 80 { - alpha = a + (b ^ (c | ^d)) + x[_n[i]] + 0xa953fd4e - s := _r[i] - alpha = (alpha<<s | alpha>>(32-s)) + e - beta = c<<10 | c>>22 - a, b, c, d, e = e, alpha, b, beta, d - - // parallel line - alpha = aa + (bb ^ cc ^ dd) + x[n_[i]] - s = r_[i] - alpha = (alpha<<s | alpha>>(32-s)) + ee - beta = cc<<10 | cc>>22 - aa, bb, cc, dd, ee = ee, alpha, bb, beta, dd - - i++ - } - - // combine results - dd += c + md.s[1] - md.s[1] = md.s[2] + d + ee - md.s[2] = md.s[3] + e + aa - md.s[3] = md.s[4] + a + bb - md.s[4] = md.s[0] + b + cc - md.s[0] = dd - - p = p[BlockSize:] - n += BlockSize - } - return n -} |