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Diffstat (limited to 'gcc-4.8.1/libgo/go/crypto/sha1/sha1block.go')
-rw-r--r--gcc-4.8.1/libgo/go/crypto/sha1/sha1block.go92
1 files changed, 0 insertions, 92 deletions
diff --git a/gcc-4.8.1/libgo/go/crypto/sha1/sha1block.go b/gcc-4.8.1/libgo/go/crypto/sha1/sha1block.go
deleted file mode 100644
index 1c9507c68..000000000
--- a/gcc-4.8.1/libgo/go/crypto/sha1/sha1block.go
+++ /dev/null
@@ -1,92 +0,0 @@
-// Copyright 2009 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.
-
-// SHA1 block step.
-// In its own file so that a faster assembly or C version
-// can be substituted easily.
-
-package sha1
-
-const (
- _K0 = 0x5A827999
- _K1 = 0x6ED9EBA1
- _K2 = 0x8F1BBCDC
- _K3 = 0xCA62C1D6
-)
-
-func block(dig *digest, p []byte) {
- var w [16]uint32
-
- h0, h1, h2, h3, h4 := dig.h[0], dig.h[1], dig.h[2], dig.h[3], dig.h[4]
- for len(p) >= chunk {
- // Can interlace the computation of w with the
- // rounds below if needed for speed.
- for i := 0; i < 16; i++ {
- j := i * 4
- w[i] = uint32(p[j])<<24 | uint32(p[j+1])<<16 | uint32(p[j+2])<<8 | uint32(p[j+3])
- }
-
- a, b, c, d, e := h0, h1, h2, h3, h4
-
- // Each of the four 20-iteration rounds
- // differs only in the computation of f and
- // the choice of K (_K0, _K1, etc).
- i := 0
- for ; i < 16; i++ {
- f := b&c | (^b)&d
- a5 := a<<5 | a>>(32-5)
- b30 := b<<30 | b>>(32-30)
- t := a5 + f + e + w[i&0xf] + _K0
- a, b, c, d, e = t, a, b30, c, d
- }
- for ; i < 20; i++ {
- tmp := w[(i-3)&0xf] ^ w[(i-8)&0xf] ^ w[(i-14)&0xf] ^ w[(i)&0xf]
- w[i&0xf] = tmp<<1 | tmp>>(32-1)
-
- f := b&c | (^b)&d
- a5 := a<<5 | a>>(32-5)
- b30 := b<<30 | b>>(32-30)
- t := a5 + f + e + w[i&0xf] + _K0
- a, b, c, d, e = t, a, b30, c, d
- }
- for ; i < 40; i++ {
- tmp := w[(i-3)&0xf] ^ w[(i-8)&0xf] ^ w[(i-14)&0xf] ^ w[(i)&0xf]
- w[i&0xf] = tmp<<1 | tmp>>(32-1)
- f := b ^ c ^ d
- a5 := a<<5 | a>>(32-5)
- b30 := b<<30 | b>>(32-30)
- t := a5 + f + e + w[i&0xf] + _K1
- a, b, c, d, e = t, a, b30, c, d
- }
- for ; i < 60; i++ {
- tmp := w[(i-3)&0xf] ^ w[(i-8)&0xf] ^ w[(i-14)&0xf] ^ w[(i)&0xf]
- w[i&0xf] = tmp<<1 | tmp>>(32-1)
- f := ((b | c) & d) | (b & c)
-
- a5 := a<<5 | a>>(32-5)
- b30 := b<<30 | b>>(32-30)
- t := a5 + f + e + w[i&0xf] + _K2
- a, b, c, d, e = t, a, b30, c, d
- }
- for ; i < 80; i++ {
- tmp := w[(i-3)&0xf] ^ w[(i-8)&0xf] ^ w[(i-14)&0xf] ^ w[(i)&0xf]
- w[i&0xf] = tmp<<1 | tmp>>(32-1)
- f := b ^ c ^ d
- a5 := a<<5 | a>>(32-5)
- b30 := b<<30 | b>>(32-30)
- t := a5 + f + e + w[i&0xf] + _K3
- a, b, c, d, e = t, a, b30, c, d
- }
-
- h0 += a
- h1 += b
- h2 += c
- h3 += d
- h4 += e
-
- p = p[chunk:]
- }
-
- dig.h[0], dig.h[1], dig.h[2], dig.h[3], dig.h[4] = h0, h1, h2, h3, h4
-}