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Diffstat (limited to 'vendor/golang.org/x/crypto/md4/md4block.go')
-rw-r--r--vendor/golang.org/x/crypto/md4/md4block.go89
1 files changed, 0 insertions, 89 deletions
diff --git a/vendor/golang.org/x/crypto/md4/md4block.go b/vendor/golang.org/x/crypto/md4/md4block.go
deleted file mode 100644
index 3fed475..0000000
--- a/vendor/golang.org/x/crypto/md4/md4block.go
+++ /dev/null
@@ -1,89 +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.
-
-// MD4 block step.
-// In its own file so that a faster assembly or C version
-// can be substituted easily.
-
-package md4
-
-var shift1 = []uint{3, 7, 11, 19}
-var shift2 = []uint{3, 5, 9, 13}
-var shift3 = []uint{3, 9, 11, 15}
-
-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
- for len(p) >= _Chunk {
- aa, bb, cc, dd := a, b, c, d
-
- 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
- }
-
- // If this needs to be made faster in the future,
- // the usual trick is to unroll each of these
- // loops by a factor of 4; that lets you replace
- // the shift[] lookups with constants and,
- // with suitable variable renaming in each
- // unrolled body, delete the a, b, c, d = d, a, b, c
- // (or you can let the optimizer do the renaming).
- //
- // The index variables are uint so that % by a power
- // of two can be optimized easily by a compiler.
-
- // Round 1.
- for i := uint(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
- }
-
- // Round 2.
- for i := uint(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
- }
-
- // Round 3.
- for i := uint(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
- }
-
- a += aa
- b += bb
- c += cc
- d += dd
-
- p = p[_Chunk:]
- n += _Chunk
- }
-
- dig.s[0] = a
- dig.s[1] = b
- dig.s[2] = c
- dig.s[3] = d
- return n
-}