Imported Upstream version 1.4upstream/1.4

1 files changed, 0 insertions, 90 deletions

diff --git a/src/pkg/crypto/sha1/sha1block.go b/src/pkg/crypto/sha1/sha1block.go
deleted file mode 100644
index fde3c981c..000000000
--- a/src/pkg/crypto/sha1/sha1block.go
+++ /dev/null
@@ -1,90 +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.
-
-package sha1
-
-const (
-	_K0 = 0x5A827999
-	_K1 = 0x6ED9EBA1
-	_K2 = 0x8F1BBCDC
-	_K3 = 0xCA62C1D6
-)
-
-// blockGeneric is a portable, pure Go version of the SHA1 block step.
-// It's used by sha1block_generic.go and tests.
-func blockGeneric(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
-}