1 files changed, 0 insertions, 166 deletions
diff --git a/src/pkg/crypto/sha256/sha256.go b/src/pkg/crypto/sha256/sha256.go
deleted file mode 100644
index a2c058d18..000000000
--- a/src/pkg/crypto/sha256/sha256.go
+++ /dev/null
@@ -1,166 +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 sha256 implements the SHA224 and SHA256 hash algorithms as defined
-// in FIPS 180-2.
-package sha256
-
-import (
-	"crypto"
-	"hash"
-	"os"
-)
-
-func init() {
-	crypto.RegisterHash(crypto.SHA224, New224)
-	crypto.RegisterHash(crypto.SHA256, New)
-}
-
-// The size of a SHA256 checksum in bytes.
-const Size = 32
-
-// The size of a SHA224 checksum in bytes.
-const Size224 = 28
-
-const (
-	_Chunk     = 64
-	_Init0     = 0x6A09E667
-	_Init1     = 0xBB67AE85
-	_Init2     = 0x3C6EF372
-	_Init3     = 0xA54FF53A
-	_Init4     = 0x510E527F
-	_Init5     = 0x9B05688C
-	_Init6     = 0x1F83D9AB
-	_Init7     = 0x5BE0CD19
-	_Init0_224 = 0xC1059ED8
-	_Init1_224 = 0x367CD507
-	_Init2_224 = 0x3070DD17
-	_Init3_224 = 0xF70E5939
-	_Init4_224 = 0xFFC00B31
-	_Init5_224 = 0x68581511
-	_Init6_224 = 0x64F98FA7
-	_Init7_224 = 0xBEFA4FA4
-)
-
-// digest represents the partial evaluation of a checksum.
-type digest struct {
-	h     [8]uint32
-	x     [_Chunk]byte
-	nx    int
-	len   uint64
-	is224 bool // mark if this digest is SHA-224
-}
-
-func (d *digest) Reset() {
-	if !d.is224 {
-		d.h[0] = _Init0
-		d.h[1] = _Init1
-		d.h[2] = _Init2
-		d.h[3] = _Init3
-		d.h[4] = _Init4
-		d.h[5] = _Init5
-		d.h[6] = _Init6
-		d.h[7] = _Init7
-	} else {
-		d.h[0] = _Init0_224
-		d.h[1] = _Init1_224
-		d.h[2] = _Init2_224
-		d.h[3] = _Init3_224
-		d.h[4] = _Init4_224
-		d.h[5] = _Init5_224
-		d.h[6] = _Init6_224
-		d.h[7] = _Init7_224
-	}
-	d.nx = 0
-	d.len = 0
-}
-
-// New returns a new hash.Hash computing the SHA256 checksum.
-func New() hash.Hash {
-	d := new(digest)
-	d.Reset()
-	return d
-}
-
-// New224 returns a new hash.Hash computing the SHA224 checksum.
-func New224() hash.Hash {
-	d := new(digest)
-	d.is224 = true
-	d.Reset()
-	return d
-}
-
-func (d *digest) Size() int {
-	if !d.is224 {
-		return Size
-	}
-	return Size224
-}
-
-func (d *digest) Write(p []byte) (nn int, err os.Error) {
-	nn = len(p)
-	d.len += uint64(nn)
-	if d.nx > 0 {
-		n := len(p)
-		if n > _Chunk-d.nx {
-			n = _Chunk - d.nx
-		}
-		for i := 0; i < n; i++ {
-			d.x[d.nx+i] = p[i]
-		}
-		d.nx += n
-		if d.nx == _Chunk {
-			_Block(d, d.x[0:])
-			d.nx = 0
-		}
-		p = p[n:]
-	}
-	n := _Block(d, p)
-	p = p[n:]
-	if len(p) > 0 {
-		d.nx = copy(d.x[:], p)
-	}
-	return
-}
-
-func (d0 *digest) Sum() []byte {
-	// Make a copy of d0 so that caller can keep writing and summing.
-	d := new(digest)
-	*d = *d0
-
-	// Padding.  Add a 1 bit and 0 bits until 56 bytes mod 64.
-	len := d.len
-	var tmp [64]byte
-	tmp[0] = 0x80
-	if len%64 < 56 {
-		d.Write(tmp[0 : 56-len%64])
-	} else {
-		d.Write(tmp[0 : 64+56-len%64])
-	}
-
-	// Length in bits.
-	len <<= 3
-	for i := uint(0); i < 8; i++ {
-		tmp[i] = byte(len >> (56 - 8*i))
-	}
-	d.Write(tmp[0:8])
-
-	if d.nx != 0 {
-		panic("d.nx != 0")
-	}
-
-	p := make([]byte, 32)
-	j := 0
-	for _, s := range d.h {
-		p[j+0] = byte(s >> 24)
-		p[j+1] = byte(s >> 16)
-		p[j+2] = byte(s >> 8)
-		p[j+3] = byte(s >> 0)
-		j += 4
-	}
-	if d.is224 {
-		return p[0:28]
-	}
-	return p
-}