1 files changed, 0 insertions, 100 deletions
diff --git a/src/pkg/crypto/hmac/hmac.go b/src/pkg/crypto/hmac/hmac.go
deleted file mode 100644
index 04ec86e9a..000000000
--- a/src/pkg/crypto/hmac/hmac.go
+++ /dev/null
@@ -1,100 +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 hmac implements the Keyed-Hash Message Authentication Code (HMAC) as
-// defined in U.S. Federal Information Processing Standards Publication 198.
-// An HMAC is a cryptographic hash that uses a key to sign a message.
-// The receiver verifies the hash by recomputing it using the same key.
-package hmac
-
-import (
-	"crypto/md5"
-	"crypto/sha1"
-	"crypto/sha256"
-	"hash"
-	"os"
-)
-
-// FIPS 198:
-// http://csrc.nist.gov/publications/fips/fips198/fips-198a.pdf
-
-// key is zero padded to 64 bytes
-// ipad = 0x36 byte repeated to 64 bytes
-// opad = 0x5c byte repeated to 64 bytes
-// hmac = H([key ^ opad] H([key ^ ipad] text))
-
-const (
-	// NOTE(rsc): This constant is actually the
-	// underlying hash function's block size.
-	// HMAC is only conventionally used with
-	// MD5 and SHA1, and both use 64-byte blocks.
-	// The hash.Hash interface doesn't provide a
-	// way to find out the block size.
-	padSize = 64
-)
-
-type hmac struct {
-	size         int
-	key, tmp     []byte
-	outer, inner hash.Hash
-}
-
-func (h *hmac) tmpPad(xor byte) {
-	for i, k := range h.key {
-		h.tmp[i] = xor ^ k
-	}
-	for i := len(h.key); i < padSize; i++ {
-		h.tmp[i] = xor
-	}
-}
-
-func (h *hmac) Sum() []byte {
-	sum := h.inner.Sum()
-	h.tmpPad(0x5c)
-	for i, b := range sum {
-		h.tmp[padSize+i] = b
-	}
-	h.outer.Reset()
-	h.outer.Write(h.tmp)
-	return h.outer.Sum()
-}
-
-func (h *hmac) Write(p []byte) (n int, err os.Error) {
-	return h.inner.Write(p)
-}
-
-func (h *hmac) Size() int { return h.size }
-
-func (h *hmac) Reset() {
-	h.inner.Reset()
-	h.tmpPad(0x36)
-	h.inner.Write(h.tmp[0:padSize])
-}
-
-// New returns a new HMAC hash using the given hash generator and key.
-func New(h func() hash.Hash, key []byte) hash.Hash {
-	hm := new(hmac)
-	hm.outer = h()
-	hm.inner = h()
-	hm.size = hm.inner.Size()
-	hm.tmp = make([]byte, padSize+hm.size)
-	if len(key) > padSize {
-		// If key is too big, hash it.
-		hm.outer.Write(key)
-		key = hm.outer.Sum()
-	}
-	hm.key = make([]byte, len(key))
-	copy(hm.key, key)
-	hm.Reset()
-	return hm
-}
-
-// NewMD5 returns a new HMAC-MD5 hash using the given key.
-func NewMD5(key []byte) hash.Hash { return New(md5.New, key) }
-
-// NewSHA1 returns a new HMAC-SHA1 hash using the given key.
-func NewSHA1(key []byte) hash.Hash { return New(sha1.New, key) }
-
-// NewSHA256 returns a new HMAC-SHA256 hash using the given key.
-func NewSHA256(key []byte) hash.Hash { return New(sha256.New, key) }