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path: root/src/pkg/crypto/aes/cipher.go
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Diffstat (limited to 'src/pkg/crypto/aes/cipher.go')
-rw-r--r--src/pkg/crypto/aes/cipher.go66
1 files changed, 0 insertions, 66 deletions
diff --git a/src/pkg/crypto/aes/cipher.go b/src/pkg/crypto/aes/cipher.go
deleted file mode 100644
index 2c6bb0a89..000000000
--- a/src/pkg/crypto/aes/cipher.go
+++ /dev/null
@@ -1,66 +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 aes
-
-import (
- "crypto/cipher"
- "strconv"
-)
-
-// The AES block size in bytes.
-const BlockSize = 16
-
-// A cipher is an instance of AES encryption using a particular key.
-type aesCipher struct {
- enc []uint32
- dec []uint32
-}
-
-type KeySizeError int
-
-func (k KeySizeError) Error() string {
- return "crypto/aes: invalid key size " + strconv.Itoa(int(k))
-}
-
-// NewCipher creates and returns a new cipher.Block.
-// The key argument should be the AES key,
-// either 16, 24, or 32 bytes to select
-// AES-128, AES-192, or AES-256.
-func NewCipher(key []byte) (cipher.Block, error) {
- k := len(key)
- switch k {
- default:
- return nil, KeySizeError(k)
- case 16, 24, 32:
- break
- }
-
- n := k + 28
- c := &aesCipher{make([]uint32, n), make([]uint32, n)}
- expandKey(key, c.enc, c.dec)
- return c, nil
-}
-
-func (c *aesCipher) BlockSize() int { return BlockSize }
-
-func (c *aesCipher) Encrypt(dst, src []byte) {
- if len(src) < BlockSize {
- panic("crypto/aes: input not full block")
- }
- if len(dst) < BlockSize {
- panic("crypto/aes: output not full block")
- }
- encryptBlock(c.enc, dst, src)
-}
-
-func (c *aesCipher) Decrypt(dst, src []byte) {
- if len(src) < BlockSize {
- panic("crypto/aes: input not full block")
- }
- if len(dst) < BlockSize {
- panic("crypto/aes: output not full block")
- }
- decryptBlock(c.dec, dst, src)
-}