mirror of
https://github.com/caddyserver/caddy.git
synced 2024-12-23 22:27:38 -05:00
6fde3632ef
The vendor/ folder was created with the help of @FiloSottile's gvt and vendorcheck. Any dependencies of Caddy plugins outside this repo are not vendored. We do not remove any unused, vendored packages because vendorcheck -u only checks using the current build configuration; i.e. packages that may be imported by files toggled by build tags of other systems. CI tests have been updated to ignore the vendor/ folder. When Go 1.9 is released, a few of the go commands should be revised to again use ./... as it will ignore the vendor folder by default.
68 lines
1.6 KiB
Go
68 lines
1.6 KiB
Go
// 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 aes12
|
|
|
|
import "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 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) (Block, error) {
|
|
k := len(key)
|
|
switch k {
|
|
default:
|
|
return nil, KeySizeError(k)
|
|
case 16, 24, 32:
|
|
break
|
|
}
|
|
return newCipher(key)
|
|
}
|
|
|
|
// newCipherGeneric creates and returns a new Block
|
|
// implemented in pure Go.
|
|
func newCipherGeneric(key []byte) (Block, error) {
|
|
n := len(key) + 28
|
|
c := aesCipher{make([]uint32, n), make([]uint32, n)}
|
|
expandKeyGo(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")
|
|
}
|
|
encryptBlockGo(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")
|
|
}
|
|
decryptBlockGo(c.dec, dst, src)
|
|
}
|