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// Package aes contains provides AES Key Wrap and ECB mode implementations
package aes
import (
"crypto/cipher"
)
type ecb struct {
b cipher.Block
}
type ecbEncrypter ecb
type ecbDecrypter ecb
// NewECBEncrypter creates BlockMode for AES encryption in ECB mode
func NewECBEncrypter(b cipher.Block) cipher.BlockMode {
return &ecbEncrypter{b: b}
}
// NewECBDecrypter creates BlockMode for AES decryption in ECB mode
func NewECBDecrypter(b cipher.Block) cipher.BlockMode {
return &ecbDecrypter{b: b}
}
func (x *ecbEncrypter) BlockSize() int { return x.b.BlockSize() }
func (x *ecbDecrypter) BlockSize() int { return x.b.BlockSize() }
func (x *ecbDecrypter) CryptBlocks(dst, src []byte) {
bs := x.BlockSize()
if len(src)%bs != 0 {
panic("ecbDecrypter.CryptBlocks(): input not full blocks")
}
if len(dst) < len(src) {
panic("ecbDecrypter.CryptBlocks(): output smaller than input")
}
if len(src) == 0 {
return
}
for len(src) > 0 {
x.b.Decrypt(dst, src)
src = src[bs:]
}
}
func (x *ecbEncrypter) CryptBlocks(dst, src []byte) {
bs := x.BlockSize()
if len(src)%bs != 0 {
panic("ecbEncrypter.CryptBlocks(): input not full blocks")
}
if len(dst) < len(src) {
panic("ecbEncrypter.CryptBlocks(): output smaller than input")
}
if len(src) == 0 {
return
}
for len(src) > 0 {
x.b.Encrypt(dst, src)
src = src[bs:]
}
}
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