diff --git a/_pkg.dev/crypto/aes/aes256.go b/_pkg.dev/crypto/aes/aes256.go
deleted file mode 100755
index c23c48843..000000000
--- a/_pkg.dev/crypto/aes/aes256.go
+++ /dev/null
@@ -1,93 +0,0 @@
-package aes
-
-import (
-	"crypto/aes"
-	"crypto/cipher"
-)
-
-// Encrypt encrypts the key with the given source.
-func Encrypt(src, key []byte) ([]byte, error) {
-	block, err := aes.NewCipher(key)
-	if err != nil {
-		return nil, err
-	}
-
-	ecb := newECBEncrypter(block)
-	out := make([]byte, len(src))
-	ecb.CryptBlocks(out, src)
-
-	return out, nil
-}
-
-// Decrypt decrypts the encrypted source with the given key.
-func Decrypt(crypted, key []byte) ([]byte, error) {
-	block, err := aes.NewCipher(key)
-	if err != nil {
-		return nil, err
-	}
-
-	blockMode := newECBDecrypter(block)
-	out := make([]byte, len(crypted))
-	blockMode.CryptBlocks(out, crypted)
-	return out, nil
-}
-
-type ecb struct {
-	b         cipher.Block
-	blockSize int
-}
-
-func newECB(b cipher.Block) *ecb {
-	return &ecb{
-		b:         b,
-		blockSize: b.BlockSize(),
-	}
-}
-
-type ecbEncrypter ecb
-
-func newECBEncrypter(b cipher.Block) cipher.BlockMode {
-	return (*ecbEncrypter)(newECB(b))
-}
-
-func (ecb *ecbEncrypter) BlockSize() int {
-	return ecb.blockSize
-}
-
-func (ecb *ecbEncrypter) CryptBlocks(dst, src []byte) {
-	if len(src)%ecb.blockSize != 0 {
-		panic("crypto/cipher: input not full blocks")
-	}
-	if len(dst) < len(src) {
-		panic("crypto/cipher: output smaller than input")
-	}
-	for len(src) > 0 {
-		ecb.b.Encrypt(dst, src[:ecb.blockSize])
-		src = src[ecb.blockSize:]
-		dst = dst[ecb.blockSize:]
-	}
-}
-
-type ecbDecrypter ecb
-
-func newECBDecrypter(b cipher.Block) cipher.BlockMode {
-	return (*ecbDecrypter)(newECB(b))
-}
-
-func (ecb ecbDecrypter) BlockSize() int {
-	return ecb.blockSize
-}
-
-func (ecb *ecbDecrypter) CryptBlocks(dst, src []byte) {
-	if len(src)%ecb.blockSize != 0 {
-		panic("crypto/cipher: input not full blocks")
-	}
-	if len(dst) < len(src) {
-		panic("crypto/cipher: output smaller than input")
-	}
-	for len(src) > 0 {
-		ecb.b.Decrypt(dst, src[:ecb.blockSize])
-		src = src[ecb.blockSize:]
-		dst = dst[ecb.blockSize:]
-	}
-}