feed.encrypt4

golang-encryption.go

//Encrypt the results
func Encrypt(bites []byte) []byte {
	plainText, err := pad(bites, aes.BlockSize)
	if err != nil {
		log.Print(err)
		return make([]byte, 0)
	}
	block, _ := aes.NewCipher(encryptionKey)
	cipherText := make([]byte, aes.BlockSize+len(plainText))
	iv := cipherText[:aes.BlockSize]
	if _, err := io.ReadFull(rand.Reader, iv); err != nil {
		return make([]byte, 0)
	}
	mode := cipher.NewCBCEncrypter(block, iv)
	mode.CryptBlocks(cipherText[aes.BlockSize:], plainText)
	return []byte(fmt.Sprintf("%x", cipherText))
}

//Decrypt a command
func Decrypt(text string) string {
	cipherText, _ := hex.DecodeString(text)
	block, err := aes.NewCipher(encryptionKey)
	if err != nil {
		log.Print(err)
		return ""
	}
	iv := cipherText[:aes.BlockSize]
	cipherText = cipherText[aes.BlockSize:]
	mode := cipher.NewCBCDecrypter(block, iv)
	mode.CryptBlocks(cipherText, cipherText)
	cipherText, _ = unpad(cipherText, aes.BlockSize)
	return fmt.Sprintf("%s", cipherText)
}