加密及算法

    
    // AES加密
    func Encrypt(key string, iv string, data string) string {
        if len(data) == 0 {
            return ""
        }
        key2, _ := base64.StdEncoding.DecodeString(key)
        iv2, _ := base64.StdEncoding.DecodeString(iv)

        block, _ := aes.NewCipher(key2)
        bs := block.BlockSize()
        originData := _PKCS5Padding([]byte(data), bs)
        cipher.NewCBCEncrypter(block, iv2).CryptBlocks(originData, originData)

        data = base64.StdEncoding.EncodeToString(originData)
        return data
    }
    
    
    
    
    // AES解密
    func Decrypt(key string, iv string, data string) string {
        if len(data) == 0 {
            return ""
        }
        key2, _ := base64.StdEncoding.DecodeString(key)
        iv2, _ := base64.StdEncoding.DecodeString(iv)

        block, _ := aes.NewCipher(key2)
        originData, err := base64.StdEncoding.DecodeString(data)
        if err != nil {
            return ""
        }
        cipher.NewCBCDecrypter(block, iv2).CryptBlocks(originData, originData)

        data = string(_PKCS5UnPadding(originData))
        return data
    }