SM4 加解密 python 代码

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import binascii

#导入国密算法sm4包
from gmssl import sm4

def sm4_encode(key, data):
    """
    国密sm4加密
    :param key: 密钥
    :param data: 原始数据
    :return: 密文hex
    """
    sm4Alg = sm4.CryptSM4()  # 实例化sm4
    sm4Alg.set_key(key.encode(), sm4.SM4_ENCRYPT)  # 设置密钥
    dateStr = str(data)
    print("明文:", dateStr)
    enRes = sm4Alg.crypt_ecb(dateStr.encode())  # 开始加密,bytes类型，ecb模式
    enHexStr = enRes.hex()
    print("密文:", enHexStr)
    return enHexStr # 返回十六进制值
    # return encrypt_value.hex()

def sm4_decode(key, data):
    """
    国密sm4解密
    :param key: 密钥
    :param data: 密文数据
    :return: 明文hex
    """
    sm4Alg = sm4.CryptSM4()  # 实例化sm4
    sm4Alg.set_key(key.encode(), sm4.SM4_DECRYPT)  # 设置密钥
    deRes = sm4Alg.crypt_ecb(bytes.fromhex(data))  # 开始解密。十六进制类型,ecb模式
    deHexStr = deRes.decode()
    print("解密后明文:", deRes)
    return deRes

#测试函数
def test():
    key = "E1A90FB64DDE12AE"
    strData = "1234567890abcdef"

    enHexRes = sm4_encode(key,strData)

    print("解密对象<", enHexRes, ">")

    sm4_decode(key,enHexRes)

# main 
if __name__ == '__main__':
    print("加解密测试: ")
    test()

实验结果

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加解密测试: 
明文: 1234567890abcdef
密文: dfe55390cd4644938b94f6d6073e370ba7cba2fe75751ce0d170047b92d3ae58
解密对象< dfe55390cd4644938b94f6d6073e370ba7cba2fe75751ce0d170047b92d3ae58 >
解密后明文: b'1234567890abcdef'

Process finished with exit code 0