pythonSM4加密

 数据安全法及密评要求，敏感数据系统需要使用国密算法进行加解密处理。

敏感数使用SM4/ECB加解密方式

#密钥参数epidemic_key
#加密信息参数 message
#加密算法SM4/ECB/PKCS5Padding
#加密类型SM4-ECB
#添加模式PKCS5Padding

from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes
from cryptography.hazmat.backends import default_backend
import binascii
#密钥参数epidemic_key
#加密信息参数 message
#加密算法SM4/ECB/PKCS5Padding
#加密类型SM4-ECB
#添加模式PKCS5Padding
def sm4_encrypt_ecb(data, key):cipher = Cipher(algorithms.SM4(binascii.unhexlify(key)), modes.ECB(), backend=default_backend())encryptor = cipher.encryptor()# Use PKCS7 paddingpadded_data = data.encode('utf-8') + bytes([16 - len(data) % 16] * (16 - len(data) % 16))ciphertext = encryptor.update(padded_data) + encryptor.finalize()return binascii.hexlify(ciphertext).decode('utf-8')def sm4_decrypt_ecb(ciphertext, key):cipher = Cipher(algorithms.SM4(binascii.unhexlify(key)), modes.ECB(), backend=default_backend())decryptor = cipher.decryptor()decrypted_data = decryptor.update(binascii.unhexlify(ciphertext)) + decryptor.finalize()# Remove PKCS7 paddingreturn decrypted_data.rstrip(b'\x00').decode('utf-8')def main():epidemic_key = "4d18850d763e8748ff2f8d83530e0123"message = "123456"encrypted_message = sm4_encrypt_ecb(message, epidemic_key)print(f"Original Message: {message}")print(f"Encrypted Message: {encrypted_message}")decrypted_message = sm4_decrypt_ecb(encrypted_message, epidemic_key)print(f"Decrypted Message: {decrypted_message}")if __name__ == "__main__":main()

账户口令加密采用SM3进行hash 

from cryptography.hazmat.backends import default_backend
from cryptography.hazmat.primitives import hashes
import hashlib
def sm3_hash(data):digest = hashes.Hash(hashes.SM3(), backend=default_backend())digest.update(data.encode('utf-8'))return digest.finalize()
def main1():message = "闫三"hash_value = sm3_hash(message).hex()print(f"Message: {message}")print(f"SM3 Hash: {hash_value}")def md5_hash(data):md5 = hashlib.md5()md5.update(data.encode('utf-8'))return md5.hexdigest()
def main():message = "123456"hash_value = md5_hash(message)print(f"Message: {message}")print(f"MD5 Hash: {hash_value}")
if __name__ == "__main__":main1()main()