python 国密sm2(C1C3C2) sm4(CBC) 加密 解密

#在官方案例中,未配置mode = cipherMode,导致与别的程序加密解密不统一.  这里采用C1C3C2模式

from gmssl.sm4 import CryptSM4, SM4_ENCRYPT, SM4_DECRYPT
import binascii
import base64
from gmssl import sm2, func
# GMSSL for Python
# 安装 pip install gmssl
#
keycode = '101231221289195374403401962572899'
key = '1012312212891953'
iv = '1012312262572899'
inputText = '{"key":"1012312212891953","iv":"1012312262572899","encryptText":"123456","inputType":"sm4-cbc","formatOut":"base64"}' #  bytes类型
private_key = 'CB772811F1FEF955CE1B4051130870D86CCA6AFEDE806F1E7C225D7359591D2B'
public_key = '0475E60AB5B94860DAD0C2D193551A8B7A628A611DF332E23DFCB42F6ECC348653B8A49418E52FF8872B500EEAF8BE8C43B7389D115E91B7432BB1C939E764D31A'
cipherMode = 1


keyBytes = key.encode()
ivBytes = iv.encode()
inputTextBytes = inputText.encode()

def ByteToHex( bins ):
    return ''.join( [ "%02X" % x for x in bins ] ).strip()

def HexToByte( hexStr ):
    return bytes.fromhex(hexStr)

#sm4CBC
crypt_sm4 = CryptSM4()
crypt_sm4.set_key(keyBytes, SM4_ENCRYPT)
encrypt_value = crypt_sm4.crypt_cbc(ivBytes , inputTextBytes) #  bytes类型

crypt_sm4.set_key(keyBytes, SM4_DECRYPT)
decrypt_value = crypt_sm4.crypt_cbc(ivBytes, encrypt_value)
decrypt_value = decrypt_value.decode('utf-8')
assert inputText == decrypt_value

#print("SM4CBC加密(bytes):",encrypt_value)
print("SM4CBC加密 (hex):",ByteToHex(encrypt_value))
print("SM4CBC加密 (base64):",base64.b64encode(encrypt_value))
print("SM4CBC解密(utf-8):",decrypt_value)

#sm2 cipherMode (c1c3c2)
sm2_crypt = sm2.CryptSM2(
    public_key = public_key,
    private_key = private_key,
    mode = cipherMode
)

enc_data = sm2_crypt.encrypt(inputTextBytes)
dec_data =sm2_crypt.decrypt(enc_data).decode('utf-8')
assert dec_data == dec_data

#print("SM2加密(bytes):",enc_data)
print("SM2加密 (hex):","04" + ByteToHex(enc_data))
print("SM2加密 (hex):","04" + enc_data.hex())
print("SM2解密(utf-8):",dec_data)

 

 

from gmssl.sm4 import CryptSM4, SM4_ENCRYPT, SM4_DECRYPT
import binascii
import base64
from gmssl import sm2, func

# GMSSL for Python
# 安装 pip install gmssl
# 封装函数

def sm2Encrypt(inputText, public_key, private_key, cipherMode = 1):
    inputTextBytes = inputText.encode()
    sm2_crypt = sm2.CryptSM2(
        public_key = public_key,
        private_key = private_key,
        mode = cipherMode
    )
    sm2EncryptData = sm2_crypt.encrypt(inputTextBytes)
    return '04' + sm2EncryptData.hex()

def sm4Encrypt(inputText, keycode):
    key = keycode[:16]
    iv = keycode[:8] + keycode[-8:]
    keyBytes = key.encode()
    ivBytes = iv.encode()
    inputTextBytes = inputText.encode()

    crypt_sm4 = CryptSM4()
    crypt_sm4.set_key(keyBytes, SM4_ENCRYPT)

    sm4EncryptData = crypt_sm4.crypt_cbc(ivBytes, inputTextBytes)  # bytes类型
    return base64.b64encode(sm4EncryptData).decode('utf-8')

def sm4Decrypt(inputText, keycode):
    key = keycode[:16]
    iv = keycode[:8] + keycode[-8:]
    keyBytes = key.encode()
    ivBytes = iv.encode()
    #inputTextBytes = inputText.encode()
    inputTextBytes = base64.b64decode(inputText)

    crypt_sm4 = CryptSM4()
    crypt_sm4.set_key(keyBytes, SM4_DECRYPT)

    sm4DecryptData = crypt_sm4.crypt_cbc(ivBytes, inputTextBytes)  # bytes类型
    return sm4DecryptData.decode('utf-8')

#sm2加密
inputText = '{"key":"1012312212891953","iv":"1012312262572899","encryptText":"123456","inputType":"sm4-cbc","formatOut":"base64"}' #  bytes类型
private_key = 'CB772811F1FEF955CE1B4051130870D86CCA6AFEDE806F1E7C225D7359591D2B'
public_key = '0475E60AB5B94860DAD0C2D193551A8B7A628A611DF332E23DFCB42F6ECC348653B8A49418E52FF8872B500EEAF8BE8C43B7389D115E91B7432BB1C939E764D31A'
sm2EncryptData = sm2Encrypt(inputText, public_key, private_key, cipherMode = 1)
print('sm2函数加密:',sm2EncryptData)

#sm4CBC加密
keycode = '101231221289195374403401962572899'
inputText = '{"key":"1012312212891953","iv":"1012312262572899","encryptText":"123456","inputType":"sm4-cbc","formatOut":"base64"}'
sm4EncryptData = sm4Encrypt(inputText, keycode)
print('sm4函数加密:',sm4EncryptData)

#sm4CBC解密
keycode = '101231221289195374403401962572899'
inputText = 'BHHr6W74yPnZEx4kFixG6bCTE7VJabZwANxpsh0G2cmd1ztFH5qSA7Qf1M6bxN4mh1wXxv0yDSO8sZnmvuH3XHNIiE7EaI+fxRsOQTcmZei5fKoaxSnT9ltv79VqSJ8D4m3YO5jiWOVEaJ+x5i8yx4iOWpcc5ZPhHT8Y6f8EP0o='

sm4EncryptData = sm4Decrypt(inputText, keycode)
print('sm4函数解密:',sm4EncryptData)