snowland-smx-python

1. SM2

   gm signature a. generate keypair

>>> from pysmx.SM2 import generate_keypair
>>> pk, sk = generate_keypair()

1. signature

>>> from pysmx.SM2 import Sign
>>> len_para = 64
>>> sig = Sign("hello", sk, '12345678abcdef', len_para)

1. verify

>>> from pysmx.SM2 import Verify
>>> len_para = 64
>>> Verify(sig, "hello", pk, len_para)

1. encrpto

>>> from pysmx.SM2 import Encrypt
>>> e = b'hello'
>>> len_para = 64
>>> C = Encrypt(e, pk, len_para, 0)  # 0 means var e is not a hex string

1. decrpto

>>> from  pysmx.SM2 import Decrypt
>>> len_para = 64
>>> m = Decrypt(C, sk, len_para)

1. SM3

   hash a. method 1:

>>> from pysmx.SM3 import SM3
>>> sm3 = SM3()
>>> sm3.update('abc')
>>> sm3.hexdigest()

1. method 2:

>>> from pysmx.SM3 import hash_msg
>>> s = 'abc'
>>> hash_msg(s)

1. SM4

   block encrpto a. encrpto

>>> from pysmx.SM4 import Sm4, ENCRYPT, DECRYPT
>>> key_data = b'hello word errrr...'  # 16 bytes at least
>>> sm4 = Sm4()
>>> input_data = [1,2,3]
>>> sm4.sm4_set_key(key_data, ENCRYPT)
>>> msg = sm4.sm4_crypt_ecb()

2. decryto

>>> from pysmx.SM4 import Sm4, ENCRYPT, DECRYPT
>>> key_data = b'hello word errrr...'  # 16 bytes at least
>>> sm4 = Sm4()
>>> sm4.sm4_set_key(key_data, DECRYPT)
>>> sm4.sm4_crypt_ecb(msg)

1. ZUC

   waiting for update