tongsuopy 1.0.0

Tongsuo Python SDK

tongsuo-python-sdk

Tongsuo-Python-SDK基于Tongsuo密码库, 为Python应用提供密码学原语和安全传输协议的支持，目前以支持中国商用密码算法和安全协议为主。

SM2签名，详见sm2_sign.py

from tongsuopy.crypto import hashes
from tongsuopy.crypto.asymciphers import ec

key = ec.EllipticCurvePrivateNumbers(
    int(d, 16),
    ec.EllipticCurvePublicNumbers(int(Qx, 16), int(Qy, 16), ec.SM2()),
).private_key()
signature = key.sign(msg, ec.ECDSA(hashes.SM3()))

SM2验签，详见sm2_verify.py

from tongsuopy.crypto import hashes
from tongsuopy.crypto.asymciphers import ec
from tongsuopy.crypto.asymciphers.utils import encode_dss_signature

signature = encode_dss_signature(R, S)

pubkey = ec.EllipticCurvePublicNumbers(
    (Qx, Qy), ec.SM2()
).public_key()
pubkey.verify(signature, msg, ec.ECDSA(hashes.SM3()))

SM3杂凑，详见sm3.py

from tongsuopy.crypto import hashes

h = hashes.Hash(hashes.SM3())
h.update(b"abc")
res = h.finalize()

SM4-CBC加密，详见sm4_cbc.py

from tongsuopy.crypto.ciphers import Cipher, algorithms, modes

c = Cipher(algorithms.SM4(key), modes.CBC(iv))
enc = c.encryptor()
ciphertext = enc.update(plaintext)
ciphertext += enc.finalize()

SM4-GCM加密，详见sm4_gcm.py

from tongsuopy.crypto.ciphers import Cipher, algorithms, modes

c = Cipher(algorithms.SM4(key), modes.GCM(iv))

enc = c.encryptor()
enc.authenticate_additional_data(aad)
ciphertext = enc.update(plaintext)
ciphertext += enc.finalize()

安装

pip install tongsuopy

要求Python >= 3.6。

功能特性

• 支持SM2签名和验签
• 支持SM3杂凑算法
• 支持SM4加解密，包括ECB、CBC、OFB、CFB、CTR模式
• 支持SM4-GCM和SM4-CCM
• [TODO] TLCP协议支持

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