main #1
4
.gitignore
vendored
4
.gitignore
vendored
@ -1,3 +1,7 @@
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jiangchao
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jiangchao
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__pycache__
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__pycache__
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example.py
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ReEncrypt.py
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45
src/tpre.py
45
src/tpre.py
@ -1,6 +1,5 @@
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from gmssl import * #pylint: disable = e0401
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from gmssl import * #pylint: disable = e0401
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from typing import Tuple, Callable
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from typing import Tuple, Callable
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import random
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# 生成密钥对模块
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# 生成密钥对模块
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class CurveFp:
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class CurveFp:
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@ -29,7 +28,7 @@ def multiply(a: Tuple[int, int], n: int) -> Tuple[int, int]:
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P = sm2p256v1.P
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P = sm2p256v1.P
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return fromJacobian(jacobianMultiply(toJacobian(a), n, N, A, P), P)
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return fromJacobian(jacobianMultiply(toJacobian(a), n, N, A, P), P)
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def add(a: Tuple[int, int], b: Tuple[int, int]) -> Tuple[int, int]:
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def add(a: Tuple[int, int], b: Tuple[int, int], A: int, P: int) -> Tuple[int, int]:
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A = sm2p256v1.A
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A = sm2p256v1.A
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P = sm2p256v1.P
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P = sm2p256v1.P
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return fromJacobian(jacobianAdd(toJacobian(a), toJacobian(b), A, P), P)
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return fromJacobian(jacobianAdd(toJacobian(a), toJacobian(b), A, P), P)
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@ -117,44 +116,22 @@ def jacobianMultiply(
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return jacobianAdd(jacobianDouble(jacobianMultiply((Xp, Yp, Zp), n // 2, N, A, P), A, P), (Xp, Yp, Zp), A, P)
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return jacobianAdd(jacobianDouble(jacobianMultiply((Xp, Yp, Zp), n // 2, N, A, P), A, P), (Xp, Yp, Zp), A, P)
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raise ValueError("jacobian Multiply error")
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raise ValueError("jacobian Multiply error")
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def Setup(sec: int) -> Tuple[CurveFp, Tuple[int, int],
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def Setup(sec: int) -> Tuple[int, int, int, Callable, Callable, Callable, Callable]:
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Tuple[int, int], Callable,
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Callable, Callable, Callable]:
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'''
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'''
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params:
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params:
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sec: an init safety param
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sec: an init safety param
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return:
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return:
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G: sm2 curve
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G:
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g: generator
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U: another generator
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sm3
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hash2: G^2 -> Zq
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hash3: G^3 -> Zq
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hash4: G^3 * Zq -> Zq
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'''
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'''
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G = sm2p256v1
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g = (sm2p256v1.Gx, sm2p256v1.Gy)
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tmp_u = random.randint(0, sm2p256v1.P)
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U = multiply(g, tmp_u)
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hash2 = Sm3() #pylint: disable=e0602
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hash3 = Sm3() #pylint: disable=e0602
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hash4 = Sm3() #pylint: disable=e0602
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KDF = Sm3() #pylint: disable=e0602
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return G, g, U, hash2, hash3, hash4, KDF
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return G, g, U, hash2, hash3, hash4, KDF
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def GenerateKeyPair(
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def GenerateKeyPair(
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lamda_parma: int,
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lamda_parma: int,
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public_params: tuple
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public_params: tuple
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) -> Tuple[Tuple[int, int], int]:
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) -> Tuple[Tuple[bytes, bytes], bytes]:
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'''
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'''
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params:
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params:
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lamda_param: an init safety param
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lamda_param: an init safety param
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@ -163,14 +140,16 @@ def GenerateKeyPair(
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return:
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return:
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public_key, secret_key
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public_key, secret_key
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'''
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'''
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sm2 = Sm2Key() #pylint: disable=e0602
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sm2 = Sm2Key()
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sm2.generate_key()
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sm2.generate_key()
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public_key_x = bytes(sm2.public_key.x)
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public_key_x = int.from_bytes(bytes(sm2.public_key.x),"big")
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public_key_y = bytes(sm2.public_key.y)
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public_key_y = int.from_bytes(bytes(sm2.public_key.y),"big")
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public_key = (public_key_x, public_key_y)
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public_key = (public_key_x, public_key_y)
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secret_key = bytes(sm2.private_key)
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print(private_key)
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secret_key = int.from_bytes(bytes(sm2.private_key),"big")
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return public_key, secret_key
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return public_key, secret_key
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