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updated pycrypto

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shim_
2018-05-10 16:56:32 +02:00
parent fb89f1946b
commit 26579a25f1
92 changed files with 2518 additions and 5288 deletions
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13
modules/Crypto/PublicKey/ElGamal.py
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@@ -111,7 +111,6 @@ __all__ = ['generate', 'construct', 'error', 'ElGamalobj']
from Crypto.PublicKey.pubkey import *
from Crypto.Util import number
from Crypto import Random
class error (Exception):
pass
@@ -243,11 +242,6 @@ class ElGamalobj(pubkey):
#: - **x**, the private key.
keydata=['p', 'g', 'y', 'x']
def __init__(self, randfunc=None):
if randfunc is None:
randfunc = Random.new().read
self._randfunc = randfunc
def encrypt(self, plaintext, K):
"""Encrypt a piece of data with ElGamal.
@@ -337,11 +331,8 @@ class ElGamalobj(pubkey):
def _decrypt(self, M):
if (not hasattr(self, 'x')):
raise TypeError('Private key not available in this object')
r = number.getRandomRange(2, self.p-1, self._randfunc)
a_blind = (M[0] * pow(self.g, r, self.p)) % self.p
ax=pow(a_blind, self.x, self.p)
plaintext_blind = (M[1] * inverse(ax, self.p ) ) % self.p
plaintext = (plaintext_blind * pow(self.y, r, self.p)) % self.p
ax=pow(M[0], self.x, self.p)
plaintext=(M[1] * inverse(ax, self.p ) ) % self.p
return plaintext
def _sign(self, M, K):