62 lines
1.8 KiB
Python
62 lines
1.8 KiB
Python
"""PyCrypto RSA implementation."""
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from cryptomath import *
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from RSAKey import *
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from Python_RSAKey import Python_RSAKey
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if pycryptoLoaded:
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from Crypto.PublicKey import RSA
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class PyCrypto_RSAKey(RSAKey):
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def __init__(self, n=0, e=0, d=0, p=0, q=0, dP=0, dQ=0, qInv=0):
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if not d:
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self.rsa = RSA.construct( (n, e) )
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else:
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self.rsa = RSA.construct( (n, e, d, p, q) )
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def __getattr__(self, name):
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return getattr(self.rsa, name)
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def hasPrivateKey(self):
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return self.rsa.has_private()
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def hash(self):
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return Python_RSAKey(self.n, self.e).hash()
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def _rawPrivateKeyOp(self, m):
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s = numberToString(m)
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byteLength = numBytes(self.n)
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if len(s)== byteLength:
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pass
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elif len(s) == byteLength-1:
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s = '\0' + s
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else:
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raise AssertionError()
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c = stringToNumber(self.rsa.decrypt((s,)))
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return c
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def _rawPublicKeyOp(self, c):
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s = numberToString(c)
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byteLength = numBytes(self.n)
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if len(s)== byteLength:
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pass
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elif len(s) == byteLength-1:
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s = '\0' + s
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else:
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raise AssertionError()
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m = stringToNumber(self.rsa.encrypt(s, None)[0])
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return m
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def writeXMLPublicKey(self, indent=''):
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return Python_RSAKey(self.n, self.e).write(indent)
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def generate(bits):
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key = PyCrypto_RSAKey()
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def f(numBytes):
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return bytesToString(getRandomBytes(numBytes))
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key.rsa = RSA.generate(bits, f)
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return key
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generate = staticmethod(generate)
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