/usr/share/pyshared/gdata/tlslite/utils/OpenSSL_RSAKey.py is in python-gdata 2.0.14-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 | """OpenSSL/M2Crypto RSA implementation."""
from cryptomath import *
from RSAKey import *
from Python_RSAKey import Python_RSAKey
#copied from M2Crypto.util.py, so when we load the local copy of m2
#we can still use it
def password_callback(v, prompt1='Enter private key passphrase:',
prompt2='Verify passphrase:'):
from getpass import getpass
while 1:
try:
p1=getpass(prompt1)
if v:
p2=getpass(prompt2)
if p1==p2:
break
else:
break
except KeyboardInterrupt:
return None
return p1
if m2cryptoLoaded:
class OpenSSL_RSAKey(RSAKey):
def __init__(self, n=0, e=0):
self.rsa = None
self._hasPrivateKey = False
if (n and not e) or (e and not n):
raise AssertionError()
if n and e:
self.rsa = m2.rsa_new()
m2.rsa_set_n(self.rsa, numberToMPI(n))
m2.rsa_set_e(self.rsa, numberToMPI(e))
def __del__(self):
if self.rsa:
m2.rsa_free(self.rsa)
def __getattr__(self, name):
if name == 'e':
if not self.rsa:
return 0
return mpiToNumber(m2.rsa_get_e(self.rsa))
elif name == 'n':
if not self.rsa:
return 0
return mpiToNumber(m2.rsa_get_n(self.rsa))
else:
raise AttributeError
def hasPrivateKey(self):
return self._hasPrivateKey
def hash(self):
return Python_RSAKey(self.n, self.e).hash()
def _rawPrivateKeyOp(self, m):
s = numberToString(m)
byteLength = numBytes(self.n)
if len(s)== byteLength:
pass
elif len(s) == byteLength-1:
s = '\0' + s
else:
raise AssertionError()
c = stringToNumber(m2.rsa_private_encrypt(self.rsa, s,
m2.no_padding))
return c
def _rawPublicKeyOp(self, c):
s = numberToString(c)
byteLength = numBytes(self.n)
if len(s)== byteLength:
pass
elif len(s) == byteLength-1:
s = '\0' + s
else:
raise AssertionError()
m = stringToNumber(m2.rsa_public_decrypt(self.rsa, s,
m2.no_padding))
return m
def acceptsPassword(self): return True
def write(self, password=None):
bio = m2.bio_new(m2.bio_s_mem())
if self._hasPrivateKey:
if password:
def f(v): return password
m2.rsa_write_key(self.rsa, bio, m2.des_ede_cbc(), f)
else:
def f(): pass
m2.rsa_write_key_no_cipher(self.rsa, bio, f)
else:
if password:
raise AssertionError()
m2.rsa_write_pub_key(self.rsa, bio)
s = m2.bio_read(bio, m2.bio_ctrl_pending(bio))
m2.bio_free(bio)
return s
def writeXMLPublicKey(self, indent=''):
return Python_RSAKey(self.n, self.e).write(indent)
def generate(bits):
key = OpenSSL_RSAKey()
def f():pass
key.rsa = m2.rsa_generate_key(bits, 3, f)
key._hasPrivateKey = True
return key
generate = staticmethod(generate)
def parse(s, passwordCallback=None):
if s.startswith("-----BEGIN "):
if passwordCallback==None:
callback = password_callback
else:
def f(v, prompt1=None, prompt2=None):
return passwordCallback()
callback = f
bio = m2.bio_new(m2.bio_s_mem())
try:
m2.bio_write(bio, s)
key = OpenSSL_RSAKey()
if s.startswith("-----BEGIN RSA PRIVATE KEY-----"):
def f():pass
key.rsa = m2.rsa_read_key(bio, callback)
if key.rsa == None:
raise SyntaxError()
key._hasPrivateKey = True
elif s.startswith("-----BEGIN PUBLIC KEY-----"):
key.rsa = m2.rsa_read_pub_key(bio)
if key.rsa == None:
raise SyntaxError()
key._hasPrivateKey = False
else:
raise SyntaxError()
return key
finally:
m2.bio_free(bio)
else:
raise SyntaxError()
parse = staticmethod(parse)
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