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# Copyright (C) 2003-2009 Robey Pointer <robeypointer@gmail.com>
#
# This file is part of paramiko.
#
# Paramiko is free software; you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Paramiko; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
"""
Some unit tests for public/private key objects.
"""
import unittest
import os
from binascii import hexlify
from hashlib import md5
from paramiko import RSAKey, DSSKey, ECDSAKey, Message, util
from paramiko.py3compat import StringIO, byte_chr, b, bytes
from tests.util import test_path
# from openssh's ssh-keygen
PUB_RSA = 'ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAIEA049W6geFpmsljTwfvI1UmKWWJPNFI74+vNKTk4dmzkQY2yAMs6FhlvhlI8ysU4oj71ZsRYMecHbBbxdN79+JRFVYTKaLqjwGENeTd+yv4q+V2PvZv3fLnzApI3l7EJCqhWwJUHJ1jAkZzqDx0tyOL4uoZpww3nmE0kb3y21tH4c='
PUB_DSS = 'ssh-dss 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'
PUB_ECDSA = 'ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBJSPZm3ZWkvk/Zx8WP+fZRZ5/NBBHnGQwR6uIC6XHGPDIHuWUzIjAwA0bzqkOUffEsbLe+uQgKl5kbc/L8KA/eo='
FINGER_RSA = '1024 60:73:38:44:cb:51:86:65:7f:de:da:a2:2b:5a:57:d5'
FINGER_DSS = '1024 44:78:f0:b9:a2:3c:c5:18:20:09:ff:75:5b:c1:d2:6c'
FINGER_ECDSA = '256 25:19:eb:55:e6:a1:47:ff:4f:38:d2:75:6f:a5:d5:60'
SIGNED_RSA = '20:d7:8a:31:21:cb:f7:92:12:f2:a4:89:37:f5:78:af:e6:16:b6:25:b9:97:3d:a2:cd:5f:ca:20:21:73:4c:ad:34:73:8f:20:77:28:e2:94:15:08:d8:91:40:7a:85:83:bf:18:37:95:dc:54:1a:9b:88:29:6c:73:ca:38:b4:04:f1:56:b9:f2:42:9d:52:1b:29:29:b4:4f:fd:c9:2d:af:47:d2:40:76:30:f3:63:45:0c:d9:1d:43:86:0f:1c:70:e2:93:12:34:f3:ac:c5:0a:2f:14:50:66:59:f1:88:ee:c1:4a:e9:d1:9c:4e:46:f0:0e:47:6f:38:74:f1:44:a8'
RSA_PRIVATE_OUT = """\
-----BEGIN RSA PRIVATE KEY-----
MIICWgIBAAKBgQDTj1bqB4WmayWNPB+8jVSYpZYk80Ujvj680pOTh2bORBjbIAyz
oWGW+GUjzKxTiiPvVmxFgx5wdsFvF03v34lEVVhMpouqPAYQ15N37K/ir5XY+9m/
d8ufMCkjeXsQkKqFbAlQcnWMCRnOoPHS3I4vi6hmnDDeeYTSRvfLbW0fhwIBIwKB
gBIiOqZYaoqbeD9OS9z2K9KR2atlTxGxOJPXiP4ESqP3NVScWNwyZ3NXHpyrJLa0
EbVtzsQhLn6rF+TzXnOlcipFvjsem3iYzCpuChfGQ6SovTcOjHV9z+hnpXvQ/fon
soVRZY65wKnF7IAoUwTmJS9opqgrN6kRgCd3DASAMd1bAkEA96SBVWFt/fJBNJ9H
tYnBKZGw0VeHOYmVYbvMSstssn8un+pQpUm9vlG/bp7Oxd/m+b9KWEh2xPfv6zqU
avNwHwJBANqzGZa/EpzF4J8pGti7oIAPUIDGMtfIcmqNXVMckrmzQ2vTfqtkEZsA
4rE1IERRyiJQx6EJsz21wJmGV9WJQ5kCQQDwkS0uXqVdFzgHO6S++tjmjYcxwr3g
H0CoFYSgbddOT6miqRskOQF3DZVkJT3kyuBgU2zKygz52ukQZMqxCb1fAkASvuTv
qfpH87Qq5kQhNKdbbwbmd2NxlNabazPijWuphGTdW0VfJdWfklyS2Kr+iqrs/5wV
HhathJt636Eg7oIjAkA8ht3MQ+XSl9yIJIS8gVpbPxSw5OMfw0PjVE7tBdQruiSc
nvuQES5C9BMHjF39LZiGH1iLQy7FgdHyoP+eodI7
-----END RSA PRIVATE KEY-----
"""
DSS_PRIVATE_OUT = """\
-----BEGIN DSA PRIVATE KEY-----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-----END DSA PRIVATE KEY-----
"""
ECDSA_PRIVATE_OUT = """\
-----BEGIN EC PRIVATE KEY-----
MHcCAQEEIKB6ty3yVyKEnfF/zprx0qwC76MsMlHY4HXCnqho2eKioAoGCCqGSM49
AwEHoUQDQgAElI9mbdlaS+T9nHxY/59lFnn80EEecZDBHq4gLpccY8Mge5ZTMiMD
ADRvOqQ5R98Sxst765CAqXmRtz8vwoD96g==
-----END EC PRIVATE KEY-----
"""
x1234 = b'\x01\x02\x03\x04'
class KeyTest (unittest.TestCase):
def setUp(self):
pass
def tearDown(self):
pass
def test_1_generate_key_bytes(self):
key = util.generate_key_bytes(md5, x1234, 'happy birthday', 30)
exp = b'\x61\xE1\xF2\x72\xF4\xC1\xC4\x56\x15\x86\xBD\x32\x24\x98\xC0\xE9\x24\x67\x27\x80\xF4\x7B\xB3\x7D\xDA\x7D\x54\x01\x9E\x64'
self.assertEqual(exp, key)
def test_2_load_rsa(self):
key = RSAKey.from_private_key_file(test_path('test_rsa.key'))
self.assertEqual('ssh-rsa', key.get_name())
exp_rsa = b(FINGER_RSA.split()[1].replace(':', ''))
my_rsa = hexlify(key.get_fingerprint())
self.assertEqual(exp_rsa, my_rsa)
self.assertEqual(PUB_RSA.split()[1], key.get_base64())
self.assertEqual(1024, key.get_bits())
s = StringIO()
key.write_private_key(s)
self.assertEqual(RSA_PRIVATE_OUT, s.getvalue())
s.seek(0)
key2 = RSAKey.from_private_key(s)
self.assertEqual(key, key2)
def test_3_load_rsa_password(self):
key = RSAKey.from_private_key_file(test_path('test_rsa_password.key'), 'television')
self.assertEqual('ssh-rsa', key.get_name())
exp_rsa = b(FINGER_RSA.split()[1].replace(':', ''))
my_rsa = hexlify(key.get_fingerprint())
self.assertEqual(exp_rsa, my_rsa)
self.assertEqual(PUB_RSA.split()[1], key.get_base64())
self.assertEqual(1024, key.get_bits())
def test_4_load_dss(self):
key = DSSKey.from_private_key_file(test_path('test_dss.key'))
self.assertEqual('ssh-dss', key.get_name())
exp_dss = b(FINGER_DSS.split()[1].replace(':', ''))
my_dss = hexlify(key.get_fingerprint())
self.assertEqual(exp_dss, my_dss)
self.assertEqual(PUB_DSS.split()[1], key.get_base64())
self.assertEqual(1024, key.get_bits())
s = StringIO()
key.write_private_key(s)
self.assertEqual(DSS_PRIVATE_OUT, s.getvalue())
s.seek(0)
key2 = DSSKey.from_private_key(s)
self.assertEqual(key, key2)
def test_5_load_dss_password(self):
key = DSSKey.from_private_key_file(test_path('test_dss_password.key'), 'television')
self.assertEqual('ssh-dss', key.get_name())
exp_dss = b(FINGER_DSS.split()[1].replace(':', ''))
my_dss = hexlify(key.get_fingerprint())
self.assertEqual(exp_dss, my_dss)
self.assertEqual(PUB_DSS.split()[1], key.get_base64())
self.assertEqual(1024, key.get_bits())
def test_6_compare_rsa(self):
# verify that the private & public keys compare equal
key = RSAKey.from_private_key_file(test_path('test_rsa.key'))
self.assertEqual(key, key)
pub = RSAKey(data=key.asbytes())
self.assertTrue(key.can_sign())
self.assertTrue(not pub.can_sign())
self.assertEqual(key, pub)
def test_7_compare_dss(self):
# verify that the private & public keys compare equal
key = DSSKey.from_private_key_file(test_path('test_dss.key'))
self.assertEqual(key, key)
pub = DSSKey(data=key.asbytes())
self.assertTrue(key.can_sign())
self.assertTrue(not pub.can_sign())
self.assertEqual(key, pub)
def test_8_sign_rsa(self):
# verify that the rsa private key can sign and verify
key = RSAKey.from_private_key_file(test_path('test_rsa.key'))
msg = key.sign_ssh_data(b'ice weasels')
self.assertTrue(type(msg) is Message)
msg.rewind()
self.assertEqual('ssh-rsa', msg.get_text())
sig = bytes().join([byte_chr(int(x, 16)) for x in SIGNED_RSA.split(':')])
self.assertEqual(sig, msg.get_binary())
msg.rewind()
pub = RSAKey(data=key.asbytes())
self.assertTrue(pub.verify_ssh_sig(b'ice weasels', msg))
def test_9_sign_dss(self):
# verify that the dss private key can sign and verify
key = DSSKey.from_private_key_file(test_path('test_dss.key'))
msg = key.sign_ssh_data(b'ice weasels')
self.assertTrue(type(msg) is Message)
msg.rewind()
self.assertEqual('ssh-dss', msg.get_text())
# can't do the same test as we do for RSA, because DSS signatures
# are usually different each time. but we can test verification
# anyway so it's ok.
self.assertEqual(40, len(msg.get_binary()))
msg.rewind()
pub = DSSKey(data=key.asbytes())
self.assertTrue(pub.verify_ssh_sig(b'ice weasels', msg))
def test_A_generate_rsa(self):
key = RSAKey.generate(1024)
msg = key.sign_ssh_data(b'jerri blank')
msg.rewind()
self.assertTrue(key.verify_ssh_sig(b'jerri blank', msg))
def test_B_generate_dss(self):
key = DSSKey.generate(1024)
msg = key.sign_ssh_data(b'jerri blank')
msg.rewind()
self.assertTrue(key.verify_ssh_sig(b'jerri blank', msg))
def test_10_load_ecdsa(self):
key = ECDSAKey.from_private_key_file(test_path('test_ecdsa.key'))
self.assertEqual('ecdsa-sha2-nistp256', key.get_name())
exp_ecdsa = b(FINGER_ECDSA.split()[1].replace(':', ''))
my_ecdsa = hexlify(key.get_fingerprint())
self.assertEqual(exp_ecdsa, my_ecdsa)
self.assertEqual(PUB_ECDSA.split()[1], key.get_base64())
self.assertEqual(256, key.get_bits())
s = StringIO()
key.write_private_key(s)
self.assertEqual(ECDSA_PRIVATE_OUT, s.getvalue())
s.seek(0)
key2 = ECDSAKey.from_private_key(s)
self.assertEqual(key, key2)
def test_11_load_ecdsa_password(self):
key = ECDSAKey.from_private_key_file(test_path('test_ecdsa_password.key'), b'television')
self.assertEqual('ecdsa-sha2-nistp256', key.get_name())
exp_ecdsa = b(FINGER_ECDSA.split()[1].replace(':', ''))
my_ecdsa = hexlify(key.get_fingerprint())
self.assertEqual(exp_ecdsa, my_ecdsa)
self.assertEqual(PUB_ECDSA.split()[1], key.get_base64())
self.assertEqual(256, key.get_bits())
def test_12_compare_ecdsa(self):
# verify that the private & public keys compare equal
key = ECDSAKey.from_private_key_file(test_path('test_ecdsa.key'))
self.assertEqual(key, key)
pub = ECDSAKey(data=key.asbytes())
self.assertTrue(key.can_sign())
self.assertTrue(not pub.can_sign())
self.assertEqual(key, pub)
def test_13_sign_ecdsa(self):
# verify that the rsa private key can sign and verify
key = ECDSAKey.from_private_key_file(test_path('test_ecdsa.key'))
msg = key.sign_ssh_data(b'ice weasels')
self.assertTrue(type(msg) is Message)
msg.rewind()
self.assertEqual('ecdsa-sha2-nistp256', msg.get_text())
# ECDSA signatures, like DSS signatures, tend to be different
# each time, so we can't compare against a "known correct"
# signature.
# Even the length of the signature can change.
msg.rewind()
pub = ECDSAKey(data=key.asbytes())
self.assertTrue(pub.verify_ssh_sig(b'ice weasels', msg))
def test_salt_size(self):
# Read an existing encrypted private key
file_ = test_path('test_rsa_password.key')
password = 'television'
newfile = file_ + '.new'
newpassword = 'radio'
key = RSAKey(filename=file_, password=password)
# Write out a newly re-encrypted copy with a new password.
# When the bug under test exists, this will ValueError.
try:
key.write_private_key_file(newfile, password=newpassword)
# Verify the inner key data still matches (when no ValueError)
key2 = RSAKey(filename=newfile, password=newpassword)
self.assertEqual(key, key2)
finally:
os.remove(newfile)
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