/usr/lib/python3/dist-packages/pgpdump/test.py is in python3-pgpdump 1.4-1.
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from datetime import datetime
from itertools import repeat
import os.path
from unittest import main, TestCase
from pgpdump import AsciiData, BinaryData
from pgpdump.packet import (TAG_TYPES, SignaturePacket, PublicKeyPacket,
PublicSubkeyPacket, UserIDPacket, old_tag_length, new_tag_length,
SecretKeyPacket, SecretSubkeyPacket)
from pgpdump.utils import (PgpdumpException, crc24, get_int8, get_mpi,
get_key_id, get_int_bytes, same_key)
class UtilsTestCase(TestCase):
def test_crc24(self):
self.assertEqual(0xb704ce, crc24(bytearray(b"")))
self.assertEqual(0x21cf02, crc24(bytearray(b"123456789")))
self.assertEqual(0xe84567, crc24(repeat(0, 1024 * 1024)))
#self.assertEqual(0x03ebb7, crc24(repeat(0, 10 * 1024 * 1024)))
#self.assertEqual(0x5c0542, crc24(repeat(0, 30 * 1024 * 1024)))
# get_int2, get_int4 are tested plenty by actual code
def test_int8(self):
data = [
(0, [0x00] * 8),
(0x0a0b0c0d, (0x00, 0x00, 0x00, 0x00, 0x0a, 0x0b, 0x0c, 0x0d)),
(0x0a0b0c0d << 32, bytearray(b'\x0a\x0b\x0c\x0d\x00\x00\x00\x00')),
]
for expected, invals in data:
self.assertEqual(expected, get_int8(invals, 0))
def test_mpi(self):
data = [
(1, 3, (0x00, 0x01, 0x01)),
(511, 4, (0x00, 0x09, 0x01, 0xff)),
(65537, 5, bytearray(b'\x00\x11\x01\x00\x01')),
]
for expected, offset, invals in data:
self.assertEqual((expected, offset), get_mpi(invals, 0))
def test_key_id(self):
self.assertEqual(b"5C2E46A0F53A76ED",
get_key_id(b"\\.F\xa0\xf5:v\xed", 0))
def test_int_bytes(self):
self.assertEqual(b"\x11", get_int_bytes(17))
self.assertEqual(b"\x01\x00\x01", get_int_bytes(65537))
def test_same_key(self):
fprint = b"A5CA9D5515DC2CA73DF748CA5C2E46A0F53A76ED"
key_id = b"5C2E46A0F53A76ED"
short = b"F53A76ED"
different = b"A5CA9D55"
self.assertTrue(same_key(fprint, fprint))
self.assertTrue(same_key(fprint, key_id))
self.assertTrue(same_key(fprint, short))
self.assertTrue(same_key(key_id, fprint))
self.assertTrue(same_key(key_id, key_id))
self.assertTrue(same_key(key_id, short))
self.assertTrue(same_key(short, fprint))
self.assertTrue(same_key(short, key_id))
self.assertTrue(same_key(short, short))
self.assertFalse(same_key(fprint, different))
self.assertFalse(same_key(key_id, different))
self.assertFalse(same_key(short, different))
self.assertFalse(same_key(different, fprint))
self.assertFalse(same_key(different, key_id))
self.assertFalse(same_key(different, short))
class Helper(object):
def check_sig_packet(self, packet, length, version, typ,
creation_time, key_id, pub_alg, hash_alg):
'''Helper method for quickly verifying several fields on a signature
packet.'''
self.assertEqual(2, packet.raw)
self.assertEqual(length, packet.length)
self.assertEqual(version, packet.sig_version)
self.assertEqual(typ, packet.raw_sig_type)
self.assertEqual(creation_time, packet.raw_creation_time)
self.assertEqual(key_id, packet.key_id)
self.assertEqual(pub_alg, packet.raw_pub_algorithm)
self.assertEqual(hash_alg, packet.raw_hash_algorithm)
# test some of the lazy lookup methods
if typ == 0x18:
self.assertEqual("Subkey Binding Signature", packet.sig_type)
if pub_alg == 17:
self.assertEqual("DSA Digital Signature Algorithm",
packet.pub_algorithm)
if hash_alg == 2:
self.assertEqual("SHA1", packet.hash_algorithm)
def load_data(self, filename):
full_path = os.path.join('testdata', filename)
self.assertTrue(os.path.exists(full_path))
with open(full_path, 'rb') as fileobj:
data = fileobj.read()
return data
class ParseTestCase(TestCase, Helper):
def test_parse_empty(self):
with self.assertRaises(PgpdumpException):
BinaryData(None)
def test_parse_short(self):
with self.assertRaises(PgpdumpException):
BinaryData([0x00])
def test_parse_invalid(self):
with self.assertRaises(PgpdumpException):
BinaryData([0x00, 0x00])
def test_parse_single_sig_packet(self):
base64_sig = b"iEYEABECAAYFAk6A4a4ACgkQXC5GoPU6du1ATACgodGyQne3Rb7"\
b"/eHBMRdau1KNSgZYAoLXRWt2G2wfp7haTBjJDFXMGsIMi"
sig = base64.b64decode(base64_sig)
data = BinaryData(sig)
packets = list(data.packets())
self.assertEqual(1, len(packets))
sig_packet = packets[0]
self.assertFalse(sig_packet.new)
self.check_sig_packet(sig_packet, 70, 4, 0, 1317069230,
b"5C2E46A0F53A76ED", 17, 2)
self.assertEqual(2, len(sig_packet.subpackets))
self.assertEqual(["Signature Creation Time", "Issuer"],
[sp.name for sp in sig_packet.subpackets])
def test_parse_ascii_sig_packet(self):
asc_data = b'''
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)
iEYEABECAAYFAk6neOwACgkQXC5GoPU6du23AQCgghWjIFgBazXWIZNj4PGnkuYv
gMsAoLGOjudliDT9u0UqxN9KeJ22Jdne
=KYol
-----END PGP SIGNATURE-----'''
data = AsciiData(asc_data)
packets = list(data.packets())
self.assertEqual(1, len(packets))
sig_packet = packets[0]
self.assertFalse(sig_packet.new)
self.check_sig_packet(sig_packet, 70, 4, 0, 1319598316,
b"5C2E46A0F53A76ED", 17, 2)
self.assertEqual(2, len(sig_packet.subpackets))
def test_parse_bad_crc(self):
asc_data = b'''
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)
iEYEABECAAYFAk6neOwACgkQXC5GoPU6du23AQCgghWjIFgBazXWIZNj4PGnkuYv
gMsAoLGOjudliDT9u0UqxN9KeJ22JdnX
=KYol
-----END PGP SIGNATURE-----'''
self.assertRaises(PgpdumpException, AsciiData, asc_data)
class ParseDataTestCase(TestCase, Helper):
def test_parse_v3_sig(self):
asc_data = b'''
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.18 (GNU/Linux)
iD8DBQBPWDfGXC5GoPU6du0RAq6XAKC3TejpiBsu3pGF37Q9Id/vPzoFlwCgtwXE
E/GGdt/Cn5Rr1G933H9nwxo=
=aJ6u
-----END PGP SIGNATURE-----'''
data = AsciiData(asc_data)
packets = list(data.packets())
self.assertEqual(1, len(packets))
sig_packet = packets[0]
self.assertFalse(sig_packet.new)
self.check_sig_packet(sig_packet, 63, 3, 0, 1331181510,
b"5C2E46A0F53A76ED", 17, 2)
self.assertEqual(b'\xae\x97', sig_packet.hash2)
self.assertEqual(0, len(sig_packet.subpackets))
def test_parse_ascii_clearsign(self):
'''This is a clearsigned document with an expiring signature, so tests
both the ignore pattern in AsciiData as well as additional signature
subpackets.'''
asc_data = self.load_data('README.asc')
data = AsciiData(asc_data)
packets = list(data.packets())
self.assertEqual(1, len(packets))
sig_packet = packets[0]
self.assertFalse(sig_packet.new)
self.assertEqual(3, len(sig_packet.subpackets))
self.check_sig_packet(sig_packet, 76, 4, 1, 1332874080,
b"5C2E46A0F53A76ED", 17, 2)
# raw expires time is in seconds from creation date
self.assertEqual(345600, sig_packet.raw_expiration_time)
expires = datetime(2012, 3, 31, 18, 48, 00)
self.assertEqual(expires, sig_packet.expiration_time)
def test_parse_linus_binary(self):
rawdata = self.load_data('linus.gpg')
data = BinaryData(rawdata)
packets = list(data.packets())
self.assertEqual(44, len(packets))
seen = 0
for packet in packets:
# all 44 packets are of the known 'old' variety
self.assertFalse(packet.new)
if isinstance(packet, SignaturePacket):
# a random signature plucked off the key
if packet.key_id == b"E7BFC8EC95861109":
seen += 1
self.check_sig_packet(packet, 540, 4, 0x10, 1319560576,
b"E7BFC8EC95861109", 1, 8)
self.assertEqual(2, len(packet.subpackets))
# a particularly dastardly sig- a ton of hashed sub parts,
# this is the "positive certification packet"
elif packet.key_id == b"79BE3E4300411886" and \
packet.raw_sig_type == 0x13:
seen += 1
self.check_sig_packet(packet, 312, 4, 0x13, 1316554898,
b"79BE3E4300411886", 1, 2)
self.assertEqual(8, len(packet.subpackets))
# another sig from key above, the "subkey binding sig"
elif packet.key_id == b"79BE3E4300411886" and \
packet.raw_sig_type == 0x18:
seen += 1
self.check_sig_packet(packet, 287, 4, 0x18, 1316554898,
b"79BE3E4300411886", 1, 2)
self.assertEqual(3, len(packet.subpackets))
elif isinstance(packet, PublicSubkeyPacket):
seen += 1
self.assertEqual(4, packet.pubkey_version)
self.assertEqual(1316554898, packet.raw_creation_time)
self.assertEqual(1, packet.raw_pub_algorithm)
self.assertIsNotNone(packet.modulus)
self.assertEqual(65537, packet.exponent)
self.assertEqual(b"012F54CA", packet.fingerprint[32:])
elif isinstance(packet, PublicKeyPacket):
seen += 1
self.assertEqual(4, packet.pubkey_version)
self.assertEqual(1316554898, packet.raw_creation_time)
self.assertEqual(1, packet.raw_pub_algorithm)
self.assertEqual("RSA Encrypt or Sign", packet.pub_algorithm)
self.assertIsNotNone(packet.modulus)
self.assertEqual(65537, packet.exponent)
self.assertEqual(b"ABAF11C65A2970B130ABE3C479BE3E4300411886",
packet.fingerprint)
self.assertEqual(b"79BE3E4300411886", packet.key_id)
elif isinstance(packet, UserIDPacket):
seen += 1
self.assertEqual("Linus Torvalds", packet.user_name)
self.assertEqual("torvalds@linux-foundation.org",
packet.user_email)
self.assertEqual(6, seen)
def test_parse_linus_ascii(self):
rawdata = self.load_data('linus.asc')
data = AsciiData(rawdata)
packets = list(data.packets())
self.assertEqual(44, len(packets))
# Note: we could do all the checks we did above in the binary version,
# but this is really only trying to test the AsciiData extras, not the
# full stack.
def test_parse_dan(self):
'''This key has DSA and ElGamal keys, which Linus' does not have.'''
rawdata = self.load_data('dan.gpg')
data = BinaryData(rawdata)
packets = list(data.packets())
self.assertEqual(9, len(packets))
# 3 user ID packets
self.assertEqual(3, sum(1 for p in packets if p.raw == 13))
# 4 signature packets
self.assertEqual(4, sum(1 for p in packets if p.raw == 2))
seen = 0
for packet in packets:
self.assertFalse(packet.new)
if isinstance(packet, PublicSubkeyPacket):
seen += 1
self.assertEqual(16, packet.raw_pub_algorithm)
self.assertEqual("elg", packet.pub_algorithm_type)
self.assertIsNotNone(packet.prime)
self.assertIsNone(packet.group_order)
self.assertIsNotNone(packet.group_gen)
self.assertIsNotNone(packet.key_value)
self.assertEqual(b"C3751D38", packet.fingerprint[32:])
elif isinstance(packet, PublicKeyPacket):
seen += 1
self.assertEqual(17, packet.raw_pub_algorithm)
self.assertEqual("dsa", packet.pub_algorithm_type)
self.assertIsNotNone(packet.prime)
self.assertIsNotNone(packet.group_order)
self.assertIsNotNone(packet.group_gen)
self.assertIsNotNone(packet.key_value)
self.assertEqual(b"A5CA9D5515DC2CA73DF748CA5C2E46A0F53A76ED",
packet.fingerprint)
self.assertEqual(2, seen)
def test_parse_junio(self):
'''This key has a single user attribute packet, which also uses the new
size format on the outer packet, which is rare.'''
rawdata = self.load_data('junio.gpg')
data = BinaryData(rawdata)
packets = list(data.packets())
self.assertEqual(13, len(packets))
# 3 user ID packets
self.assertEqual(4, sum(1 for p in packets if p.raw == 13))
# 4 signature packets
self.assertEqual(6, sum(1 for p in packets if p.raw == 2))
# 1 public subkey packet
self.assertEqual(1, sum(1 for p in packets if p.raw == 14))
# 1 user attribute packet
self.assertEqual(1, sum(1 for p in packets if p.raw == 17))
# check the user attribute packet
ua_packet = [p for p in packets if p.raw == 17][0]
self.assertEqual("jpeg", ua_packet.image_format)
self.assertEqual(1513, len(ua_packet.image_data))
def test_parse_v3_pubkeys(self):
'''Two older version 3 public keys.'''
rawdata = self.load_data('v3pubkeys.gpg')
data = BinaryData(rawdata)
packets = list(data.packets())
self.assertEqual(2, len(packets))
packet = packets[0]
self.assertTrue(isinstance(packet, PublicKeyPacket))
self.assertEqual(1, packet.raw_pub_algorithm)
self.assertEqual("rsa", packet.pub_algorithm_type)
self.assertEqual(944849149, packet.raw_creation_time)
self.assertIsNone(packet.expiration_time)
self.assertIsNotNone(packet.modulus)
self.assertIsNotNone(packet.exponent)
self.assertEqual(b"3FC0BF6B", packet.key_id)
self.assertEqual(b"7D263C88A1AB7737E31150CB4F3A211A",
packet.fingerprint)
packet = packets[1]
self.assertTrue(isinstance(packet, PublicKeyPacket))
self.assertEqual(1, packet.raw_pub_algorithm)
self.assertEqual("rsa", packet.pub_algorithm_type)
self.assertEqual(904151571, packet.raw_creation_time)
self.assertIsNone(packet.expiration_time)
self.assertIsNotNone(packet.modulus)
self.assertIsNotNone(packet.exponent)
self.assertEqual(b"3DDE776D", packet.key_id)
self.assertEqual(b"48A4F9F891F093019BC7FC532A3C5692",
packet.fingerprint)
def test_parse_v3_elgamal_pk(self):
'''Two older version 3 public keys.'''
rawdata = self.load_data('v3elgpk.asc')
data = AsciiData(rawdata)
packets = list(data.packets())
self.assertEqual(3, len(packets))
packet = packets[0]
self.assertTrue(isinstance(packet, PublicKeyPacket))
self.assertEqual(16, packet.raw_pub_algorithm)
self.assertEqual("elg", packet.pub_algorithm_type)
self.assertEqual(888716291, packet.raw_creation_time)
self.assertIsNone(packet.expiration_time)
self.assertIsNone(packet.modulus)
self.assertIsNone(packet.exponent)
self.assertIsNotNone(packet.prime)
self.assertIsNotNone(packet.group_gen)
self.assertEqual(b"FF570A03", packet.key_id)
self.assertEqual(b"7C4529FB11669ACA567BD53972000594",
packet.fingerprint)
self.assertTrue(isinstance(packets[1], UserIDPacket))
packet = packets[2]
self.assertTrue(isinstance(packet, SignaturePacket))
self.assertEqual(16, packet.raw_pub_algorithm)
self.assertEqual(888716292, packet.raw_creation_time)
class EncryptedPacketsTestCase(TestCase, Helper):
def test_parse_sessionkey_elg(self):
'''This file contains a public key and message encrypted with an
ElGamal Encrypt-Only key.'''
asc_data = self.load_data('sessionkey_elg.asc')
data = AsciiData(asc_data)
packets = list(data.packets())
self.assertEqual(2, len(packets))
session_key = packets[0]
self.assertEqual(3, session_key.session_key_version)
self.assertEqual(b"B705D3A4C3751D38", session_key.key_id)
self.assertEqual(16, session_key.raw_pub_algorithm)
self.assertEqual("ElGamal Encrypt-Only", session_key.pub_algorithm)
def test_parse_sessionkey_rsa(self):
'''This file contains a public key and message encrypted with a RSA
Encrypt or Sign key.'''
asc_data = self.load_data('sessionkey_rsa.asc')
data = AsciiData(asc_data)
packets = list(data.packets())
self.assertEqual(2, len(packets))
session_key = packets[0]
self.assertEqual(3, session_key.session_key_version)
self.assertEqual(b"1C39A7BD114BFFA5", session_key.key_id)
self.assertEqual(1, session_key.raw_pub_algorithm)
self.assertEqual("RSA Encrypt or Sign", session_key.pub_algorithm)
class PacketTestCase(TestCase):
def test_lookup_type(self):
self.assertEqual("Signature Packet", TAG_TYPES[2][0])
def test_old_tag_length(self):
data = [
((1, 2), [0xb0, 0x02]),
((1, 70), [0x88, 0x46]),
((2, 284), [0x89, 0x01, 0x1c]),
((2, 525), [0xb9, 0x02, 0x0d]),
((2, 1037), [0xb9, 0x04, 0x0d]),
((2, 1037), bytearray(b'\xb9\x04\x0d')),
((2, 5119), [0xb9, 0x13, 0xff]),
((4, 100000), [0xba, 0x00, 0x01, 0x86, 0xa0]),
]
for expected, invals in data:
self.assertEqual(expected, old_tag_length(invals, 0))
def test_new_tag_length(self):
data = [
((0, 2, False), [0x02]),
((0, 16, False), [0x10]),
((0, 100, False), [0x64]),
((0, 166, False), [0xa6]),
((0, 168, False), [0xa8]),
((1, 1723, False), [0xc5, 0xfb]),
((1, 3923, False), [0xce, 0x93]),
((1, 5119, False), [0xd3, 0x3f]),
((1, 6476, False), [0xd8, 0x8c]),
((0, 8192, True), [0xed]),
((4, 26306, False), [0xff, 0x00, 0x00, 0x66, 0xc2]),
((4, 26306, False), bytearray(b'\xff\x00\x00\x66\xc2')),
((4, 100000, False), [0xff, 0x00, 0x01, 0x86, 0xa0]),
]
for expected, invals in data:
self.assertEqual(expected, new_tag_length(invals, 0))
class SecretKeyPacketTestCase(TestCase, Helper):
def test_parse_encrypted(self):
rawdata = self.load_data('v4_secret_encrypted.gpg')
data = BinaryData(rawdata)
packets = list(data.packets())
self.assertEqual(7, len(packets))
subs_seen = 0
for packet in packets:
self.assertFalse(packet.new)
if isinstance(packet, SecretSubkeyPacket):
subs_seen += 1
if subs_seen == 1:
# elg packet
self.assertEqual("elg", packet.pub_algorithm_type)
self.assertEqual(254, packet.s2k_id)
self.assertEqual("Iterated and Salted S2K", packet.s2k_type)
self.assertEqual(
bytearray(b"\x8d\x89\xbd\xdf\x01\x0e\x22\xcd"),
packet.s2k_iv)
elif subs_seen == 2:
# rsa packet
self.assertEqual("rsa", packet.pub_algorithm_type)
self.assertEqual(254, packet.s2k_id)
self.assertEqual("Iterated and Salted S2K", packet.s2k_type)
self.assertEqual(
bytearray(b"\x09\x97\x6b\xf5\xd4\x28\x41\x1d"),
packet.s2k_iv)
elif isinstance(packet, SecretKeyPacket):
self.assertEqual("dsa", packet.pub_algorithm_type)
self.assertEqual(254, packet.s2k_id)
self.assertEqual("Iterated and Salted S2K", packet.s2k_type)
self.assertEqual("CAST5", packet.s2k_cipher)
self.assertEqual("SHA1", packet.s2k_hash)
self.assertEqual(
bytearray(b"\xc3\x87\xeb\xca\x9b\xce\xbc\x78"),
packet.s2k_iv)
def test_parse_plain(self):
'''The raw values below were extracted from the C version of pgpdump.
The hex strings it outputs were converted to base 10 by running the
following function over the hex strings:
def to_int(x):
return int(x.replace(' ', ''), 16)
'''
rawdata = self.load_data('v4_secret_plain.gpg')
data = BinaryData(rawdata)
packets = list(data.packets())
self.assertEqual(7, len(packets))
subs_seen = 0
for packet in packets:
self.assertFalse(packet.new)
if isinstance(packet, SecretSubkeyPacket):
subs_seen += 1
if subs_seen == 1:
# elg packet
self.assertEqual("elg", packet.pub_algorithm_type)
self.assertEqual(0, packet.s2k_id)
self.assertEqual(None, packet.s2k_type)
self.assertEqual(None, packet.s2k_iv)
self.assertEqual(245799026332407193298181926223748572866928987611495184689013385965880161244176879821250061522687647728, packet.exponent_x)
elif subs_seen == 2:
# rsa packet
self.assertEqual("rsa", packet.pub_algorithm_type)
self.assertEqual(0, packet.s2k_id)
self.assertEqual(None, packet.s2k_type)
self.assertEqual(None, packet.s2k_iv)
self.assertEqual(107429307998432888320715351604215972074903508478185926034856042440678824041847327442082101397552291647796540657257050768251344941490371163761048934745124363183224819621105784780195398083026664006729876758821509430352212953204518272377415915285011886868211417421097179985188014641310204357388385968166040278287, packet.multiplicative_inverse)
self.assertEqual(139930219416447408374822893460828502304441966752753468842648203646336195082149424690339775194932419616945814365656771053789999508162542355224095838373016952414720809190039261860912609841054241835835137530162417625471114503804567967161522096406622711734972153324109508774000862492521907132111400296639152885151, packet.prime_p)
self.assertEqual(141774976438365791329330227605232641244334061384594969589427240157587195987726021563323880620442249788289724672124037112182500862823754846020398652238714637523098123565121790819658975965315629614215592460191153065569430777288475743983312129144619017542854009503581558744199305796137178366407180728113362644607, packet.prime_q)
self.assertEqual(5830467418164177455383939797360032476940913805978768568081128075462505586965694225559897974113088818228809697270431492119090365699278285350171676334156873270109344274747057694689185206358606371235913423003163252354603704380371252575866102476793736443620998412227609599802054206292004785471167177881398711806191315950196087041018693839148033680564198494910540148825273531803832541184563811332315506727878483469747798396155096313345751606322830230368849084875744911041500024805242117661173352379509490605300753957220916597285056567409410296154792321206401452887335121085203916552891062930596871199021743741984622581173, packet.exponent_d)
elif isinstance(packet, SecretKeyPacket):
self.assertEqual("dsa", packet.pub_algorithm_type)
self.assertEqual(254, packet.s2k_id)
self.assertEqual("GnuPG S2K", packet.s2k_type)
self.assertEqual("CAST5", packet.s2k_cipher)
self.assertEqual("SHA1", packet.s2k_hash)
self.assertEqual(None, packet.s2k_iv)
if __name__ == '__main__':
main()
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