373 lines
12 KiB
Python
373 lines
12 KiB
Python
# ===================================================================
|
|
#
|
|
# Copyright (c) 2014, Legrandin <helderijs@gmail.com>
|
|
# All rights reserved.
|
|
#
|
|
# Redistribution and use in source and binary forms, with or without
|
|
# modification, are permitted provided that the following conditions
|
|
# are met:
|
|
#
|
|
# 1. Redistributions of source code must retain the above copyright
|
|
# notice, this list of conditions and the following disclaimer.
|
|
# 2. Redistributions in binary form must reproduce the above copyright
|
|
# notice, this list of conditions and the following disclaimer in
|
|
# the documentation and/or other materials provided with the
|
|
# distribution.
|
|
#
|
|
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
# POSSIBILITY OF SUCH DAMAGE.
|
|
# ===================================================================
|
|
|
|
import os
|
|
import re
|
|
import unittest
|
|
from binascii import unhexlify, hexlify
|
|
|
|
from Crypto.Util.py3compat import b, tobytes, bchr
|
|
from Crypto.Util.strxor import strxor_c
|
|
from Crypto.Util._file_system import pycryptodome_filename
|
|
from Crypto.SelfTest.st_common import list_test_cases
|
|
|
|
from Crypto.Hash import BLAKE2b, BLAKE2s
|
|
|
|
|
|
class Blake2Test(unittest.TestCase):
|
|
|
|
def test_new_positive(self):
|
|
|
|
h = self.BLAKE2.new(digest_bits=self.max_bits)
|
|
for new_func in self.BLAKE2.new, h.new:
|
|
|
|
for dbits in range(8, self.max_bits + 1, 8):
|
|
hobj = new_func(digest_bits=dbits)
|
|
self.assertEqual(hobj.digest_size, dbits // 8)
|
|
|
|
for dbytes in range(1, self.max_bytes + 1):
|
|
hobj = new_func(digest_bytes=dbytes)
|
|
self.assertEqual(hobj.digest_size, dbytes)
|
|
|
|
digest1 = new_func(data=b("\x90"), digest_bytes=self.max_bytes).digest()
|
|
digest2 = new_func(digest_bytes=self.max_bytes).update(b("\x90")).digest()
|
|
self.assertEqual(digest1, digest2)
|
|
|
|
new_func(data=b("A"), key=b("5"), digest_bytes=self.max_bytes)
|
|
|
|
hobj = h.new()
|
|
self.assertEqual(hobj.digest_size, self.max_bytes)
|
|
|
|
def test_new_negative(self):
|
|
|
|
self.assertRaises(TypeError, self.BLAKE2.new)
|
|
|
|
h = self.BLAKE2.new(digest_bits=self.max_bits)
|
|
for new_func in self.BLAKE2.new, h.new:
|
|
self.assertRaises(TypeError, new_func,
|
|
digest_bytes=self.max_bytes,
|
|
digest_bits=self.max_bits)
|
|
self.assertRaises(ValueError, new_func, digest_bytes=0)
|
|
self.assertRaises(ValueError, new_func,
|
|
digest_bytes=self.max_bytes + 1)
|
|
self.assertRaises(ValueError, new_func, digest_bits=7)
|
|
self.assertRaises(ValueError, new_func, digest_bits=15)
|
|
self.assertRaises(ValueError, new_func,
|
|
digest_bits=self.max_bits + 1)
|
|
self.assertRaises(TypeError, new_func,
|
|
digest_bytes=self.max_bytes,
|
|
key="string")
|
|
self.assertRaises(TypeError, new_func,
|
|
digest_bytes=self.max_bytes,
|
|
data="string")
|
|
|
|
def test_update(self):
|
|
pieces = [bchr(10) * 200, bchr(20) * 300]
|
|
h = self.BLAKE2.new(digest_bytes=self.max_bytes)
|
|
h.update(pieces[0]).update(pieces[1])
|
|
digest = h.digest()
|
|
h = self.BLAKE2.new(digest_bytes=self.max_bytes)
|
|
h.update(pieces[0] + pieces[1])
|
|
self.assertEqual(h.digest(), digest)
|
|
|
|
def test_update_negative(self):
|
|
h = self.BLAKE2.new(digest_bytes=self.max_bytes)
|
|
self.assertRaises(TypeError, h.update, "string")
|
|
|
|
def test_digest(self):
|
|
h = self.BLAKE2.new(digest_bytes=self.max_bytes)
|
|
digest = h.digest()
|
|
|
|
# hexdigest does not change the state
|
|
self.assertEqual(h.digest(), digest)
|
|
# digest returns a byte string
|
|
self.assertTrue(isinstance(digest, type(b("digest"))))
|
|
|
|
def test_update_after_digest(self):
|
|
msg=b("rrrrttt")
|
|
|
|
#import pdb; pdb.set_trace()
|
|
|
|
# Normally, update() cannot be done after digest()
|
|
h = self.BLAKE2.new(digest_bits=256, data=msg[:4])
|
|
dig1 = h.digest()
|
|
self.assertRaises(TypeError, h.update, msg[4:])
|
|
dig2 = self.BLAKE2.new(digest_bits=256, data=msg).digest()
|
|
|
|
# With the proper flag, it is allowed
|
|
h = self.BLAKE2.new(digest_bits=256, data=msg[:4], update_after_digest=True)
|
|
self.assertEqual(h.digest(), dig1)
|
|
# ... and the subsequent digest applies to the entire message
|
|
# up to that point
|
|
h.update(msg[4:])
|
|
self.assertEqual(h.digest(), dig2)
|
|
|
|
def test_hex_digest(self):
|
|
mac = self.BLAKE2.new(digest_bits=self.max_bits)
|
|
digest = mac.digest()
|
|
hexdigest = mac.hexdigest()
|
|
|
|
# hexdigest is equivalent to digest
|
|
self.assertEqual(hexlify(digest), tobytes(hexdigest))
|
|
# hexdigest does not change the state
|
|
self.assertEqual(mac.hexdigest(), hexdigest)
|
|
# hexdigest returns a string
|
|
self.assertTrue(isinstance(hexdigest, type("digest")))
|
|
|
|
def test_verify(self):
|
|
h = self.BLAKE2.new(digest_bytes=self.max_bytes, key=b("4"))
|
|
mac = h.digest()
|
|
h.verify(mac)
|
|
wrong_mac = strxor_c(mac, 255)
|
|
self.assertRaises(ValueError, h.verify, wrong_mac)
|
|
|
|
def test_hexverify(self):
|
|
h = self.BLAKE2.new(digest_bytes=self.max_bytes, key=b("4"))
|
|
mac = h.hexdigest()
|
|
h.hexverify(mac)
|
|
self.assertRaises(ValueError, h.hexverify, "4556")
|
|
|
|
def test_oid(self):
|
|
|
|
prefix = "1.3.6.1.4.1.1722.12.2." + self.oid_variant + "."
|
|
|
|
for digest_bits in self.digest_bits_oid:
|
|
h = self.BLAKE2.new(digest_bits=digest_bits)
|
|
self.assertEqual(h.oid, prefix + str(digest_bits // 8))
|
|
|
|
h = self.BLAKE2.new(digest_bits=digest_bits, key=b("secret"))
|
|
self.assertRaises(AttributeError, lambda: h.oid)
|
|
|
|
for digest_bits in (8, self.max_bits):
|
|
if digest_bits in self.digest_bits_oid:
|
|
continue
|
|
self.assertRaises(AttributeError, lambda: h.oid)
|
|
|
|
|
|
class Blake2bTest(Blake2Test):
|
|
#: Module
|
|
BLAKE2 = BLAKE2b
|
|
#: Max output size (in bits)
|
|
max_bits = 512
|
|
#: Max output size (in bytes)
|
|
max_bytes = 64
|
|
#: Bit size of the digests for which an ASN OID exists
|
|
digest_bits_oid = (160, 256, 384, 512)
|
|
# http://tools.ietf.org/html/draft-saarinen-blake2-02
|
|
oid_variant = "1"
|
|
|
|
|
|
class Blake2sTest(Blake2Test):
|
|
#: Module
|
|
BLAKE2 = BLAKE2s
|
|
#: Max output size (in bits)
|
|
max_bits = 256
|
|
#: Max output size (in bytes)
|
|
max_bytes = 32
|
|
#: Bit size of the digests for which an ASN OID exists
|
|
digest_bits_oid = (128, 160, 224, 256)
|
|
# http://tools.ietf.org/html/draft-saarinen-blake2-02
|
|
oid_variant = "2"
|
|
|
|
|
|
class Blake2OfficialTestVector(unittest.TestCase):
|
|
|
|
def setUp(self):
|
|
|
|
test_vector_file = pycryptodome_filename(
|
|
("Crypto", "SelfTest", "Hash", "test_vectors", self.name),
|
|
self.name.lower() + "-test.txt")
|
|
|
|
expected = "in"
|
|
self.test_vectors = []
|
|
for line_number, line in enumerate(open(test_vector_file, "rt")):
|
|
|
|
if line.strip() == "" or line.startswith("#"):
|
|
continue
|
|
|
|
res = re.match("%s:\t([0-9A-Fa-f]*)" % expected, line)
|
|
if not res:
|
|
raise ValueError("Incorrect test vector format (line %d)"
|
|
% line_number)
|
|
|
|
if res.group(1):
|
|
bin_value = unhexlify(tobytes(res.group(1)))
|
|
else:
|
|
bin_value = b("")
|
|
if expected == "in":
|
|
input_data = bin_value
|
|
expected = "key"
|
|
elif expected == "key":
|
|
key = bin_value
|
|
expected = "hash"
|
|
else:
|
|
result = bin_value
|
|
expected = "in"
|
|
self.test_vectors.append((input_data, key, result))
|
|
|
|
def runTest(self):
|
|
for (input_data, key, result) in self.test_vectors:
|
|
mac = self.BLAKE2.new(key=key, digest_bytes=self.max_bytes)
|
|
mac.update(input_data)
|
|
self.assertEqual(mac.digest(), result)
|
|
|
|
|
|
class Blake2bOfficialTestVector(Blake2OfficialTestVector):
|
|
#: Module
|
|
BLAKE2 = BLAKE2b
|
|
#: Hash name
|
|
name = "BLAKE2b"
|
|
#: Max digest size
|
|
max_bytes = 64
|
|
|
|
|
|
class Blake2sOfficialTestVector(Blake2OfficialTestVector):
|
|
#: Module
|
|
BLAKE2 = BLAKE2s
|
|
#: Hash name
|
|
name = "BLAKE2s"
|
|
#: Max digest size
|
|
max_bytes = 32
|
|
|
|
|
|
class Blake2TestVector1(unittest.TestCase):
|
|
|
|
def setUp(self):
|
|
test_vector_file = pycryptodome_filename(
|
|
("Crypto", "SelfTest", "Hash", "test_vectors", self.name),
|
|
"tv1.txt")
|
|
|
|
self.test_vectors = []
|
|
for line_number, line in enumerate(open(test_vector_file, "rt")):
|
|
if line.strip() == "" or line.startswith("#"):
|
|
continue
|
|
res = re.match("digest: ([0-9A-Fa-f]*)", line)
|
|
if not res:
|
|
raise ValueError("Incorrect test vector format (line %d)"
|
|
% line_number)
|
|
|
|
self.test_vectors.append(unhexlify(tobytes(res.group(1))))
|
|
|
|
def runTest(self):
|
|
|
|
for tv in self.test_vectors:
|
|
digest_bytes = len(tv)
|
|
next_data = b("")
|
|
for _ in range(100):
|
|
h = self.BLAKE2.new(digest_bytes=digest_bytes)
|
|
h.update(next_data)
|
|
next_data = h.digest() + next_data
|
|
self.assertEqual(h.digest(), tv)
|
|
|
|
|
|
class Blake2bTestVector1(Blake2TestVector1):
|
|
#: Module
|
|
BLAKE2 = BLAKE2b
|
|
#: Hash name
|
|
name = "BLAKE2b"
|
|
|
|
|
|
class Blake2sTestVector1(Blake2TestVector1):
|
|
#: Module
|
|
BLAKE2 = BLAKE2s
|
|
#: Hash name
|
|
name = "BLAKE2s"
|
|
|
|
|
|
class Blake2TestVector2(unittest.TestCase):
|
|
|
|
def setUp(self):
|
|
test_vector_file = pycryptodome_filename(
|
|
("Crypto", "SelfTest", "Hash", "test_vectors", self.name),
|
|
"tv2.txt")
|
|
|
|
self.test_vectors = []
|
|
for line_number, line in enumerate(open(test_vector_file, "rt")):
|
|
if line.strip() == "" or line.startswith("#"):
|
|
continue
|
|
res = re.match("digest\(([0-9]+)\): ([0-9A-Fa-f]*)", line)
|
|
if not res:
|
|
raise ValueError("Incorrect test vector format (line %d)"
|
|
% line_number)
|
|
|
|
key_size = int(res.group(1))
|
|
result = unhexlify(tobytes(res.group(2)))
|
|
self.test_vectors.append((key_size, result))
|
|
|
|
def runTest(self):
|
|
|
|
for key_size, result in self.test_vectors:
|
|
next_data = b("")
|
|
for _ in range(100):
|
|
h = self.BLAKE2.new(digest_bytes=self.max_bytes,
|
|
key=b("A" * key_size))
|
|
h.update(next_data)
|
|
next_data = h.digest() + next_data
|
|
self.assertEqual(h.digest(), result)
|
|
|
|
|
|
class Blake2bTestVector2(Blake2TestVector1):
|
|
#: Module
|
|
BLAKE2 = BLAKE2b
|
|
#: Hash name
|
|
name = "BLAKE2b"
|
|
#: Max digest size in bytes
|
|
max_bytes = 64
|
|
|
|
|
|
class Blake2sTestVector2(Blake2TestVector1):
|
|
#: Module
|
|
BLAKE2 = BLAKE2s
|
|
#: Hash name
|
|
name = "BLAKE2s"
|
|
#: Max digest size in bytes
|
|
max_bytes = 32
|
|
|
|
|
|
def get_tests(config={}):
|
|
tests = []
|
|
|
|
tests += list_test_cases(Blake2bTest)
|
|
tests.append(Blake2bOfficialTestVector())
|
|
tests.append(Blake2bTestVector1())
|
|
tests.append(Blake2bTestVector2())
|
|
|
|
tests += list_test_cases(Blake2sTest)
|
|
tests.append(Blake2sOfficialTestVector())
|
|
tests.append(Blake2sTestVector1())
|
|
tests.append(Blake2sTestVector2())
|
|
|
|
return tests
|
|
|
|
|
|
if __name__ == '__main__':
|
|
import unittest
|
|
suite = lambda: unittest.TestSuite(get_tests())
|
|
unittest.main(defaultTest='suite')
|