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| Current File : //compat/linux/proc/self/root/usr/local/lib/python2.5/test/test_hmac.py |
import hmac
import sha
import hashlib
import unittest
from test import test_support
class TestVectorsTestCase(unittest.TestCase):
def test_md5_vectors(self):
# Test the HMAC module against test vectors from the RFC.
def md5test(key, data, digest):
h = hmac.HMAC(key, data)
self.assertEqual(h.hexdigest().upper(), digest.upper())
md5test(chr(0x0b) * 16,
"Hi There",
"9294727A3638BB1C13F48EF8158BFC9D")
md5test("Jefe",
"what do ya want for nothing?",
"750c783e6ab0b503eaa86e310a5db738")
md5test(chr(0xAA)*16,
chr(0xDD)*50,
"56be34521d144c88dbb8c733f0e8b3f6")
md5test("".join([chr(i) for i in range(1, 26)]),
chr(0xCD) * 50,
"697eaf0aca3a3aea3a75164746ffaa79")
md5test(chr(0x0C) * 16,
"Test With Truncation",
"56461ef2342edc00f9bab995690efd4c")
md5test(chr(0xAA) * 80,
"Test Using Larger Than Block-Size Key - Hash Key First",
"6b1ab7fe4bd7bf8f0b62e6ce61b9d0cd")
md5test(chr(0xAA) * 80,
("Test Using Larger Than Block-Size Key "
"and Larger Than One Block-Size Data"),
"6f630fad67cda0ee1fb1f562db3aa53e")
def test_sha_vectors(self):
def shatest(key, data, digest):
h = hmac.HMAC(key, data, digestmod=sha)
self.assertEqual(h.hexdigest().upper(), digest.upper())
shatest(chr(0x0b) * 20,
"Hi There",
"b617318655057264e28bc0b6fb378c8ef146be00")
shatest("Jefe",
"what do ya want for nothing?",
"effcdf6ae5eb2fa2d27416d5f184df9c259a7c79")
shatest(chr(0xAA)*20,
chr(0xDD)*50,
"125d7342b9ac11cd91a39af48aa17b4f63f175d3")
shatest("".join([chr(i) for i in range(1, 26)]),
chr(0xCD) * 50,
"4c9007f4026250c6bc8414f9bf50c86c2d7235da")
shatest(chr(0x0C) * 20,
"Test With Truncation",
"4c1a03424b55e07fe7f27be1d58bb9324a9a5a04")
shatest(chr(0xAA) * 80,
"Test Using Larger Than Block-Size Key - Hash Key First",
"aa4ae5e15272d00e95705637ce8a3b55ed402112")
shatest(chr(0xAA) * 80,
("Test Using Larger Than Block-Size Key "
"and Larger Than One Block-Size Data"),
"e8e99d0f45237d786d6bbaa7965c7808bbff1a91")
def _rfc4231_test_cases(self, hashfunc):
def hmactest(key, data, hexdigests):
h = hmac.HMAC(key, data, digestmod=hashfunc)
self.assertEqual(h.hexdigest().lower(), hexdigests[hashfunc])
# 4.2. Test Case 1
hmactest(key = '\x0b'*20,
data = 'Hi There',
hexdigests = {
hashlib.sha224: '896fb1128abbdf196832107cd49df33f'
'47b4b1169912ba4f53684b22',
hashlib.sha256: 'b0344c61d8db38535ca8afceaf0bf12b'
'881dc200c9833da726e9376c2e32cff7',
hashlib.sha384: 'afd03944d84895626b0825f4ab46907f'
'15f9dadbe4101ec682aa034c7cebc59c'
'faea9ea9076ede7f4af152e8b2fa9cb6',
hashlib.sha512: '87aa7cdea5ef619d4ff0b4241a1d6cb0'
'2379f4e2ce4ec2787ad0b30545e17cde'
'daa833b7d6b8a702038b274eaea3f4e4'
'be9d914eeb61f1702e696c203a126854',
})
# 4.3. Test Case 2
hmactest(key = 'Jefe',
data = 'what do ya want for nothing?',
hexdigests = {
hashlib.sha224: 'a30e01098bc6dbbf45690f3a7e9e6d0f'
'8bbea2a39e6148008fd05e44',
hashlib.sha256: '5bdcc146bf60754e6a042426089575c7'
'5a003f089d2739839dec58b964ec3843',
hashlib.sha384: 'af45d2e376484031617f78d2b58a6b1b'
'9c7ef464f5a01b47e42ec3736322445e'
'8e2240ca5e69e2c78b3239ecfab21649',
hashlib.sha512: '164b7a7bfcf819e2e395fbe73b56e0a3'
'87bd64222e831fd610270cd7ea250554'
'9758bf75c05a994a6d034f65f8f0e6fd'
'caeab1a34d4a6b4b636e070a38bce737',
})
# 4.4. Test Case 3
hmactest(key = '\xaa'*20,
data = '\xdd'*50,
hexdigests = {
hashlib.sha224: '7fb3cb3588c6c1f6ffa9694d7d6ad264'
'9365b0c1f65d69d1ec8333ea',
hashlib.sha256: '773ea91e36800e46854db8ebd09181a7'
'2959098b3ef8c122d9635514ced565fe',
hashlib.sha384: '88062608d3e6ad8a0aa2ace014c8a86f'
'0aa635d947ac9febe83ef4e55966144b'
'2a5ab39dc13814b94e3ab6e101a34f27',
hashlib.sha512: 'fa73b0089d56a284efb0f0756c890be9'
'b1b5dbdd8ee81a3655f83e33b2279d39'
'bf3e848279a722c806b485a47e67c807'
'b946a337bee8942674278859e13292fb',
})
# 4.5. Test Case 4
hmactest(key = ''.join([chr(x) for x in xrange(0x01, 0x19+1)]),
data = '\xcd'*50,
hexdigests = {
hashlib.sha224: '6c11506874013cac6a2abc1bb382627c'
'ec6a90d86efc012de7afec5a',
hashlib.sha256: '82558a389a443c0ea4cc819899f2083a'
'85f0faa3e578f8077a2e3ff46729665b',
hashlib.sha384: '3e8a69b7783c25851933ab6290af6ca7'
'7a9981480850009cc5577c6e1f573b4e'
'6801dd23c4a7d679ccf8a386c674cffb',
hashlib.sha512: 'b0ba465637458c6990e5a8c5f61d4af7'
'e576d97ff94b872de76f8050361ee3db'
'a91ca5c11aa25eb4d679275cc5788063'
'a5f19741120c4f2de2adebeb10a298dd',
})
# 4.7. Test Case 6
hmactest(key = '\xaa'*131,
data = 'Test Using Larger Than Block-Siz'
'e Key - Hash Key First',
hexdigests = {
hashlib.sha224: '95e9a0db962095adaebe9b2d6f0dbce2'
'd499f112f2d2b7273fa6870e',
hashlib.sha256: '60e431591ee0b67f0d8a26aacbf5b77f'
'8e0bc6213728c5140546040f0ee37f54',
hashlib.sha384: '4ece084485813e9088d2c63a041bc5b4'
'4f9ef1012a2b588f3cd11f05033ac4c6'
'0c2ef6ab4030fe8296248df163f44952',
hashlib.sha512: '80b24263c7c1a3ebb71493c1dd7be8b4'
'9b46d1f41b4aeec1121b013783f8f352'
'6b56d037e05f2598bd0fd2215d6a1e52'
'95e64f73f63f0aec8b915a985d786598',
})
# 4.8. Test Case 7
hmactest(key = '\xaa'*131,
data = 'This is a test using a larger th'
'an block-size key and a larger t'
'han block-size data. The key nee'
'ds to be hashed before being use'
'd by the HMAC algorithm.',
hexdigests = {
hashlib.sha224: '3a854166ac5d9f023f54d517d0b39dbd'
'946770db9c2b95c9f6f565d1',
hashlib.sha256: '9b09ffa71b942fcb27635fbcd5b0e944'
'bfdc63644f0713938a7f51535c3a35e2',
hashlib.sha384: '6617178e941f020d351e2f254e8fd32c'
'602420feb0b8fb9adccebb82461e99c5'
'a678cc31e799176d3860e6110c46523e',
hashlib.sha512: 'e37b6a775dc87dbaa4dfa9f96e5e3ffd'
'debd71f8867289865df5a32d20cdc944'
'b6022cac3c4982b10d5eeb55c3e4de15'
'134676fb6de0446065c97440fa8c6a58',
})
def test_sha224_rfc4231(self):
self._rfc4231_test_cases(hashlib.sha224)
def test_sha256_rfc4231(self):
self._rfc4231_test_cases(hashlib.sha256)
def test_sha384_rfc4231(self):
self._rfc4231_test_cases(hashlib.sha384)
def test_sha512_rfc4231(self):
self._rfc4231_test_cases(hashlib.sha512)
class ConstructorTestCase(unittest.TestCase):
def test_normal(self):
# Standard constructor call.
failed = 0
try:
h = hmac.HMAC("key")
except:
self.fail("Standard constructor call raised exception.")
def test_withtext(self):
# Constructor call with text.
try:
h = hmac.HMAC("key", "hash this!")
except:
self.fail("Constructor call with text argument raised exception.")
def test_withmodule(self):
# Constructor call with text and digest module.
import sha
try:
h = hmac.HMAC("key", "", sha)
except:
self.fail("Constructor call with sha module raised exception.")
class SanityTestCase(unittest.TestCase):
def test_default_is_md5(self):
# Testing if HMAC defaults to MD5 algorithm.
# NOTE: this whitebox test depends on the hmac class internals
import hashlib
h = hmac.HMAC("key")
self.failUnless(h.digest_cons == hashlib.md5)
def test_exercise_all_methods(self):
# Exercising all methods once.
# This must not raise any exceptions
try:
h = hmac.HMAC("my secret key")
h.update("compute the hash of this text!")
dig = h.digest()
dig = h.hexdigest()
h2 = h.copy()
except:
self.fail("Exception raised during normal usage of HMAC class.")
class CopyTestCase(unittest.TestCase):
def test_attributes(self):
# Testing if attributes are of same type.
h1 = hmac.HMAC("key")
h2 = h1.copy()
self.failUnless(h1.digest_cons == h2.digest_cons,
"digest constructors don't match.")
self.failUnless(type(h1.inner) == type(h2.inner),
"Types of inner don't match.")
self.failUnless(type(h1.outer) == type(h2.outer),
"Types of outer don't match.")
def test_realcopy(self):
# Testing if the copy method created a real copy.
h1 = hmac.HMAC("key")
h2 = h1.copy()
# Using id() in case somebody has overridden __cmp__.
self.failUnless(id(h1) != id(h2), "No real copy of the HMAC instance.")
self.failUnless(id(h1.inner) != id(h2.inner),
"No real copy of the attribute 'inner'.")
self.failUnless(id(h1.outer) != id(h2.outer),
"No real copy of the attribute 'outer'.")
def test_equality(self):
# Testing if the copy has the same digests.
h1 = hmac.HMAC("key")
h1.update("some random text")
h2 = h1.copy()
self.failUnless(h1.digest() == h2.digest(),
"Digest of copy doesn't match original digest.")
self.failUnless(h1.hexdigest() == h2.hexdigest(),
"Hexdigest of copy doesn't match original hexdigest.")
def test_main():
test_support.run_unittest(
TestVectorsTestCase,
ConstructorTestCase,
SanityTestCase,
CopyTestCase
)
if __name__ == "__main__":
test_main()