def test_cfb_symmetric(self):
for _ in range(100):
pt = urandom(randint(0, 16 * 2))
iv = urandom(8 * 2)
ciph = GOST3412Magma(urandom(32))
ct = cfb_encrypt(ciph.encrypt, 8, pt, iv)
self.assertSequenceEqual(cfb_decrypt(ciph.encrypt, 8, ct, iv), pt)
def test_mac_applies(self):
for _ in range(100):
data = urandom(randint(0, 16 * 2))
ciph = GOST3412Magma(urandom(32))
mac(ciph.encrypt, 8, data)
class GOST3412MagmaModesTest(TestCase):
key = hexdec(
"ffeeddccbbaa99887766554433221100f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff")
ciph = GOST3412Magma(key)
plaintext = ""
plaintext += "92def06b3c130a59"
plaintext += "db54c704f8189d20"
plaintext += "4a98fb2e67a8024c"
plaintext += "8912409b17b57e41"
iv = hexdec("1234567890abcdef234567890abcdef134567890abcdef12")
def test_ecb_vectors(self):
ciphtext = ""
ciphtext += "2b073f0494f372a0"
ciphtext += "de70e715d3556e48"
ciphtext += "11d8d9e9eacfbc1e"
ciphtext += "7c68260996c67efb"
self.assertSequenceEqual(
hexenc(ecb_encrypt(self.ciph.encrypt, 8, hexdec(self.plaintext))),
ciphtext,
)
self.assertSequenceEqual(
hexenc(ecb_decrypt(self.ciph.decrypt, 8, hexdec(ciphtext))),
self.plaintext,
)
def test_ecb_symmetric(self):
for _ in range(100):
pt = pad2(urandom(randint(0, 16 * 2)), 16)
ciph = GOST3412Magma(urandom(32))
ct = ecb_encrypt(ciph.encrypt, 8, pt)
self.assertSequenceEqual(ecb_decrypt(ciph.decrypt, 8, ct), pt)
def test_ctr_vectors(self):
ciphtext = ""
ciphtext += "4e98110c97b7b93c"
ciphtext += "3e250d93d6e85d69"
ciphtext += "136d868807b2dbef"
ciphtext += "568eb680ab52a12d"
iv = self.iv[:4]
self.assertSequenceEqual(
hexenc(ctr(self.ciph.encrypt, 8, hexdec(self.plaintext), iv)),
ciphtext,
)
self.assertSequenceEqual(
hexenc(ctr(self.ciph.encrypt, 8, hexdec(ciphtext), iv)),
self.plaintext,
)
def test_ctr_symmetric(self):
for _ in range(100):
pt = urandom(randint(0, 16 * 2))
iv = urandom(4)
ciph = GOST3412Magma(urandom(32))
ct = ctr(ciph.encrypt, 8, pt, iv)
self.assertSequenceEqual(ctr(ciph.encrypt, 8, ct, iv), pt)
def test_ofb_vectors(self):
iv = self.iv[:16]
ciphtext = ""
ciphtext += "db37e0e266903c83"
ciphtext += "0d46644c1f9a089c"
ciphtext += "a0f83062430e327e"
ciphtext += "c824efb8bd4fdb05"
self.assertSequenceEqual(
hexenc(ofb(self.ciph.encrypt, 8, hexdec(self.plaintext), iv)),
ciphtext,
)
self.assertSequenceEqual(
hexenc(ofb(self.ciph.encrypt, 8, hexdec(ciphtext), iv)),
self.plaintext,
)
def test_ofb_symmetric(self):
for _ in range(100):
pt = urandom(randint(0, 16 * 2))
iv = urandom(8 * 2)
ciph = GOST3412Magma(urandom(32))
ct = ofb(ciph.encrypt, 8, pt, iv)
self.assertSequenceEqual(ofb(ciph.encrypt, 8, ct, iv), pt)
def test_cbc_vectors(self):
ciphtext = ""
ciphtext += "96d1b05eea683919"
ciphtext += "aff76129abb937b9"
ciphtext += "5058b4a1c4bc0019"
ciphtext += "20b78b1a7cd7e667"
self.assertSequenceEqual(
hexenc(
cbc_encrypt(self.ciph.encrypt, 8, hexdec(self.plaintext),
self.iv)),
ciphtext,
)
self.assertSequenceEqual(
hexenc(cbc_decrypt(self.ciph.decrypt, 8, hexdec(ciphtext),
self.iv)),
self.plaintext,
)
def test_cbc_symmetric(self):
for _ in range(100):
pt = pad2(urandom(randint(0, 16 * 2)), 16)
iv = urandom(8 * 2)
ciph = GOST3412Magma(urandom(32))
ct = cbc_encrypt(ciph.encrypt, 8, pt, iv)
self.assertSequenceEqual(cbc_decrypt(ciph.decrypt, 8, ct, iv), pt)
def test_cfb_vectors(self):
iv = self.iv[:16]
ciphtext = ""
ciphtext += "db37e0e266903c83"
ciphtext += "0d46644c1f9a089c"
ciphtext += "24bdd2035315d38b"
ciphtext += "bcc0321421075505"
self.assertSequenceEqual(
hexenc(
cfb_encrypt(self.ciph.encrypt, 8, hexdec(self.plaintext), iv)),
ciphtext,
)
self.assertSequenceEqual(
hexenc(cfb_decrypt(self.ciph.encrypt, 8, hexdec(ciphtext), iv)),
self.plaintext,
)
def test_cfb_symmetric(self):
for _ in range(100):
pt = urandom(randint(0, 16 * 2))
iv = urandom(8 * 2)
ciph = GOST3412Magma(urandom(32))
ct = cfb_encrypt(ciph.encrypt, 8, pt, iv)
self.assertSequenceEqual(cfb_decrypt(ciph.encrypt, 8, ct, iv), pt)
def test_mac_vectors(self):
k1, k2 = _mac_ks(self.ciph.encrypt, 8)
self.assertSequenceEqual(hexenc(k1), "5f459b3342521424")
self.assertSequenceEqual(hexenc(k2), "be8b366684a42848")
self.assertSequenceEqual(
hexenc(mac(self.ciph.encrypt, 8, hexdec(self.plaintext))[:4]),
"154e7210",
)
def test_mac_applies(self):
for _ in range(100):
data = urandom(randint(0, 16 * 2))
ciph = GOST3412Magma(urandom(32))
mac(ciph.encrypt, 8, data)
def test_ecb_symmetric(self):
for _ in range(100):
pt = pad2(urandom(randint(0, 16 * 2)), 16)
ciph = GOST3412Magma(urandom(32))
ct = ecb_encrypt(ciph.encrypt, 8, pt)
self.assertSequenceEqual(ecb_decrypt(ciph.decrypt, 8, ct), pt)
def test_decrypt(self):
ciph = GOST3412Magma(self.key)
self.assertSequenceEqual(ciph.decrypt(self.ciphertext), self.plaintext)