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GCM loader support

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This commit is contained in:
Paul Kehrer 2013-11-12 15:35:49 -06:00
parent 5e981fc4ba
commit a43b669725
2 changed files with 135 additions and 1 deletions
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130
tests/test_utils.py
View file

@ -268,3 +268,133 @@ def test_load_vectors_from_file():
),
}
]
def test_load_nist_gcm_vectors():
vector_data = textwrap.dedent("""
[Keylen = 128]
[IVlen = 96]
[PTlen = 0]
[AADlen = 0]
[Taglen = 128]
Count = 0
Key = 11754cd72aec309bf52f7687212e8957
IV = 3c819d9a9bed087615030b65
PT =
AAD =
CT =
Tag = 250327c674aaf477aef2675748cf6971
Count = 1
Key = 272f16edb81a7abbea887357a58c1917
IV = 794ec588176c703d3d2a7a07
PT =
AAD =
CT =
Tag = b6e6f197168f5049aeda32dafbdaeb
Count = 2
Key = a49a5e26a2f8cb63d05546c2a62f5343
IV = 907763b19b9b4ab6bd4f0281
CT =
AAD =
Tag = a2be08210d8c470a8df6e8fbd79ec5cf
FAIL
Count = 3
Key = 5c1155084cc0ede76b3bc22e9f7574ef
IV = 9549e4ba69a61cad7856efc1
PT = d1448fa852b84408e2dad8381f363de7
AAD = e98e9d9c618e46fef32660976f854ee3
CT = f78b60ca125218493bea1c50a2e12ef4
Tag = d72da7f5c6cf0bca7242c71835809449
[Keylen = 128]
[IVlen = 96]
[PTlen = 0]
[AADlen = 0]
[Taglen = 120]
Count = 0
Key = eac258e99c55e6ae8ef1da26640613d7
IV = 4e8df20faaf2c8eebe922902
CT =
AAD =
Tag = e39aeaebe86aa309a4d062d6274339
PT =
Count = 1
Key = 3726cf02fcc6b8639a5497652c94350d
IV = 55fef82cde693ce76efcc193
CT =
AAD =
Tag = 3d68111a81ed22d2ef5bccac4fc27f
FAIL
Count = 2
Key = f202299d5fd74f03b12d2119a6c4c038
IV = eec51e7958c3f20a1bb71815
CT =
AAD =
Tag = a81886b3fb26e51fca87b267e1e157
FAIL
Count = 3
Key = fd52925f39546b4c55ffb6b20c59898c
IV = f5cf3227444afd905a5f6dba
CT =
AAD =
Tag = 1665b0f1a0b456e1664cfd3de08ccd
PT =
""").splitlines()
assert load_nist_vectors(vector_data) == [
{'aad': b'',
'pt': b'',
'iv': b'4e8df20faaf2c8eebe922902',
'tag': b'e39aeaebe86aa309a4d062d6274339',
'key': b'eac258e99c55e6ae8ef1da26640613d7',
'ct': b''},
{'aad': b'',
'iv': b'55fef82cde693ce76efcc193',
'tag': b'3d68111a81ed22d2ef5bccac4fc27f',
'key': b'3726cf02fcc6b8639a5497652c94350d',
'ct': b'',
'fail': True},
{'aad': b'',
'iv': b'eec51e7958c3f20a1bb71815',
'tag': b'a81886b3fb26e51fca87b267e1e157',
'key': b'f202299d5fd74f03b12d2119a6c4c038',
'ct': b'',
'fail': True},
{'aad': b'',
'pt': b'',
'iv': b'f5cf3227444afd905a5f6dba',
'tag': b'1665b0f1a0b456e1664cfd3de08ccd',
'key': b'fd52925f39546b4c55ffb6b20c59898c',
'ct': b''},
{'aad': b'',
'pt': b'',
'iv': b'3c819d9a9bed087615030b65',
'tag': b'250327c674aaf477aef2675748cf6971',
'key': b'11754cd72aec309bf52f7687212e8957',
'ct': b''},
{'aad': b'',
'pt': b'',
'iv': b'794ec588176c703d3d2a7a07',
'tag': b'b6e6f197168f5049aeda32dafbdaeb',
'key': b'272f16edb81a7abbea887357a58c1917',
'ct': b''},
{'aad': b'',
'iv': b'907763b19b9b4ab6bd4f0281',
'tag': b'a2be08210d8c470a8df6e8fbd79ec5cf',
'key': b'a49a5e26a2f8cb63d05546c2a62f5343',
'ct': b'',
'fail': True},
{'aad': b'e98e9d9c618e46fef32660976f854ee3',
'pt': b'd1448fa852b84408e2dad8381f363de7',
'iv': b'9549e4ba69a61cad7856efc1',
'tag': b'd72da7f5c6cf0bca7242c71835809449',
'key': b'5c1155084cc0ede76b3bc22e9f7574ef',
'ct': b'f78b60ca125218493bea1c50a2e12ef4'},
]

6
tests/utils.py
View file

@ -43,8 +43,12 @@ def load_nist_vectors(vector_data):
section = line[1:-1]
continue
if line.strip() == "FAIL":
data[section, count]["fail"] = True
continue
# Build our data using a simple Key = Value format
name, value = line.split(" = ")
name, value = [c.strip() for c in line.split("=")]
# COUNT is a special token that indicates a new block of data
if name.upper() == "COUNT":