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# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.
import binascii
from cryptography.hazmat.primitives import hashes
from cryptography.hazmat.primitives.kdf.pbkdf2 import PBKDF2HMAC
from .utils import wycheproof_tests
_HASH_ALGORITHMS = {
"PBKDF2-HMACSHA1": hashes.SHA1(),
"PBKDF2-HMACSHA224": hashes.SHA224(),
"PBKDF2-HMACSHA256": hashes.SHA256(),
"PBKDF2-HMACSHA384": hashes.SHA384(),
"PBKDF2-HMACSHA512": hashes.SHA512(),
}
@wycheproof_tests(
"pbkdf2_hmacsha1_test.json",
"pbkdf2_hmacsha224_test.json",
"pbkdf2_hmacsha256_test.json",
"pbkdf2_hmacsha384_test.json",
"pbkdf2_hmacsha512_test.json",
subdir="testvectors_v1",
)
def test_pbkdf2(backend, wycheproof):
assert wycheproof.valid
algorithm = _HASH_ALGORITHMS[wycheproof.testfiledata["algorithm"]]
p = PBKDF2HMAC(
algorithm=algorithm,
length=wycheproof.testcase["dkLen"],
salt=binascii.unhexlify(wycheproof.testcase["salt"]),
iterations=wycheproof.testcase["iterationCount"],
)
assert p.derive(
binascii.unhexlify(wycheproof.testcase["password"])
) == binascii.unhexlify(wycheproof.testcase["dk"])
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