def hkdf_extract_test(backend, algorithm, params):
hkdf = HKDF(algorithm,
int(params["l"]),
salt=binascii.unhexlify(params["salt"]) or None,
info=binascii.unhexlify(params["info"]) or None,
backend=backend)
prk = hkdf._extract(binascii.unhexlify(params["ikm"]))
assert prk == binascii.unhexlify(params["prk"])
def hkdf_extract_test(backend, algorithm, params):
hkdf = HKDF(
algorithm,
int(params["l"]),
salt=binascii.unhexlify(params["salt"]) or None,
info=binascii.unhexlify(params["info"]) or None,
backend=backend
)
prk = hkdf._extract(binascii.unhexlify(params["ikm"]))
assert prk == binascii.unhexlify(params["prk"])
def extract(self, salt, ikm):
h = self.hash
hkdf = HKDF(h, h.digest_size, salt, None, default_backend())
if ikm is None:
ikm = b"\x00" * h.digest_size
return hkdf._extract(ikm)
def extract(self, salt, ikm):
h = self.hash
hkdf = HKDF(h, h.digest_size, salt, None, default_backend())
if ikm is None:
ikm = b"\x00" * h.digest_size
return hkdf._extract(ikm)
