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brake/kdf.py

Last active October 12, 2016 10:13
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Example Key Derivation Function based on Pycrypto module
Raw
kdf.py
from binascii import unhexlify
from functools import partial
from Crypto.Protocol import KDF
from Crypto.Hash import SHA512, HMAC
_SALT = unhexlify('48B755AB80CD1C3DA61182D3DCD2E3A2CA869B783618FF6551FB4B0CDC3B8066') # some salt
_KEY_LENGTH = 32
key_derivation_fn = partial(
KDF.PBKDF2,
salt=_SALT,
dkLen=_KEY_LENGTH,
count=5000,
prf=lambda p,s: HMAC.new(p,s,SHA512).digest()
)
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