import hashlib,binascii,os
import database

rounds = 100000
algorithm = 'sha1'


def authenticate(user,password):
    uid = database.get_user_id(user)
    hexsalt,hexhash = database.get_user_cred(uid)

    salt = binascii.unhexlify(hexsalt)
    dk = hashlib.pbkdf2_hmac(algorithm, password, salt, rounds)
    hexdk = binascii.hexlify(dk)

    if hexdk == hexhash:
        return uid
    return False


def myhash(obj):
    salt = os.urandom(16)
    hexsalt = binascii.hexlify(salt)
    dk = hashlib.pbkdf2_hmac(algorithm, obj, salt, rounds)
    hexdk = binascii.hexlify(dk)
    return hexsalt, hexdk