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Alice now generates KFrags with umbral. Woo!

pull/157/head
jMyles 2018-02-10 18:16:12 -08:00
parent 893ae8d24c
commit 44d9820f7b
1 changed files with 6 additions and 4 deletions
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10
nkms/characters.py
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@ -15,6 +15,7 @@ from sqlalchemy.exc import IntegrityError
from umbral.fragments import KFrag
from umbral.keys import UmbralPublicKey
import umbral
from nkms.crypto import api as API
from nkms.crypto.api import secure_random, keccak_digest
@ -238,7 +239,7 @@ class Alice(Character):
_server_class = NuCypherSeedOnlyDHTServer
_default_crypto_powerups = [SigningPower, EncryptingPower]
def generate_rekey_frags(self, alice_privkey, bob, m, n):
def generate_kfrags(self, bob, m, n):
"""
Generates re-encryption key frags and returns the frags and encrypted
ephemeral key data.
@ -250,9 +251,10 @@ class Alice(Character):
:return: Tuple(kfrags, eph_key_data)
"""
kfrags, eph_key_data = API.ecies_ephemeral_split_rekey(
alice_privkey, bytes(bob.seal.without_metabytes()), m, n)
return (kfrags, eph_key_data)
# TODO: Is this how we want to access Alice's private key?
alice_priv_enc = self._crypto_power._power_ups[EncryptingPower].keypair.privkey
k_frags, _v_keys = umbral.umbral.split_rekey(alice_priv_enc, bob.public_key(EncryptingPower), m, n)
return k_frags
def create_policy(self,
bob: "Bob",