From 07af965f2687105324e0142270a9e194a5ae6af5 Mon Sep 17 00:00:00 2001 From: Kévin Le Gouguec Date: Mon, 25 Mar 2019 08:38:01 +0100 Subject: [implem-python] Ajout des entêtes manquants MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- src/add_python/lilliput/ae_common.py | 17 +++++++++++++++ src/add_python/lilliput/helpers.py | 17 +++++++++++++++ src/add_python/lilliput/multiplications.py | 19 +++++++++++++++++ test/python/crypto_aead.py | 33 +++++++++++++++++++++++------- test/python/genkat_aead.py | 17 ++++++++++++++- 5 files changed, 95 insertions(+), 8 deletions(-) diff --git a/src/add_python/lilliput/ae_common.py b/src/add_python/lilliput/ae_common.py index 033b5b0..83db056 100644 --- a/src/add_python/lilliput/ae_common.py +++ b/src/add_python/lilliput/ae_common.py @@ -1,3 +1,20 @@ +# Implementation of the Lilliput-AE tweakable block cipher. +# +# Authors, hereby denoted as "the implementer": +# Kévin Le Gouguec, +# Léo Reynaud +# 2019. +# +# For more information, feedback or questions, refer to our website: +# https://paclido.fr/lilliput-ae +# +# To the extent possible under law, the implementer has waived all copyright +# and related or neighboring rights to the source code in this file. +# http://creativecommons.org/publicdomain/zero/1.0/ + +"""Helper functions used in both Lilliput-I and Lilliput-II.""" + + from .constants import BLOCK_BITS, BLOCK_BYTES from .helpers import xor from . import tbc diff --git a/src/add_python/lilliput/helpers.py b/src/add_python/lilliput/helpers.py index 048aac7..41f75a6 100644 --- a/src/add_python/lilliput/helpers.py +++ b/src/add_python/lilliput/helpers.py @@ -1,2 +1,19 @@ +# Implementation of the Lilliput-AE tweakable block cipher. +# +# Authors, hereby denoted as "the implementer": +# Kévin Le Gouguec, +# Léo Reynaud +# 2019. +# +# For more information, feedback or questions, refer to our website: +# https://paclido.fr/lilliput-ae +# +# To the extent possible under law, the implementer has waived all copyright +# and related or neighboring rights to the source code in this file. +# http://creativecommons.org/publicdomain/zero/1.0/ + +"""Helper functions used in Lilliput-AE.""" + + def xor(array1, array2): return [a1^a2 for (a1, a2) in zip(array1, array2)] diff --git a/src/add_python/lilliput/multiplications.py b/src/add_python/lilliput/multiplications.py index dfdc3cb..2dea948 100644 --- a/src/add_python/lilliput/multiplications.py +++ b/src/add_python/lilliput/multiplications.py @@ -1,3 +1,22 @@ +# Implementation of the Lilliput-AE tweakable block cipher. +# +# Authors, hereby denoted as "the implementer": +# Kévin Le Gouguec, +# Léo Reynaud +# 2019. +# +# For more information, feedback or questions, refer to our website: +# https://paclido.fr/lilliput-ae +# +# To the extent possible under law, the implementer has waived all copyright +# and related or neighboring rights to the source code in this file. +# http://creativecommons.org/publicdomain/zero/1.0/ + +"""Multiplications for Lilliput-TBC's tweakey schedule. + +This module provides a list of functions implementing lane multiplications, +from ALPHAS[0] = α₀ = I to ALPHAS[6] = α₆ = M_R³. +""" def _multiply_M(lane): diff --git a/test/python/crypto_aead.py b/test/python/crypto_aead.py index 792369c..6a9b328 100644 --- a/test/python/crypto_aead.py +++ b/test/python/crypto_aead.py @@ -1,9 +1,29 @@ +# Implementation of the Lilliput-AE tweakable block cipher. +# +# Authors, hereby denoted as "the implementer": +# Kévin Le Gouguec, +# 2019. +# +# For more information, feedback or questions, refer to our website: +# https://paclido.fr/lilliput-ae +# +# To the extent possible under law, the implementer has waived all copyright +# and related or neighboring rights to the source code in this file. +# http://creativecommons.org/publicdomain/zero/1.0/ + +"""Python port of the crypto_aead API for Lilliput-AE.""" + import lilliput -from lilliput.constants import NONCE_BYTES as NPUBBYTES, TAG_BYTES -# Import KEYBYTES to expose it to genkat_aead. -# Import MODE to provide it to lilliput. -from parameters import KEYBYTES, MODE +from lilliput.constants import ( + NONCE_BYTES as NPUBBYTES, # Expose to genkat_aead. + TAG_BYTES +) + +from parameters import ( + KEYBYTES, # Expose to genkat_aead. + MODE +) def encrypt(m, ad, npub, k): @@ -12,7 +32,6 @@ def encrypt(m, ad, npub, k): def decrypt(c, ad, npub, k): - clen = len(c)-TAG_BYTES - ctext = c[:clen] - tag = c[clen:] + ctext = c[:-TAG_BYTES] + tag = c[-TAG_BYTES:] return lilliput.decrypt(ctext, tag, ad, k, npub, MODE) diff --git a/test/python/genkat_aead.py b/test/python/genkat_aead.py index 5e953c4..db3a89c 100755 --- a/test/python/genkat_aead.py +++ b/test/python/genkat_aead.py @@ -1,11 +1,26 @@ #!/usr/bin/env python3 +# Python port of genkat_aead.c. +# +# Authors, hereby denoted as "the implementer": +# Kévin Le Gouguec, +# 2019. +# +# For more information, feedback or questions, refer to our website: +# https://paclido.fr/lilliput-ae +# +# To the extent possible under law, the implementer has waived all copyright +# and related or neighboring rights to the source code in this file. +# http://creativecommons.org/publicdomain/zero/1.0/ + +"""Python port of the genkat_aead.c program.""" + import crypto_aead class DecryptionError(Exception): def __init__(self): - super().__init__('crypto_aead_decrypt did not recover the plaintext') + super().__init__('crypto_aead.decrypt did not recover the plaintext') MAX_MESSAGE_LENGTH = 32 -- cgit v1.2.3