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https://github.com/trezor/trezor-firmware.git
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fix blowfish. add unit tests for blowfish
This commit is contained in:
Pavol Rusnak
parent
47cb0fefce
commit
99565b3130
34
blowfish.c
34
blowfish.c
@ -1,3 +1,25 @@
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/**
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* Copyright (c) 2013 Pavol Rusnak
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES
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* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <string.h>
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#include "blowfish.h"
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@ -361,15 +383,27 @@ void blowfish_setkey(uint8_t *key, int keylen)
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void blowfish_encrypt(uint8_t *data, int datalen)
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{
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int i;
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for (i = 0; i < datalen / 4; i++) {
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swapendian((uint32_t *)(data + i * 4));
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}
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for (i = 0; i < datalen / 8; i++) {
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encrypt((uint32_t *)(data + i * 8), (uint32_t *)(data + i * 8 + 4));
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}
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for (i = 0; i < datalen / 4; i++) {
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swapendian((uint32_t *)(data + i * 4));
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}
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}
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void blowfish_decrypt(uint8_t *data, int datalen)
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{
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int i;
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for (i = 0; i < datalen / 4; i++) {
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swapendian((uint32_t *)(data + i * 4));
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}
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for (i = 0; i < datalen / 8; i++) {
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decrypt((uint32_t *)(data + i * 8), (uint32_t *)(data + i * 8 + 4));
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}
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for (i = 0; i < datalen / 4; i++) {
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swapendian((uint32_t *)(data + i * 4));
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}
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}
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22
blowfish.h
22
blowfish.h
@ -1,3 +1,25 @@
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/**
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* Copyright (c) 2013 Pavol Rusnak
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES
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* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef __BLOWFISH_H__
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#define __BLOWFISH_H__
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72
tests.c
72
tests.c
@ -281,17 +281,74 @@ START_TEST(test_verify_speed)
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}
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END_TEST
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#define test_bfsh(KEY, CLEAR, CIPHER) do { \
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memcpy(key, fromhex(KEY), strlen(KEY)/2); \
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memcpy(data, fromhex(CLEAR), strlen(CLEAR)/2); \
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blowfish_setkey(key, strlen(KEY)/2); \
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blowfish_encrypt(data, strlen(CLEAR)/2); \
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ck_assert_mem_eq(data, fromhex(CIPHER), strlen(CIPHER)/2); \
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} while (0)
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// test vectors from https://www.schneier.com/code/vectors.txt
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START_TEST(test_blowfish)
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START_TEST(test_blowfish_1)
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{
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uint8_t key[8];
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uint8_t data[8];
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test_bfsh("0000000000000000", "0000000000000000", "4ef997456198dd78");
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test_bfsh("ffffffffffffffff", "ffffffffffffffff", "51866fd5b85ecb8a");
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test_bfsh("3000000000000000", "1000000000000001", "7d856f9a613063f2");
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test_bfsh("1111111111111111", "1111111111111111", "2466dd878b963c9d");
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test_bfsh("0123456789abcdef", "1111111111111111", "61f9c3802281b096");
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test_bfsh("1111111111111111", "0123456789abcdef", "7d0cc630afda1ec7");
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test_bfsh("0000000000000000", "0000000000000000", "4ef997456198dd78");
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test_bfsh("fedcba9876543210", "0123456789abcdef", "0aceab0fc6a0a28d");
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test_bfsh("7ca110454a1a6e57", "01a1d6d039776742", "59c68245eb05282b");
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test_bfsh("0131d9619dc1376e", "5cd54ca83def57da", "b1b8cc0b250f09a0");
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test_bfsh("07a1133e4a0b2686", "0248d43806f67172", "1730e5778bea1da4");
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test_bfsh("3849674c2602319e", "51454b582ddf440a", "a25e7856cf2651eb");
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test_bfsh("04b915ba43feb5b6", "42fd443059577fa2", "353882b109ce8f1a");
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test_bfsh("0113b970fd34f2ce", "059b5e0851cf143a", "48f4d0884c379918");
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test_bfsh("0170f175468fb5e6", "0756d8e0774761d2", "432193b78951fc98");
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test_bfsh("43297fad38e373fe", "762514b829bf486a", "13f04154d69d1ae5");
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test_bfsh("07a7137045da2a16", "3bdd119049372802", "2eedda93ffd39c79");
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test_bfsh("04689104c2fd3b2f", "26955f6835af609a", "d887e0393c2da6e3");
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test_bfsh("37d06bb516cb7546", "164d5e404f275232", "5f99d04f5b163969");
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test_bfsh("1f08260d1ac2465e", "6b056e18759f5cca", "4a057a3b24d3977b");
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test_bfsh("584023641aba6176", "004bd6ef09176062", "452031c1e4fada8e");
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test_bfsh("025816164629b007", "480d39006ee762f2", "7555ae39f59b87bd");
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test_bfsh("49793ebc79b3258f", "437540c8698f3cfa", "53c55f9cb49fc019");
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test_bfsh("4fb05e1515ab73a7", "072d43a077075292", "7a8e7bfa937e89a3");
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test_bfsh("49e95d6d4ca229bf", "02fe55778117f12a", "cf9c5d7a4986adb5");
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test_bfsh("018310dc409b26d6", "1d9d5c5018f728c2", "d1abb290658bc778");
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test_bfsh("1c587f1c13924fef", "305532286d6f295a", "55cb3774d13ef201");
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test_bfsh("0101010101010101", "0123456789abcdef", "fa34ec4847b268b2");
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test_bfsh("1f1f1f1f0e0e0e0e", "0123456789abcdef", "a790795108ea3cae");
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test_bfsh("e0fee0fef1fef1fe", "0123456789abcdef", "c39e072d9fac631d");
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test_bfsh("0000000000000000", "ffffffffffffffff", "014933e0cdaff6e4");
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test_bfsh("ffffffffffffffff", "0000000000000000", "f21e9a77b71c49bc");
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test_bfsh("0123456789abcdef", "0000000000000000", "245946885754369a");
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test_bfsh("fedcba9876543210", "ffffffffffffffff", "6b5c5a9c5d9e0a5a");
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}
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END_TEST
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memcpy(key, fromhex("0000000000000000"), 8);
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memcpy(data, fromhex("0000000000000000"), 8);
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blowfish_setkey(key, 8);
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blowfish_encrypt(data, 8);
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ck_assert_mem_eq(data, fromhex("4ef997456198dd78"), 8);
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// mnemonic test vectors
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START_TEST(test_blowfish_2)
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{
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uint8_t key[24];
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uint8_t data[24];
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// 6d6e656d6f6e6963 = "mnemonic"
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test_bfsh("6d6e656d6f6e6963", "0000000000000000", "e6b5de53efaec3a5");
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test_bfsh("6d6e656d6f6e6963", "00000000000000000000000000000000", "e6b5de53efaec3a5e6b5de53efaec3a5");
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test_bfsh("6d6e656d6f6e6963", "000000000000000000000000000000000000000000000000", "e6b5de53efaec3a5e6b5de53efaec3a5e6b5de53efaec3a5");
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test_bfsh("6d6e656d6f6e6963", "7f7f7f7f7f7f7f7f", "cb21e7cd6313594b");
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test_bfsh("6d6e656d6f6e6963", "7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f", "cb21e7cd6313594bcb21e7cd6313594b");
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test_bfsh("6d6e656d6f6e6963", "7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f", "cb21e7cd6313594bcb21e7cd6313594bcb21e7cd6313594b");
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test_bfsh("6d6e656d6f6e6963", "8080808080808080", "8800e1df66298ae6");
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test_bfsh("6d6e656d6f6e6963", "80808080808080808080808080808080", "8800e1df66298ae68800e1df66298ae6");
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test_bfsh("6d6e656d6f6e6963", "808080808080808080808080808080808080808080808080", "8800e1df66298ae68800e1df66298ae68800e1df66298ae6");
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test_bfsh("6d6e656d6f6e6963", "ffffffffffffffff", "4c8be56fcf3de4cf");
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test_bfsh("6d6e656d6f6e6963", "ffffffffffffffffffffffffffffffff", "4c8be56fcf3de4cf4c8be56fcf3de4cf");
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test_bfsh("6d6e656d6f6e6963", "ffffffffffffffffffffffffffffffffffffffffffffffff", "4c8be56fcf3de4cf4c8be56fcf3de4cf4c8be56fcf3de4cf");
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}
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END_TEST
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@ -316,7 +373,8 @@ Suite *test_suite(void)
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suite_add_tcase(s, tc);
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tc = tcase_create("blowfish");
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tcase_add_test(tc, test_blowfish);
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tcase_add_test(tc, test_blowfish_1);
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tcase_add_test(tc, test_blowfish_2);
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suite_add_tcase(s, tc);
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return s;
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