From f4a4f5d0b1a51624e0b8c65c126ac53baf5106d7 Mon Sep 17 00:00:00 2001 From: Koen Zandberg Date: Sun, 21 Oct 2018 21:34:29 +0200 Subject: [PATCH] chacha20poly1305: Provide a test based on the rfc Add a test case to the crypto tests testing the chacha20poly1305 algorithm with the test vectors from rfc 8439. --- .../tests-crypto-chacha20poly1305.c | 86 +++++++++++++++++++ tests/unittests/tests-crypto/tests-crypto.c | 1 + tests/unittests/tests-crypto/tests-crypto.h | 2 + 3 files changed, 89 insertions(+) create mode 100644 tests/unittests/tests-crypto/tests-crypto-chacha20poly1305.c diff --git a/tests/unittests/tests-crypto/tests-crypto-chacha20poly1305.c b/tests/unittests/tests-crypto/tests-crypto-chacha20poly1305.c new file mode 100644 index 0000000000..a22cd67d00 --- /dev/null +++ b/tests/unittests/tests-crypto/tests-crypto-chacha20poly1305.c @@ -0,0 +1,86 @@ +/* + * Copyright (C) 2018 Koen Zandberg + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License v2.1. See the file LICENSE in the top level + * directory for more details. + */ + +#include "embUnit/embUnit.h" +#include "tests-crypto.h" +#include +#include +#include +#include + +#include "crypto/chacha20poly1305.h" + +/* ciphertext buffer */ +uint8_t ebuf[1024]; +/* Plaintext buffer */ +uint8_t pbuf[1024]; + +static const uint8_t key_1[32] = { + 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, + 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f +}; + +static const uint8_t msg_1[] = { + 0x4c, 0x61, 0x64, 0x69, 0x65, 0x73, 0x20, 0x61, 0x6e, 0x64, 0x20, 0x47, 0x65, 0x6e, 0x74, 0x6c, + 0x65, 0x6d, 0x65, 0x6e, 0x20, 0x6f, 0x66, 0x20, 0x74, 0x68, 0x65, 0x20, 0x63, 0x6c, 0x61, 0x73, + 0x73, 0x20, 0x6f, 0x66, 0x20, 0x27, 0x39, 0x39, 0x3a, 0x20, 0x49, 0x66, 0x20, 0x49, 0x20, 0x63, + 0x6f, 0x75, 0x6c, 0x64, 0x20, 0x6f, 0x66, 0x66, 0x65, 0x72, 0x20, 0x79, 0x6f, 0x75, 0x20, 0x6f, + 0x6e, 0x6c, 0x79, 0x20, 0x6f, 0x6e, 0x65, 0x20, 0x74, 0x69, 0x70, 0x20, 0x66, 0x6f, 0x72, 0x20, + 0x74, 0x68, 0x65, 0x20, 0x66, 0x75, 0x74, 0x75, 0x72, 0x65, 0x2c, 0x20, 0x73, 0x75, 0x6e, 0x73, + 0x63, 0x72, 0x65, 0x65, 0x6e, 0x20, 0x77, 0x6f, 0x75, 0x6c, 0x64, 0x20, 0x62, 0x65, 0x20, 0x69, + 0x74, 0x2e +}; + +static const uint8_t aad_1[] = { + 0x50, 0x51, 0x52, 0x53, 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7 +}; + +static const uint8_t nonce_1[] = { + 0x07, 0x00, 0x00, 0x00, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47 +}; + +static const uint8_t ciphertext_1[] = { + 0xd3, 0x1a, 0x8d, 0x34, 0x64, 0x8e, 0x60, 0xdb, 0x7b, 0x86, 0xaf, 0xbc, + 0x53, 0xef, 0x7e, 0xc2, 0xa4, 0xad, 0xed, 0x51, 0x29, 0x6e, 0x08, 0xfe, + 0xa9, 0xe2, 0xb5, 0xa7, 0x36, 0xee, 0x62, 0xd6, 0x3d, 0xbe, 0xa4, 0x5e, + 0x8c, 0xa9, 0x67, 0x12, 0x82, 0xfa, 0xfb, 0x69, 0xda, 0x92, 0x72, 0x8b, + 0x1a, 0x71, 0xde, 0x0a, 0x9e, 0x06, 0x0b, 0x29, 0x05, 0xd6, 0xa5, 0xb6, + 0x7e, 0xcd, 0x3b, 0x36, 0x92, 0xdd, 0xbd, 0x7f, 0x2d, 0x77, 0x8b, 0x8c, + 0x98, 0x03, 0xae, 0xe3, 0x28, 0x09, 0x1b, 0x58, 0xfa, 0xb3, 0x24, 0xe4, + 0xfa, 0xd6, 0x75, 0x94, 0x55, 0x85, 0x80, 0x8b, 0x48, 0x31, 0xd7, 0xbc, + 0x3f, 0xf4, 0xde, 0xf0, 0x8e, 0x4b, 0x7a, 0x9d, 0xe5, 0x76, 0xd2, 0x65, + 0x86, 0xce, 0xc6, 0x4b, 0x61, 0x16, 0x1a, 0xe1, 0x0b, 0x59, 0x4f, 0x09, + 0xe2, 0x6a, 0x7e, 0x90, 0x2e, 0xcb, 0xd0, 0x60, 0x06, 0x91, +}; + +static void _test_chacha20poly1305(const uint8_t *key, const uint8_t *nonce, + const uint8_t *msg, size_t msglen, + const uint8_t *aad, size_t aadlen) +{ + memcpy(ebuf, msg, msglen); + chacha20poly1305_encrypt(ebuf, msg, msglen, aad, aadlen, key, nonce); + TEST_ASSERT_EQUAL_INT(0, memcmp(ebuf, ciphertext_1, msglen + 16)); + size_t len; + TEST_ASSERT_EQUAL_INT(1, + chacha20poly1305_decrypt(ebuf, msglen+16, pbuf, &len, aad, aadlen, key, nonce)); + TEST_ASSERT_EQUAL_INT(0, memcmp(pbuf, msg_1, msglen)); +} + +static void test_crypto_chacha20poly1305_1(void) +{ + _test_chacha20poly1305(key_1, nonce_1, msg_1, sizeof(msg_1), aad_1, sizeof(aad_1)); +} + +Test *tests_crypto_chacha20poly1305_tests(void) +{ + EMB_UNIT_TESTFIXTURES(fixtures) { + new_TestFixture(test_crypto_chacha20poly1305_1), + }; + EMB_UNIT_TESTCALLER(crypto_chacha20poly1305_tests, NULL, NULL, fixtures); + return (Test *) &crypto_chacha20poly1305_tests; +} diff --git a/tests/unittests/tests-crypto/tests-crypto.c b/tests/unittests/tests-crypto/tests-crypto.c index 3756fae1a4..d10a57fa96 100644 --- a/tests/unittests/tests-crypto/tests-crypto.c +++ b/tests/unittests/tests-crypto/tests-crypto.c @@ -14,6 +14,7 @@ void tests_crypto(void) TESTS_RUN(tests_crypto_helper_tests()); TESTS_RUN(tests_crypto_chacha_tests()); TESTS_RUN(tests_crypto_poly1305_tests()); + TESTS_RUN(tests_crypto_chacha20poly1305_tests()); TESTS_RUN(tests_crypto_aes_tests()); TESTS_RUN(tests_crypto_cipher_tests()); TESTS_RUN(tests_crypto_modes_ccm_tests()); diff --git a/tests/unittests/tests-crypto/tests-crypto.h b/tests/unittests/tests-crypto/tests-crypto.h index ad97004005..e4a1af38c5 100644 --- a/tests/unittests/tests-crypto/tests-crypto.h +++ b/tests/unittests/tests-crypto/tests-crypto.h @@ -48,6 +48,8 @@ Test *tests_crypto_chacha_tests(void); Test *tests_crypto_poly1305_tests(void); +Test *tests_crypto_chacha20poly1305_tests(void); + static inline int compare(const uint8_t *a, const uint8_t *b, uint8_t len) { int result = 1;