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unittests/crypto: changed to really compare digest vs string of digest

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* added additional test with longer input
* uncrustified file
This commit is contained in:
BytesGalore 2015-12-16 15:04:08 +01:00
parent 80023f07d8
commit 59a69796ab
1 changed files with 47 additions and 17 deletions
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38
tests/unittests/tests-crypto/tests-crypto-sha256.c
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@ -10,6 +10,7 @@
#include <limits.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include "embUnit/embUnit.h"
@ -17,15 +18,33 @@
#include "tests-crypto.h"
static int compare_str_vs_digest(const char *str,
const unsigned char hash[SHA256_DIGEST_LENGTH])
{
char ch[3] = { 0, 0, 0 };
size_t iter_hash = 0;
size_t str_length = strlen(str);
for (size_t i = 0; i < str_length; i += 2) {
ch[0] = str[i];
ch[1] = str[i + 1];
if (hash[iter_hash++] != strtol(ch, NULL, 16)) {
return 0;
}
}
return 1;
}
static int calc_and_compare_hash(const char *str, const char *expected)
{
static unsigned char hash[SHA256_DIGEST_LENGTH];
sha256_context_t sha256;
sha256_init(&sha256);
sha256_update(&sha256, str, strlen(str));
sha256_final(hash, &sha256);
return strncmp((const char *) hash, expected, SHA256_DIGEST_LENGTH);
return compare_str_vs_digest(expected, hash);
}
static void test_crypto_sha256_hash_sequence(void)
@ -49,16 +68,27 @@ static void test_crypto_sha256_hash_sequence(void)
"78206a866dbb2bf017d8e34274aed01a8ce405b69d45db30bafa00f5eeed7d5e"));
TEST_ASSERT(calc_and_compare_hash("",
"e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"));
TEST_ASSERT(calc_and_compare_hash(
"RIOT is an open-source microkernel-based operating system, designed"
" to match the requirements of Internet of Things (IoT) devices and"
" other embedded devices. These requirements include a very low memory"
" footprint (on the order of a few kilobytes), high energy efficiency"
", real-time capabilities, communication stacks for both wireless and"
" wired networks, and support for a wide range of low-power hardware.",
"06c84971e2831c48b8293144c762e3236a78217354896185b14a3a84f7cd8066"));
/* test failing sha256 by switching last byte of expected hash from 3b to 3c */
TEST_ASSERT(!calc_and_compare_hash("This test fails!",
"c19d3bf8588897076873f1a0a106ba840ca46bd1179d592953acecc4df59593c"));
}
Test *tests_crypto_sha256_tests(void)
{
EMB_UNIT_TESTFIXTURES(fixtures) {
new_TestFixture(test_crypto_sha256_hash_sequence),
};
};
EMB_UNIT_TESTCALLER(crypto_sha256_tests, NULL, NULL,
EMB_UNIT_TESTCALLER(crypto_sha256_tests, NULL, NULL,
fixtures);
return (Test *)&crypto_sha256_tests;
return (Test *)&crypto_sha256_tests;
}