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authorMattias Andrée <maandree@kth.se>2022-02-15 13:06:51 +0100
committerMattias Andrée <maandree@kth.se>2022-02-15 13:06:51 +0100
commitbfcbe4763c7c627d6d7dc931844e517e27a16447 (patch)
tree360064ed1c32f55bd1c77afdb605001c55539645
parentAdd tests for *-prefix syntax (diff)
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Add test for salt generation
Signed-off-by: Mattias Andrée <maandree@kth.se>
-rw-r--r--test.c71
1 files changed, 70 insertions, 1 deletions
diff --git a/test.c b/test.c
index 9bf1bd0..413131a 100644
--- a/test.c
+++ b/test.c
@@ -1,5 +1,10 @@
/* See LICENSE file for copyright and license details. */
#include "common.h"
+#ifdef __linux__
+#include <sys/random.h>
+#endif
+
+#define SALT_ALPHABET "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"
#define MEM(S) S, sizeof(S) - 1
@@ -108,7 +113,69 @@ check_hash(const char *pwd, size_t pwdlen, const char *input, const char *output
}
-#define SALT_ALPHABET "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"
+#ifdef __linux__
+static ssize_t getrandom_return;
+static char getrandom_random0;
+#endif
+
+ssize_t
+getrandom(void *buf, size_t buflen, unsigned int flags)
+{
+ size_t i;
+ assert(flags == GRND_NONBLOCK);
+ if (getrandom_return < 0)
+ return getrandom_return;
+ for (i = 0; i < buflen && i < (size_t)getrandom_return; i++)
+ ((char *)buf)[i] = (char)((size_t)getrandom_random0 + i);
+ return (ssize_t)i;
+}
+
+static void
+check_random_salt_generate(void)
+{
+ struct libar2_argon2_parameters *params[8];
+ size_t i, num_equal_first;
+
+#ifdef __linux__
+ char expected_salt[8];
+ const char *expected_salts[] = {
+ "AAAAAAAAAAA",
+ "BCBCBCBCBCB",
+ "CDECDECDECD",
+ "DEFGDEFGDEF",
+ "EFGHIEFGHIE",
+ "FGHIJKFGHIJ",
+ "GHIJKLMGHIJ",
+ "HIJKLMNOHIJ"
+ };
+
+ for (i = 0; i < sizeof(params) / sizeof(*params); i++) {
+ getrandom_return = (ssize_t)(i + 1);
+ getrandom_random0 = (char)i;
+ assert(!!(params[i] = libar2simplified_decode("$argon2d$v=16$m=8,t=1,p=1$*8$*8", NULL, NULL, NULL)));
+ assert_zueq(params[i]->saltlen, sizeof(expected_salt));
+ libar2_decode_base64(expected_salts[i], expected_salt, &(size_t){0});
+ assert(!memcmp(params[i]->salt, expected_salt, sizeof(expected_salt)));
+ free(params[i]);
+ }
+
+ getrandom_return = -1;
+ getrandom_random0 = 0;
+#endif
+
+ num_equal_first = 0;
+ for (i = 0; i < sizeof(params) / sizeof(*params); i++) {
+ assert(!!(params[i] = libar2simplified_decode("$argon2d$v=16$m=8,t=1,p=1$*8$*8", NULL, NULL, NULL)));
+ }
+ for (i = 1; i < sizeof(params) / sizeof(*params); i++) {
+ assert_zueq(params[i]->saltlen, params[0]->saltlen);
+ num_equal_first += !memcmp(params[i]->salt, params[0]->salt, params[0]->saltlen);
+ free(params[i]);
+ }
+ free(params[0]);
+ assert(num_equal_first <= (sizeof(params) / sizeof(*params) - 1) / 4);
+}
+
static int
gensalt_ICAgICAgICA(char *out, size_t n)
@@ -176,5 +243,7 @@ main(void)
"NjODMrWrS7zeivNNpHsuxD9c6uDmUQ6YqPRhb8H5DSNw9n683FUCJZ3tyxgfJpYYANI"
"+01WT/S5zp1UVs+qNRwnkdEyLKZMg+DIOXVc9z1po9ZlZG8+Gp4g5brqfza3lvkR9vw");
+ check_random_salt_generate();
+
return 0;
}