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authorErwin Nindl <nine@wirdorange.org>2007-06-22 13:59:20 +0000
committerErwin Nindl <nine@wirdorange.org>2007-06-22 13:59:20 +0000
commit0275479cb56c7f562f3513fef66c83fc44d1d8c9 (patch)
treef6fbb703cebf62d18b05e2a5e7591ac08c5b6702 /srtp/crypto/test/stat_driver.c
parentsatp internet draft 00 final ietf version (diff)
added libsrtp to svn
Diffstat (limited to 'srtp/crypto/test/stat_driver.c')
-rw-r--r--srtp/crypto/test/stat_driver.c101
1 files changed, 101 insertions, 0 deletions
diff --git a/srtp/crypto/test/stat_driver.c b/srtp/crypto/test/stat_driver.c
new file mode 100644
index 0000000..09cc44a
--- /dev/null
+++ b/srtp/crypto/test/stat_driver.c
@@ -0,0 +1,101 @@
+/*
+ * stat-driver.c
+ *
+ * test driver for the stat_test functions
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+
+
+#include <stdio.h> /* for printf() */
+
+#include "err.h"
+#include "stat.h"
+
+#include "cipher.h"
+
+typedef struct {
+ void *state;
+} random_source_t;
+
+err_status_t
+random_source_alloc(void);
+
+void
+err_check(err_status_t s) {
+ if (s) {
+ printf("error (code %d)\n", s);
+ exit(1);
+ }
+}
+
+int
+main (int argc, char *argv[]) {
+ uint8_t buffer[2500];
+ unsigned int buf_len = 2500;
+ int i, j;
+ extern cipher_type_t aes_icm;
+ cipher_t *c;
+ uint8_t key[30] = {
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05
+ };
+ v128_t nonce;
+ int num_trials = 500;
+ int num_fail;
+
+ printf("statistical tests driver\n");
+
+ for (i=0; i < 2500; i++)
+ buffer[i] = 0;
+
+ /* run tests */
+ printf("running stat_tests on all-null buffer, expecting failure\n");
+ printf("monobit %d\n", stat_test_monobit(buffer));
+ printf("poker %d\n", stat_test_poker(buffer));
+ printf("runs %d\n", stat_test_runs(buffer));
+
+ for (i=0; i < 2500; i++)
+ buffer[i] = rand();
+ printf("running stat_tests on rand(), expecting success\n");
+ printf("monobit %d\n", stat_test_monobit(buffer));
+ printf("poker %d\n", stat_test_poker(buffer));
+ printf("runs %d\n", stat_test_runs(buffer));
+
+ printf("running stat_tests on AES-128-ICM, expecting success\n");
+ /* set buffer to cipher output */
+ for (i=0; i < 2500; i++)
+ buffer[i] = 0;
+ err_check(cipher_type_alloc(&aes_icm, &c, 30));
+ err_check(cipher_init(c, key, direction_encrypt));
+ err_check(cipher_set_iv(c, &nonce));
+ err_check(cipher_encrypt(c, buffer, &buf_len));
+ /* run tests on cipher outout */
+ printf("monobit %d\n", stat_test_monobit(buffer));
+ printf("poker %d\n", stat_test_poker(buffer));
+ printf("runs %d\n", stat_test_runs(buffer));
+
+ printf("runs test (please be patient): ");
+ fflush(stdout);
+ num_fail = 0;
+ v128_set_to_zero(&nonce);
+ for(j=0; j < num_trials; j++) {
+ for (i=0; i < 2500; i++)
+ buffer[i] = 0;
+ nonce.v32[3] = i;
+ err_check(cipher_set_iv(c, &nonce));
+ err_check(cipher_encrypt(c, buffer, &buf_len));
+ if (stat_test_runs(buffer)) {
+ num_fail++;
+ }
+ }
+
+ printf("%d failures in %d tests\n", num_fail, num_trials);
+ printf("(nota bene: a small fraction of stat_test failures does not \n"
+ "indicate that the random source is invalid)\n");
+
+ return 0;
+}