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Initial commit.

bootloader/mcuboot/ext/tinycrypt/tests/test_hmac_prng.c

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+/*  test_hmac_prng.c - TinyCrypt implementation of some HMAC-PRNG tests */
+
+/*
+ *  Copyright (C) 2017 by Intel Corporation, All Rights Reserved.
+ *
+ *  Redistribution and use in source and binary forms, with or without
+ *  modification, are permitted provided that the following conditions are met:
+ *
+ *    - Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *    - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ *    - Neither the name of Intel Corporation nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ *  POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+  DESCRIPTION
+  This module tests the following PRNG routines:
+
+  Scenarios tested include:
+  - HMAC-PRNG init
+  - HMAC-PRNG reseed
+  - HMAC-PRNG generate)
+*/
+
+#include <tinycrypt/hmac_prng.h>
+#include <tinycrypt/constants.h>
+#include <test_utils.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define TC_DEBUG_MODE 0
+
+#ifdef TC_DEBUG_MODE
+void show(const char *label, const uint8_t *s, size_t len)
+{
+	unsigned int i;
+	printf ("%s = ", label);
+	for (i = 0; i < (unsigned int) len; ++i) {
+		printf ("%02x", s[i]);
+	}
+	printf ("\n");
+}
+
+void printBinaryFile(const uint8_t *s, unsigned int slen)
+{
+	FILE *write_ptr;
+	write_ptr = fopen("pseudo-random-data.bin","wb");
+	fwrite(s, slen, 1, write_ptr);
+}
+#endif
+
+/*
+ * Main task to test AES
+ */
+int main(void)
+{
+        uint8_t seed[128];
+        struct tc_hmac_prng_struct h;
+        unsigned int size = (1 << 19);
+        uint8_t random[size];
+        unsigned int i;
+        unsigned int result = TC_PASS;
+
+        TC_START("Performing HMAC-PRNG tests:");
+        TC_PRINT("HMAC-PRNG test#1 (init, reseed, generate):\n");
+
+        /* Fake seed (replace by a a truly random seed): */
+        for (i = 0; i < (unsigned int) sizeof(seed); ++i) {
+                seed[i] = i;
+        }
+
+        /* Fake personalization and additional_input (replace by appropriate
+	     * values): *
+	     * e.g.: hostname+timestamp */
+        uint8_t *personalization = (uint8_t *) "HOSTNAME";
+        uint8_t *additional_input = (uint8_t *) "additional input";
+
+        TC_PRINT("HMAC-PRNG test#1 (init):\n");
+        if (tc_hmac_prng_init(&h, personalization,
+			      sizeof(personalization)) == 0) {
+                TC_ERROR("HMAC-PRNG initialization failed.\n");
+                result = TC_FAIL;
+                goto exitTest;
+        }
+        TC_END_RESULT(result);
+
+        TC_PRINT("HMAC-PRNG test#1 (reseed):\n");
+        if (tc_hmac_prng_reseed(&h, seed, sizeof(seed), additional_input,
+                                sizeof(additional_input)) == 0) {
+                TC_ERROR("HMAC-PRNG reseed failed.\n");
+                result = TC_FAIL;
+                goto exitTest;
+        }
+
+        TC_END_RESULT(result);
+
+        TC_PRINT("HMAC-PRNG test#1 (generate):\n");
+        if (tc_hmac_prng_generate(random, size, &h) < 1) {
+                TC_ERROR("HMAC-PRNG generate failed.\n");
+                result = TC_FAIL;
+                goto exitTest;
+        }
+        TC_END_RESULT(result);
+
+#ifdef TC_DEBUG_MODE
+	printBinaryFile(random, size);
+	show ("Pseudo-random data", random, size);
+#endif
+
+        TC_PRINT("All HMAC tests succeeded!\n");
+
+ exitTest:
+        TC_END_RESULT(result);
+        TC_END_REPORT(result);
+}