Implement tests for PKCS#5 PBKDF2 HMAC

/* Written by Christian Heimes, 2013 */

/*

 * Copyright (c) 2013 The OpenSSL Project.  All rights reserved.

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 * modification, are permitted provided that the following conditions

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 *    "This product includes software developed by the OpenSSL Project

 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"

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 *    "This product includes software developed by the OpenSSL Project

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#include <stdio.h>

#include <string.h>

#include "../e_os.h"

#include <openssl/opensslconf.h>

#include <openssl/evp.h>

#ifndef OPENSSL_NO_ENGINE

#include <openssl/engine.h>

#endif

#include <openssl/err.h>

#include <openssl/conf.h>

typedef struct {

	const char *pass;

	int passlen;

	const char *salt;

	int saltlen;

	int iter;

} testdata;

static testdata test_cases[] = {

	{"password", 8, "salt", 4, 1},

	{"password", 8, "salt", 4, 2},

	{"password", 8, "salt", 4, 4096},

	{"passwordPASSWORDpassword", 24,

	 "saltSALTsaltSALTsaltSALTsaltSALTsalt", 36, 4096},

	{"pass\0word", 9, "sa\0lt", 5, 4096},

	{NULL},

};

static const char *sha1_results[] = {

	"0c60c80f961f0e71f3a9b524af6012062fe037a6",

	"ea6c014dc72d6f8ccd1ed92ace1d41f0d8de8957",

	"4b007901b765489abead49d926f721d065a429c1",

	"3d2eec4fe41c849b80c8d83662c0e44a8b291a964cf2f07038",

	"56fa6aa75548099dcc37d7f03425e0c3",

};

static const char *sha256_results[] = {

	"120fb6cffcf8b32c43e7225256c4f837a86548c92ccc35480805987cb70be17b",

	"ae4d0c95af6b46d32d0adff928f06dd02a303f8ef3c251dfd6e2d85a95474c43",

	"c5e478d59288c841aa530db6845c4c8d962893a001ce4e11a4963873aa98134a",

	"348c89dbcbd32b2f32d814b8116e84cf2b17347ebc1800181c4e2a1fb8dd53e1c63551"

		"8c7dac47e9",

	"89b69d0516f829893c696226650a8687",

};

static const char *sha512_results[] = {

	"867f70cf1ade02cff3752599a3a53dc4af34c7a669815ae5d513554e1c8cf252c02d47"

		"0a285a0501bad999bfe943c08f050235d7d68b1da55e63f73b60a57fce",

	"e1d9c16aa681708a45f5c7c4e215ceb66e011a2e9f0040713f18aefdb866d53cf76cab"

		"2868a39b9f7840edce4fef5a82be67335c77a6068e04112754f27ccf4e",

	"d197b1b33db0143e018b12f3d1d1479e6cdebdcc97c5c0f87f6902e072f457b5143f30"

		"602641b3d55cd335988cb36b84376060ecd532e039b742a239434af2d5",

	"8c0511f4c6e597c6ac6315d8f0362e225f3c501495ba23b868c005174dc4ee71115b59"

		"f9e60cd9532fa33e0f75aefe30225c583a186cd82bd4daea9724a3d3b8",

	"9d9e9c4cd21fe4be24d5b8244c759665",

};

static void

hexdump(FILE *f, const char *title, const unsigned char *s, int l) {

	int i;

	fprintf(f, "%s", title);

	for(i=0; i < l ; i++) {

		fprintf(f, " 0x%02x", s[i]);

	}

	fprintf(f, "\n");

}

static void

convert(unsigned char *dst, const unsigned char *src, int len) {

	int i;

	for(i=0; i < len; i++, dst++, src+=2) {

		unsigned int n;

		sscanf((char *)src, "%2x", &n);

		*dst = (unsigned char)n;

	}

	*dst = 0;

}

void

test_p5_pbkdf2(int i, char *digestname, testdata *test, const char *hex)

{

	const EVP_MD *digest;

	unsigned char *out;

	unsigned char *expected;

	int keylen, r;

	digest = EVP_get_digestbyname(digestname);

	if (digest == NULL) {

		fprintf(stderr, "unknown digest %s\n", digestname);

		EXIT(5);

	}

	if ((strlen(hex) % 2) != 0) {

		fprintf(stderr, "odd hex digest %s %i\n", digestname, i);

		EXIT(5);

	}

	keylen = strlen(hex) / 2;

	expected = OPENSSL_malloc(keylen + 1);

	out = OPENSSL_malloc(keylen + 1);

	if ((expected == NULL) || (out == NULL)) {

		fprintf(stderr, "malloc() failed\n");

		EXIT(5);

	}

	convert(expected, (const unsigned char *)hex, keylen);

	r = PKCS5_PBKDF2_HMAC(test->pass, test->passlen,

						  (const unsigned char *)test->salt, test->saltlen,

						  test->iter, digest, keylen, out);

	if (r == 0) {

		fprintf(stderr, "PKCS5_PBKDF2_HMAC(%s) failure test %i\n",

				digestname, i);

		EXIT(3);

	}

	if (memcmp(expected, out, keylen) != 0) {

		fprintf(stderr, "Wrong result for PKCS5_PBKDF2_HMAC(%s) test %i\n",

				digestname, i);

		hexdump(stderr, "expected: ", expected, keylen);

		hexdump(stderr, "result:   ", out, keylen);

		EXIT(2);

	}

	OPENSSL_free(expected);

	OPENSSL_free(out);

}

int main(int argc,char **argv) {

	int i;

	testdata *test = test_cases;

	CRYPTO_malloc_debug_init();

	CRYPTO_set_mem_debug_options(V_CRYPTO_MDEBUG_ALL);

	CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);

	OpenSSL_add_all_digests();

#ifndef OPENSSL_NO_ENGINE

	ENGINE_load_builtin_engines();

	ENGINE_register_all_digests();

#endif

	printf("PKCS5_PBKDF2_HMAC() tests ");

	for (i=0; test->pass != NULL; i++, test++) {

		test_p5_pbkdf2(i, "sha1", test, sha1_results[i]);

		test_p5_pbkdf2(i, "sha256", test, sha256_results[i]);

		test_p5_pbkdf2(i, "sha512", test, sha512_results[i]);

		printf(".");

	}

	printf(" done\n");

#ifndef OPENSSL_NO_ENGINE

	ENGINE_cleanup();

#endif

	EVP_cleanup();

	CRYPTO_cleanup_all_ex_data();

	ERR_remove_state(0);

	ERR_free_strings();

	CRYPTO_mem_leaks_fp(stderr);

	return 0;

}