/*
 * Test program for AES
 * Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi>
 *
 * This software may be distributed under the terms of the BSD license.
 * See README for more details.
 */

#include "includes.h"

#include "common.h"
#include "crypto/crypto.h"
#include "crypto/aes_wrap.h"

#define BLOCK_SIZE 16

static void test_aes_perf(void)
{
#if 0 /* this did not seem to work with new compiler?! */
#ifdef __i386__
#define rdtscll(val) \
     __asm__ __volatile__("rdtsc" : "=A" (val))
	const int num_iters = 10;
	int i;
	unsigned int start, end;
	u8 key[16], pt[16], ct[16];
	void *ctx;

	printf("keySetupEnc:");
	for (i = 0; i < num_iters; i++) {
		rdtscll(start);
		ctx = aes_encrypt_init(key, 16);
		rdtscll(end);
		aes_encrypt_deinit(ctx);
		printf(" %d", end - start);
	}
	printf("\n");

	printf("Encrypt:");
	ctx = aes_encrypt_init(key, 16);
	for (i = 0; i < num_iters; i++) {
		rdtscll(start);
		aes_encrypt(ctx, pt, ct);
		rdtscll(end);
		printf(" %d", end - start);
	}
	aes_encrypt_deinit(ctx);
	printf("\n");
#endif /* __i386__ */
#endif
}


/*
 * GCM test vectors from
 * http://csrc.nist.gov/groups/ST/toolkit/BCM/documents/proposedmodes/gcm/gcm-spec.pdf
 */
struct gcm_test_vector {
	char *k;
	char *p;
	char *aad;
	char *iv;
	char *c;
	char *t;
};

static const struct gcm_test_vector gcm_tests[] = {
	{
		/* Test Case 1 */
		"00000000000000000000000000000000",
		"",
		"",
		"000000000000000000000000",
		"",
		"58e2fccefa7e3061367f1d57a4e7455a"
	},
	{
		/* Test Case 2 */
		"00000000000000000000000000000000",
		"00000000000000000000000000000000",
		"",
		"000000000000000000000000",
		"0388dace60b6a392f328c2b971b2fe78",
		"ab6e47d42cec13bdf53a67b21257bddf"
	},
	{
		/* Test Case 3 */
		"feffe9928665731c6d6a8f9467308308",
		"d9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a721c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b391aafd255",
		"",
		"cafebabefacedbaddecaf888",
		"42831ec2217774244b7221b784d0d49ce3aa212f2c02a4e035c17e2329aca12e21d514b25466931c7d8f6a5aac84aa051ba30b396a0aac973d58e091473f5985",
		"4d5c2af327cd64a62cf35abd2ba6fab4"
	},
	{
		/* Test Case 4 */
		"feffe9928665731c6d6a8f9467308308",
		"d9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a721c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b39",
		"feedfacedeadbeeffeedfacedeadbeefabaddad2",
		"cafebabefacedbaddecaf888",
		"42831ec2217774244b7221b784d0d49ce3aa212f2c02a4e035c17e2329aca12e21d514b25466931c7d8f6a5aac84aa051ba30b396a0aac973d58e091",
		"5bc94fbc3221a5db94fae95ae7121a47"
	},
	{
		/* Test Case 5 */
		"feffe9928665731c6d6a8f9467308308",
		"d9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a721c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b39",
		"feedfacedeadbeeffeedfacedeadbeefabaddad2",
		"cafebabefacedbad",
		"61353b4c2806934a777ff51fa22a4755699b2a714fcdc6f83766e5f97b6c742373806900e49f24b22b097544d4896b424989b5e1ebac0f07c23f4598",
		"3612d2e79e3b0785561be14aaca2fccb"
	},
	{
		/* Test Case 6 */
		"feffe9928665731c6d6a8f9467308308",
		"d9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a721c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b39",
		"feedfacedeadbeeffeedfacedeadbeefabaddad2",
		"9313225df88406e555909c5aff5269aa6a7a9538534f7da1e4c303d2a318a728c3c0c95156809539fcf0e2429a6b525416aedbf5a0de6a57a637b39b",
		"8ce24998625615b603a033aca13fb894be9112a5c3a211a8ba262a3cca7e2ca701e4a9a4fba43c90ccdcb281d48c7c6fd62875d2aca417034c34aee5",
		"619cc5aefffe0bfa462af43c1699d050"
	},
	{
		/* Test Case 7 */
		"000000000000000000000000000000000000000000000000",
		"",
		"",
		"000000000000000000000000",
		"",
		"cd33b28ac773f74ba00ed1f312572435"
	},
	{
		/* Test Case 8 */
		"000000000000000000000000000000000000000000000000",
		"00000000000000000000000000000000",
		"",
		"000000000000000000000000",
		"98e7247c07f0fe411c267e4384b0f600",
		"2ff58d80033927ab8ef4d4587514f0fb"
	},
	{
		/* Test Case 9 */
		"feffe9928665731c6d6a8f9467308308feffe9928665731c",
		"d9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a721c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b391aafd255",
		"",
		"cafebabefacedbaddecaf888",
		"3980ca0b3c00e841eb06fac4872a2757859e1ceaa6efd984628593b40ca1e19c7d773d00c144c525ac619d18c84a3f4718e2448b2fe324d9ccda2710acade256",
		"9924a7c8587336bfb118024db8674a14"
	},
	{
		/* Test Case 10 */
		"feffe9928665731c6d6a8f9467308308feffe9928665731c",
		"d9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a721c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b39",
		"feedfacedeadbeeffeedfacedeadbeefabaddad2",
		"cafebabefacedbaddecaf888",
		"3980ca0b3c00e841eb06fac4872a2757859e1ceaa6efd984628593b40ca1e19c7d773d00c144c525ac619d18c84a3f4718e2448b2fe324d9ccda2710",
		"2519498e80f1478f37ba55bd6d27618c"
	},
	{
		/* Test Case 11 */
		"feffe9928665731c6d6a8f9467308308feffe9928665731c",
		"d9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a721c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b39",
		"feedfacedeadbeeffeedfacedeadbeefabaddad2",
		"cafebabefacedbad",
		"0f10f599ae14a154ed24b36e25324db8c566632ef2bbb34f8347280fc4507057fddc29df9a471f75c66541d4d4dad1c9e93a19a58e8b473fa0f062f7",
		"65dcc57fcf623a24094fcca40d3533f8"
	},
	{
		/* Test Case 12 */
		"feffe9928665731c6d6a8f9467308308feffe9928665731c",
		"d9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a721c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b39",
		"feedfacedeadbeeffeedfacedeadbeefabaddad2",
		"9313225df88406e555909c5aff5269aa6a7a9538534f7da1e4c303d2a318a728c3c0c95156809539fcf0e2429a6b525416aedbf5a0de6a57a637b39b",
		"d27e88681ce3243c4830165a8fdcf9ff1de9a1d8e6b447ef6ef7b79828666e4581e79012af34ddd9e2f037589b292db3e67c036745fa22e7e9b7373b",
		"dcf566ff291c25bbb8568fc3d376a6d9"
	},
	{
		/* Test Case 13 */
		"0000000000000000000000000000000000000000000000000000000000000000",
		"",
		"",
		"000000000000000000000000",
		"",
		"530f8afbc74536b9a963b4f1c4cb738b"
	},
	{
		/* Test Case 14 */
		"0000000000000000000000000000000000000000000000000000000000000000",
		"00000000000000000000000000000000",
		"",
		"000000000000000000000000",
		"cea7403d4d606b6e074ec5d3baf39d18",
		"d0d1c8a799996bf0265b98b5d48ab919"
	},
	{
		/* Test Case 15 */
		"feffe9928665731c6d6a8f9467308308feffe9928665731c6d6a8f9467308308",
		"d9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a721c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b391aafd255",
		"",
		"cafebabefacedbaddecaf888",
		"522dc1f099567d07f47f37a32a84427d643a8cdcbfe5c0c97598a2bd2555d1aa8cb08e48590dbb3da7b08b1056828838c5f61e6393ba7a0abcc9f662898015ad",
		"b094dac5d93471bdec1a502270e3cc6c"
	},
	{
		/* Test Case 16 */
		"feffe9928665731c6d6a8f9467308308feffe9928665731c6d6a8f9467308308",
		"d9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a721c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b39",
		"feedfacedeadbeeffeedfacedeadbeefabaddad2",
		"cafebabefacedbaddecaf888",
		"522dc1f099567d07f47f37a32a84427d643a8cdcbfe5c0c97598a2bd2555d1aa8cb08e48590dbb3da7b08b1056828838c5f61e6393ba7a0abcc9f662",
		"76fc6ece0f4e1768cddf8853bb2d551b"
	},
	{
		/* Test Case 17 */
		"feffe9928665731c6d6a8f9467308308feffe9928665731c6d6a8f9467308308",
		"d9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a721c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b39",
		"feedfacedeadbeeffeedfacedeadbeefabaddad2",
		"cafebabefacedbad",
		"c3762df1ca787d32ae47c13bf19844cbaf1ae14d0b976afac52ff7d79bba9de0feb582d33934a4f0954cc2363bc73f7862ac430e64abe499f47c9b1f",
		"3a337dbf46a792c45e454913fe2ea8f2"
	},
	{
		/* Test Case 18 */
		"feffe9928665731c6d6a8f9467308308feffe9928665731c6d6a8f9467308308",
		"d9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a721c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b39",
		"feedfacedeadbeeffeedfacedeadbeefabaddad2",
		"9313225df88406e555909c5aff5269aa6a7a9538534f7da1e4c303d2a318a728c3c0c95156809539fcf0e2429a6b525416aedbf5a0de6a57a637b39b",
		"5a8def2f0c9e53f1f75d7853659e2a20eeb2b22aafde6419a058ab4f6f746bf40fc0c3b780f244452da3ebf1c5d82cdea2418997200ef82e44ae7e3f",
		"a44a8266ee1c8eb0c8b5d4cf5ae9f19a"
	}
};


static int test_gcm(void)
{
	int ret = 0;
	int i;
	u8 k[32], aad[32], iv[64], t[16], tag[16];
	u8 p[64], c[64], tmp[64];
	size_t k_len, p_len, aad_len, iv_len;

	for (i = 0; i < ARRAY_SIZE(gcm_tests); i++) {
		const struct gcm_test_vector *tc = &gcm_tests[i];

		k_len = os_strlen(tc->k) / 2;
		if (hexstr2bin(tc->k, k, k_len)) {
			printf("Invalid GCM test vector %d (k)\n", i);
			ret++;
			continue;
		}

		p_len = os_strlen(tc->p) / 2;
		if (hexstr2bin(tc->p, p, p_len)) {
			printf("Invalid GCM test vector %d (p)\n", i);
			ret++;
			continue;
		}

		aad_len = os_strlen(tc->aad) / 2;
		if (hexstr2bin(tc->aad, aad, aad_len)) {
			printf("Invalid GCM test vector %d (aad)\n", i);
			ret++;
			continue;
		}

		iv_len = os_strlen(tc->iv) / 2;
		if (hexstr2bin(tc->iv, iv, iv_len)) {
			printf("Invalid GCM test vector %d (iv)\n", i);
			ret++;
			continue;
		}

		if (hexstr2bin(tc->c, c, p_len)) {
			printf("Invalid GCM test vector %d (c)\n", i);
			ret++;
			continue;
		}

		if (hexstr2bin(tc->t, t, sizeof(t))) {
			printf("Invalid GCM test vector %d (t)\n", i);
			ret++;
			continue;
		}

		if (aes_gcm_ae(k, k_len, iv, iv_len, p, p_len, aad, aad_len,
			       tmp, tag) < 0) {
			printf("GCM-AE failed (test case %d)\n", i);
			ret++;
			continue;
		}

		if (os_memcmp(c, tmp, p_len) != 0) {
			printf("GCM-AE mismatch (test case %d)\n", i);
			ret++;
		}

		if (os_memcmp(tag, t, sizeof(tag)) != 0) {
			printf("GCM-AE tag mismatch (test case %d)\n", i);
			ret++;
		}

		if (p_len == 0) {
			if (aes_gmac(k, k_len, iv, iv_len, aad, aad_len, tag) <
			    0) {
				printf("GMAC failed (test case %d)\n", i);
				ret++;
				continue;
			}

			if (os_memcmp(tag, t, sizeof(tag)) != 0) {
				printf("GMAC tag mismatch (test case %d)\n", i);
				ret++;
			}
		}

		if (aes_gcm_ad(k, k_len, iv, iv_len, c, p_len, aad, aad_len,
			       t, tmp) < 0) {
			printf("GCM-AD failed (test case %d)\n", i);
			ret++;
			continue;
		}

		if (os_memcmp(p, tmp, p_len) != 0) {
			printf("GCM-AD mismatch (test case %d)\n", i);
			ret++;
		}
	}

	return ret;
}


static int test_nist_key_wrap_ae(const char *fname)
{
	FILE *f;
	int ret = 0;
	char buf[15000], *pos, *pos2;
	u8 bin[2000], k[32], p[1024], c[1024 + 8], result[1024 + 8];
	size_t bin_len, k_len = 0, p_len = 0, c_len = 0;
	int ok = 0;

	printf("NIST KW AE tests from %s\n", fname);

	f = fopen(fname, "r");
	if (f == NULL) {
		printf("%s does not exist - cannot validate test vectors\n",
		       fname);
		return 1;
	}

	while (fgets(buf, sizeof(buf), f)) {
		if (buf[0] == '#')
			continue;
		pos = os_strchr(buf, '=');
		if (pos == NULL)
			continue;
		pos2 = pos - 1;
		while (pos2 >= buf && *pos2 == ' ')
			*pos2-- = '\0';
		*pos++ = '\0';
		while (*pos == ' ')
			*pos++ = '\0';
		pos2 = os_strchr(pos, '\r');
		if (!pos2)
			pos2 = os_strchr(pos, '\n');
		if (pos2)
			*pos2 = '\0';
		else
			pos2 = pos + os_strlen(pos);

		if (buf[0] == '[') {
			printf("%s = %s\n", buf, pos);
			continue;
		}

		if (os_strcmp(buf, "COUNT") == 0) {
			printf("Test %s - ", pos);
			continue;
		}

		bin_len = os_strlen(pos);
		if (bin_len > sizeof(bin) * 2) {
			printf("Too long binary data (%s)\n", buf);
			return 1;
		}
		if (bin_len & 0x01) {
			printf("Odd number of hexstring values (%s)\n",
				buf);
			return 1;
		}
		bin_len /= 2;
		if (hexstr2bin(pos, bin, bin_len) < 0) {
			printf("Invalid hex string '%s' (%s)\n", pos, buf);
			return 1;
		}

		if (os_strcmp(buf, "K") == 0) {
			if (bin_len > sizeof(k)) {
				printf("Too long K (%u)\n", (unsigned) bin_len);
				return 1;
			}
			os_memcpy(k, bin, bin_len);
			k_len = bin_len;
			continue;
		}

		if (os_strcmp(buf, "P") == 0) {
			if (bin_len > sizeof(p)) {
				printf("Too long P (%u)\n", (unsigned) bin_len);
				return 1;
			}
			os_memcpy(p, bin, bin_len);
			p_len = bin_len;
			continue;
		}

		if (os_strcmp(buf, "C") != 0) {
			printf("Unexpected field '%s'\n", buf);
			continue;
		}

		if (bin_len > sizeof(c)) {
			printf("Too long C (%u)\n", (unsigned) bin_len);
			return 1;
		}
		os_memcpy(c, bin, bin_len);
		c_len = bin_len;

		if (p_len % 8 != 0 || c_len % 8 != 0 || c_len - p_len != 8) {
			printf("invalid parameter length (p_len=%u c_len=%u)\n",
			       (unsigned) p_len, (unsigned) c_len);
			continue;
		}

		if (aes_wrap(k, k_len, p_len / 8, p, result)) {
			printf("aes_wrap() failed\n");
			ret++;
			continue;
		}

		if (os_memcmp(c, result, c_len) == 0) {
			printf("OK\n");
			ok++;
		} else {
			printf("FAIL\n");
			ret++;
		}
	}

	fclose(f);

	if (ret)
		printf("Test case failed\n");
	else
		printf("%d test vectors OK\n", ok);

	return ret;
}


static int test_nist_key_wrap_ad(const char *fname)
{
	FILE *f;
	int ret = 0;
	char buf[15000], *pos, *pos2;
	u8 bin[2000], k[32], p[1024], c[1024 + 8], result[1024 + 8];
	size_t bin_len, k_len = 0, p_len = 0, c_len = 0;
	int ok = 0;
	int fail;

	printf("NIST KW AD tests from %s\n", fname);

	f = fopen(fname, "r");
	if (f == NULL) {
		printf("%s does not exist - cannot validate test vectors\n",
		       fname);
		return 1;
	}

	while (fgets(buf, sizeof(buf), f)) {
		if (buf[0] == '#')
			continue;
		fail = 0;
		pos = os_strchr(buf, '=');
		if (pos == NULL) {
			if (os_strncmp(buf, "FAIL", 4) == 0) {
				fail = 1;
				goto skip_val_parse;
			}
			continue;
		}
		pos2 = pos - 1;
		while (pos2 >= buf && *pos2 == ' ')
			*pos2-- = '\0';
		*pos++ = '\0';
		while (*pos == ' ')
			*pos++ = '\0';
		pos2 = os_strchr(pos, '\r');
		if (!pos2)
			pos2 = os_strchr(pos, '\n');
		if (pos2)
			*pos2 = '\0';
		else
			pos2 = pos + os_strlen(pos);

		if (buf[0] == '[') {
			printf("%s = %s\n", buf, pos);
			continue;
		}

		if (os_strcmp(buf, "COUNT") == 0) {
			printf("Test %s - ", pos);
			continue;
		}

		bin_len = os_strlen(pos);
		if (bin_len > sizeof(bin) * 2) {
			printf("Too long binary data (%s)\n", buf);
			return 1;
		}
		if (bin_len & 0x01) {
			printf("Odd number of hexstring values (%s)\n",
				buf);
			return 1;
		}
		bin_len /= 2;
		if (hexstr2bin(pos, bin, bin_len) < 0) {
			printf("Invalid hex string '%s' (%s)\n", pos, buf);
			return 1;
		}

		if (os_strcmp(buf, "K") == 0) {
			if (bin_len > sizeof(k)) {
				printf("Too long K (%u)\n", (unsigned) bin_len);
				return 1;
			}
			os_memcpy(k, bin, bin_len);
			k_len = bin_len;
			continue;
		}

		if (os_strcmp(buf, "C") == 0) {
			if (bin_len > sizeof(c)) {
				printf("Too long C (%u)\n", (unsigned) bin_len);
				return 1;
			}
			os_memcpy(c, bin, bin_len);
			c_len = bin_len;
			continue;
		}

	skip_val_parse:
		if (!fail) {
			if (os_strcmp(buf, "P") != 0) {
				printf("Unexpected field '%s'\n", buf);
				continue;
			}

			if (bin_len > sizeof(p)) {
				printf("Too long P (%u)\n", (unsigned) bin_len);
				return 1;
			}
			os_memcpy(p, bin, bin_len);
			p_len = bin_len;

			if (p_len % 8 != 0 || c_len % 8 != 0 ||
			    c_len - p_len != 8) {
				printf("invalid parameter length (p_len=%u c_len=%u)\n",
				       (unsigned) p_len, (unsigned) c_len);
				continue;
			}
		}

		if (aes_unwrap(k, k_len, (c_len / 8) - 1, c, result)) {
			if (fail) {
				printf("OK (fail reported)\n");
				ok++;
				continue;
			}
			printf("aes_unwrap() failed\n");
			ret++;
			continue;
		}

		if (fail) {
			printf("FAIL (mismatch not reported)\n");
			ret++;
		} else if (os_memcmp(p, result, p_len) == 0) {
			printf("OK\n");
			ok++;
		} else {
			printf("FAIL\n");
			ret++;
		}
	}

	fclose(f);

	if (ret)
		printf("Test case failed\n");
	else
		printf("%d test vectors OK\n", ok);

	return ret;
}


int main(int argc, char *argv[])
{
	int ret = 0;

	if (argc >= 3 && os_strcmp(argv[1], "NIST-KW-AE") == 0)
		ret += test_nist_key_wrap_ae(argv[2]);
	else if (argc >= 3 && os_strcmp(argv[1], "NIST-KW-AD") == 0)
		ret += test_nist_key_wrap_ad(argv[2]);

	test_aes_perf();

	ret += test_gcm();

	if (ret)
		printf("FAILED!\n");

	return ret;
}