test_crypto.c

/*
Copyright (c) 2013 Eugene Crosser

This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.

Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:

    1. The origin of this software must not be misrepresented; you must
    not claim that you wrote the original software. If you use this
    software in a product, an acknowledgment in the product documentation
    would be appreciated but is not required.

    2. Altered source versions must be plainly marked as such, and must
    not be misrepresented as being the original software.

    3. This notice may not be removed or altered from any source
    distribution.
*/

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include "crypto.h"

#define printh(x) printh_f(#x, x, sizeof(x))
void printh_f(char *p, unsigned char *x, size_t l)
{
	size_t i;
	printf("%s:", p);
	for (i=0; i<l; i++) printf(" %02x", x[i]);
	printf("\n");
}

int test_enc_dec(int iface1, int iface2)
{
	unsigned long err;
	unsigned char pt[48] = "the quick brown fox jumps over a lazy dog";
	unsigned char key[16] = {0x0f,0x65,0xd1,0x3a,0xfe,0xcb,0xc4,0xb9,
				0x52,0xb1,0x60,0xcf,0xe8,0x55,0x6a,0xdd};
	unsigned char ct[64];
	unsigned char re[48];

	printf("%d -> %d\n", iface1, iface2);
	printh(pt);
	printh(key);
	if (select_crypto_if(iface1)) return 1;
	memset(ct, 0xfe, sizeof(ct));
	if ((err = encrypt(key, sizeof(key), pt, ct, sizeof(pt)))) {
		printf("encrypt error: %s\n", crypto_errstr(err));
		return 1;
	}
	printh(ct);
	if (select_crypto_if(iface2)) return 1;
	memset(re, 0xab, sizeof(re));
	if ((err = decrypt(key, sizeof(key), ct, re, sizeof(re)))) {
		printf("decrypt error: %s\n", crypto_errstr(err));
		return 1;
	}
	printh(re);
	if (memcmp(pt, re, sizeof(pt))) {
		printf("fail\n");
		return 1;
	}
	return 0;
}

int test_sha(int iface)
{
	unsigned char sha1[20];
	unsigned long err;
	size_t shalen;
	unsigned char spt[3] = "abc";
	unsigned char sstd[20] = {0xA9,0x99,0x3E,0x36,0x47,0x06,0x81,0x6A,
		0xBA,0x3E,0x25,0x71,0x78,0x50,0xC2,0x6C,0x9C,0xD0,0xD8,0x9D};

	if (select_crypto_if(iface)) return 1;
	memset(sha1, 0, sizeof(sha1));
	shalen = sizeof(sha1);
	if ((err = hash(spt, sizeof(spt), sha1, &shalen))) {
		printf("hash error: %s\n", crypto_errstr(err));
		return 1;
	}
	printf("%d: len=%d ", iface, (int)shalen);
	printh(sha1);
	if (memcmp(sha1, sstd, sizeof(sstd))) {
		printf("fail\n");
		return 1;
	}
	return 0;
}

int test_hmac(int iface)
{
	unsigned char hmac1[20];
	unsigned long err;
	size_t hmaclen;
	unsigned char hpt[28] = "what do ya want for nothing?";
	unsigned char hkey[4] = "Jefe";
	unsigned char hstd[20] = {0xef,0xfc,0xdf,0x6a,0xe5,0xeb,0x2f,0xa2,
		0xd2,0x74,0x16,0xd5,0xf1,0x84,0xdf,0x9c,0x25,0x9a,0x7c,0x79};

	if (select_crypto_if(iface)) return 1;
	memset(hmac1, 0, sizeof(hmac1));
	hmaclen = sizeof(hmac1);
	if ((err = hmac(hkey, sizeof(hkey), hpt, sizeof(hpt),
						hmac1, &hmaclen))) {
		printf("hash error: %s\n", crypto_errstr(err));
		return 1;
	}
	printf("%d: len=%d ", iface, (int)hmaclen);
	printh(hmac1);
	if (memcmp(hmac1, hstd, sizeof(hstd))) {
		printf("fail\n");
		return 1;
	}
	return 0;
}

int main(int argc, char *argv[])
{
	int rc, maxrc = 0;
	int numifs, i, j;
	const char *name;

	for (numifs = 0; (name = crypto_init(numifs)); numifs++)
		printf("%d: %s\n", numifs, name);
	printf("Testing %d interfaces\n\n", numifs);

	for (i = 0; i < numifs; i++)
		if ((rc = test_sha(i)) > maxrc) maxrc = rc;
	for (i = 0; i < numifs; i++)
		if ((rc = test_hmac(i)) > maxrc) maxrc = rc;
	for (i = 0; i < numifs; i++) for (j = 0; j < numifs; j++)
		if ((rc = test_enc_dec(i,j)) > maxrc) maxrc = rc;
	return maxrc;
}