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/* This program is released under the Common Public License V1.0
*
* You should have received a copy of Common Public License V1.0 along with
* with this program.
*/
/* Copyright IBM Corp. 2010, 2011 */
#include <fcntl.h>
#include <sys/errno.h>
#include <stdio.h>
#include <string.h>
#include <strings.h>
#include <stdlib.h>
#include "ica_api.h"
#include "testcase.h"
#define NR_RANDOM_TESTS 10000
void dump_ofb_data(unsigned char *iv, unsigned int iv_length,
unsigned char *key, unsigned int key_length,
unsigned char *input_data, unsigned int data_length,
unsigned char *output_data)
{
VV_(printf("IV \n"));
dump_array(iv, iv_length);
VV_(printf("Key \n"));
dump_array(key, key_length);
VV_(printf("Input Data\n"));
dump_array(input_data, data_length);
VV_(printf("Output Data\n"));
dump_array(output_data, data_length);
}
int load_random_test_data(unsigned char *data, unsigned int data_length,
unsigned char *iv, unsigned int iv_length,
unsigned char *key, unsigned int key_length)
{
int rc;
rc = ica_random_number_generate(data_length, data);
if (rc) {
VV_(printf("ica_random_number_generate with rc = %i errnor = %i\n",
rc, errno));
return TEST_FAIL;
}
rc = ica_random_number_generate(iv_length, iv);
if (rc) {
VV_(printf("ica_random_number_generate with rc = %i errnor = %i\n",
rc, errno));
return TEST_FAIL;
}
rc = ica_random_number_generate(key_length, key);
if (rc) {
VV_(printf("ica_random_number_generate with rc = %i errnor = %i\n",
rc, errno));
return TEST_FAIL;
}
return TEST_SUCC;
}
int random_des_ofb(int iteration, unsigned int data_length)
{
unsigned int iv_length = sizeof(ica_des_vector_t);
unsigned int key_length = sizeof(ica_des_key_single_t);
unsigned char iv[iv_length];
unsigned char tmp_iv[iv_length];
unsigned char key[key_length];
unsigned char input_data[data_length];
unsigned char encrypt[data_length];
unsigned char decrypt[data_length];
int rc = 0;
memset(encrypt, 0x00, data_length);
memset(decrypt, 0x00, data_length);
load_random_test_data(input_data, data_length, iv, iv_length, key,
key_length);
memcpy(tmp_iv, iv, iv_length);
VV_(printf("Test Parameters for iteration = %i\n", iteration));
VV_(printf("key length = %i, data length = %i, iv length = %i\n",
key_length, data_length, iv_length));
rc = ica_des_ofb(input_data, encrypt, data_length, key, tmp_iv, 1);
if (rc) {
VV_(printf("ica_des_ofb encrypt failed with rc = %i\n", rc));
dump_ofb_data(iv, iv_length, key, key_length, input_data,
data_length, encrypt);
}
if (!rc) {
VV_(printf("Encrypt:\n"));
dump_ofb_data(iv, iv_length, key, key_length, input_data,
data_length, encrypt);
}
if (rc) {
VV_(printf("DES OFB test exited after encryption\n"));
return TEST_FAIL;
}
memcpy(tmp_iv, iv, iv_length);
rc = ica_des_ofb(encrypt, decrypt, data_length, key, tmp_iv, 0);
if (rc) {
VV_(printf("ica_des_ofb decrypt failed with rc = %i\n", rc));
dump_ofb_data(iv, iv_length, key, key_length, encrypt,
data_length, decrypt);
return TEST_FAIL;
}
if (!rc) {
VV_(printf("Decrypt:\n"));
dump_ofb_data(iv, iv_length, key, key_length, encrypt,
data_length, decrypt);
}
if (memcmp(decrypt, input_data, data_length)) {
VV_(printf("Decryption Result does not match the original data!\n"));
VV_(printf("Original data:\n"));
dump_array(input_data, data_length);
VV_(printf("Decryption Result:\n"));
dump_array(decrypt, data_length);
rc++;
}
if (rc)
return TEST_FAIL;
return TEST_SUCC;
}
int main(int argc, char **argv)
{
#ifdef NO_CPACF
UNUSED(argc);
UNUSED(argv);
printf("Skipping DES-OFB test, because CPACF support disabled via config option.\n");
return TEST_SKIP;
#else
int rc = 0;
int error_count = 0;
int iteration;
unsigned int rdata;
unsigned int data_length = 1;
set_verbosity(argc, argv);
#ifdef ICA_FIPS
if (ica_fips_status() & ICA_FIPS_MODE) {
printf("All DES-OFB tests skipped."
" (DES not FIPS approved)\n");
return TEST_SKIP;
}
#endif /* ICA_FIPS */
for(iteration = 1; iteration <= NR_RANDOM_TESTS; iteration++) {
rc = random_des_ofb(iteration, data_length);
if (rc) {
V_(printf("random_des_ofb failed with rc = %i\n", rc));
error_count++;
goto out;
}
// add a value between 1 and 8 to data_length
if (ica_random_number_generate(sizeof(rdata), (unsigned char*) &rdata)) {
printf("ica_random_number_generate failed with errnor = %i\n",
errno);
goto out;
}
data_length += (rdata % 8) + 1;
}
out:
if (error_count) {
printf("%i DES-OFB tests failed.\n", error_count);
return TEST_FAIL;
}
printf("All DES-OFB tests passed.\n");
return TEST_SUCC;
#endif /* NO_CPACF */
}
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