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matrixssl-base-zero.c
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/* Testing MatrixSSL's pstm_exptmod with base zero
* by Hanno Böck, license: CC0
*/
#include <stdio.h>
#include <stdlib.h>
#include <openssl/bn.h>
#include <crypto/cryptoApi.h>
unsigned char a1[] = {
0x0
};
unsigned int a1_len = 1;
unsigned char b1[] = {
0xaa
};
unsigned int b1_len = 1;
unsigned char m1[] = {
0xbb
};
unsigned int m1_len = 1;
char *matrixtest(unsigned char *a_raw, int a_len, unsigned char *b_raw,
int b_len, unsigned char *m_raw, int m_len)
{
unsigned char *rr = malloc(4096);
char *buf, *buf_ptr;
int i, s;
pstm_int a, b, m, r;
if (pstm_init_for_read_unsigned_bin(NULL, &a, a_len) < 0) {
printf("pstm_init_for_read_unsigned_bin a error\n");
return 0;
}
if (pstm_read_unsigned_bin(&a, a_raw, a_len) != 0) {
printf("pstm_read_unsigned_bin a error\n");
return 0;
}
if (pstm_init_for_read_unsigned_bin(NULL, &b, b_len) < 0) {
printf("pstm_init_for_read_unsigned_bin b error\n");
return 0;
}
if (pstm_read_unsigned_bin(&b, b_raw, b_len) != 0) {
printf("pstm_read_unsigned_bin b error\n");
return 0;
}
if (pstm_init_for_read_unsigned_bin(NULL, &m, m_len) < 0) {
printf("pstm_init_for_read_unsigned_bin c error\n");
return 0;
}
if (pstm_read_unsigned_bin(&m, m_raw, m_len) != 0) {
printf("pstm_read_unsigned_bin c error\n");
return 0;
}
if (pstm_init(NULL, &r) != 0) {
printf("pstm_init r error\n");
return 0;
}
if (pstm_exptmod(NULL, &a, &b, &m, &r) != 0) {
printf("pstm_exptmod error\n");
return 0;
}
if (pstm_to_unsigned_bin(0, &r, rr) < 0) {
printf("pstm_to_unsigned_bin error\n");
return 0;
}
s = pstm_unsigned_bin_size(&r);
buf = buf_ptr = malloc(s * 2 + 1);
for (i = 0; i < s; i++) {
buf_ptr += sprintf(buf_ptr, "%02X", rr[i]);
}
printf("matrixssl:\n%s\n", buf);
return buf;
}
int main(int argc, char *argv[])
{
matrixtest(a1, a1_len, b1, b1_len, m1, m1_len);
}