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/* Copyright 2014, Kenneth MacKay. Licensed under the BSD 2-clause license. */
#include "uECC.h"
#include <stdio.h>
#include <string.h>
void vli_print(uint8_t *vli, unsigned int size) {
for(unsigned i=0; i<size; ++i) {
printf("%02X ", (unsigned)vli[i]);
}
}
int main() {
int i, c;
uint8_t private1[32] = {0};
uint8_t private2[32] = {0};
uint8_t public1[64] = {0};
uint8_t public2[64] = {0};
uint8_t secret1[32] = {0};
uint8_t secret2[32] = {0};
const struct uECC_Curve_t * curves[5];
int num_curves = 0;
#if uECC_SUPPORTS_secp160r1
curves[num_curves++] = uECC_secp160r1();
#endif
#if uECC_SUPPORTS_secp192r1
curves[num_curves++] = uECC_secp192r1();
#endif
#if uECC_SUPPORTS_secp224r1
curves[num_curves++] = uECC_secp224r1();
#endif
#if uECC_SUPPORTS_secp256r1
curves[num_curves++] = uECC_secp256r1();
#endif
#if uECC_SUPPORTS_secp256k1
curves[num_curves++] = uECC_secp256k1();
#endif
printf("Testing 256 random private key pairs\n");
for (c = 0; c < num_curves; ++c) {
for (i = 0; i < 256; ++i) {
printf(".");
fflush(stdout);
if (!uECC_make_key(public1, private1, curves[c]) ||
!uECC_make_key(public2, private2, curves[c])) {
printf("uECC_make_key() failed\n");
return 1;
}
if (!uECC_shared_secret(public2, private1, secret1, curves[c])) {
printf("shared_secret() failed (1)\n");
return 1;
}
if (!uECC_shared_secret(public1, private2, secret2, curves[c])) {
printf("shared_secret() failed (2)\n");
return 1;
}
if (memcmp(secret1, secret2, sizeof(secret1)) != 0) {
printf("Shared secrets are not identical!\n");
printf("Private key 1 = ");
vli_print(private1, 32);
printf("\n");
printf("Private key 2 = ");
vli_print(private2, 32);
printf("\n");
printf("Public key 1 = ");
vli_print(public1, 64);
printf("\n");
printf("Public key 2 = ");
vli_print(public2, 64);
printf("\n");
printf("Shared secret 1 = ");
vli_print(secret1, 32);
printf("\n");
printf("Shared secret 2 = ");
vli_print(secret2, 32);
printf("\n");
}
}
printf("\n");
}
return 0;
}
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