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/* Copyright 2014, Kenneth MacKay. Licensed under the BSD 2-clause license. */
#include "uECC.h"
#include <stdio.h>
#include <string.h>
#ifndef uECC_TEST_NUMBER_OF_ITERATIONS
#define uECC_TEST_NUMBER_OF_ITERATIONS 256
#endif
void vli_print(char *str, uint8_t *vli, unsigned int size) {
printf("%s ", str);
for(unsigned i=0; i<size; ++i) {
printf("%02X ", (unsigned)vli[i]);
}
printf("\n");
}
int main() {
uint8_t public[64];
uint8_t private[32];
uint8_t compressed_point[33];
uint8_t decompressed_point[64];
int i;
int c;
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 compression and decompression of %d random EC points\n",
uECC_TEST_NUMBER_OF_ITERATIONS);
for (c = 0; c < num_curves; ++c) {
for (i = 0; i < uECC_TEST_NUMBER_OF_ITERATIONS; ++i) {
printf(".");
fflush(stdout);
memset(public, 0, sizeof(public));
memset(decompressed_point, 0, sizeof(decompressed_point));
/* Generate arbitrary EC point (public) on Curve */
if (!uECC_make_key(public, private, curves[c])) {
printf("uECC_make_key() failed\n");
continue;
}
/* compress and decompress point */
uECC_compress(public, compressed_point, curves[c]);
uECC_decompress(compressed_point, decompressed_point, curves[c]);
if (memcmp(public, decompressed_point, sizeof(public)) != 0) {
printf("Original and decompressed points are not identical!\n");
vli_print("Original point = ", public, sizeof(public));
vli_print("Compressed point = ", compressed_point, sizeof(compressed_point));
vli_print("Decompressed point = ", decompressed_point, sizeof(decompressed_point));
}
}
printf("\n");
}
return 0;
}
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