mirror of
https://github.com/kmackay/micro-ecc.git
synced 2026-06-05 21:14:51 +00:00
Ken MacKay
80 lines
2.3 KiB
C
80 lines
2.3 KiB
C
/* Copyright 2014, Kenneth MacKay. Licensed under the BSD 2-clause license. */
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#include "uECC.h"
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#include <stdio.h>
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#include <string.h>
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#ifndef uECC_TEST_NUMBER_OF_ITERATIONS
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#define uECC_TEST_NUMBER_OF_ITERATIONS 256
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#endif
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void vli_print(char *str, uint8_t *vli, unsigned int size) {
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printf("%s ", str);
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for(unsigned i=0; i<size; ++i) {
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printf("%02X ", (unsigned)vli[i]);
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}
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printf("\n");
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}
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int main() {
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uint8_t public[64];
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uint8_t private[32];
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uint8_t compressed_point[33];
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uint8_t decompressed_point[64];
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int i;
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int c;
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const struct uECC_Curve_t * curves[5];
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int num_curves = 0;
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#if uECC_SUPPORTS_secp160r1
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curves[num_curves++] = uECC_secp160r1();
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#endif
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#if uECC_SUPPORTS_secp192r1
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curves[num_curves++] = uECC_secp192r1();
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#endif
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#if uECC_SUPPORTS_secp224r1
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curves[num_curves++] = uECC_secp224r1();
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#endif
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#if uECC_SUPPORTS_secp256r1
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curves[num_curves++] = uECC_secp256r1();
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#endif
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#if uECC_SUPPORTS_secp256k1
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curves[num_curves++] = uECC_secp256k1();
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#endif
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printf("Testing compression and decompression of %d random EC points\n",
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uECC_TEST_NUMBER_OF_ITERATIONS);
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for (c = 0; c < num_curves; ++c) {
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for (i = 0; i < uECC_TEST_NUMBER_OF_ITERATIONS; ++i) {
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printf(".");
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fflush(stdout);
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memset(public, 0, sizeof(public));
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memset(decompressed_point, 0, sizeof(decompressed_point));
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/* Generate arbitrary EC point (public) on Curve */
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if (!uECC_make_key(public, private, curves[c])) {
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printf("uECC_make_key() failed\n");
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continue;
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}
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/* compress and decompress point */
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uECC_compress(public, compressed_point, curves[c]);
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uECC_decompress(compressed_point, decompressed_point, curves[c]);
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if (memcmp(public, decompressed_point, sizeof(public)) != 0) {
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printf("Original and decompressed points are not identical!\n");
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vli_print("Original point = ", public, sizeof(public));
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vli_print("Compressed point = ", compressed_point, sizeof(compressed_point));
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vli_print("Decompressed point = ", decompressed_point, sizeof(decompressed_point));
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}
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}
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printf("\n");
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}
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return 0;
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}
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