100 lines
2.9 KiB
C
100 lines
2.9 KiB
C
#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <time.h>
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//#define ED25519_DLL
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#include "src/ed25519.h"
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#include "src/ge.h"
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#include "src/sc.h"
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const char message[] = "Hello, world!";
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int main(int argc, char *argv[]) {
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unsigned char public_key[32], private_key[64], seed[32], scalar[32];
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unsigned char signature[64];
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clock_t start;
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clock_t end;
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int i;
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/* create a random seed, and a keypair out of that seed */
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ed25519_create_seed(seed);
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ed25519_create_keypair(public_key, private_key, seed);
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/* create signature on the message with the keypair */
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ed25519_sign(signature, message, strlen(message), public_key, private_key);
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/* verify the signature */
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if (ed25519_verify(signature, message, strlen(message), public_key)) {
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printf("valid signature\n");
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} else {
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printf("invalid signature\n");
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}
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/* create scalar and add it to the keypair */
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ed25519_create_seed(scalar);
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ed25519_add_scalar(public_key, private_key, scalar);
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/* create signature with the new keypair */
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ed25519_sign(signature, message, strlen(message), public_key, private_key);
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/* verify the signature with the new keypair */
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if (ed25519_verify(signature, message, strlen(message), public_key)) {
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printf("valid signature\n");
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} else {
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printf("invalid signature\n");
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}
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/* make a slight adjustment and verify again */
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signature[44] ^= 0x10;
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if (ed25519_verify(signature, message, strlen(message), public_key)) {
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printf("did not detect signature change\n");
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} else {
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printf("correctly detected signature change\n");
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}
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/* test performance */
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printf("testing key generation performance: ");
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start = clock();
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for (i = 0; i < 10000; ++i) {
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ed25519_create_seed(seed);
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ed25519_create_keypair(public_key, private_key, seed);
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}
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end = clock();
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printf("%fus per seed and keypair\n", ((double) ((end - start) * 1000)) / CLOCKS_PER_SEC / i * 1000);
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printf("testing sign performance: ");
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start = clock();
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for (i = 0; i < 10000; ++i) {
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ed25519_sign(signature, message, strlen(message), public_key, private_key);
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}
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end = clock();
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printf("%fus per signature\n", ((double) ((end - start) * 1000)) / CLOCKS_PER_SEC / i * 1000);
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printf("testing verify performance: ");
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start = clock();
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for (i = 0; i < 10000; ++i) {
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ed25519_verify(signature, message, strlen(message), public_key);
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}
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end = clock();
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printf("%fus per signature\n", ((double) ((end - start) * 1000)) / CLOCKS_PER_SEC / i * 1000);
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printf("testing scalar addition performance: ");
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start = clock();
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for (i = 0; i < 10000; ++i) {
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ed25519_add_scalar(public_key, private_key, scalar);
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}
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end = clock();
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printf("%fus per signature\n", ((double) ((end - start) * 1000)) / CLOCKS_PER_SEC / i * 1000);
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return 0;
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}
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