48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "ed25519.h"
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#include <time.h>
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char msg[] = "Hello World";
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int main(int argc, char *argv[]) {
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unsigned char sk[64], vk[32], seed[32];
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unsigned char *sigmsg;
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FILE *f;
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int ret;
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ed25519_create_seed(seed);
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f = fopen("seed.txt", "wb");
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fwrite(seed, 32, 1, f);
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fclose(f);
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ed25519_create_keypair(vk, sk, "01234567890123456789012345678901");
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printf("got keypair\n");
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sigmsg = malloc(64);
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if (!sigmsg)
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return 1;
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ed25519_sign(sigmsg, (unsigned char *)msg, strlen(msg), sk);
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printf("got signature\n");
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f = fopen("sig.txt", "wb");
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fwrite(sigmsg, 64, 1, f);
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fclose(f);
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ret = ed25519_verify(sigmsg, "Hello World", strlen(msg), vk);
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printf("verified signature\n");
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if (ret == 0)
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printf("good!\n");
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else
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printf("bad\n");
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sigmsg[0] ^= 0x01;
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ret = ed25519_verify(sigmsg, msg, strlen(msg), vk);
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if (ret == 0)
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printf("bad: failed to detect simple corruption\n");
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else
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printf("good: detected simple corruption\n");
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return 0;
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}
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