58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
#include "api.h"
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#include "randombytes.h"
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#include <stdio.h>
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#include <string.h>
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#define NTESTS 100
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#define MAXMLEN 2048
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static void printbytes(const unsigned char *x, unsigned long long xlen) {
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unsigned long long i;
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for (i = 0; i < xlen; i++) {
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printf("%02x", x[i]);
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}
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printf("\n");
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}
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int main(void) {
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unsigned char sk[CRYPTO_SECRETKEYBYTES];
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unsigned char pk[CRYPTO_PUBLICKEYBYTES];
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unsigned char mi[MAXMLEN];
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unsigned char sm[MAXMLEN + CRYPTO_BYTES];
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unsigned long long smlen;
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unsigned long long mlen;
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int r;
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unsigned long long i, k;
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for (i = 0; i < MAXMLEN; i = (i == 0) ? i + 1 : i << 1) {
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randombytes(mi, i);
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crypto_sign_keypair(pk, sk);
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printbytes(pk, CRYPTO_PUBLICKEYBYTES);
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printbytes(sk, CRYPTO_SECRETKEYBYTES);
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crypto_sign(sm, &smlen, mi, i, sk);
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printbytes(sm, smlen);
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// By relying on m == sm we prevent having to allocate CRYPTO_BYTES
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// twice
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r = crypto_sign_open(sm, &mlen, sm, smlen, pk);
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if (r) {
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printf("ERROR: signature verification failed\n");
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return -1;
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}
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for (k = 0; k < i; k++) {
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if (sm[k] != mi[k]) {
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printf("ERROR: message recovery failed\n");
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return -1;
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}
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}
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}
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return 0;
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}
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