123 lines
3.1 KiB
C
123 lines
3.1 KiB
C
#include <stdio.h>
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#include <string.h>
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#include "../xmss.h"
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#define MLEN 3491
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#define SIGNATURES 50
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unsigned char mi[MLEN];
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unsigned long long smlen;
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unsigned long long mlen;
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int main()
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{
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int r;
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unsigned long long i;
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unsigned int n = 32;
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unsigned int h = 8;
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unsigned int w = 16;
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unsigned long errors = 0;
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unsigned char sk[4*n+4];
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unsigned char pk[2*n];
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xmss_params p;
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xmss_params *params = &p;
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xmss_set_params(params, n, h, w);
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unsigned long long signature_length = 4+n+params->wots_par.keysize+h*n;
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unsigned char mo[MLEN+signature_length];
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unsigned char sm[MLEN+signature_length];
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FILE *urandom = fopen("/dev/urandom", "r");
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for (i = 0; i < MLEN; i++) mi[i] = fgetc(urandom);
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printf("keypair\n");
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xmss_keypair(pk, sk, params);
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// check pub_seed in SK
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for (i = 0; i < n; i++) {
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if (pk[n+i] != sk[4+2*n+i]) printf("pk.pub_seed != sk.pub_seed %llu",i);
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if (pk[i] != sk[4+3*n+i]) printf("pk.root != sk.root %llu",i);
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}
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// check index
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unsigned long idx = ((unsigned long)sk[0] << 24) | ((unsigned long)sk[1] << 16) | ((unsigned long)sk[2] << 8) | sk[3];
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if (idx) printf("\nidx != 0 %lu\n",idx);
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for (i = 0; i < SIGNATURES; i++) {
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printf("sign\n");
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xmss_sign(sk, sm, &smlen, mi, MLEN, params);
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idx = ((unsigned long)sm[0] << 24) | ((unsigned long)sm[1] << 16) | ((unsigned long)sm[2] << 8) | sm[3];
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printf("\nidx = %lu\n",idx);
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r = memcmp(mi, sm+signature_length,MLEN);
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printf("%d\n", r);
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/* Test valid signature */
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printf("verify\n");
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r = xmss_sign_open(mo, &mlen, sm, smlen, pk, params);
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printf("%d\n", r);
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if (r != 0) errors++;
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r = memcmp(mi,mo,MLEN);
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printf("%d\n", r);
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printf("%llu\n", MLEN-mlen);
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/* Test with modified message */
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sm[signature_length+10] ^= 1;
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r = xmss_sign_open(mo, &mlen, sm, smlen, pk, params);
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printf("%d\n", r+1);
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if (r == 0) errors++;
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r = memcmp(mi,mo,MLEN);
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printf("%d\n", (r!=0) - 1);
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printf("%llu\n", mlen+1);
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/* Test with modified signature */
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/* Modified index */
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sm[signature_length+10] ^= 1;
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sm[2] ^= 1;
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r = xmss_sign_open(mo, &mlen, sm, smlen, pk, params);
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printf("%d\n", r+1);
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if (r == 0) errors++;
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r = memcmp(mi,mo,MLEN);
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printf("%d\n", (r!=0) - 1);
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printf("%llu\n", mlen+1);
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/* Modified R */
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sm[2] ^= 1;
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sm[5] ^= 1;
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r = xmss_sign_open(mo, &mlen, sm, smlen, pk, params);
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printf("%d\n", r+1);
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if (r == 0) errors++;
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r = memcmp(mi,mo,MLEN);
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printf("%d\n", (r!=0) - 1);
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printf("%llu\n", mlen+1);
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/* Modified OTS sig */
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sm[5] ^= 1;
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sm[240] ^= 1;
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r = xmss_sign_open(mo, &mlen, sm, smlen, pk, params);
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printf("%d\n", r+1);
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if (r == 0) errors++;
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r = memcmp(mi,mo,MLEN);
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printf("%d\n", (r!=0) - 1);
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printf("%llu\n", mlen+1);
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/* Modified AUTH */
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sm[240] ^= 1;
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sm[signature_length - 10] ^= 1;
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r = xmss_sign_open(mo, &mlen, sm, smlen, pk, params);
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printf("%d\n", r+1);
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if (r == 0) errors++;
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r = memcmp(mi,mo,MLEN);
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printf("%d\n", (r!=0) - 1);
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printf("%llu\n", mlen+1);
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}
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printf("#errors = %lu\n", errors);
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fclose(urandom);
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return 0;
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}
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