146 lines
4.0 KiB
C
146 lines
4.0 KiB
C
#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include "../xmss_fast.h"
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#include "../params.h"
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#include "../randombytes.h"
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#define MLEN 3491
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#define SIGNATURES 256
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unsigned long long t1, t2;
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unsigned long long cpucycles(void)
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{
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unsigned long long result;
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asm volatile(".byte 15;.byte 49;shlq $32,%%rdx;orq %%rdx,%%rax" : "=a" (result) :: "%rdx");
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return result;
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}
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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 k = XMSS_BDS_K;
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unsigned long errors = 0;
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unsigned char sk[4*XMSS_N+4];
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unsigned char pk[2*XMSS_N];
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// TODO should we hide this into xmss_fast.c and just allocate a large enough chunk of memory here?
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unsigned char stack[(XMSS_TREEHEIGHT+1)*XMSS_N];
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unsigned int stackoffset = 0;
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unsigned char stacklevels[XMSS_TREEHEIGHT+1];
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unsigned char auth[(XMSS_TREEHEIGHT)*XMSS_N];
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unsigned char keep[(XMSS_TREEHEIGHT >> 1)*XMSS_N];
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treehash_inst treehash[XMSS_TREEHEIGHT-k];
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unsigned char th_nodes[(XMSS_TREEHEIGHT-k)*XMSS_N];
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unsigned char retain[((1 << k) - k - 1)*XMSS_N];
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bds_state s;
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bds_state *state = &s;
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for (i = 0; i < XMSS_TREEHEIGHT-k; i++)
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treehash[i].node = &th_nodes[XMSS_N*i];
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xmss_set_bds_state(state, stack, stackoffset, stacklevels, auth, keep, treehash, retain, 0);
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unsigned long long signature_length = 4+XMSS_N+XMSS_WOTS_KEYSIZE+XMSS_TREEHEIGHT*XMSS_N;
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unsigned char mi[MLEN];
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unsigned char mo[MLEN+signature_length];
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unsigned char sm[MLEN+signature_length];
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unsigned long long smlen;
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unsigned long long mlen;
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randombytes(mi, MLEN);
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printf("keypair\n");
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t1 = cpucycles();
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xmss_keypair(pk, sk, state);
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t2 = cpucycles();
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printf("cycles = %llu\n", (t2-t1));
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double sec = (t2-t1)/3500000;
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printf("ms = %f\n", sec);
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// check pub_seed in SK
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for (i = 0; i < XMSS_N; i++) {
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if (pk[XMSS_N+i] != sk[4+2*XMSS_N+i]) printf("pk.pub_seed != sk.pub_seed %llu",i);
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if (pk[i] != sk[4+3*XMSS_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, state, sm, &smlen, mi, MLEN);
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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);
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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);
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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);
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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);
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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);
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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);
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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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printf("finished loop\n");
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return 0;
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}
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