Mercurial > dropbear
view libtomcrypt/testprof/ecc_test.c @ 1411:798854f62430 fuzz
merge from main
author | Matt Johnston <matt@ucc.asn.au> |
---|---|
date | Wed, 14 Jun 2017 23:31:42 +0800 |
parents | 0cbe8f6dbf9e |
children | f849a5ca2efc |
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#include <tomcrypt_test.h> #ifdef MECC static int sizes[] = { #ifdef ECC112 14, #endif #ifdef ECC128 16, #endif #ifdef ECC160 20, #endif #ifdef ECC192 24, #endif #ifdef ECC224 28, #endif #ifdef ECC256 32, #endif #ifdef ECC384 48, #endif #ifdef ECC521 65 #endif }; #ifdef LTC_ECC_SHAMIR int ecc_test_shamir(void) { void *modulus, *mp, *kA, *kB, *rA, *rB; ecc_point *G, *A, *B, *C1, *C2; int x, y, z; unsigned char buf[ECC_BUF_SIZE]; DO(mp_init_multi(&kA, &kB, &rA, &rB, &modulus, NULL)); LTC_ARGCHK((G = ltc_ecc_new_point()) != NULL); LTC_ARGCHK((A = ltc_ecc_new_point()) != NULL); LTC_ARGCHK((B = ltc_ecc_new_point()) != NULL); LTC_ARGCHK((C1 = ltc_ecc_new_point()) != NULL); LTC_ARGCHK((C2 = ltc_ecc_new_point()) != NULL); for (x = 0; x < (int)(sizeof(sizes)/sizeof(sizes[0])); x++) { /* get the base point */ for (z = 0; ltc_ecc_sets[z].name; z++) { if (sizes[z] < ltc_ecc_sets[z].size) break; } LTC_ARGCHK(ltc_ecc_sets[z].name != NULL); /* load it */ DO(mp_read_radix(G->x, ltc_ecc_sets[z].Gx, 16)); DO(mp_read_radix(G->y, ltc_ecc_sets[z].Gy, 16)); DO(mp_set(G->z, 1)); DO(mp_read_radix(modulus, ltc_ecc_sets[z].prime, 16)); DO(mp_montgomery_setup(modulus, &mp)); /* do 100 random tests */ for (y = 0; y < 100; y++) { /* pick a random r1, r2 */ LTC_ARGCHK(yarrow_read(buf, sizes[x], &yarrow_prng) == sizes[x]); DO(mp_read_unsigned_bin(rA, buf, sizes[x])); LTC_ARGCHK(yarrow_read(buf, sizes[x], &yarrow_prng) == sizes[x]); DO(mp_read_unsigned_bin(rB, buf, sizes[x])); /* compute rA * G = A */ DO(ltc_mp.ecc_ptmul(rA, G, A, modulus, 1)); /* compute rB * G = B */ DO(ltc_mp.ecc_ptmul(rB, G, B, modulus, 1)); /* pick a random kA, kB */ LTC_ARGCHK(yarrow_read(buf, sizes[x], &yarrow_prng) == sizes[x]); DO(mp_read_unsigned_bin(kA, buf, sizes[x])); LTC_ARGCHK(yarrow_read(buf, sizes[x], &yarrow_prng) == sizes[x]); DO(mp_read_unsigned_bin(kB, buf, sizes[x])); /* now, compute kA*A + kB*B = C1 using the older method */ DO(ltc_mp.ecc_ptmul(kA, A, C1, modulus, 0)); DO(ltc_mp.ecc_ptmul(kB, B, C2, modulus, 0)); DO(ltc_mp.ecc_ptadd(C1, C2, C1, modulus, mp)); DO(ltc_mp.ecc_map(C1, modulus, mp)); /* now compute using mul2add */ DO(ltc_mp.ecc_mul2add(A, kA, B, kB, C2, modulus)); /* is they the sames? */ if ((mp_cmp(C1->x, C2->x) != LTC_MP_EQ) || (mp_cmp(C1->y, C2->y) != LTC_MP_EQ) || (mp_cmp(C1->z, C2->z) != LTC_MP_EQ)) { fprintf(stderr, "ECC failed shamir test: size=%d, testno=%d\n", sizes[x], y); return 1; } } mp_montgomery_free(mp); } ltc_ecc_del_point(C2); ltc_ecc_del_point(C1); ltc_ecc_del_point(B); ltc_ecc_del_point(A); ltc_ecc_del_point(G); mp_clear_multi(kA, kB, rA, rB, modulus, NULL); return 0; } #endif int ecc_tests (void) { unsigned char buf[4][4096]; unsigned long x, y, z, s; int stat, stat2; ecc_key usera, userb, pubKey, privKey; DO(ecc_test ()); DO(ecc_test ()); DO(ecc_test ()); DO(ecc_test ()); DO(ecc_test ()); for (s = 0; s < (sizeof(sizes)/sizeof(sizes[0])); s++) { /* make up two keys */ DO(ecc_make_key (&yarrow_prng, find_prng ("yarrow"), sizes[s], &usera)); DO(ecc_make_key (&yarrow_prng, find_prng ("yarrow"), sizes[s], &userb)); /* make the shared secret */ x = sizeof(buf[0]); DO(ecc_shared_secret (&usera, &userb, buf[0], &x)); y = sizeof(buf[1]); DO(ecc_shared_secret (&userb, &usera, buf[1], &y)); if (y != x) { fprintf(stderr, "ecc Shared keys are not same size."); return 1; } if (memcmp (buf[0], buf[1], x)) { fprintf(stderr, "ecc Shared keys not same contents."); return 1; } /* now export userb */ y = sizeof(buf[0]); DO(ecc_export (buf[1], &y, PK_PUBLIC, &userb)); ecc_free (&userb); /* import and make the shared secret again */ DO(ecc_import (buf[1], y, &userb)); z = sizeof(buf[0]); DO(ecc_shared_secret (&usera, &userb, buf[2], &z)); if (z != x) { fprintf(stderr, "failed. Size don't match?"); return 1; } if (memcmp (buf[0], buf[2], x)) { fprintf(stderr, "Failed. Contents didn't match."); return 1; } /* export with ANSI X9.63 */ y = sizeof(buf[1]); DO(ecc_ansi_x963_export(&userb, buf[1], &y)); ecc_free (&userb); /* now import the ANSI key */ DO(ecc_ansi_x963_import(buf[1], y, &userb)); /* shared secret */ z = sizeof(buf[0]); DO(ecc_shared_secret (&usera, &userb, buf[2], &z)); if (z != x) { fprintf(stderr, "failed. Size don't match?"); return 1; } if (memcmp (buf[0], buf[2], x)) { fprintf(stderr, "Failed. Contents didn't match."); return 1; } ecc_free (&usera); ecc_free (&userb); /* test encrypt_key */ DO(ecc_make_key (&yarrow_prng, find_prng ("yarrow"), sizes[s], &usera)); /* export key */ x = sizeof(buf[0]); DO(ecc_export(buf[0], &x, PK_PUBLIC, &usera)); DO(ecc_import(buf[0], x, &pubKey)); x = sizeof(buf[0]); DO(ecc_export(buf[0], &x, PK_PRIVATE, &usera)); DO(ecc_import(buf[0], x, &privKey)); for (x = 0; x < 32; x++) { buf[0][x] = x; } y = sizeof (buf[1]); DO(ecc_encrypt_key (buf[0], 32, buf[1], &y, &yarrow_prng, find_prng ("yarrow"), find_hash ("sha256"), &pubKey)); zeromem (buf[0], sizeof (buf[0])); x = sizeof (buf[0]); DO(ecc_decrypt_key (buf[1], y, buf[0], &x, &privKey)); if (x != 32) { fprintf(stderr, "Failed (length)"); return 1; } for (x = 0; x < 32; x++) { if (buf[0][x] != x) { fprintf(stderr, "Failed (contents)"); return 1; } } /* test sign_hash */ for (x = 0; x < 16; x++) { buf[0][x] = x; } x = sizeof (buf[1]); DO(ecc_sign_hash (buf[0], 16, buf[1], &x, &yarrow_prng, find_prng ("yarrow"), &privKey)); DO(ecc_verify_hash (buf[1], x, buf[0], 16, &stat, &pubKey)); buf[0][0] ^= 1; DO(ecc_verify_hash (buf[1], x, buf[0], 16, &stat2, &privKey)); if (!(stat == 1 && stat2 == 0)) { fprintf(stderr, "ecc_verify_hash failed %d, %d, ", stat, stat2); return 1; } ecc_free (&usera); ecc_free (&pubKey); ecc_free (&privKey); } #ifdef LTC_ECC_SHAMIR return ecc_test_shamir(); #else return 0; #endif } #else int ecc_tests(void) { fprintf(stderr, "NOP"); return 0; } #endif /* $Source: /cvs/libtom/libtomcrypt/testprof/ecc_test.c,v $ */ /* $Revision: 1.21 $ */ /* $Date: 2006/12/04 03:21:03 $ */