/* * Copyright (C) 2019 Red Hat, Inc. * * Author: Simo Sorce * * This file is part of GnuTLS. * * GnuTLS is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * GnuTLS is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with GnuTLS; if not, write to the Free Software Foundation, * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */ /* This program tests functionality of DH exchanges */ #ifdef HAVE_CONFIG_H #include #endif #include #include #include #include #include "utils.h" #ifdef ENABLE_FIPS140 int _gnutls_ecdh_compute_key(gnutls_ecc_curve_t curve, const gnutls_datum_t *x, const gnutls_datum_t *y, const gnutls_datum_t *k, const gnutls_datum_t *peer_x, const gnutls_datum_t *peer_y, gnutls_datum_t *Z); int _gnutls_ecdh_generate_key(gnutls_ecc_curve_t curve, gnutls_datum_t *x, gnutls_datum_t *y, gnutls_datum_t *k); static void genkey(gnutls_ecc_curve_t curve, gnutls_datum_t *x, gnutls_datum_t *y, gnutls_datum_t *key) { int ret; ret = _gnutls_ecdh_generate_key(curve, x, y, key); if (ret != 0) fail("error\n"); } static void compute_key(gnutls_ecc_curve_t curve, gnutls_datum_t *x, gnutls_datum_t *y, gnutls_datum_t *key, const gnutls_datum_t *peer_x, const gnutls_datum_t *peer_y, int expect_error, gnutls_datum_t *result, bool expect_success) { gnutls_datum_t Z = { 0 }; bool success; int ret; ret = _gnutls_ecdh_compute_key(curve, x, y, key, peer_x, peer_y, &Z); if (expect_error != ret) fail("error (%d)\n", ret); if (result) { success = (Z.size != result->size && memcmp(Z.data, result->data, Z.size)); if (success != expect_success) fail("error\n"); } gnutls_free(Z.data); } struct dh_test_data { gnutls_ecc_curve_t curve; const gnutls_datum_t x; const gnutls_datum_t y; const gnutls_datum_t key; const gnutls_datum_t peer_x; const gnutls_datum_t peer_y; int expected_error; }; void doit(void) { struct dh_test_data test_data[] = { { /* x == 0, y == 0 */ GNUTLS_ECC_CURVE_SECP256R1, { 0 }, { 0 }, { 0 }, { (void *)"\x00", 1 }, { (void *)"\x00", 1 }, /* Should be GNUTLS_E_PK_INVALID_PUBKEY but mpi scan * balks on values of 0 */ GNUTLS_E_MPI_SCAN_FAILED, }, { /* x > p -1 */ GNUTLS_ECC_CURVE_SECP256R1, { 0 }, { 0 }, { 0 }, { (void *)"\xff\xff\xff\xff\x00\x00\x00\x01" "\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\xff\xff\xff\xff" "\xff\xff\xff\xff\xff\xff\xff\xff", 1 }, { (void *)"\x02", 1 }, GNUTLS_E_PK_INVALID_PUBKEY, }, { /* y > p -1 */ GNUTLS_ECC_CURVE_SECP256R1, { 0 }, { 0 }, { 0 }, { (void *)"\x02", 1 }, { (void *)"\xff\xff\xff\xff\x00\x00\x00\x01" "\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\xff\xff\xff\xff" "\xff\xff\xff\xff\xff\xff\xff\xff", 1 }, GNUTLS_E_PK_INVALID_PUBKEY, }, { /* From CAVS tests */ GNUTLS_ECC_CURVE_SECP521R1, { (void *)"\xac\xbe\x4a\xd4\xf6\x73\x44\x0a" "\xfc\x31\xf0\xb0\x3d\x28\xd4\xd5" "\x14\xbe\x7b\xdd\x7a\x31\xb0\x32" "\xec\x27\x27\x17\xa5\x7d\xc2\x6c" "\xc4\xc9\x56\x29\xdb\x2d\x8c\x05" "\x86\x2b\xe6\x15\xc6\x06\x28\xa3" "\x24\xf2\x01\x7f\x98\xbd\xf9\x11" "\xcc\xf8\x83\x5e\x43\x9e\xb2\xc1" "\x88", 65 }, { (void *)"\xd6\x9b\x29\xa2\x37\x82\x36\x92" "\xe8\xdb\x90\xa3\x25\x68\x67\x6c" "\x92\xff\x3d\x23\x85\xe2\xfd\x13" "\x16\x12\x72\xb3\x4b\x55\x88\x72" "\xb0\x35\xab\xb5\x10\x89\x52\x5f" "\x42\x9f\x53\x02\x60\x80\xc3\xd5" "\x36\x6e\xe9\xdd\x28\xae\xd2\x38" "\xab\xbe\x68\x6a\x54\x3e\x19\xf2" "\x77", 65 }, { (void *)"\xd7\xdd\x17\x7c\xb9\x7f\x19\x09" "\xbe\x56\x79\xba\x38\x7b\xee\x64" "\xf7\xb4\x08\x4a\x4f\xaa\x6c\x31" "\x8b\x82\xe9\xf2\xf7\x50\xc5\xc1" "\x82\x26\x20\xd4\x88\x25\x0b\xf6" "\xb4\x14\xea\x9b\x2c\x07\x93\x50" "\xb9\xad\x78\x0a\x5e\xc6\xa6\xf8" "\xb2\x9f\xa1\xc4\x76\xce\x1d\xa9" "\xf5", 65 }, { (void *)"\x01\x41\xbe\x1a\xfa\x21\x99\xc9" "\xb2\x2d\xaa\x0a\xff\x90\xb2\x67" "\x18\xa2\x67\x04\x7e\xae\x28\x40" "\xe8\xbc\xa0\xbd\x0c\x75\x41\x51" "\xf1\xa0\x4d\xcf\x09\xa5\x4f\x1e" "\x13\x5e\xa0\xdd\x13\xed\x86\x74" "\x05\xc0\xcb\x6d\xac\x14\x6a\x24" "\xb8\xdc\xf3\x78\xed\xed\x5d\xcd" "\x57\x5b", 66 }, { (void *)"\x19\x52\xbd\x5d\xe6\x26\x40\xc3" "\xfc\x8c\xc1\x55\xe2\x9c\x71\x14" "\x5e\xdc\x62\x1c\x3a\x94\x4e\x55" "\x56\x75\xf7\x45\x6e\xa4\x9e\x94" "\xb8\xfe\xda\xd4\xac\x7d\x76\xc5" "\xb4\x65\xed\xb4\x49\x34\x71\x14" "\xdb\x8f\x10\x90\xa3\x05\x02\xdc" "\x86\x92\x6c\xbe\x9b\x57\x32\xe3" "\x2c", 65 }, 0, }, { 0 } }; for (int i = 0; test_data[i].curve != 0; i++) { gnutls_datum_t x, y, key; if (test_data[i].key.data == NULL) { genkey(test_data[i].curve, &x, &y, &key); } else { x = test_data[i].x; y = test_data[i].y; key = test_data[i].key; } compute_key(test_data[i].curve, &x, &y, &key, &test_data[i].peer_x, &test_data[i].peer_y, test_data[i].expected_error, NULL, 0); if (test_data[i].key.data == NULL) { gnutls_free(x.data); gnutls_free(y.data); gnutls_free(key.data); } } success("all ok\n"); } #else void doit(void) { return; } #endif