/* * Unix SMB/CIFS implementation. * * Copyright (C) 2019 Guenther Deschner * * This program 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. * * This program 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 this program. If not, see . */ #include #include #include #include #include #include "includes.h" #include "lib/crypto/gnutls_helpers.h" #include #include #ifdef HAVE_GNUTLS_AES_CFB8 static void torture_gnutls_aes_128_cfb_flags(void **state, const DATA_BLOB session_key, const DATA_BLOB seq_num_initial, const DATA_BLOB confounder_initial, const DATA_BLOB confounder_expected, const DATA_BLOB clear_initial, const DATA_BLOB crypt_expected) { uint8_t confounder[8]; DATA_BLOB io; gnutls_cipher_hd_t cipher_hnd = NULL; uint8_t sess_kf0[16] = {0}; gnutls_datum_t key = { .data = sess_kf0, .size = sizeof(sess_kf0), }; uint32_t iv_size = gnutls_cipher_get_iv_size(GNUTLS_CIPHER_AES_128_CFB8); uint8_t _iv[iv_size]; gnutls_datum_t iv = { .data = _iv, .size = iv_size, }; uint32_t i; int rc; assert_int_equal(session_key.length, 16); assert_int_equal(seq_num_initial.length, 8); assert_int_equal(confounder_initial.length, 8); assert_int_equal(confounder_expected.length, 8); assert_int_equal(clear_initial.length, crypt_expected.length); DEBUG(0,("checking buffer size: %d\n", (int)clear_initial.length)); io = data_blob_dup_talloc(NULL, clear_initial); assert_non_null(io.data); assert_int_equal(io.length, clear_initial.length); memcpy(confounder, confounder_initial.data, 8); DEBUG(0,("confounder before crypt:\n")); dump_data(0, confounder, 8); dump_data(0, seq_num_initial.data, 8); dump_data(0, io.data, io.length); for (i = 0; i < key.size; i++) { key.data[i] = session_key.data[i] ^ 0xf0; } ZERO_ARRAY(_iv); memcpy(iv.data + 0, seq_num_initial.data, 8); memcpy(iv.data + 8, seq_num_initial.data, 8); rc = gnutls_cipher_init(&cipher_hnd, GNUTLS_CIPHER_AES_128_CFB8, &key, &iv); assert_int_equal(rc, 0); rc = gnutls_cipher_encrypt(cipher_hnd, confounder, 8); assert_int_equal(rc, 0); rc = gnutls_cipher_encrypt(cipher_hnd, io.data, io.length); assert_int_equal(rc, 0); dump_data(0, io.data, io.length); DEBUG(0,("confounder after crypt:\n")); dump_data(0, confounder, 8); dump_data(0, seq_num_initial.data, 8); assert_memory_equal(io.data, crypt_expected.data, crypt_expected.length); assert_memory_equal(confounder, confounder_expected.data, confounder_expected.length); rc = gnutls_cipher_decrypt(cipher_hnd, confounder, 8); assert_int_equal(rc, 0); rc = gnutls_cipher_decrypt(cipher_hnd, io.data, io.length); assert_int_equal(rc, 0); gnutls_cipher_deinit(cipher_hnd); dump_data(0, io.data, io.length); DEBUG(0,("confounder after decrypt:\n")); dump_data(0, confounder, 8); dump_data(0, seq_num_initial.data, 8); assert_memory_equal(io.data, clear_initial.data, clear_initial.length); assert_memory_equal(confounder, confounder_initial.data, confounder_initial.length); } #endif static void torture_gnutls_aes_128_cfb(void **state) { #ifdef HAVE_GNUTLS_AES_CFB8 const uint8_t _session_key[16] = { 0x8E, 0xE8, 0x27, 0x85, 0x83, 0x41, 0x3C, 0x8D, 0xC9, 0x54, 0x70, 0x75, 0x8E, 0xC9, 0x69, 0x91 }; const DATA_BLOB session_key = data_blob_const(_session_key, 16); const uint8_t _seq_num_initial[8] = { 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00 }; const DATA_BLOB seq_num_initial = data_blob_const(_seq_num_initial, 8); const uint8_t _confounder_initial[8] = { 0x6E, 0x09, 0x25, 0x94, 0x01, 0xA0, 0x09, 0x31 }; const DATA_BLOB confounder_initial = data_blob_const(_confounder_initial, 8); const uint8_t _confounder_expected[8] = { 0xCA, 0xFB, 0xAC, 0xFB, 0xA8, 0x26, 0x75, 0x2A }; const DATA_BLOB confounder_expected = data_blob_const(_confounder_expected, 8); const uint8_t _clear_initial[] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00, 0x00, 0x00, 0x04, 0x00, 0x02, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8A, 0xE3, 0x13, 0x71, 0x02, 0xF4, 0x36, 0x71, 0x01, 0x00, 0x04, 0x00, 0x01, 0x00, 0x00, 0x00, 0x02, 0x40, 0x28, 0x00, 0x78, 0x57, 0x34, 0x12, 0x34, 0x12, 0xCD, 0xAB, 0xEF, 0x00, 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0x00, 0x00, 0x00, 0x00, 0x04, 0x5D, 0x88, 0x8A, 0xEB, 0x1C, 0xC9, 0x11, 0x9F, 0xE8, 0x08, 0x00, 0x2B, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; const DATA_BLOB clear_initial = data_blob_const(_clear_initial, sizeof(_clear_initial)); const uint8_t crypt_buffer[] = { 0xE2, 0xE5, 0xE3, 0x26, 0x45, 0xFB, 0xFC, 0xF3, 0x9C, 0x14, 0xDD, 0xE1, 0x39, 0x23, 0xE0, 0x55, 0xED, 0x8F, 0xF4, 0x92, 0xA1, 0xBD, 0xDC, 0x40, 0x58, 0x6F, 0xD2, 0x5B, 0xF9, 0xC9, 0xA3, 0x87, 0x46, 0x4B, 0x7F, 0xB2, 0x03, 0xD2, 0x35, 0x22, 0x3E, 0x70, 0x9F, 0x1E, 0x3F, 0x1F, 0xDB, 0x7D, 0x79, 0x88, 0x5A, 0x3D, 0xD3, 0x40, 0x1E, 0x69, 0xD7, 0xE2, 0x1D, 0x5A, 0xE9, 0x3B, 0xE1, 0xE2, 0x98, 0xFD, 0xCB, 0x3A, 0xF7, 0xB5, 0x1C, 0xF8, 0xCA, 0x02, 0x00, 0x99, 0x9F, 0x0C, 0x01, 0xE6, 0xD2, 0x00, 0xAF, 0xE0, 0x51, 0x88, 0x62, 0x50, 0xB7, 0xE8, 0x6D, 0x63, 0x4B, 0x97, 0x05, 0xC1, 0xD4, 0x83, 0x96, 0x29, 0x80, 0xAE, 0xD8, 0xA2, 0xED, 0xC9, 0x5D, 0x0D, 0x29, 0xFF, 0x2C, 0x23, 0x02, 0xFA, 0x3B, 0xEE, 0xE8, 0xBA, 0x06, 0x01, 0x95, 0xDF, 0x80, 0x76, 0x0B, 0x17, 0x0E, 0xD8 }; const DATA_BLOB crypt_expected = data_blob_const(crypt_buffer, sizeof(crypt_buffer)); int buffer_sizes[] = { 0, 1, 3, 7, 8, 9, 15, 16, 17 }; int i; torture_gnutls_aes_128_cfb_flags(state, session_key, seq_num_initial, confounder_initial, confounder_expected, clear_initial, crypt_expected); /* repeat the test for varying buffer sizes */ for (i = 0; i < ARRAY_SIZE(buffer_sizes); i++) { DATA_BLOB clear_initial_trunc = data_blob_const(clear_initial.data, buffer_sizes[i]); DATA_BLOB crypt_expected_trunc = data_blob_const(crypt_expected.data, buffer_sizes[i]); torture_gnutls_aes_128_cfb_flags(state, session_key, seq_num_initial, confounder_initial, confounder_expected, clear_initial_trunc, crypt_expected_trunc); } #endif } int main(int argc, char *argv[]) { int rc; const struct CMUnitTest tests[] = { cmocka_unit_test(torture_gnutls_aes_128_cfb), }; if (argc == 2) { cmocka_set_test_filter(argv[1]); } cmocka_set_message_output(CM_OUTPUT_SUBUNIT); rc = cmocka_run_group_tests(tests, NULL, NULL); return rc; }