/* * auth.c * * some bookkeeping functions for authentication functions * * David A. McGrew * Cisco Systems, Inc. */ /* * * Copyright (c) 2001-2017, Cisco Systems, Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials provided * with the distribution. * * Neither the name of the Cisco Systems, Inc. nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. * */ #ifdef HAVE_CONFIG_H #include <config.h> #endif #include "auth.h" #include "err.h" /* for srtp_debug */ #include "datatypes.h" /* for octet_string */ /* the debug module for authentiation */ srtp_debug_module_t srtp_mod_auth = …; int srtp_auth_get_key_length(const srtp_auth_t *a) { … } int srtp_auth_get_tag_length(const srtp_auth_t *a) { … } int srtp_auth_get_prefix_length(const srtp_auth_t *a) { … } /* * srtp_auth_type_test() tests an auth function of type ct against * test cases provided in a list test_data of values of key, data, and tag * that is known to be good */ /* should be big enough for most occasions */ #define SELF_TEST_TAG_BUF_OCTETS … srtp_err_status_t srtp_auth_type_test(const srtp_auth_type_t *at, const srtp_auth_test_case_t *test_data) { … } /* * srtp_auth_type_self_test(at) performs srtp_auth_type_test on at's internal * list of test data. */ srtp_err_status_t srtp_auth_type_self_test(const srtp_auth_type_t *at) { … }