diff options
Diffstat (limited to 'crypto/hash/null_auth.c')
| -rw-r--r-- | crypto/hash/null_auth.c | 159 |
1 files changed, 0 insertions, 159 deletions
diff --git a/crypto/hash/null_auth.c b/crypto/hash/null_auth.c deleted file mode 100644 index d73f3f8..0000000 --- a/crypto/hash/null_auth.c +++ /dev/null @@ -1,159 +0,0 @@ -/* - * null_auth.c - * - * implements the do-nothing auth algorithm - * - * David A. McGrew - * Cisco Systems, Inc. - * - */ - -/* - * - * Copyright (c) 2001-2006, 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. - * - */ - - -#include "null_auth.h" -#include "alloc.h" - -/* null_auth uses the auth debug module */ - -extern debug_module_t mod_auth; - -err_status_t -null_auth_alloc(auth_t **a, int key_len, int out_len) { - extern auth_type_t null_auth; - uint8_t *pointer; - - debug_print(mod_auth, "allocating auth func with key length %d", key_len); - debug_print(mod_auth, " tag length %d", out_len); - - /* allocate memory for auth and null_auth_ctx_t structures */ - pointer = (uint8_t*)crypto_alloc(sizeof(null_auth_ctx_t) + sizeof(auth_t)); - if (pointer == NULL) - return err_status_alloc_fail; - - /* set pointers */ - *a = (auth_t *)pointer; - (*a)->type = &null_auth; - (*a)->state = pointer + sizeof (auth_t); - (*a)->out_len = out_len; - (*a)->prefix_len = out_len; - (*a)->key_len = key_len; - - /* increment global count of all null_auth uses */ - null_auth.ref_count++; - - return err_status_ok; -} - -err_status_t -null_auth_dealloc(auth_t *a) { - extern auth_type_t null_auth; - - /* zeroize entire state*/ - octet_string_set_to_zero((uint8_t *)a, - sizeof(null_auth_ctx_t) + sizeof(auth_t)); - - /* free memory */ - crypto_free(a); - - /* decrement global count of all null_auth uses */ - null_auth.ref_count--; - - return err_status_ok; -} - -err_status_t -null_auth_init(null_auth_ctx_t *state, const uint8_t *key, int key_len) { - - /* accept any length of key, and do nothing */ - - return err_status_ok; -} - -err_status_t -null_auth_compute(null_auth_ctx_t *state, uint8_t *message, - int msg_octets, int tag_len, uint8_t *result) { - - return err_status_ok; -} - -err_status_t -null_auth_update(null_auth_ctx_t *state, uint8_t *message, - int msg_octets) { - - return err_status_ok; -} - -err_status_t -null_auth_start(null_auth_ctx_t *state) { - return err_status_ok; -} - -/* - * auth_type_t - defines description, test case, and null_auth - * metaobject - */ - -/* begin test case 0 */ - -auth_test_case_t -null_auth_test_case_0 = { - 0, /* octets in key */ - NULL, /* key */ - 0, /* octets in data */ - NULL, /* data */ - 0, /* octets in tag */ - NULL, /* tag */ - NULL /* pointer to next testcase */ -}; - -/* end test case 0 */ - -char null_auth_description[] = "null authentication function"; - -auth_type_t -null_auth = { - (auth_alloc_func) null_auth_alloc, - (auth_dealloc_func) null_auth_dealloc, - (auth_init_func) null_auth_init, - (auth_compute_func) null_auth_compute, - (auth_update_func) null_auth_update, - (auth_start_func) null_auth_start, - (char *) null_auth_description, - (int) 0, /* instance count */ - (auth_test_case_t *) &null_auth_test_case_0 -}; |