osfmk/corecrypto/ccdigest_init.c

   1 /*
   2  *  ccdigest_init.c
   3  *  corecrypto
   4  *
   5  *  Created on 11/30/2010
   6  *
   7  *  Copyright (c) 2010,2011,2015 Apple Inc. All rights reserved.
   8  *
   9  *
  10  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  11  *
  12  * This file contains Original Code and/or Modifications of Original Code
  13  * as defined in and that are subject to the Apple Public Source License
  14  * Version 2.0 (the 'License'). You may not use this file except in
  15  * compliance with the License. The rights granted to you under the License
  16  * may not be used to create, or enable the creation or redistribution of,
  17  * unlawful or unlicensed copies of an Apple operating system, or to
  18  * circumvent, violate, or enable the circumvention or violation of, any
  19  * terms of an Apple operating system software license agreement.
  20  *
  21  * Please obtain a copy of the License at
  22  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  23  *
  24  * The Original Code and all software distributed under the License are
  25  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  26  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  27  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  28  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  29  * Please see the License for the specific language governing rights and
  30  * limitations under the License.
  31  *
  32  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  33  */
  34
  35 #include <corecrypto/ccdigest_priv.h>
  36 #include <corecrypto/cc_priv.h>
  37 #include <corecrypto/ccmd4.h>
  38
  39 #if 0
  40 #if CC_LOGGING_AVAILABLE
  41 #if CC_FEATURE_FLAGS_AVAILABLE
  42
  43 #include "cclog_internal.h"
  44 #include <os/feature_private.h>
  45
  46 static void
  47 log_trace(const struct ccdigest_info *di)
  48 {
  49         if (!CC_FEATURE_ENABLED(ccdigest_logging)) {
  50                 return;
  51         }
  52
  53         if (ccdigest_oid_equal(di, CC_DIGEST_OID_MD2)) {
  54                 cclog_error_backtrace(CCLOG_CATEGORY_DEFAULT, "trace: md2");
  55         } else if (ccdigest_oid_equal(di, CC_DIGEST_OID_MD4)) {
  56                 cclog_error_backtrace(CCLOG_CATEGORY_DEFAULT, "trace: md4");
  57         } else if (ccdigest_oid_equal(di, CC_DIGEST_OID_MD5)) {
  58                 cclog_error_backtrace(CCLOG_CATEGORY_ALGORITHM_MD5, "trace: md5");
  59         } else if (ccdigest_oid_equal(di, CC_DIGEST_OID_SHA1)) {
  60                 cclog_error_backtrace(CCLOG_CATEGORY_ALGORITHM_SHA1, "trace: sha1");
  61         } else if (ccdigest_oid_equal(di, CC_DIGEST_OID_RMD160)) {
  62                 cclog_error_backtrace(CCLOG_CATEGORY_DEFAULT, "trace: rmd160");
  63         }
  64 }
  65
  66 #endif // CC_FEATURE_FLAGS_AVAILABLE
  67 #endif // CC_LOGGING_AVAILABLE
  68 #endif
  69
  70 void
  71 ccdigest_init(const struct ccdigest_info *di, ccdigest_ctx_t ctx)
  72 {
  73 #if 0
  74 #if CC_LOGGING_AVAILABLE
  75 #if CC_FEATURE_FLAGS_AVAILABLE
  76         log_trace(di);
  77 #endif // CC_FEATURE_FLAGS_AVAILABLE
  78 #endif // CC_LOGGING_AVAILABLE
  79 #endif
  80
  81         ccdigest_copy_state(di, ccdigest_state_ccn(di, ctx), di->initial_state);
  82         ccdigest_nbits(di, ctx) = 0;
  83         ccdigest_num(di, ctx) = 0;
  84 }