libsecurity_apple_csp/lib/SHA1_MD5_Object.cpp

   1 /*
   2  * Copyright (c) 2000-2004 Apple Computer, Inc. All Rights Reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24
  25 /*
  26  * DigestObject.cpp - generic C++ implementations of SHA1 and MD5.
  27  *
  28  * Created 2/19/2001 by dmitch.
  29  */
  30
  31 #include "SHA1_MD5_Object.h"
  32 #include <stdexcept>
  33 #include <string.h>
  34
  35 /***
  36  *** MD5
  37  ***/
  38 void MD5Object::digestInit()
  39 {
  40         mIsDone = false;
  41         CC_MD5_Init(&mCtx);
  42 }
  43
  44 void MD5Object::digestUpdate(
  45         const void      *data,
  46         size_t          len)
  47 {
  48         if(mIsDone) {
  49                 throw std::runtime_error("MD5 digestUpdate after final");
  50         }
  51         CC_MD5_Update(&mCtx, data, (CC_LONG)len);
  52 }
  53
  54 void MD5Object::digestFinal(
  55         void            *digest)
  56 {
  57         if(mIsDone) {
  58                 throw std::runtime_error("MD5 digestFinal after final");
  59         }
  60         CC_MD5_Final((unsigned char *)digest, &mCtx);
  61         mIsDone = true;
  62 }
  63
  64 /* use default memberwise init */
  65 DigestObject *MD5Object::digestClone() const
  66 {
  67         return new MD5Object(*this);
  68 }
  69
  70 size_t MD5Object::digestSizeInBytes() const
  71 {
  72         return CC_MD5_DIGEST_LENGTH;
  73 }
  74
  75 /***
  76  *** SHA1
  77  ***/
  78 void SHA1Object::digestInit()
  79 {
  80         mIsDone = false;
  81         CC_SHA1_Init(&mCtx);
  82 }
  83
  84 void SHA1Object::digestUpdate(
  85         const void      *data,
  86         size_t          len)
  87 {
  88         CC_SHA1_Update(&mCtx, (const unsigned char *)data, (CC_LONG)len);
  89 }
  90
  91 void SHA1Object::digestFinal(
  92         void            *digest)
  93 {
  94         CC_SHA1_Final((unsigned char *)digest, &mCtx);
  95         mIsDone = true;
  96 }
  97
  98 /* use default memberwise init */
  99 DigestObject *SHA1Object::digestClone() const
 100 {
 101         return new SHA1Object(*this);
 102 }
 103
 104 size_t SHA1Object::digestSizeInBytes() const
 105 {
 106         return CC_SHA1_DIGEST_LENGTH;
 107 }
 108