libsecurity_apple_csp/lib/DH_csp.cpp

   1 /*
   2  * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved.
   3  *
   4  * The contents of this file constitute Original Code as defined in and are
   5  * subject to the Apple Public Source License Version 1.2 (the 'License').
   6  * You may not use this file except in compliance with the License. Please obtain
   7  * a copy of the License at http://www.apple.com/publicsource and read it before
   8  * using this file.
   9  *
  10  * This Original Code and all software distributed under the License are
  11  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
  12  * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
  13  * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
  14  * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
  15  * specific language governing rights and limitations under the License.
  16  */
  17
  18
  19 /*
  20  * DH_csp.cpp - Diffie-Hellman Algorithm factory
  21  */
  22
  23 #include "DH_csp.h"
  24 #include "DH_keys.h"
  25 #include <Security/cssmapple.h>
  26
  27 Allocator *DH_Factory::normAllocator;
  28 Allocator *DH_Factory::privAllocator;
  29
  30 DH_Factory::DH_Factory(Allocator *normAlloc, Allocator *privAlloc)
  31 {
  32         setNormAllocator(normAlloc);
  33         setPrivAllocator(privAlloc);
  34
  35         /* NOTE WELL we assume that the RSA_DSA factory has already been instantitated,
  36          * doing the basic init of openssl */
  37
  38         ERR_load_DH_strings();
  39 }
  40
  41 DH_Factory::~DH_Factory()
  42 {
  43 }
  44
  45 bool DH_Factory::setup(
  46         AppleCSPSession &session,
  47         CSPFullPluginSession::CSPContext * &cspCtx,
  48         const Context &context)
  49 {
  50         switch(context.type()) {
  51                 case CSSM_ALGCLASS_KEYGEN:
  52                         switch(context.algorithm()) {
  53                                 case CSSM_ALGID_DH:
  54                                         if(cspCtx == NULL) {
  55                                                 cspCtx = new DHKeyPairGenContext(session, context);
  56                                         }
  57                                         return true;
  58                                 default:
  59                                         break;
  60                         }
  61                         break;
  62
  63                 default:
  64                         break;
  65         }
  66         /* not implemented here */
  67         return false;
  68 }
  69
  70
  71