libsecurity_cdsa_client/lib/genkey.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 // genkey - client interface to CSSM sign/verify contexts
  21 //
  22 #include <security_cdsa_client/genkey.h>
  23
  24 using namespace CssmClient;
  25
  26
  27 GenerateKey::GenerateKey(const CSP &csp, CSSM_ALGORITHMS alg, uint32 size)
  28 : Context(csp, alg), mKeySize(size), mSeed(NULL), mSalt(NULL), mParams(NULL)
  29 {
  30 }
  31
  32 void
  33 GenerateKey::database(const Db &inDb)
  34 {
  35         mDb = inDb;
  36         if (mDb && isActive())
  37                 set(CSSM_ATTRIBUTE_DL_DB_HANDLE, mDb->handle());
  38 }
  39
  40 void GenerateKey::activate()
  41 {
  42         if (!mActive)
  43         {
  44                 check(CSSM_CSP_CreateKeyGenContext(attachment()->handle(), mAlgorithm,
  45                         mKeySize, mSeed, mSalt, NULL, NULL, mParams, &mHandle));
  46                 // Must be done before calling set() since is does nothing unless we are active.
  47                 // Also we are technically active even if set() throws since we already created a context.
  48                 mActive = true;
  49                 if (mDb)
  50                         set(CSSM_ATTRIBUTE_DL_DB_HANDLE, mDb->handle());
  51         }
  52 }
  53
  54 Key GenerateKey::operator () (const KeySpec &spec)
  55 {
  56         Key key;
  57
  58         check(CSSM_GenerateKey(handle(), spec.usage, spec.attributes, spec.label,
  59                    &compositeRcc(), key.makeNewKey(attachment())));
  60
  61         key->activate();
  62
  63         return key;
  64 }
  65
  66 void GenerateKey::operator () (CssmKey &key, const KeySpec &spec)
  67 {
  68         check(CSSM_GenerateKey(handle(), spec.usage, spec.attributes, spec.label, &compositeRcc(), &key));
  69
  70 }
  71
  72 void GenerateKey::operator () (Key &publicKey, const KeySpec &pubSpec,
  73                 Key &privateKey, const KeySpec &privSpec)
  74 {
  75         check(CSSM_GenerateKeyPair(handle(),
  76                 pubSpec.usage, pubSpec.attributes,
  77                 pubSpec.label, publicKey.makeNewKey(attachment()),
  78                 privSpec.usage, privSpec.attributes,
  79                 privSpec.label, &compositeRcc(), privateKey.makeNewKey(attachment())));
  80
  81         publicKey->activate();
  82         privateKey->activate();
  83
  84 }
  85
  86 void GenerateKey::operator () (CssmKey &publicKey, const KeySpec &pubSpec,
  87                 CssmKey &privateKey, const KeySpec &privSpec)
  88 {
  89         check(CSSM_GenerateKeyPair(handle(),
  90                 pubSpec.usage, pubSpec.attributes, pubSpec.label, &publicKey,
  91                 privSpec.usage, privSpec.attributes, privSpec.label, &compositeRcc(), &privateKey));
  92 }
  93