AppleCSP/RSA_DSA/RSA_DSA_keys.h

   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  * RSA_DSA_keys.h - key pair support for RSA/DSA
  21  */
  22
  23 #ifndef _RSA_DSA_KEYS_H_
  24 #define _RSA_DSA_KEYS_H_
  25
  26 #include <AppleCSP/AppleCSPContext.h>
  27 #include <AppleCSP/AppleCSPSession.h>
  28 #include <RSA_DSA/RSA_DSA_csp.h>
  29 #include <openssl/rsa.h>
  30 #include <openssl/dsa.h>
  31 #include <Security/context.h>
  32 #include <opensslUtils/openRsaSnacc.h>
  33 #include <Security/appleoids.h>
  34
  35 #define RSA_PUB_KEY_FORMAT              CSSM_KEYBLOB_RAW_FORMAT_PKCS1
  36 #define RSA_PRIV_KEY_FORMAT             CSSM_KEYBLOB_RAW_FORMAT_PKCS8
  37
  38 #define DSA_PUB_KEY_FORMAT              CSSM_KEYBLOB_RAW_FORMAT_FIPS186
  39 #define DSA_PRIV_KEY_FORMAT             CSSM_KEYBLOB_RAW_FORMAT_FIPS186
  40
  41 #define DSA_MIN_KEY_SIZE                512
  42 #define DSA_MAX_KEY_SIZE                1024
  43 #define DSA_KEY_BITS_MASK               (64 - 1)        /* these bits must be zero */
  44                                                                                         /* i.e., aligned to 64 bits */
  45 /*
  46  * RSA version of a BinaryKey.
  47  */
  48 class RSABinaryKey : public BinaryKey {
  49 public:
  50         RSABinaryKey(RSA *rsaKey = NULL);
  51         ~RSABinaryKey();
  52         void generateKeyBlob(
  53                 CssmAllocator           &allocator,
  54                 CssmData                        &blob,
  55                 CSSM_KEYBLOB_FORMAT     &format);
  56
  57         RSA                                             *mRsaKey;
  58 };
  59
  60 class RSAKeyPairGenContext :
  61         public AppleCSPContext, private AppleKeyPairGenContext  {
  62 public:
  63         RSAKeyPairGenContext(
  64                 AppleCSPSession &session,
  65                 const Context &) :
  66                         AppleCSPContext(session) {}
  67
  68         ~RSAKeyPairGenContext() { }
  69
  70         /* no init functionality, but we need to implement it */
  71         void init(
  72                 const Context &,
  73                 bool) { }
  74
  75         // this one is specified in, and called from, CSPFullPluginSession
  76         void generate(
  77                 const Context   &context,
  78                 CssmKey                 &pubKey,
  79                 CssmKey                 &privKey);
  80
  81         // this one is specified in, and called from, AppleKeyPairGenContext
  82         void generate(
  83                 const Context   &context,
  84                 BinaryKey               &pubBinKey,
  85                 BinaryKey               &privBinKey,
  86                 uint32                  &keySize);
  87
  88 };      /* KeyPairGenContext */
  89
  90 /*
  91  * CSPKeyInfoProvider for RSA keys
  92  */
  93 class RSAKeyInfoProvider : public CSPKeyInfoProvider
  94 {
  95 private:
  96         RSAKeyInfoProvider(
  97                 const CssmKey           &cssmKey);
  98 public:
  99         static CSPKeyInfoProvider *provider(
 100                 const CssmKey &cssmKey);
 101         ~RSAKeyInfoProvider() { }
 102         void CssmKeyToBinary(
 103                 BinaryKey                       **binKey);      // RETURNED
 104         void QueryKeySizeInBits(
 105                 CSSM_KEY_SIZE           &keySize);      // RETURNED
 106 };
 107
 108 /*
 109  * DSA version of a BinaryKey.
 110  */
 111 class DSABinaryKey : public BinaryKey {
 112 public:
 113         DSABinaryKey(DSA *dsaKey = NULL);
 114         ~DSABinaryKey();
 115         void generateKeyBlob(
 116                 CssmAllocator           &allocator,
 117                 CssmData                        &blob,
 118                 CSSM_KEYBLOB_FORMAT     &format);
 119
 120         DSA                                             *mDsaKey;
 121 };
 122
 123 class DSAKeyPairGenContext :
 124         public AppleCSPContext, private AppleKeyPairGenContext  {
 125 public:
 126         DSAKeyPairGenContext(
 127                 AppleCSPSession &session,
 128                 const Context &) :
 129                         AppleCSPContext(session), mGenAttrs(NULL) {}
 130
 131         ~DSAKeyPairGenContext() { freeGenAttrs(); }
 132
 133         /* no init functionality, but we need to implement it */
 134         void init(
 135                 const Context &,
 136                 bool) { }
 137
 138         // this one is specified in, and called from, CSPFullPluginSession
 139         void generate(
 140                 const Context   &context,
 141                 CssmKey                 &pubKey,
 142                 CssmKey                 &privKey);
 143
 144         // this one is specified in, and called from, AppleKeyPairGenContext
 145         void generate(
 146                 const Context   &context,
 147                 BinaryKey               &pubBinKey,
 148                 BinaryKey               &privBinKey,
 149                 uint32                  &keySize);
 150
 151         // specified in, and called from, CSPFullPluginSessionÊ- generate parameters
 152         void generate(
 153                 const Context   &context,
 154                 uint32                  bitSize,
 155                 CssmData                &params,
 156                 uint32                  &attrCount,
 157                 Context::Attr * &attrs);
 158
 159         /*
 160          * Necessary to handle and deflect "context changed" notification which occurs
 161          * after the strange return from "generate parameters", when the plugin adds
 162          * the "returned" values to the Context.
 163          */
 164         bool changed(const Context &context) { return true; }
 165
 166         void dsaGenParams(
 167                 uint32                  keySizeInBits,
 168                 const void              *inSeed,                        // optional
 169                 unsigned                inSeedLen,
 170                 DSAAlgParams    &algParams);
 171
 172 private:
 173         /* gross hack to store attributes "returned" from GenParams */
 174         Context::Attr           *mGenAttrs;
 175         void                            freeGenAttrs();
 176 };      /* KeyPairGenContext */
 177
 178 /*
 179  * CSPKeyInfoProvider for DSA keys
 180  */
 181 class DSAKeyInfoProvider : public CSPKeyInfoProvider
 182 {
 183 private:
 184         DSAKeyInfoProvider(
 185                 const CssmKey           &cssmKey);
 186 public:
 187         static CSPKeyInfoProvider *provider(
 188                 const CssmKey &cssmKey);
 189         ~DSAKeyInfoProvider() { }
 190         void CssmKeyToBinary(
 191                 BinaryKey                       **binKey);      // RETURNED
 192         void QueryKeySizeInBits(
 193                 CSSM_KEY_SIZE           &keySize);      // RETURNED
 194 };
 195
 196 #endif  /* _RSA_DSA_KEYS_H_ */