AppleCSP/MiscCSPAlgs/miscAlgFactory.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 // miscAlgFactory.h - miscellaneous algorithm factory
  21 // Written by Doug Mitchell 3/28/2001
  22 //
  23
  24 #include "miscAlgFactory.h"
  25 #include <AES/aescspi.h>
  26 #include <AES/gladmanContext.h>
  27 #include "desContext.h"
  28 #include "rc2Context.h"
  29 #include "rc4Context.h"
  30 #include "rc5Context.h"
  31 #include "MacContext.h"
  32 #include "DigestContext.h"
  33 #include "SHA1_MD5_Object.h"                    /* raw digest */
  34 #include "MD2Object.h"
  35 #include "NullCryptor.h"
  36 #include "bfContext.h"
  37 #include "castContext.h"
  38 #include <Security/cssmapple.h>
  39
  40 /*
  41  * These #defines are mainly to facilitate measuring the performance of our own
  42  * implementation vs. the ones in BSafe. This factory gets called first; if
  43  * we disable e.g. DES here the BSAFE version will be used.
  44  */
  45 #ifdef  BSAFE_CSP_ENABLE
  46
  47 #define MAF_DES_ENABLE          0
  48 #define MAF_DES3_ENABLE         0
  49 #define MAF_RC2_ENABLE          0
  50 #define MAF_RC4_ENABLE          0
  51 #define MAF_RC5_ENABLE          0
  52 #define MAF_MAC_ENABLE          0
  53
  54 #else   /* !BSAFE_CSP_ENABLE, normal case */
  55
  56 #define MAF_DES_ENABLE          1
  57 #define MAF_DES3_ENABLE         1
  58 #define MAF_RC2_ENABLE          1
  59 #define MAF_RC4_ENABLE          1
  60 #define MAF_RC5_ENABLE          1
  61 #define MAF_MAC_ENABLE          1
  62
  63 #endif  /* BSAFE_CSP_ENABLE */
  64
  65 #if     (!MAF_DES_ENABLE || !MAF_DES3_ENABLE || !MAF_RC2_ENABLE || !MAF_RC4_ENABLE || \
  66                 !MAF_RC5_ENABLE || !MAF_MAC_ENABLE)
  67 #warning        Internal DES/RC2/RC4/RC5/Mac implementation disabled!
  68 #endif
  69
  70 bool MiscAlgFactory::setup(
  71         AppleCSPSession &session,
  72         CSPFullPluginSession::CSPContext * &cspCtx,
  73         const Context &context)
  74 {
  75         CSSM_CONTEXT_TYPE ctype = context.type();
  76         CSSM_ALGORITHMS alg = context.algorithm();
  77
  78         switch(ctype) {
  79                 case CSSM_ALGCLASS_SYMMETRIC:
  80                         switch(alg) {
  81                                 case CSSM_ALGID_AES:
  82                                         if(cspCtx == NULL) {
  83                                                 /*
  84                                                  * Get optional block size to determine correct implementation
  85                                                  */
  86                                                 uint32 blockSize = context.getInt(CSSM_ATTRIBUTE_BLOCK_SIZE);
  87                                                 if(blockSize == 0) {
  88                                                         blockSize = GLADMAN_BLOCK_SIZE_BYTES;
  89                                                 }
  90                                                 if(GLADMAN_AES_128_ENABLE &&
  91                                                         (blockSize == GLADMAN_BLOCK_SIZE_BYTES)) {
  92                                                         cspCtx = new GAESContext(session);
  93                                                 }
  94                                                 else {
  95                                                         cspCtx = new AESContext(session);
  96                                                 }
  97                                         }
  98                                         return true;
  99
 100                                 #if             MAF_DES_ENABLE
 101                                 case CSSM_ALGID_DES:
 102                                         if(cspCtx == NULL) {
 103                                                 cspCtx = new DESContext(session);
 104                                         }
 105                                         return true;
 106                                 #endif  /* MAF_DES_ENABLE */
 107
 108                                 #if             MAF_DES3_ENABLE
 109                                 /*
 110                                  * TripleDES: for some reason, cssmtype.h defines different symbols
 111                                  * for CSSM_ALGID_3DES_3KEY (key gen) and CSSM_ALGID_3DES_3KEY_EDE
 112                                  * (an encrypt alg with mode), but they define to the same value.
 113                                  */
 114                                 case CSSM_ALGID_3DES_3KEY_EDE:
 115                                         if(cspCtx == NULL) {
 116                                                 cspCtx = new DES3Context(session);
 117                                         }
 118                                         return true;
 119                                 #endif
 120
 121                                 #if             MAF_RC2_ENABLE
 122                                 case CSSM_ALGID_RC2:
 123                                         if(cspCtx == NULL) {
 124                                                 cspCtx = new RC2Context(session);
 125                                         }
 126                                         return true;
 127                                 #endif
 128
 129                                 #if             MAF_RC4_ENABLE
 130                                 case CSSM_ALGID_RC4:
 131                                         if(cspCtx == NULL) {
 132                                                 cspCtx = new RC4Context(session);
 133                                         }
 134                                         return true;
 135                                 #endif
 136
 137                                 #if             MAF_RC5_ENABLE
 138                                 case CSSM_ALGID_RC5:
 139                                         if(cspCtx == NULL) {
 140                                                 cspCtx = new RC5Context(session);
 141                                         }
 142                                         return true;
 143                                 #endif
 144
 145                                 case CSSM_ALGID_BLOWFISH:
 146                                         if(cspCtx == NULL) {
 147                                                 cspCtx = new BlowfishContext(session);
 148                                         }
 149                                         return true;
 150
 151                                 case CSSM_ALGID_CAST:
 152                                 case CSSM_ALGID_CAST5:
 153                                         if(cspCtx == NULL) {
 154                                                 cspCtx = new CastContext(session);
 155                                         }
 156                                         return true;
 157
 158                                 #if             NULL_CRYPT_ENABLE
 159                                 case CSSM_ALGID_NONE:
 160                                         if(cspCtx == NULL) {
 161                                                 cspCtx = new NullCryptor(session);
 162                                         }
 163                                         return true;
 164                                 #endif  /* NULL_CRYPT_ENABLE */
 165
 166                                 default:
 167                                         break;  // not our symmetric alg
 168                         }                               // switch alg for symmetric
 169                         break;                  // from case CSSM_ALGCLASS_SYMMETRIC
 170
 171                 /* digest algorithms always enabled here */
 172                 case CSSM_ALGCLASS_DIGEST:
 173                         switch(alg) {
 174                                 case CSSM_ALGID_SHA1:
 175                                         if(cspCtx == NULL) {
 176                                                 /* reuse is OK */
 177                                                 cspCtx = new DigestContext(session,
 178                                                                 *(new SHA1Object));
 179                                         }
 180                                         return true;
 181                                 case CSSM_ALGID_MD5:
 182                                         if(cspCtx == NULL) {
 183                                                 /* reuse is OK */
 184                                                 cspCtx = new DigestContext(session,
 185                                                                 *(new MD5Object));
 186                                         }
 187                                         return true;
 188                                 case CSSM_ALGID_MD2:
 189                                         if(cspCtx == NULL) {
 190                                                 /* reuse is OK */
 191                                                 cspCtx = new DigestContext(session,
 192                                                                 *(new MD2Object));
 193                                         }
 194                                         return true;
 195                                 default:
 196                                         break;          // not our digest alg
 197                         }                                       // switch digest alg
 198                         break;                          // from case CSSM_ALGCLASS_DIGEST
 199
 200                 case CSSM_ALGCLASS_KEYGEN:
 201                         switch(alg) {
 202                                 case CSSM_ALGID_AES:
 203                                         if(cspCtx == NULL) {
 204                                                 cspCtx = new AESKeyGenContext(session);
 205                                         }
 206                                         return true;
 207
 208                                 #if             MAF_DES_ENABLE
 209                                 case CSSM_ALGID_DES:
 210                                         if(cspCtx == NULL) {
 211                                                 cspCtx = new AppleSymmKeyGenerator(session,
 212                                                         DES_KEY_SIZE_BITS_EXTERNAL,
 213                                                         DES_KEY_SIZE_BITS_EXTERNAL,
 214                                                         true);                          // must be byte size
 215                                         }
 216                                         return true;
 217                                 #endif  /* MAF_DES_ENABLE */
 218
 219                                 #if             MAF_DES3_ENABLE
 220                                 case CSSM_ALGID_3DES_3KEY_EDE:
 221                                         if(cspCtx == NULL) {
 222                                                 cspCtx = new AppleSymmKeyGenerator(session,
 223                                                         DES3_KEY_SIZE_BYTES * 8,
 224                                                         DES3_KEY_SIZE_BYTES * 8,
 225                                                         true);                  // must be byte size
 226                                         }
 227                                         return true;
 228                                 #endif
 229
 230                                 #if             MAF_RC2_ENABLE
 231                                 case CSSM_ALGID_RC2:
 232                                         if(cspCtx == NULL) {
 233                                                 cspCtx = new AppleSymmKeyGenerator(session,
 234                                                         RC2_MIN_KEY_SIZE_BYTES * 8,
 235                                                         RC2_MAX_KEY_SIZE_BYTES * 8,
 236                                                         true);                          // must be byte size
 237                                         }
 238                                         return true;
 239                                 #endif
 240
 241                                 #if             MAF_RC4_ENABLE
 242                                 case CSSM_ALGID_RC4:
 243                                         if(cspCtx == NULL) {
 244                                                 cspCtx = new AppleSymmKeyGenerator(session,
 245                                                         RC4_MIN_KEY_SIZE_BYTES * 8,
 246                                                         RC4_MAX_KEY_SIZE_BYTES * 8,
 247                                                         true);                          // must be byte size
 248                                         }
 249                                         return true;
 250                                 #endif
 251
 252                                 #if             MAF_RC5_ENABLE
 253                                 case CSSM_ALGID_RC5:
 254                                         if(cspCtx == NULL) {
 255                                                 cspCtx = new AppleSymmKeyGenerator(session,
 256                                                         RC5_MIN_KEY_SIZE_BYTES * 8,
 257                                                         RC5_MAX_KEY_SIZE_BYTES * 8,
 258                                                         true);                          // must be byte size
 259                                         }
 260                                         return true;
 261                                 #endif
 262
 263                                 case CSSM_ALGID_BLOWFISH:
 264                                         if(cspCtx == NULL) {
 265                                                 cspCtx = new AppleSymmKeyGenerator(session,
 266                                                         BF_MIN_KEY_SIZE_BYTES * 8,
 267                                                         BF_MAX_KEY_SIZE_BYTES * 8,
 268                                                         true);                          // must be byte size
 269                                         }
 270                                         return true;
 271
 272                                 /* Note we require keys to be ALGID_CAST, not ALGID_CAST5 */
 273                                 case CSSM_ALGID_CAST:
 274                                         if(cspCtx == NULL) {
 275                                                 cspCtx = new AppleSymmKeyGenerator(session,
 276                                                         CAST_MIN_KEY_LENGTH * 8,
 277                                                         CAST_KEY_LENGTH * 8,
 278                                                         true);                          // must be byte size
 279                                         }
 280                                         return true;
 281
 282                                 #if             MAF_MAC_ENABLE
 283                                 case CSSM_ALGID_SHA1HMAC:
 284                                         if(cspCtx == NULL) {
 285                                                 cspCtx = new AppleSymmKeyGenerator(session,
 286                                                         HMAC_SHA_MIN_KEY_SIZE * 8,
 287                                                         HMAC_MAX_KEY_SIZE * 8,
 288                                                         true);                          // must be byte size
 289                                         }
 290                                         return true;
 291                                 case CSSM_ALGID_MD5HMAC:
 292                                         if(cspCtx == NULL) {
 293                                                 cspCtx = new AppleSymmKeyGenerator(session,
 294                                                         HMAC_MD5_MIN_KEY_SIZE * 8,
 295                                                         HMAC_MAX_KEY_SIZE * 8,
 296                                                         true);                          // must be byte size
 297                                         }
 298                                         return true;
 299                                 #endif
 300
 301                                 #if             NULL_CRYPT_ENABLE
 302                                 case CSSM_ALGID_NONE:
 303                                         if(cspCtx == NULL) {
 304                                                 cspCtx = new AppleSymmKeyGenerator(session,
 305                                                         NULL_CRYPT_BLOCK_SIZE * 8,
 306                                                         NULL_CRYPT_BLOCK_SIZE * 8,
 307                                                         true);                          // must be byte size
 308                                         }
 309                                         return true;
 310                                 #endif  /* NULL_CRYPT_ENABLE */
 311
 312                                 default:
 313                                         break;  // not our keygen alg
 314                         }                               // switch alg for keygen
 315                         break;                  // from case CSSM_ALGCLASS_KEYGEN
 316
 317                 case CSSM_ALGCLASS_MAC:
 318                         switch(alg) {
 319                                 #if             MAF_MAC_ENABLE
 320                                 case CSSM_ALGID_SHA1HMAC:
 321                                 case CSSM_ALGID_MD5HMAC:
 322                                         if(cspCtx == NULL) {
 323                                                 cspCtx = new MacContext(session, alg);
 324                                         }
 325                                         return true;
 326                                 #endif
 327                                 #if             CRYPTKIT_CSP_ENABLE
 328                                 case CSSM_ALGID_SHA1HMAC_LEGACY:
 329                                         if(cspCtx == NULL) {
 330                                                 cspCtx = new MacLegacyContext(session, alg);
 331                                         }
 332                                         return true;
 333                                 #endif
 334                                 default:
 335                                         /* not our mac alg */
 336                                         break;
 337                         }
 338                         break;
 339
 340                 default:
 341                         break;                  // not our context type
 342         }                                               // switch context type
 343
 344         /* not ours */
 345         return false;
 346 }