OSX/libsecurity_apple_cspdl/lib/SSCSPSession.cpp

   1 /*
   2  * Copyright (c) 2000-2001,2011-2012,2014 Apple 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 // SSCSPSession.cpp - Security Server CSP session.
  21 //
  22 #include "SSCSPSession.h"
  23
  24 #include "CSPDLPlugin.h"
  25 #include "SSDatabase.h"
  26 #include "SSDLSession.h"
  27 #include "SSKey.h"
  28 #include <security_cdsa_utilities/cssmbridge.h>
  29 #include <memory>
  30
  31 using namespace std;
  32 using namespace SecurityServer;
  33
  34 //
  35 // SSCSPSession -- Security Server CSP session
  36 //
  37 SSCSPSession::SSCSPSession(CSSM_MODULE_HANDLE handle,
  38                                                    CSPDLPlugin &plug,
  39                                                    const CSSM_VERSION &version,
  40                                                    uint32 subserviceId,
  41                                                    CSSM_SERVICE_TYPE subserviceType,
  42                                                    CSSM_ATTACH_FLAGS attachFlags,
  43                                                    const CSSM_UPCALLS &upcalls,
  44                                                    SSCSPDLSession &ssCSPDLSession,
  45                                                    CssmClient::CSP &rawCsp)
  46 : CSPFullPluginSession(handle, plug, version, subserviceId, subserviceType,
  47                                            attachFlags, upcalls),
  48   mSSCSPDLSession(ssCSPDLSession),
  49   mSSFactory(plug.mSSFactory),
  50   mRawCsp(rawCsp),
  51   mClientSession(Allocator::standard(), *this)
  52 {
  53         mClientSession.registerForAclEdits(SSCSPDLSession::didChangeKeyAclCallback, &mSSCSPDLSession);
  54 }
  55
  56 //
  57 // Called at (CSSM) context create time. This is ignored; we do a full
  58 // context setup later, at setupContext time.
  59 //
  60 CSPFullPluginSession::CSPContext *
  61 SSCSPSession::contextCreate(CSSM_CC_HANDLE handle, const Context &context)
  62 {
  63         return NULL;
  64 }
  65
  66
  67 //
  68 // Called by CSPFullPluginSession when an op is actually commencing.
  69 // Context can safely assumed to be fully formed and stable for the
  70 // duration of the  op; thus we wait until now to set up our
  71 // CSPContext as appropriate to the op.
  72 //
  73 void
  74 SSCSPSession::setupContext(CSPContext * &cspCtx,
  75                                                    const Context &context,
  76                                                    bool encoding)
  77 {
  78         // note we skip this if this CSPContext is being reused
  79     if (cspCtx == NULL)
  80         {
  81
  82                 if (mSSFactory.setup(*this, cspCtx, context, encoding))
  83                         return;
  84
  85 #if 0
  86                 if (mBSafe4Factory.setup(*this, cspCtx, context))
  87                         return;
  88
  89                 if (mCryptKitFactory.setup(*this, cspCtx, context))
  90                         return;
  91 #endif
  92
  93         CssmError::throwMe(CSSMERR_CSP_INVALID_ALGORITHM);
  94         }
  95 }
  96
  97
  98 //
  99 // DL interaction
 100 //
 101 SSDatabase
 102 SSCSPSession::getDatabase(const Context &context)
 103 {
 104         return getDatabase(context.get<CSSM_DL_DB_HANDLE>(CSSM_ATTRIBUTE_DL_DB_HANDLE));
 105 }
 106
 107 SSDatabase
 108 SSCSPSession::getDatabase(CSSM_DL_DB_HANDLE *aDLDbHandle)
 109 {
 110         if (aDLDbHandle)
 111                 return findSession<SSDLSession>(aDLDbHandle->DLHandle).findDbHandle(aDLDbHandle->DBHandle);
 112         else
 113                 return SSDatabase();
 114 }
 115
 116
 117 //
 118 // Reference Key management
 119 //
 120 void
 121 SSCSPSession::makeReferenceKey(KeyHandle inKeyHandle, CssmKey &ioKey, SSDatabase &inSSDatabase,
 122                                                            uint32 inKeyAttr, const CssmData *inKeyLabel)
 123 {
 124         return mSSCSPDLSession.makeReferenceKey(*this, inKeyHandle, ioKey, inSSDatabase, inKeyAttr, inKeyLabel);
 125 }
 126
 127 SSKey &
 128 SSCSPSession::lookupKey(const CssmKey &inKey)
 129 {
 130         return mSSCSPDLSession.lookupKey(inKey);
 131 }
 132
 133
 134 //
 135 // Key creating and handeling members
 136 //
 137 void
 138 SSCSPSession::WrapKey(CSSM_CC_HANDLE CCHandle,
 139                                           const Context &context,
 140                                           const AccessCredentials &AccessCred,
 141                                           const CssmKey &Key,
 142                                           const CssmData *DescriptiveData,
 143                                           CssmKey &WrappedKey,
 144                                           CSSM_PRIVILEGE Privilege)
 145 {
 146         // @@@ Deal with permanent keys
 147         const CssmKey *keyInContext =
 148                 context.get<const CssmKey>(CSSM_ATTRIBUTE_KEY);
 149
 150         KeyHandle contextKeyHandle = (keyInContext
 151                                                                   ? lookupKey(*keyInContext).keyHandle()
 152                                                                   : noKey);
 153         clientSession().wrapKey(context, contextKeyHandle,
 154                                                         lookupKey(Key).keyHandle(), &AccessCred,
 155                                                         DescriptiveData, WrappedKey, *this);
 156 }
 157
 158 void
 159 SSCSPSession::UnwrapKey(CSSM_CC_HANDLE CCHandle,
 160                                                 const Context &context,
 161                                                 const CssmKey *PublicKey,
 162                                                 const CssmWrappedKey &WrappedKey,
 163                                                 uint32 KeyUsage,
 164                                                 uint32 KeyAttr,
 165                                                 const CssmData *KeyLabel,
 166                                                 const CSSM_RESOURCE_CONTROL_CONTEXT *CredAndAclEntry,
 167                                                 CssmKey &UnwrappedKey,
 168                                                 CssmData &DescriptiveData,
 169                                                 CSSM_PRIVILEGE Privilege)
 170 {
 171         SSDatabase database = getDatabase(context);
 172         validateKeyAttr(KeyAttr);
 173         const AccessCredentials *cred = NULL;
 174         const AclEntryInput *owner = NULL;
 175         if (CredAndAclEntry)
 176         {
 177                 cred = AccessCredentials::overlay(CredAndAclEntry->AccessCred);
 178                 owner = &AclEntryInput::overlay(CredAndAclEntry->InitialAclEntry);
 179         }
 180
 181         KeyHandle publicKey = noKey;
 182         if (PublicKey)
 183         {
 184                 if (PublicKey->blobType() == CSSM_KEYBLOB_RAW)
 185                 {
 186                         // @@@ We need to unwrap the publicKey into the SecurityServer
 187                         // before continuing
 188                         CssmError::throwMe(CSSMERR_CSP_INVALID_KEY);
 189                 }
 190                 else
 191                         publicKey = lookupKey(*PublicKey).keyHandle();
 192         }
 193
 194         // @@@ Deal with permanent keys
 195         const CssmKey *keyInContext =
 196                 context.get<const CssmKey>(CSSM_ATTRIBUTE_KEY);
 197
 198         KeyHandle contextKeyHandle =
 199                 keyInContext ? lookupKey(*keyInContext).keyHandle() : noKey;
 200
 201         KeyHandle unwrappedKeyHandle;
 202         clientSession().unwrapKey(database.dbHandle(), context, contextKeyHandle,
 203                                                           publicKey, WrappedKey, KeyUsage, KeyAttr,
 204                                                           cred, owner, DescriptiveData, unwrappedKeyHandle,
 205                                                           UnwrappedKey.header(), *this);
 206         makeReferenceKey(unwrappedKeyHandle, UnwrappedKey, database, KeyAttr,
 207                                          KeyLabel);
 208 }
 209
 210 void
 211 SSCSPSession::DeriveKey(CSSM_CC_HANDLE ccHandle,
 212                                                 const Context &context,
 213                                                 CssmData &param,
 214                                                 uint32 keyUsage,
 215                                                 uint32 keyAttr,
 216                                                 const CssmData *keyLabel,
 217                                                 const CSSM_RESOURCE_CONTROL_CONTEXT *credAndAclEntry,
 218                                                 CssmKey &derivedKey)
 219 {
 220         SSDatabase database = getDatabase(context);
 221         validateKeyAttr(keyAttr);
 222         const AccessCredentials *cred = NULL;
 223         const AclEntryInput *owner = NULL;
 224         if (credAndAclEntry)
 225         {
 226                 cred = AccessCredentials::overlay(credAndAclEntry->AccessCred);
 227                 owner = &AclEntryInput::overlay(credAndAclEntry->InitialAclEntry);
 228         }
 229
 230         /* optional BaseKey */
 231         const CssmKey *keyInContext =
 232                 context.get<const CssmKey>(CSSM_ATTRIBUTE_KEY);
 233         KeyHandle contextKeyHandle =
 234                 keyInContext ? lookupKey(*keyInContext).keyHandle() : noKey;
 235         KeyHandle keyHandle;
 236         switch(context.algorithm()) {
 237         case CSSM_ALGID_KEYCHAIN_KEY:
 238                 {
 239                         // special interpretation: take DLDBHandle -> DbHandle from params
 240                         clientSession().extractMasterKey(database.dbHandle(), context,
 241                                 getDatabase(param.interpretedAs<CSSM_DL_DB_HANDLE>(CSSMERR_CSP_INVALID_ATTR_DL_DB_HANDLE)).dbHandle(),
 242                                 keyUsage, keyAttr, cred, owner, keyHandle, derivedKey.header());
 243                 }
 244                 break;
 245         default:
 246                 clientSession().deriveKey(database.dbHandle(), context, contextKeyHandle, keyUsage,
 247                                         keyAttr, param, cred, owner, keyHandle, derivedKey.header());
 248                 break;
 249         }
 250         makeReferenceKey(keyHandle, derivedKey, database, keyAttr, keyLabel);
 251 }
 252
 253 void
 254 SSCSPSession::GenerateKey(CSSM_CC_HANDLE ccHandle,
 255                                                   const Context &context,
 256                                                   uint32 keyUsage,
 257                                                   uint32 keyAttr,
 258                                                   const CssmData *keyLabel,
 259                                                   const CSSM_RESOURCE_CONTROL_CONTEXT *credAndAclEntry,
 260                                                   CssmKey &key,
 261                                                   CSSM_PRIVILEGE privilege)
 262 {
 263         SSDatabase database = getDatabase(context);
 264         validateKeyAttr(keyAttr);
 265         const AccessCredentials *cred = NULL;
 266         const AclEntryInput *owner = NULL;
 267         if (credAndAclEntry)
 268         {
 269                 cred = AccessCredentials::overlay(credAndAclEntry->AccessCred);
 270                 owner = &AclEntryInput::overlay(credAndAclEntry->InitialAclEntry);
 271         }
 272
 273         KeyHandle keyHandle;
 274         clientSession().generateKey(database.dbHandle(), context, keyUsage,
 275                                                                 keyAttr, cred, owner, keyHandle, key.header());
 276         makeReferenceKey(keyHandle, key, database, keyAttr, keyLabel);
 277 }
 278
 279 void
 280 SSCSPSession::GenerateKeyPair(CSSM_CC_HANDLE ccHandle,
 281                                                           const Context &context,
 282                                                           uint32 publicKeyUsage,
 283                                                           uint32 publicKeyAttr,
 284                                                           const CssmData *publicKeyLabel,
 285                                                           CssmKey &publicKey,
 286                                                           uint32 privateKeyUsage,
 287                                                           uint32 privateKeyAttr,
 288                                                           const CssmData *privateKeyLabel,
 289                                                           const CSSM_RESOURCE_CONTROL_CONTEXT *credAndAclEntry,
 290                                                           CssmKey &privateKey,
 291                                                           CSSM_PRIVILEGE privilege)
 292 {
 293         SSDatabase database = getDatabase(context);
 294         validateKeyAttr(publicKeyAttr);
 295         validateKeyAttr(privateKeyAttr);
 296         const AccessCredentials *cred = NULL;
 297         const AclEntryInput *owner = NULL;
 298         if (credAndAclEntry)
 299         {
 300                 cred = AccessCredentials::overlay(credAndAclEntry->AccessCred);
 301                 owner = &AclEntryInput::overlay(credAndAclEntry->InitialAclEntry);
 302         }
 303
 304         /*
 305          * Public keys must be extractable in the clear - that's the Apple
 306          * policy. The raw CSP is unable to enforce the extractable
 307          * bit since it always sees that as true (it's managed and forced
 308          * true by the SecurityServer). So...
 309          */
 310         if(!(publicKeyAttr & CSSM_KEYATTR_EXTRACTABLE)) {
 311                         CssmError::throwMe(CSSMERR_CSP_INVALID_KEYATTR_MASK);
 312         }
 313         KeyHandle pubKeyHandle, privKeyHandle;
 314         clientSession().generateKey(database.dbHandle(), context,
 315                                                            publicKeyUsage, publicKeyAttr,
 316                                                            privateKeyUsage, privateKeyAttr,
 317                                                            cred, owner,
 318                                                            pubKeyHandle, publicKey.header(),
 319                                                            privKeyHandle, privateKey.header());
 320         makeReferenceKey(privKeyHandle, privateKey, database, privateKeyAttr,
 321                                          privateKeyLabel);
 322         // @@@ What if this throws, we need to free privateKey.
 323         makeReferenceKey(pubKeyHandle, publicKey, database, publicKeyAttr,
 324                                          publicKeyLabel);
 325 }
 326
 327 void
 328 SSCSPSession::ObtainPrivateKeyFromPublicKey(const CssmKey &PublicKey,
 329                                                                                         CssmKey &PrivateKey)
 330 {
 331         unimplemented();
 332 }
 333
 334 void
 335 SSCSPSession::QueryKeySizeInBits(CSSM_CC_HANDLE CCHandle,
 336                                                                  const Context *Context,
 337                                                                  const CssmKey *Key,
 338                                                                  CSSM_KEY_SIZE &KeySize)
 339 {
 340         unimplemented();
 341 }
 342
 343 void
 344 SSCSPSession::FreeKey(const AccessCredentials *accessCred,
 345                                           CssmKey &ioKey, CSSM_BOOL deleteKey)
 346 {
 347         if (ioKey.blobType() == CSSM_KEYBLOB_REFERENCE)
 348         {
 349         StLock<Mutex> _(mSSCSPDLSession.mKeyDeletionMutex);
 350                 // @@@ Note that this means that detaching a session should free
 351                 // all keys ascociated with it or else...
 352                 // -- or else what?
 353                 // exactly!
 354
 355                 // @@@ There are thread safety issues when deleting a key that is
 356                 // in use by another thread, but the answer to that is: Don't do
 357                 // that!
 358
 359                 // Find the key in the map.  Tell tell the key to free itself
 360                 // (when the unique_ptr deletes the key it removes itself from the map).
 361             secinfo("freeKey", "CSPDL FreeKey");
 362                 unique_ptr<SSKey> ssKey(&mSSCSPDLSession.find<SSKey>(ioKey));
 363                 ssKey->free(accessCred, ioKey, deleteKey);
 364         }
 365         else
 366         {
 367                 CSPFullPluginSession::FreeKey(accessCred, ioKey, deleteKey);
 368         }
 369 }
 370
 371
 372 //
 373 // Generation stuff.
 374 //
 375 void
 376 SSCSPSession::GenerateRandom(CSSM_CC_HANDLE ccHandle,
 377                                                          const Context &context,
 378                                                          CssmData &randomNumber)
 379 {
 380     checkOperation(context.type(), CSSM_ALGCLASS_RANDOMGEN);
 381         // if (context.algorithm() != @@@) CssmError::throwMe(ALGORITHM_NOT_SUPPORTED);
 382         uint32 needed = context.getInt(CSSM_ATTRIBUTE_OUTPUT_SIZE, CSSMERR_CSP_MISSING_ATTR_OUTPUT_SIZE);
 383
 384         // @@@ What about the seed?
 385     if (randomNumber.length())
 386         {
 387         if (randomNumber.length() < needed)
 388             CssmError::throwMe(CSSMERR_CSP_OUTPUT_LENGTH_ERROR);
 389                 clientSession().generateRandom(context, randomNumber);
 390     }
 391         else
 392         {
 393         randomNumber.Data = alloc<uint8>(needed);
 394                 try
 395                 {
 396                         clientSession().generateRandom(context, randomNumber);
 397                 }
 398                 catch(...)
 399                 {
 400                         free(randomNumber.Data);
 401                         randomNumber.Data = NULL;
 402                         throw;
 403                 }
 404         }
 405 }
 406
 407 //
 408 // Login/Logout and token operational maintainance.  These mean little
 409 // without support by the actual implementation, but we can help...
 410 // @@@ Should this be in CSP[non-Full]PluginSession?
 411 //
 412 void
 413 SSCSPSession::Login(const AccessCredentials &AccessCred,
 414                                         const CssmData *LoginName,
 415                                         const void *Reserved)
 416 {
 417         // @@@ Do a login to the securityServer making keys persistent until it
 418         // goes away
 419         unimplemented();
 420 }
 421
 422 void
 423 SSCSPSession::Logout()
 424 {
 425         unimplemented();
 426 }
 427
 428 void
 429 SSCSPSession::VerifyDevice(const CssmData &DeviceCert)
 430 {
 431         CssmError::throwMe(CSSMERR_CSP_DEVICE_VERIFY_FAILED);
 432 }
 433
 434 void
 435 SSCSPSession::GetOperationalStatistics(CSPOperationalStatistics &statistics)
 436 {
 437         unimplemented();
 438 }
 439
 440
 441 //
 442 // Utterly miscellaneous, rarely used, strange functions
 443 //
 444 void
 445 SSCSPSession::RetrieveCounter(CssmData &Counter)
 446 {
 447         unimplemented();
 448 }
 449
 450 void
 451 SSCSPSession::RetrieveUniqueId(CssmData &UniqueID)
 452 {
 453         unimplemented();
 454 }
 455
 456 void
 457 SSCSPSession::GetTimeValue(CSSM_ALGORITHMS TimeAlgorithm, CssmData &TimeData)
 458 {
 459         unimplemented();
 460 }
 461
 462
 463 //
 464 // ACL retrieval and change operations
 465 //
 466 void
 467 SSCSPSession::GetKeyOwner(const CssmKey &Key,
 468                                                   CSSM_ACL_OWNER_PROTOTYPE &Owner)
 469 {
 470         lookupKey(Key).getOwner(Owner, *this);
 471 }
 472
 473 void
 474 SSCSPSession::ChangeKeyOwner(const AccessCredentials &AccessCred,
 475                                                          const CssmKey &Key,
 476                                                          const CSSM_ACL_OWNER_PROTOTYPE &NewOwner)
 477 {
 478         lookupKey(Key).changeOwner(AccessCred,
 479                                                            AclOwnerPrototype::overlay(NewOwner));
 480 }
 481
 482 void
 483 SSCSPSession::GetKeyAcl(const CssmKey &Key,
 484                                                 const CSSM_STRING *SelectionTag,
 485                                                 uint32 &NumberOfAclInfos,
 486                                                 CSSM_ACL_ENTRY_INFO_PTR &AclInfos)
 487 {
 488         lookupKey(Key).getAcl(reinterpret_cast<const char *>(SelectionTag),
 489                                                   NumberOfAclInfos,
 490                                                   reinterpret_cast<AclEntryInfo *&>(AclInfos), *this);
 491 }
 492
 493 void
 494 SSCSPSession::ChangeKeyAcl(const AccessCredentials &AccessCred,
 495                                                    const CSSM_ACL_EDIT &AclEdit,
 496                                                    const CssmKey &Key)
 497 {
 498         lookupKey(Key).changeAcl(AccessCred, AclEdit::overlay(AclEdit));
 499 }
 500
 501 void
 502 SSCSPSession::GetLoginOwner(CSSM_ACL_OWNER_PROTOTYPE &Owner)
 503 {
 504         unimplemented();
 505 }
 506
 507 void
 508 SSCSPSession::ChangeLoginOwner(const AccessCredentials &AccessCred,
 509                                                            const CSSM_ACL_OWNER_PROTOTYPE &NewOwner)
 510 {
 511         unimplemented();
 512 }
 513
 514 void
 515 SSCSPSession::GetLoginAcl(const CSSM_STRING *SelectionTag,
 516                                                   uint32 &NumberOfAclInfos,
 517                                                   CSSM_ACL_ENTRY_INFO_PTR &AclInfos)
 518 {
 519         unimplemented();
 520 }
 521
 522 void
 523 SSCSPSession::ChangeLoginAcl(const AccessCredentials &AccessCred,
 524                                                          const CSSM_ACL_EDIT &AclEdit)
 525 {
 526         unimplemented();
 527 }
 528
 529
 530
 531 //
 532 // Passthroughs
 533 //
 534 void
 535 SSCSPSession::PassThrough(CSSM_CC_HANDLE CCHandle,
 536                                                   const Context &context,
 537                                                   uint32 passThroughId,
 538                                                   const void *inData,
 539                                                   void **outData)
 540 {
 541     checkOperation(context.type(), CSSM_ALGCLASS_NONE);
 542         switch (passThroughId) {
 543         case CSSM_APPLESCPDL_CSP_GET_KEYHANDLE:
 544         {
 545                 // inData unused, must be NULL
 546                 if (inData)
 547                         CssmError::throwMe(CSSM_ERRCODE_INVALID_INPUT_POINTER);
 548
 549                 // outData required, must be pointer-to-pointer-to-KeyHandle
 550                 KeyHandle &result = Required(reinterpret_cast<KeyHandle *>(outData));
 551
 552                 // we'll take the key from the context
 553                 const CssmKey &key =
 554                         context.get<const CssmKey>(CSSM_ATTRIBUTE_KEY,  CSSMERR_CSP_MISSING_ATTR_KEY);
 555
 556                 // all ready
 557                 result = lookupKey(key).keyHandle();
 558                 break;
 559         }
 560         case CSSM_APPLECSP_KEYDIGEST:
 561         {
 562                 // inData unused, must be NULL
 563                 if (inData)
 564                         CssmError::throwMe(CSSM_ERRCODE_INVALID_INPUT_POINTER);
 565
 566                 // outData required
 567                 Required(outData);
 568
 569                 // take the key from the context, convert to KeyHandle
 570                 const CssmKey &key =
 571                         context.get<const CssmKey>(CSSM_ATTRIBUTE_KEY,  CSSMERR_CSP_MISSING_ATTR_KEY);
 572                 KeyHandle keyHandle = lookupKey(key).keyHandle();
 573
 574                 // allocate digest holder on app's behalf
 575                 CSSM_DATA *digest = alloc<CSSM_DATA>(sizeof(CSSM_DATA));
 576                 digest->Data = NULL;
 577                 digest->Length = 0;
 578
 579                 // go
 580                 try {
 581                         clientSession().getKeyDigest(keyHandle, CssmData::overlay(*digest));
 582                 }
 583                 catch(...) {
 584                         free(digest);
 585                         throw;
 586                 }
 587                 *outData = digest;
 588                 break;
 589         }
 590
 591         default:
 592                 CssmError::throwMe(CSSM_ERRCODE_INVALID_PASSTHROUGH_ID);
 593         }
 594 }
 595
 596 /* Validate requested key attr flags for newly generated keys */
 597 void SSCSPSession::validateKeyAttr(uint32 reqKeyAttr)
 598 {
 599         if(reqKeyAttr & (CSSM_KEYATTR_RETURN_DATA)) {
 600                 /* CSPDL only supports reference keys */
 601                 CssmError::throwMe(CSSMERR_CSP_UNSUPPORTED_KEYATTR_MASK);
 602         }
 603         if(reqKeyAttr & (CSSM_KEYATTR_ALWAYS_SENSITIVE |
 604                                      CSSM_KEYATTR_NEVER_EXTRACTABLE)) {
 605                 /* invalid for any CSP */
 606                 CssmError::throwMe(CSSMERR_CSP_INVALID_KEYATTR_MASK);
 607         }
 608         /* There may be more, but we'll leave it to SS and CSP to decide */
 609 }