src/manager/service/ckm-logic.cpp

   1 /*
   2  *  Copyright (c) 2014-2021 Samsung Electronics Co., Ltd. All rights reserved
   3  *
   4  *  Licensed under the Apache License, Version 2.0 (the "License");
   5  *  you may not use this file except in compliance with the License.
   6  *  You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  *  Unless required by applicable law or agreed to in writing, software
  11  *  distributed under the License is distributed on an "AS IS" BASIS,
  12  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  *  See the License for the specific language governing permissions and
  14  *  limitations under the License
  15  *
  16  *
  17  * @file        ckm-logic.cpp
  18  * @author      Bartlomiej Grzelewski (b.grzelewski@samsung.com)
  19  * @version     1.0
  20  * @brief       Sample service implementation.
  21  */
  22 #include <dpl/serialization.h>
  23 #include <dpl/log/log.h>
  24 #include <ckm/ckm-error.h>
  25 #include <ckm/ckm-type.h>
  26 #include <key-provider.h>
  27 #include <file-system.h>
  28 #include <ckm-logic.h>
  29 #include <key-impl.h>
  30 #include <key-aes-impl.h>
  31 #include <certificate-config.h>
  32 #include <certificate-store.h>
  33 #include <algorithm>
  34 #include <sw-backend/store.h>
  35 #include <generic-backend/exception.h>
  36 #include <ss-migrate.h>
  37
  38 namespace {
  39 const char *const CERT_SYSTEM_DIR          = CA_CERTS_DIR;
  40 const char *const DEFAULT_UNLOCK_STRING    = "cAtRugU7";
  41
  42 bool isClientValid(const CKM::ClientId &client)
  43 {
  44         if (client.find(CKM::ALIAS_SEPARATOR) != CKM::ClientId::npos)
  45                 return false;
  46
  47         return true;
  48 }
  49
  50 bool isNameValid(const CKM::Name &name)
  51 {
  52         if (name.find(CKM::ALIAS_SEPARATOR) != CKM::Name::npos)
  53                 return false;
  54
  55         return true;
  56 }
  57
  58 // keypair data type, having private key data type and public key data type
  59 // private is assumed to be .first, public .second
  60 using DataTypePair = std::pair<CKM::DataType, CKM::DataType>;
  61
  62 const std::map<CKM::AlgoType, DataTypePair> ALGO_TYPE_TO_DATA_TYPE_PAIR_MAP = {
  63         { CKM::AlgoType::RSA_GEN,       { CKM::DataType(CKM::KeyType::KEY_RSA_PRIVATE), CKM::DataType(CKM::KeyType::KEY_RSA_PUBLIC) } },
  64         { CKM::AlgoType::DSA_GEN,       { CKM::DataType(CKM::KeyType::KEY_DSA_PRIVATE), CKM::DataType(CKM::KeyType::KEY_DSA_PUBLIC) } },
  65         { CKM::AlgoType::ECDSA_GEN,     { CKM::DataType(CKM::KeyType::KEY_ECDSA_PRIVATE), CKM::DataType(CKM::KeyType::KEY_ECDSA_PUBLIC) } },
  66 };
  67
  68 } // anonymous namespace
  69
  70 namespace CKM {
  71
  72 namespace {
  73
  74 template <int ERROR_ON_CKM_EXCEPTION = CKM_API_ERROR_SERVER_ERROR, class F>
  75 int tryRet(F &&f)
  76 {
  77         try {
  78                 static_assert(std::is_same_v<decltype(std::forward<F>(f)()), int>);
  79                 return std::forward<F>(f)();
  80         } catch (const Exc::Exception &e) {
  81                 return e.error();
  82         } catch (const CKM::Exception &e) {
  83                 LogError("CKM::Exception: " << e.GetMessage());
  84                 return ERROR_ON_CKM_EXCEPTION;
  85         }
  86 }
  87
  88 int toBinaryData(const Crypto::Data &input, Crypto::Data &output)
  89 {
  90         // verify the data integrity
  91         if (input.type.isKey()) {
  92                 KeyShPtr output_key;
  93
  94                 if (input.type.isSKey())
  95                         output_key = CKM::Key::createAES(input.data);
  96                 else
  97                         output_key = CKM::Key::create(input.data);
  98
  99                 if (output_key.get() == NULL) {
 100                         LogDebug("provided binary data is not valid key data");
 101                         return CKM_API_ERROR_INPUT_PARAM;
 102                 }
 103
 104                 output = Crypto::Data(input.type, output_key->getDER());
 105         } else if (input.type.isCertificate() || input.type.isChainCert()) {
 106                 CertificateShPtr cert = CKM::Certificate::create(input.data,
 107                                                                 DataFormat::FORM_DER);
 108
 109                 if (cert.get() == NULL) {
 110                         LogDebug("provided binary data is not valid certificate data");
 111                         return CKM_API_ERROR_INPUT_PARAM;
 112                 }
 113
 114                 output = Crypto::Data(input.type, cert->getDER());
 115         } else {
 116                 output = input;
 117         }
 118
 119         // TODO: add here BINARY_DATA verification, i.e: max size etc.
 120         return CKM_API_SUCCESS;
 121 }
 122
 123 int verifyBinaryData(Crypto::Data &input)
 124 {
 125         Crypto::Data dummy;
 126         return toBinaryData(input, dummy);
 127 }
 128
 129 int readSingleRow(const Name &name,
 130                 const ClientId &owner,
 131                 DataType dataType,
 132                 DB::Crypto &database,
 133                 DB::Row &row)
 134 {
 135         DB::Crypto::RowOptional row_optional;
 136
 137         if (dataType.isKey()) {
 138                 // read all key types
 139                 row_optional = database.getRow(name,
 140                                                                            owner,
 141                                                                            DataType::DB_KEY_FIRST,
 142                                                                            DataType::DB_KEY_LAST);
 143         } else {
 144                 // read anything else
 145                 row_optional = database.getRow(name,
 146                                                                            owner,
 147                                                                            dataType);
 148         }
 149
 150         if (!row_optional) {
 151                 LogDebug("No row for given name, owner and type");
 152                 return CKM_API_ERROR_DB_ALIAS_UNKNOWN;
 153         } else {
 154                 row = *row_optional;
 155         }
 156
 157         return CKM_API_SUCCESS;
 158 }
 159
 160 int readMultiRow(const Name &name,
 161                 const ClientId &owner,
 162                 DataType dataType,
 163                 DB::Crypto &database,
 164                 DB::RowVector &output)
 165 {
 166         if (dataType.isKey())
 167                 // read all key types
 168                 database.getRows(name,
 169                                                  owner,
 170                                                  DataType::DB_KEY_FIRST,
 171                                                  DataType::DB_KEY_LAST,
 172                                                  output);
 173         else if (dataType.isChainCert())
 174                 // read all key types
 175                 database.getRows(name,
 176                                                  owner,
 177                                                  DataType::DB_CHAIN_FIRST,
 178                                                  DataType::DB_CHAIN_LAST,
 179                                                  output);
 180         else
 181                 // read anything else
 182                 database.getRows(name,
 183                                                  owner,
 184                                                  dataType,
 185                                                  output);
 186
 187         if (!output.size()) {
 188                 LogDebug("No row for given name, owner and type");
 189                 return CKM_API_ERROR_DB_ALIAS_UNKNOWN;
 190         }
 191
 192         return CKM_API_SUCCESS;
 193 }
 194
 195 int loadAppKey(UserData &handle, const ClientId &owner)
 196 {
 197         if (!handle.crypto.haveKey(owner)) {
 198                 RawBuffer key;
 199                 auto key_optional = handle.database.getKey(owner);
 200
 201                 if (!key_optional) {
 202                         LogError("No key for given owner in database");
 203                         return CKM_API_ERROR_DB_ERROR;
 204                 }
 205
 206                 key = *key_optional;
 207                 key = handle.keyProvider.getPureDEK(key);
 208                 handle.crypto.pushKey(owner, key);
 209         }
 210
 211         return CKM_API_SUCCESS;
 212 }
 213
 214 } // namespace
 215
 216 const uid_t CKMLogic::SYSTEM_DB_UID = 0;
 217 const uid_t CKMLogic::ADMIN_USER_DB_UID = 5001;
 218
 219 CKMLogic::CKMLogic()
 220 {
 221         CertificateConfig::addSystemCertificateDir(CERT_SYSTEM_DIR);
 222
 223         m_accessControl.updateCCMode();
 224 }
 225
 226 CKMLogic::~CKMLogic() {}
 227
 228 void CKMLogic::loadDKEKFile(uid_t user, const Password &password)
 229 {
 230         auto &handle = m_userDataMap[user];
 231
 232         FileSystem fs(user);
 233
 234         auto wrappedDKEK = fs.getDKEK();
 235
 236         if (wrappedDKEK.empty()) {
 237                 wrappedDKEK = KeyProvider::generateDomainKEK(std::to_string(user), password);
 238                 fs.saveDKEK(wrappedDKEK);
 239         }
 240
 241         handle.keyProvider = KeyProvider(wrappedDKEK, password);
 242         if (!handle.keyProvider.isInitialized()) {
 243                 handle.keyProvider.migrateDomainKEK(wrappedDKEK, password);
 244                 fs.saveDKEK(handle.keyProvider.getWrappedDomainKEK(password));
 245                 LogInfo("DKEK migrated");
 246         }
 247 }
 248
 249 void CKMLogic::saveDKEKFile(uid_t user, const Password &password)
 250 {
 251         auto &handle = m_userDataMap[user];
 252
 253         FileSystem fs(user);
 254         fs.saveDKEK(handle.keyProvider.getWrappedDomainKEK(password));
 255 }
 256
 257 void CKMLogic::migrateSecureStorageData(bool isAdminUser)
 258 {
 259         SsMigration::migrate(isAdminUser, [this](const std::string &name,
 260                                                                                          const Crypto::Data &data,
 261                                                                                          bool adminUserFlag) {
 262                 LogInfo("Migrate data called with  name: " << name);
 263                 auto ownerId = adminUserFlag ? CLIENT_ID_ADMIN_USER : CLIENT_ID_SYSTEM;
 264                 auto uid = adminUserFlag ? ADMIN_USER_DB_UID : SYSTEM_DB_UID;
 265
 266                 int ret = verifyAndSaveDataHelper(Credentials(uid, ownerId), name, ownerId, data,
 267                                                                                   PolicySerializable());
 268
 269                 if (ret == CKM_API_ERROR_DB_ALIAS_EXISTS)
 270                         LogWarning("Alias already exist for migrated name: " << name);
 271                 else if (ret != CKM_API_SUCCESS)
 272                         LogError("Failed to migrate secure-storage data. name: " << name <<
 273                                          " ret: " << ret);
 274         });
 275 }
 276
 277 int CKMLogic::unlockDatabase(uid_t user, const Password &password)
 278 {
 279         if (0 < m_userDataMap.count(user) &&
 280                         m_userDataMap[user].keyProvider.isInitialized())
 281                 return CKM_API_SUCCESS;
 282
 283         int retCode = tryRet([&] {
 284                 auto &handle = m_userDataMap[user];
 285
 286                 FileSystem fs(user);
 287                 loadDKEKFile(user, password);
 288
 289                 auto wrappedDatabaseDEK = fs.getDBDEK();
 290
 291                 if (wrappedDatabaseDEK.empty()) {
 292                         wrappedDatabaseDEK = handle.keyProvider.generateDEK(std::to_string(user));
 293                         fs.saveDBDEK(wrappedDatabaseDEK);
 294                 }
 295
 296                 RawBuffer key = handle.keyProvider.getPureDEK(wrappedDatabaseDEK);
 297
 298                 handle.database = DB::Crypto(fs.getLegacyDBPath(), fs.getDBPath(), key);
 299                 handle.crypto = CryptoLogic();
 300
 301                 if (!m_accessControl.isSystemService(user)) {
 302                         // remove data of removed apps during locked state
 303                         ClientIdVector removedApps = fs.clearRemovedsApps();
 304
 305                         for (auto &app : removedApps) {
 306                                 handle.crypto.removeKey(app);
 307                                 handle.database.deleteKey(app);
 308                         }
 309                 }
 310
 311                 if (user == SYSTEM_DB_UID && SsMigration::hasData())
 312                         migrateSecureStorageData(false);
 313                 else if (user == ADMIN_USER_DB_UID && SsMigration::hasData())
 314                         migrateSecureStorageData(true);
 315
 316                 return CKM_API_SUCCESS;
 317         });
 318
 319         if (CKM_API_SUCCESS != retCode)
 320                 m_userDataMap.erase(user);
 321
 322         return retCode;
 323 }
 324
 325 int CKMLogic::unlockSystemDB()
 326 {
 327         return unlockDatabase(SYSTEM_DB_UID, DEFAULT_UNLOCK_STRING);
 328 }
 329
 330 UserData &CKMLogic::selectDatabase(const Credentials &cred,
 331                                                                    const ClientId &owner)
 332 {
 333         // if user trying to access system service - check:
 334         //    * if user database is unlocked [mandatory]
 335         //    * if not - proceed with regular user database
 336         //    * if explicit system database owner given -> switch to system DB
 337         if (!m_accessControl.isSystemService(cred)) {
 338                 if (0 == m_userDataMap.count(cred.clientUid))
 339                         ThrowErr(Exc::DatabaseLocked, "database with UID: ", cred.clientUid, " locked");
 340
 341                 if (0 != owner.compare(CLIENT_ID_SYSTEM))
 342                         return m_userDataMap[cred.clientUid];
 343         }
 344
 345         // system database selected, modify the owner id
 346         if (CKM_API_SUCCESS != unlockSystemDB())
 347                 ThrowErr(Exc::DatabaseLocked, "can not unlock system database");
 348
 349         return m_userDataMap[SYSTEM_DB_UID];
 350 }
 351
 352 RawBuffer CKMLogic::unlockUserKey(uid_t user, const Password &password)
 353 {
 354         int retCode = CKM_API_SUCCESS;
 355
 356         if (!m_accessControl.isSystemService(user))
 357                 retCode = unlockDatabase(user, password);
 358         else // do not allow lock/unlock operations for system users
 359                 retCode = CKM_API_ERROR_INPUT_PARAM;
 360
 361         return SerializeMessage(retCode);
 362 }
 363
 364 RawBuffer CKMLogic::updateCCMode()
 365 {
 366         m_accessControl.updateCCMode();
 367         return SerializeMessage(CKM_API_SUCCESS);
 368 }
 369
 370 RawBuffer CKMLogic::lockUserKey(uid_t user)
 371 {
 372         int retCode = CKM_API_SUCCESS;
 373
 374         if (!m_accessControl.isSystemService(user))
 375                 m_userDataMap.erase(user);
 376         else // do not allow lock/unlock operations for system users
 377                 retCode = CKM_API_ERROR_INPUT_PARAM;
 378
 379         return SerializeMessage(retCode);
 380 }
 381
 382 RawBuffer CKMLogic::removeUserData(uid_t user)
 383 {
 384         if (m_accessControl.isSystemService(user))
 385                 user = SYSTEM_DB_UID;
 386
 387         m_userDataMap.erase(user);
 388
 389         const int retCode = FileSystem(user).removeUserData()
 390                 ? CKM_API_ERROR_FILE_SYSTEM
 391                 : CKM_API_SUCCESS;
 392
 393         return SerializeMessage(retCode);
 394 }
 395
 396 int CKMLogic::changeUserPasswordHelper(uid_t user,
 397                                                                            const Password &oldPassword,
 398                                                                            const Password &newPassword)
 399 {
 400         // do not allow to change system database password
 401         if (m_accessControl.isSystemService(user))
 402                 return CKM_API_ERROR_INPUT_PARAM;
 403
 404         loadDKEKFile(user, oldPassword);
 405         saveDKEKFile(user, newPassword);
 406
 407         return CKM_API_SUCCESS;
 408 }
 409
 410 RawBuffer CKMLogic::changeUserPassword(
 411         uid_t user,
 412         const Password &oldPassword,
 413         const Password &newPassword)
 414 {
 415         return SerializeMessage(tryRet([&] {
 416                 return changeUserPasswordHelper(user, oldPassword, newPassword);
 417         }));
 418 }
 419
 420 int CKMLogic::resetUserPasswordHelper(
 421         uid_t user,
 422         const Password &newPassword)
 423 {
 424         // do not allow to reset system database password
 425         if (m_accessControl.isSystemService(user))
 426                 return CKM_API_ERROR_INPUT_PARAM;
 427
 428         int retCode = CKM_API_SUCCESS;
 429
 430         if (0 == m_userDataMap.count(user)) {
 431                 // Check if key exists. If exists we must return error
 432                 FileSystem fs(user);
 433                 auto wrappedDKEKMain = fs.getDKEK();
 434
 435                 if (!wrappedDKEKMain.empty())
 436                         retCode = CKM_API_ERROR_BAD_REQUEST;
 437         } else {
 438                 saveDKEKFile(user, newPassword);
 439         }
 440
 441         return retCode;
 442 }
 443
 444 RawBuffer CKMLogic::resetUserPassword(
 445         uid_t user,
 446         const Password &newPassword)
 447 {
 448         return SerializeMessage(tryRet([&] {
 449                 return resetUserPasswordHelper(user, newPassword);
 450         }));
 451 }
 452
 453 RawBuffer CKMLogic::removeApplicationData(const ClientId &owner)
 454 {
 455         return SerializeMessage(tryRet([&] {
 456                 if (owner.empty())
 457                         return CKM_API_ERROR_INPUT_PARAM;
 458
 459                 UidVector uids = FileSystem::getUIDsFromDBFile();
 460
 461                 for (auto userId : uids) {
 462                         if (0 == m_userDataMap.count(userId)) {
 463                                 FileSystem fs(userId);
 464                                 fs.addRemovedApp(owner);
 465                         } else {
 466                                 auto &handle = m_userDataMap[userId];
 467                                 handle.crypto.removeKey(owner);
 468                                 handle.database.deleteKey(owner);
 469                         }
 470                 }
 471
 472                 return CKM_API_SUCCESS;
 473         }));
 474 }
 475
 476 int CKMLogic::checkSaveConditions(
 477         const Credentials &accessorCred,
 478         UserData &handler,
 479         const Name &name,
 480         const ClientId &owner)
 481 {
 482         // verify name and client are correct
 483         if (!isNameValid(name) || !isClientValid(owner)) {
 484                 LogDebug("Invalid parameter passed to key-manager");
 485                 return CKM_API_ERROR_INPUT_PARAM;
 486         }
 487
 488         // check if accessor is allowed to save owner's items
 489         int access_ec = m_accessControl.canSave(accessorCred, owner);
 490
 491         if (access_ec != CKM_API_SUCCESS) {
 492                 LogDebug("accessor " << accessorCred.client << " can not save rows owned by " <<
 493                                  owner);
 494                 return access_ec;
 495         }
 496
 497         // check if not a duplicate
 498         if (handler.database.isNameOwnerPresent(name, owner))
 499                 return CKM_API_ERROR_DB_ALIAS_EXISTS;
 500
 501         // encryption section
 502         if (!handler.crypto.haveKey(owner)) {
 503                 RawBuffer got_key;
 504                 auto key_optional = handler.database.getKey(owner);
 505
 506                 if (!key_optional) {
 507                         LogDebug("No Key in database found. Generating new one for client: " <<
 508                                          owner);
 509                         got_key = handler.keyProvider.generateDEK(owner);
 510                         handler.database.saveKey(owner, got_key);
 511                 } else {
 512                         LogDebug("Key from DB");
 513                         got_key = *key_optional;
 514                 }
 515
 516                 got_key = handler.keyProvider.getPureDEK(got_key);
 517                 handler.crypto.pushKey(owner, got_key);
 518         }
 519
 520         return CKM_API_SUCCESS;
 521 }
 522
 523 DB::Row CKMLogic::createEncryptedRow(
 524         CryptoLogic &crypto,
 525         const Name &name,
 526         const ClientId &owner,
 527         const Crypto::Data &data,
 528         const Policy &policy,
 529         const RawBuffer &hash)
 530 {
 531         Crypto::GStore &store = m_decider.getStore(data.type, policy);
 532
 533         // do not encrypt data with password during cc_mode on
 534         Token token = store.import(data,
 535                                                            m_accessControl.isCCMode() ? "" : policy.password,
 536                                                            Crypto::EncryptionParams(), hash);
 537         DB::Row row(std::move(token), name, owner,
 538                                 static_cast<int>(policy.extractable));
 539         crypto.encryptRow(row);
 540         return row;
 541 }
 542
 543 int CKMLogic::verifyAndSaveDataHelper(
 544         const Credentials &cred,
 545         const Name &name,
 546         const ClientId &owner,
 547         const Crypto::Data &data,
 548         const PolicySerializable &policy)
 549 {
 550         return tryRet([&] {
 551                 // check if data is correct
 552                 Crypto::Data binaryData;
 553                 int retCode = toBinaryData(data, binaryData);
 554
 555                 return retCode != CKM_API_SUCCESS
 556                         ? retCode
 557                         : saveDataHelper(cred, name, owner, binaryData, policy);
 558         });
 559 }
 560
 561 int CKMLogic::getKeyForService(
 562         const Credentials &cred,
 563         const Name &name,
 564         const ClientId &owner,
 565         const Password &pass,
 566         Crypto::GObjShPtr &key)
 567 {
 568         return tryRet([&] {
 569                 // Key is for internal service use. It won't be exported to the client
 570                 Crypto::GObjUPtr obj;
 571                 int retCode = readDataHelper(false, cred, DataType::DB_KEY_FIRST, name, owner,
 572                                                                          pass, obj);
 573
 574                 if (retCode == CKM_API_SUCCESS)
 575                         key = std::move(obj);
 576
 577                 return retCode;
 578         });
 579 }
 580
 581 RawBuffer CKMLogic::saveData(
 582         const Credentials &cred,
 583         int msgId,
 584         const Name &name,
 585         const ClientId &owner,
 586         const Crypto::Data &data,
 587         const PolicySerializable &policy)
 588 {
 589         int retCode = verifyAndSaveDataHelper(cred, name, owner, data, policy);
 590         return SerializeMessage(msgId, retCode, data.type);
 591 }
 592
 593 int CKMLogic::extractPKCS12Data(
 594         CryptoLogic &crypto,
 595         const Name &name,
 596         const ClientId &owner,
 597         const PKCS12Serializable &pkcs,
 598         const PolicySerializable &keyPolicy,
 599         const PolicySerializable &certPolicy,
 600         DB::RowVector &output,
 601         const Credentials &cred)
 602 {
 603         // private key is mandatory
 604         auto key = pkcs.getKey();
 605
 606         if (!key) {
 607                 LogError("Failed to get private key from pkcs");
 608                 return CKM_API_ERROR_INVALID_FORMAT;
 609         }
 610
 611         auto digest = CryptoLogic::makeHash(name, owner, cred.clientUid);
 612         if (digest.empty())
 613                 return CKM_API_ERROR_HASH_ERROR;
 614
 615         Crypto::Data keyData(DataType(key->getType()), key->getDER());
 616         int retCode = verifyBinaryData(keyData);
 617
 618         if (retCode != CKM_API_SUCCESS)
 619                 return retCode;
 620
 621         output.push_back(createEncryptedRow(crypto, name, owner, keyData,
 622                                                                                 keyPolicy, digest));
 623
 624         // certificate is mandatory
 625         auto cert = pkcs.getCertificate();
 626
 627         if (!cert) {
 628                 LogError("Failed to get certificate from pkcs");
 629                 return CKM_API_ERROR_INVALID_FORMAT;
 630         }
 631
 632         Crypto::Data certData(DataType::CERTIFICATE, cert->getDER());
 633         retCode = verifyBinaryData(certData);
 634
 635         if (retCode != CKM_API_SUCCESS)
 636                 return retCode;
 637
 638         output.push_back(createEncryptedRow(crypto, name, owner, certData,
 639                                                                                 certPolicy, digest));
 640
 641         // CA cert chain
 642         unsigned int cert_index = 0;
 643
 644         for (const auto &ca : pkcs.getCaCertificateShPtrVector()) {
 645                 Crypto::Data caCertData(DataType::getChainDatatype(cert_index ++),
 646                                                                 ca->getDER());
 647                 int retCode = verifyBinaryData(caCertData);
 648
 649                 if (retCode != CKM_API_SUCCESS)
 650                         return retCode;
 651
 652                 output.push_back(createEncryptedRow(crypto, name, owner, caCertData,
 653                                                                                         certPolicy, digest));
 654         }
 655
 656         return CKM_API_SUCCESS;
 657 }
 658
 659 RawBuffer CKMLogic::savePKCS12(
 660         const Credentials &cred,
 661         int msgId,
 662         const Name &name,
 663         const ClientId &owner,
 664         const PKCS12Serializable &pkcs,
 665         const PolicySerializable &keyPolicy,
 666         const PolicySerializable &certPolicy)
 667 {
 668         return SerializeMessage(msgId, tryRet([&] {
 669                 return saveDataHelper(cred, name, owner, pkcs, keyPolicy, certPolicy);
 670         }));
 671 }
 672
 673
 674 int CKMLogic::removeDataHelper(
 675         const Credentials &cred,
 676         const Name &name,
 677         const ClientId &owner)
 678 {
 679         auto &handler = selectDatabase(cred, owner);
 680
 681         if (!isNameValid(name) || !isClientValid(owner)) {
 682                 LogDebug("Invalid owner or name format");
 683                 return CKM_API_ERROR_INPUT_PARAM;
 684         }
 685
 686         DB::Crypto::Transaction transaction(&handler.database);
 687
 688         // read and check permissions
 689         PermissionMaskOptional permissionRowOpt =
 690                 handler.database.getPermissionRow(name, owner, cred.client);
 691         int retCode = m_accessControl.canDelete(cred,
 692                                                                                         toPermissionMask(permissionRowOpt));
 693
 694         if (retCode != CKM_API_SUCCESS) {
 695                 LogWarning("access control check result: " << retCode);
 696                 return retCode;
 697         }
 698
 699         // get all matching rows
 700         DB::RowVector rows;
 701         handler.database.getRows(name, owner, DataType::DB_FIRST,
 702                                                          DataType::DB_LAST, rows);
 703
 704         if (rows.empty()) {
 705                 LogDebug("No row for given name and owner");
 706                 return CKM_API_ERROR_DB_ALIAS_UNKNOWN;
 707         }
 708
 709         // load app key if needed
 710         retCode = loadAppKey(handler, rows.front().owner);
 711
 712         if (CKM_API_SUCCESS != retCode)
 713                 return retCode;
 714
 715         // destroy it in store
 716         for (auto &r : rows) {
 717                 try {
 718                         handler.crypto.decryptRow(Password(), r);
 719                         m_decider.getStore(r).destroy(r);
 720                 } catch (const Exc::AuthenticationFailed &) {
 721                         LogDebug("Authentication failed when removing data. Ignored.");
 722                 }
 723         }
 724
 725         // delete row in db
 726         handler.database.deleteRow(name, owner);
 727         transaction.commit();
 728
 729         return CKM_API_SUCCESS;
 730 }
 731
 732 RawBuffer CKMLogic::removeData(
 733         const Credentials &cred,
 734         int msgId,
 735         const Name &name,
 736         const ClientId &owner)
 737 {
 738         return SerializeMessage(msgId, tryRet([&] {
 739                 return removeDataHelper(cred, name, owner);
 740         }));
 741 }
 742
 743
 744 int CKMLogic::checkDataPermissionsHelper(const Credentials &accessorCred,
 745                 const Name &name,
 746                 const ClientId &owner,
 747                 const DB::Row &row,
 748                 bool exportFlag,
 749                 DB::Crypto &database)
 750 {
 751         PermissionMaskOptional permissionRowOpt =
 752                 database.getPermissionRow(name, owner, accessorCred.client);
 753
 754         if (exportFlag)
 755                 return m_accessControl.canExport(accessorCred,
 756                                                                                  row,
 757                                                                                  toPermissionMask(permissionRowOpt));
 758
 759         return m_accessControl.canRead(accessorCred,
 760                                                                    toPermissionMask(permissionRowOpt));
 761 }
 762
 763 Crypto::GObjUPtr CKMLogic::rowToObject(
 764         UserData &handler,
 765         DB::Row row,
 766         const Password &password,
 767         const RawBuffer &hash)
 768 {
 769         Crypto::GStore &store = m_decider.getStore(row);
 770
 771         Password pass = m_accessControl.isCCMode() ? "" : password;
 772
 773         // decrypt row
 774         Crypto::GObjUPtr obj;
 775
 776         if (CryptoLogic::getSchemeVersion(row.encryptionScheme) ==
 777                         CryptoLogic::ENCRYPTION_V2) {
 778                 handler.crypto.decryptRow(Password(), row);
 779
 780                 obj = store.getObject(row, pass);
 781         } else {
 782                 // decrypt entirely with old scheme: b64(pass(appkey(data))) -> data
 783                 handler.crypto.decryptRow(pass, row);
 784                 // destroy it in store
 785                 store.destroy(row);
 786
 787                 // import it to store with new scheme: data -> pass(data)
 788                 Token token = store.import(Crypto::Data(row.dataType, row.data), pass, Crypto::EncryptionParams(), hash);
 789
 790                 // get it from the store (it can be different than the data we imported into store)
 791                 obj = store.getObject(token, pass);
 792
 793                 // update row with new token
 794                 *static_cast<Token *>(&row) = std::move(token);
 795
 796                 // encrypt it with app key: pass(data) -> b64(appkey(pass(data))
 797                 handler.crypto.encryptRow(row);
 798
 799                 // update it in db
 800                 handler.database.updateRow(row);
 801         }
 802
 803         return obj;
 804 }
 805
 806 int CKMLogic::readDataHelper(
 807         bool exportFlag,
 808         const Credentials &cred,
 809         DataType dataType,
 810         const Name &name,
 811         const ClientId &owner,
 812         const Password &password,
 813         Crypto::GObjUPtrVector &objs)
 814 {
 815         auto &handler = selectDatabase(cred, owner);
 816
 817         if (!isNameValid(name) || !isClientValid(owner))
 818                 return CKM_API_ERROR_INPUT_PARAM;
 819
 820         // read rows
 821         DB::Crypto::Transaction transaction(&handler.database);
 822         DB::RowVector rows;
 823         int retCode = readMultiRow(name, owner, dataType, handler.database, rows);
 824
 825         if (CKM_API_SUCCESS != retCode)
 826                 return retCode;
 827
 828         // all read rows belong to the same owner
 829         DB::Row &firstRow = rows.at(0);
 830
 831         // check access rights
 832         retCode = checkDataPermissionsHelper(cred, name, owner, firstRow,
 833                                                                                  exportFlag, handler.database);
 834
 835         if (CKM_API_SUCCESS != retCode)
 836                 return retCode;
 837
 838         // load app key if needed
 839         retCode = loadAppKey(handler, firstRow.owner);
 840
 841         if (CKM_API_SUCCESS != retCode)
 842                 return retCode;
 843
 844         auto digest = CryptoLogic::makeHash(name, owner, cred.clientUid);
 845         if (digest.empty())
 846                 return CKM_API_ERROR_HASH_ERROR;
 847
 848         // decrypt row
 849         for (auto &row : rows)
 850                 objs.push_back(rowToObject(handler, std::move(row), password, digest));
 851
 852         // rowToObject may modify db
 853         transaction.commit();
 854
 855         return CKM_API_SUCCESS;
 856 }
 857
 858 int CKMLogic::readDataHelper(
 859         bool exportFlag,
 860         const Credentials &cred,
 861         DataType dataType,
 862         const Name &name,
 863         const ClientId &owner,
 864         const Password &password,
 865         Crypto::GObjUPtr &obj)
 866 {
 867         DataType objDataType;
 868         return readDataHelper(exportFlag, cred, dataType, name, owner,
 869                                                   password, obj, objDataType);
 870 }
 871
 872 int CKMLogic::readDataHelper(
 873         bool exportFlag,
 874         const Credentials &cred,
 875         DataType dataType,
 876         const Name &name,
 877         const ClientId &owner,
 878         const Password &password,
 879         Crypto::GObjUPtr &obj,
 880         DataType &objDataType)
 881 {
 882         auto &handler = selectDatabase(cred, owner);
 883
 884         if (!isNameValid(name) || !isClientValid(owner))
 885                 return CKM_API_ERROR_INPUT_PARAM;
 886
 887         // read row
 888         DB::Crypto::Transaction transaction(&handler.database);
 889         DB::Row row;
 890         int retCode = readSingleRow(name, owner, dataType, handler.database, row);
 891
 892         if (CKM_API_SUCCESS != retCode)
 893                 return retCode;
 894
 895         objDataType = row.dataType;
 896
 897         // check access rights
 898         retCode = checkDataPermissionsHelper(cred, name, owner, row, exportFlag,
 899                                                                                  handler.database);
 900
 901         if (CKM_API_SUCCESS != retCode)
 902                 return retCode;
 903
 904         // load app key if needed
 905         retCode = loadAppKey(handler, row.owner);
 906
 907         if (CKM_API_SUCCESS != retCode)
 908                 return retCode;
 909
 910         auto digest = CryptoLogic::makeHash(name, owner, cred.clientUid);
 911         if (digest.empty())
 912                 return CKM_API_ERROR_HASH_ERROR;
 913
 914         obj = rowToObject(handler, std::move(row), password, digest);
 915         // rowToObject may modify db
 916         transaction.commit();
 917
 918         return CKM_API_SUCCESS;
 919 }
 920
 921 RawBuffer CKMLogic::getData(
 922         const Credentials &cred,
 923         int msgId,
 924         DataType dataType,
 925         const Name &name,
 926         const ClientId &owner,
 927         const Password &password)
 928 {
 929         RawBuffer rowData;
 930         DataType objDataType;
 931
 932         int retCode = tryRet([&] {
 933                 Crypto::GObjUPtr obj;
 934                 int retCode = readDataHelper(true, cred, dataType, name, owner,
 935                                                                  password, obj, objDataType);
 936
 937                 if (retCode == CKM_API_SUCCESS)
 938                         rowData = obj->getBinary();
 939
 940                 return retCode;
 941         });
 942
 943         if (CKM_API_SUCCESS != retCode)
 944                 rowData.clear();
 945
 946         return SerializeMessage(msgId, retCode, objDataType, rowData);
 947 }
 948
 949 RawBuffer CKMLogic::getDataProtectionStatus(
 950                 const Credentials &cred,
 951                 int msgId,
 952                 DataType dataType,
 953                 const Name &name,
 954                 const ClientId &owner)
 955 {
 956         bool status = false;
 957         DataType objDataType;
 958         Password password;
 959
 960         int retCode = tryRet([&] {
 961                 Crypto::GObjUPtr obj;
 962                 return readDataHelper(false, cred, dataType, name, owner, password, obj, objDataType);
 963         });
 964
 965         if (retCode == CKM_API_ERROR_AUTHENTICATION_FAILED) {
 966                 status = true;
 967                 retCode = CKM_API_SUCCESS;
 968         }
 969
 970         return SerializeMessage(msgId, retCode, objDataType, status);
 971 }
 972
 973 int CKMLogic::getPKCS12Helper(
 974         const Credentials &cred,
 975         const Name &name,
 976         const ClientId &owner,
 977         const Password &keyPassword,
 978         const Password &certPassword,
 979         KeyShPtr &privKey,
 980         CertificateShPtr &cert,
 981         CertificateShPtrVector &caChain)
 982 {
 983         int retCode;
 984
 985         // read private key (mandatory)
 986         Crypto::GObjUPtr keyObj;
 987         retCode = readDataHelper(true, cred, DataType::DB_KEY_FIRST, name, owner,
 988                                                          keyPassword, keyObj);
 989
 990         if (retCode != CKM_API_SUCCESS) {
 991                 if (retCode != CKM_API_ERROR_NOT_EXPORTABLE)
 992                         return retCode;
 993         } else {
 994                 privKey = CKM::Key::create(keyObj->getBinary());
 995         }
 996
 997         // read certificate (mandatory)
 998         Crypto::GObjUPtr certObj;
 999         retCode = readDataHelper(true, cred, DataType::CERTIFICATE, name, owner,
1000                                                          certPassword, certObj);
1001
1002         if (retCode != CKM_API_SUCCESS) {
1003                 if (retCode != CKM_API_ERROR_NOT_EXPORTABLE)
1004                         return retCode;
1005         } else {
1006                 cert = CKM::Certificate::create(certObj->getBinary(), DataFormat::FORM_DER);
1007         }
1008
1009         // read CA cert chain (optional)
1010         Crypto::GObjUPtrVector caChainObjs;
1011         retCode = readDataHelper(true, cred, DataType::DB_CHAIN_FIRST, name, owner,
1012                                                          certPassword, caChainObjs);
1013
1014         if (retCode != CKM_API_SUCCESS && retCode != CKM_API_ERROR_DB_ALIAS_UNKNOWN) {
1015                 if (retCode != CKM_API_ERROR_NOT_EXPORTABLE)
1016                         return retCode;
1017         } else {
1018                 for (auto &caCertObj : caChainObjs)
1019                         caChain.push_back(CKM::Certificate::create(caCertObj->getBinary(),
1020                                                                                                            DataFormat::FORM_DER));
1021         }
1022
1023         // if anything found, return it
1024         if (privKey || cert || caChain.size() > 0)
1025                 retCode = CKM_API_SUCCESS;
1026
1027         return retCode;
1028 }
1029
1030 RawBuffer CKMLogic::getPKCS12(
1031         const Credentials &cred,
1032         int msgId,
1033         const Name &name,
1034         const ClientId &owner,
1035         const Password &keyPassword,
1036         const Password &certPassword)
1037 {
1038         PKCS12Serializable output;
1039
1040         int retCode = tryRet([&] {
1041                 KeyShPtr privKey;
1042                 CertificateShPtr cert;
1043                 CertificateShPtrVector caChain;
1044                 int retCode = getPKCS12Helper(cred, name, owner, keyPassword,
1045                                                                   certPassword, privKey, cert, caChain);
1046
1047                 // prepare response
1048                 if (retCode == CKM_API_SUCCESS)
1049                         output = PKCS12Serializable(std::move(privKey), std::move(cert), std::move(caChain));
1050
1051                 return retCode;
1052         });
1053
1054         return SerializeMessage(msgId, retCode, output);
1055 }
1056
1057 int CKMLogic::getDataListHelper(const Credentials &cred,
1058                                                                 const DataType dataType,
1059                                                                 OwnerNameVector &ownerNameVector)
1060 {
1061         int retCode = CKM_API_ERROR_DB_LOCKED;
1062
1063         if (0 < m_userDataMap.count(cred.clientUid)) {
1064                 auto &database = m_userDataMap[cred.clientUid].database;
1065
1066                 retCode = tryRet<CKM_API_ERROR_DB_ERROR>([&] {
1067                         OwnerNameVector tmpVector;
1068
1069                         if (dataType.isKey()) {
1070                                 // list all key types
1071                                 database.listNames(cred.client,
1072                                                                    tmpVector,
1073                                                                    DataType::DB_KEY_FIRST,
1074                                                                    DataType::DB_KEY_LAST);
1075                         } else {
1076                                 // list anything else
1077                                 database.listNames(cred.client,
1078                                                                    tmpVector,
1079                                                                    dataType);
1080                         }
1081
1082                         ownerNameVector.insert(ownerNameVector.end(), tmpVector.begin(),
1083                                                                    tmpVector.end());
1084                         return CKM_API_SUCCESS;
1085                 });
1086         }
1087
1088         return retCode;
1089 }
1090
1091 RawBuffer CKMLogic::getDataList(
1092         const Credentials &cred,
1093         int msgId,
1094         DataType dataType)
1095 {
1096         OwnerNameVector systemVector;
1097         OwnerNameVector userVector;
1098         OwnerNameVector ownerNameVector;
1099
1100         int retCode = unlockSystemDB();
1101
1102         if (CKM_API_SUCCESS == retCode) {
1103                 // system database
1104                 if (m_accessControl.isSystemService(cred)) {
1105                         // lookup system DB
1106                         retCode = getDataListHelper(Credentials(SYSTEM_DB_UID,
1107                                                                                                         CLIENT_ID_SYSTEM),
1108                                                                                 dataType,
1109                                                                                 systemVector);
1110                 } else {
1111                         // user - lookup system, then client DB
1112                         retCode = getDataListHelper(Credentials(SYSTEM_DB_UID,
1113                                                                                                         cred.client),
1114                                                                                 dataType,
1115                                                                                 systemVector);
1116
1117                         // private database
1118                         if (retCode == CKM_API_SUCCESS) {
1119                                 retCode = getDataListHelper(cred,
1120                                                                                         dataType,
1121                                                                                         userVector);
1122                         }
1123                 }
1124         }
1125
1126         if (retCode == CKM_API_SUCCESS) {
1127                 ownerNameVector.insert(ownerNameVector.end(), systemVector.begin(),
1128                                                            systemVector.end());
1129                 ownerNameVector.insert(ownerNameVector.end(), userVector.begin(),
1130                                                            userVector.end());
1131         }
1132
1133         return SerializeMessage(msgId, retCode, dataType, ownerNameVector);
1134 }
1135
1136 int CKMLogic::importInitialData(
1137         const Name &name,
1138         const Crypto::Data &data,
1139         const Crypto::EncryptionParams &encParams,
1140         const Policy &policy)
1141 {
1142         try {
1143                 return tryRet([&] {
1144                         if (encParams.iv.empty() != encParams.tag.empty()) {
1145                                 LogError("Both iv and tag must be empty or set");
1146                                 return CKM_API_ERROR_INPUT_PARAM;
1147                         }
1148
1149                         // Inital values are always imported with root credentials. Client id is not important.
1150                         Credentials rootCred(0, "");
1151                         ClientId owner(CLIENT_ID_SYSTEM);
1152                         auto &handler = selectDatabase(rootCred, CLIENT_ID_SYSTEM);
1153
1154                         // check if save is possible
1155                         DB::Crypto::Transaction transaction(&handler.database);
1156                         int retCode = checkSaveConditions(rootCred, handler, name, CLIENT_ID_SYSTEM);
1157                         if (retCode != CKM_API_SUCCESS)
1158                                 return retCode;
1159
1160                         Crypto::GStore &store = m_decider.getStore(data.type,
1161                                                                                                            policy,
1162                                                                                                            !encParams.iv.empty());
1163
1164                         Token token;
1165
1166                         auto digest = CryptoLogic::makeHash(name, owner, rootCred.clientUid);
1167                         if (digest.empty())
1168                                 return CKM_API_ERROR_HASH_ERROR;
1169
1170                         if (encParams.iv.empty()) {
1171                                 // Data are not encrypted, let's try to verify them
1172                                 Crypto::Data binaryData;
1173
1174                                 if (CKM_API_SUCCESS != (retCode = toBinaryData(data, binaryData)))
1175                                         return retCode;
1176
1177                                 token = store.import(binaryData,
1178                                                                          m_accessControl.isCCMode() ? "" : policy.password,
1179                                                                          encParams, digest);
1180                         } else {
1181                                 token = store.import(data,
1182                                                                          m_accessControl.isCCMode() ? "" : policy.password,
1183                                                                          encParams, digest);
1184                         }
1185
1186                         DB::Row row(std::move(token), name, CLIENT_ID_SYSTEM,
1187                                                 static_cast<int>(policy.extractable));
1188                         handler.crypto.encryptRow(row);
1189
1190                         handler.database.saveRow(row);
1191                         transaction.commit();
1192
1193                         return CKM_API_SUCCESS;
1194                 });
1195         } catch (const std::exception &e) {
1196                 LogError("Std::exception: " << e.what());
1197                 return CKM_API_ERROR_SERVER_ERROR;
1198         }
1199 }
1200
1201 int CKMLogic::saveDataHelper(
1202         const Credentials &cred,
1203         const Name &name,
1204         const ClientId &owner,
1205         const Crypto::Data &data,
1206         const PolicySerializable &policy)
1207 {
1208         auto &handler = selectDatabase(cred, owner);
1209
1210         // check if save is possible
1211         DB::Crypto::Transaction transaction(&handler.database);
1212         int retCode = checkSaveConditions(cred, handler, name, owner);
1213         if (retCode != CKM_API_SUCCESS)
1214                 return retCode;
1215
1216         auto digest = CryptoLogic::makeHash(name, owner, cred.clientUid);
1217         if (digest.empty())
1218                 return CKM_API_ERROR_HASH_ERROR;
1219
1220         // save the data
1221         DB::Row encryptedRow = createEncryptedRow(handler.crypto, name, owner,
1222                                                    data, policy, digest);
1223         handler.database.saveRow(encryptedRow);
1224
1225         transaction.commit();
1226         return CKM_API_SUCCESS;
1227 }
1228
1229 int CKMLogic::saveDataHelper(
1230         const Credentials &cred,
1231         const Name &name,
1232         const ClientId &owner,
1233         const PKCS12Serializable &pkcs,
1234         const PolicySerializable &keyPolicy,
1235         const PolicySerializable &certPolicy)
1236 {
1237         auto &handler = selectDatabase(cred, owner);
1238
1239         // check if save is possible
1240         DB::Crypto::Transaction transaction(&handler.database);
1241         int retCode = checkSaveConditions(cred, handler, name, owner);
1242         if (retCode != CKM_API_SUCCESS)
1243                 return retCode;
1244
1245         // extract and encrypt the data
1246         DB::RowVector encryptedRows;
1247         retCode = extractPKCS12Data(handler.crypto, name, owner, pkcs, keyPolicy,
1248                                                                 certPolicy, encryptedRows, cred);
1249
1250         if (retCode != CKM_API_SUCCESS)
1251                 return retCode;
1252
1253         // save the data
1254         handler.database.saveRows(name, owner, encryptedRows);
1255         transaction.commit();
1256
1257         return CKM_API_SUCCESS;
1258 }
1259
1260
1261 int CKMLogic::createKeyAESHelper(
1262         const Credentials &cred,
1263         const int size,
1264         const Name &name,
1265         const ClientId &owner,
1266         const PolicySerializable &policy)
1267 {
1268         auto &handler = selectDatabase(cred, owner);
1269
1270         // check if save is possible
1271         DB::Crypto::Transaction transaction(&handler.database);
1272         int retCode = checkSaveConditions(cred, handler, name, owner);
1273         if (retCode != CKM_API_SUCCESS)
1274                 return retCode;
1275
1276         auto digest = CryptoLogic::makeHash(name, owner, cred.clientUid);
1277         if (digest.empty())
1278                 return CKM_API_ERROR_HASH_ERROR;
1279
1280         // create key in store
1281         CryptoAlgorithm keyGenAlgorithm;
1282         keyGenAlgorithm.setParam(ParamName::ALGO_TYPE, AlgoType::AES_GEN);
1283         keyGenAlgorithm.setParam(ParamName::GEN_KEY_LEN, size);
1284         Token key = m_decider.getStore(DataType::KEY_AES,
1285                                        policy).generateSKey(keyGenAlgorithm, policy.password, digest);
1286
1287         // save the data
1288         DB::Row row(std::move(key), name, owner,
1289                                 static_cast<int>(policy.extractable));
1290         handler.crypto.encryptRow(row);
1291
1292         handler.database.saveRow(row);
1293
1294         transaction.commit();
1295         return CKM_API_SUCCESS;
1296 }
1297
1298 int CKMLogic::createKeyPairHelper(
1299         const Credentials &cred,
1300         const CryptoAlgorithmSerializable &keyGenParams,
1301         const Name &namePrivate,
1302         const ClientId &ownerPrivate,
1303         const Name &namePublic,
1304         const ClientId &ownerPublic,
1305         const PolicySerializable &policyPrivate,
1306         const PolicySerializable &policyPublic)
1307 {
1308         auto &handlerPriv = selectDatabase(cred, ownerPrivate);
1309         auto &handlerPub = selectDatabase(cred, ownerPublic);
1310
1311         AlgoType keyType = AlgoType::RSA_GEN;
1312
1313         if (!keyGenParams.getParam(ParamName::ALGO_TYPE, keyType))
1314                 ThrowErr(Exc::InputParam, "Error, parameter ALGO_TYPE not found.");
1315
1316         const auto dtIt = ALGO_TYPE_TO_DATA_TYPE_PAIR_MAP.find(keyType);
1317         if (dtIt == ALGO_TYPE_TO_DATA_TYPE_PAIR_MAP.end())
1318                 ThrowErr(Exc::InputParam, "Error, parameter ALGO_TYPE with wrong value.");
1319         const DataTypePair& dt = dtIt->second;
1320
1321         if (policyPrivate.backend != policyPublic.backend)
1322                 ThrowErr(Exc::InputParam, "Error, key pair must be supported with the same backend.");
1323
1324         bool exportable = policyPrivate.extractable || policyPublic.extractable;
1325         Policy lessRestricted(Password(), exportable, policyPrivate.backend);
1326
1327         auto digestPriv = CryptoLogic::makeHash(namePrivate, ownerPrivate, cred.clientUid);
1328         if (digestPriv.empty())
1329                 return CKM_API_ERROR_HASH_ERROR;
1330
1331         auto digestPub = CryptoLogic::makeHash(namePublic, ownerPublic, cred.clientUid);
1332         if (digestPub.empty())
1333                 return CKM_API_ERROR_HASH_ERROR;
1334
1335         TokenPair keys = m_decider.getStore(policyPrivate, dt.first, dt.second).generateAKey(keyGenParams,
1336                                          policyPrivate.password,
1337                                          policyPublic.password,
1338                                          digestPriv, digestPub);
1339
1340         DB::Crypto::Transaction transactionPriv(&handlerPriv.database);
1341         // in case the same database is used for private and public - the second
1342         // transaction will not be executed
1343         DB::Crypto::Transaction transactionPub(&handlerPub.database);
1344
1345         int retCode;
1346         retCode = checkSaveConditions(cred, handlerPriv, namePrivate, ownerPrivate);
1347         if (CKM_API_SUCCESS != retCode)
1348                 return retCode;
1349
1350         retCode = checkSaveConditions(cred, handlerPub, namePublic, ownerPublic);
1351         if (CKM_API_SUCCESS != retCode)
1352                 return retCode;
1353
1354         // save the data
1355         DB::Row rowPrv(std::move(keys.first), namePrivate, ownerPrivate,
1356                                    static_cast<int>(policyPrivate.extractable));
1357         handlerPriv.crypto.encryptRow(rowPrv);
1358         handlerPriv.database.saveRow(rowPrv);
1359
1360         DB::Row rowPub(std::move(keys.second), namePublic, ownerPublic,
1361                                    static_cast<int>(policyPublic.extractable));
1362         handlerPub.crypto.encryptRow(rowPub);
1363         handlerPub.database.saveRow(rowPub);
1364
1365         transactionPub.commit();
1366         transactionPriv.commit();
1367         return CKM_API_SUCCESS;
1368 }
1369
1370 RawBuffer CKMLogic::createKeyPair(
1371         const Credentials &cred,
1372         int msgId,
1373         const CryptoAlgorithmSerializable &keyGenParams,
1374         const Name &namePrivate,
1375         const ClientId &ownerPrivate,
1376         const Name &namePublic,
1377         const ClientId &ownerPublic,
1378         const PolicySerializable &policyPrivate,
1379         const PolicySerializable &policyPublic)
1380 {
1381         return SerializeMessage(msgId, tryRet([&] {
1382                 return createKeyPairHelper(cred, keyGenParams, namePrivate, ownerPrivate,
1383                                            namePublic, ownerPublic, policyPrivate, policyPublic);
1384         }));
1385 }
1386
1387 RawBuffer CKMLogic::createKeyAES(
1388         const Credentials &cred,
1389         int msgId,
1390         const int size,
1391         const Name &name,
1392         const ClientId &owner,
1393         const PolicySerializable &policy)
1394 {
1395         int retCode = CKM_API_SUCCESS;
1396
1397         try {
1398                 retCode = tryRet([&] {
1399                         return createKeyAESHelper(cred, size, name, owner, policy);
1400                 });
1401         } catch (std::invalid_argument &e) {
1402                 LogDebug("invalid argument error: " << e.what());
1403                 retCode = CKM_API_ERROR_INPUT_PARAM;
1404         }
1405
1406         return SerializeMessage(msgId, retCode);
1407 }
1408
1409 int CKMLogic::readCertificateHelper(
1410         const Credentials &cred,
1411         const OwnerNameVector &ownerNameVector,
1412         CertificateImplVector &certVector)
1413 {
1414         for (auto &i : ownerNameVector) {
1415                 // certificates can't be protected with custom user password
1416                 Crypto::GObjUPtr obj;
1417                 int ec;
1418                 ec = readDataHelper(true,
1419                                                         cred,
1420                                                         DataType::CERTIFICATE,
1421                                                         i.second,
1422                                                         cred.effectiveOwner(i.first),
1423                                                         Password(),
1424                                                         obj);
1425
1426                 if (ec != CKM_API_SUCCESS)
1427                         return ec;
1428
1429                 certVector.emplace_back(obj->getBinary(), DataFormat::FORM_DER);
1430
1431                 // try to read chain certificates (if present)
1432                 Crypto::GObjUPtrVector caChainObjs;
1433                 ec = readDataHelper(true,
1434                                                         cred,
1435                                                         DataType::DB_CHAIN_FIRST,
1436                                                         i.second,
1437                                                         cred.effectiveOwner(i.first),
1438                                                         CKM::Password(),
1439                                                         caChainObjs);
1440
1441                 if (ec != CKM_API_SUCCESS && ec != CKM_API_ERROR_DB_ALIAS_UNKNOWN)
1442                         return ec;
1443
1444                 for (auto &caCertObj : caChainObjs)
1445                         certVector.emplace_back(caCertObj->getBinary(), DataFormat::FORM_DER);
1446         }
1447
1448         return CKM_API_SUCCESS;
1449 }
1450
1451 int CKMLogic::getCertificateChainHelper(
1452         const CertificateImpl &cert,
1453         const RawBufferVector &untrustedCertificates,
1454         const RawBufferVector &trustedCertificates,
1455         bool useTrustedSystemCertificates,
1456         RawBufferVector &chainRawVector)
1457 {
1458         CertificateImplVector untrustedCertVector;
1459         CertificateImplVector trustedCertVector;
1460         CertificateImplVector chainVector;
1461
1462         if (cert.empty())
1463                 return CKM_API_ERROR_INPUT_PARAM;
1464
1465         for (auto &e : untrustedCertificates) {
1466                 CertificateImpl c(e, DataFormat::FORM_DER);
1467
1468                 if (c.empty())
1469                         return CKM_API_ERROR_INPUT_PARAM;
1470
1471                 untrustedCertVector.push_back(std::move(c));
1472         }
1473
1474         for (auto &e : trustedCertificates) {
1475                 CertificateImpl c(e, DataFormat::FORM_DER);
1476
1477                 if (c.empty())
1478                         return CKM_API_ERROR_INPUT_PARAM;
1479
1480                 trustedCertVector.push_back(std::move(c));
1481         }
1482
1483         CertificateStore store;
1484         int retCode = store.verifyCertificate(cert,
1485                                                                                   untrustedCertVector,
1486                                                                                   trustedCertVector,
1487                                                                                   useTrustedSystemCertificates,
1488                                                                                   m_accessControl.isCCMode(),
1489                                                                                   chainVector);
1490
1491         if (retCode != CKM_API_SUCCESS)
1492                 return retCode;
1493
1494         for (auto &e : chainVector)
1495                 chainRawVector.push_back(e.getDER());
1496
1497         return CKM_API_SUCCESS;
1498 }
1499
1500 int CKMLogic::getCertificateChainHelper(
1501         const Credentials &cred,
1502         const CertificateImpl &cert,
1503         const OwnerNameVector &untrusted,
1504         const OwnerNameVector &trusted,
1505         bool useTrustedSystemCertificates,
1506         RawBufferVector &chainRawVector)
1507 {
1508         CertificateImplVector untrustedCertVector;
1509         CertificateImplVector trustedCertVector;
1510         CertificateImplVector chainVector;
1511
1512         if (cert.empty())
1513                 return CKM_API_ERROR_INPUT_PARAM;
1514
1515         int retCode = readCertificateHelper(cred, untrusted, untrustedCertVector);
1516
1517         if (retCode != CKM_API_SUCCESS)
1518                 return retCode;
1519
1520         retCode = readCertificateHelper(cred, trusted, trustedCertVector);
1521
1522         if (retCode != CKM_API_SUCCESS)
1523                 return retCode;
1524
1525         CertificateStore store;
1526         retCode = store.verifyCertificate(cert,
1527                                                                           untrustedCertVector,
1528                                                                           trustedCertVector,
1529                                                                           useTrustedSystemCertificates,
1530                                                                           m_accessControl.isCCMode(),
1531                                                                           chainVector);
1532
1533         if (retCode != CKM_API_SUCCESS)
1534                 return retCode;
1535
1536         for (auto &i : chainVector)
1537                 chainRawVector.push_back(i.getDER());
1538
1539         return CKM_API_SUCCESS;
1540 }
1541
1542 RawBuffer CKMLogic::getCertificateChain(
1543         const Credentials & /*cred*/,
1544         int msgId,
1545         const RawBuffer &certificate,
1546         const RawBufferVector &untrustedCertificates,
1547         const RawBufferVector &trustedCertificates,
1548         bool useTrustedSystemCertificates)
1549 {
1550         CertificateImpl cert(certificate, DataFormat::FORM_DER);
1551         RawBufferVector chainRawVector;
1552         int retCode = CKM_API_ERROR_UNKNOWN;
1553
1554         try {
1555                 retCode = getCertificateChainHelper(cert,
1556                                                                                         untrustedCertificates,
1557                                                                                         trustedCertificates,
1558                                                                                         useTrustedSystemCertificates,
1559                                                                                         chainRawVector);
1560         } catch (const Exc::Exception &e) {
1561                 retCode = e.error();
1562         } catch (const std::exception &e) {
1563                 LogError("STD exception " << e.what());
1564                 retCode = CKM_API_ERROR_SERVER_ERROR;
1565         } catch (...) {
1566                 LogError("Unknown error.");
1567         }
1568
1569         return SerializeMessage(msgId, retCode, chainRawVector);
1570 }
1571
1572 RawBuffer CKMLogic::getCertificateChain(
1573         const Credentials &cred,
1574         int msgId,
1575         const RawBuffer &certificate,
1576         const OwnerNameVector &untrustedCertificates,
1577         const OwnerNameVector &trustedCertificates,
1578         bool useTrustedSystemCertificates)
1579 {
1580         int retCode = CKM_API_ERROR_UNKNOWN;
1581         CertificateImpl cert(certificate, DataFormat::FORM_DER);
1582         RawBufferVector chainRawVector;
1583
1584         try {
1585                 retCode = getCertificateChainHelper(cred,
1586                                                                                         cert,
1587                                                                                         untrustedCertificates,
1588                                                                                         trustedCertificates,
1589                                                                                         useTrustedSystemCertificates,
1590                                                                                         chainRawVector);
1591         } catch (const Exc::Exception &e) {
1592                 retCode = e.error();
1593         } catch (const std::exception &e) {
1594                 LogError("STD exception " << e.what());
1595                 retCode = CKM_API_ERROR_SERVER_ERROR;
1596         } catch (...) {
1597                 LogError("Unknown error.");
1598         }
1599
1600         return SerializeMessage(msgId, retCode, chainRawVector);
1601 }
1602
1603 RawBuffer CKMLogic::createSignature(
1604         const Credentials &cred,
1605         int msgId,
1606         const Name &privateKeyName,
1607         const ClientId &owner,
1608         const Password &password,           // password for private_key
1609         const RawBuffer &message,
1610         const CryptoAlgorithm &cryptoAlg)
1611 {
1612         RawBuffer signature;
1613
1614         int retCode = CKM_API_SUCCESS;
1615
1616         try {
1617                 retCode = tryRet([&] {
1618                         Crypto::GObjUPtr obj;
1619                         int retCode = readDataHelper(false, cred, DataType::DB_KEY_FIRST, privateKeyName,
1620                                                      owner, password, obj);
1621
1622                         if (retCode == CKM_API_SUCCESS)
1623                                 signature = obj->sign(cryptoAlg, message);
1624
1625                         return retCode;
1626                 });
1627         } catch (const std::exception &e) {
1628                 LogError("STD exception " << e.what());
1629                 retCode = CKM_API_ERROR_SERVER_ERROR;
1630         }
1631
1632         return SerializeMessage(msgId, retCode, signature);
1633 }
1634
1635 RawBuffer CKMLogic::verifySignature(
1636         const Credentials &cred,
1637         int msgId,
1638         const Name &publicKeyOrCertName,
1639         const ClientId &owner,
1640         const Password &password,           // password for public_key (optional)
1641         const RawBuffer &message,
1642         const RawBuffer &signature,
1643         const CryptoAlgorithm &params)
1644 {
1645         return SerializeMessage(msgId, tryRet([&] {
1646                 // try certificate first - looking for a public key.
1647                 // in case of PKCS, pub key from certificate will be found first
1648                 // rather than private key from the same PKCS.
1649                 Crypto::GObjUPtr obj;
1650                 int retCode = readDataHelper(false, cred, DataType::CERTIFICATE,
1651                                              publicKeyOrCertName, owner, password, obj);
1652
1653                 if (retCode == CKM_API_ERROR_DB_ALIAS_UNKNOWN)
1654                         retCode = readDataHelper(false, cred, DataType::DB_KEY_FIRST,
1655                                                                          publicKeyOrCertName, owner, password, obj);
1656
1657                 if (retCode == CKM_API_SUCCESS)
1658                         retCode = obj->verify(params, message, signature);
1659
1660                 return retCode;
1661         }));
1662 }
1663
1664 int CKMLogic::setPermissionHelper(
1665         const Credentials &cred,                // who's the client
1666         const Name &name,
1667         const ClientId &owner,                     // who's the owner
1668         const ClientId &accessor,             // who will get the access
1669         const PermissionMask permissionMask)
1670 {
1671         auto &handler = selectDatabase(cred, owner);
1672
1673         // we don't know the client
1674         if (cred.client.empty() || !isClientValid(cred.client))
1675                 return CKM_API_ERROR_INPUT_PARAM;
1676
1677         // verify name and owner are correct
1678         if (!isNameValid(name) || !isClientValid(owner) ||
1679                         !isClientValid(accessor))
1680                 return CKM_API_ERROR_INPUT_PARAM;
1681
1682         // currently we don't support modification of owner's permissions to his own rows
1683         if (owner == accessor)
1684                 return CKM_API_ERROR_INPUT_PARAM;
1685
1686         // system database does not support write/remove permissions
1687         if ((0 == owner.compare(CLIENT_ID_SYSTEM)) &&
1688                         (permissionMask & Permission::REMOVE))
1689                 return CKM_API_ERROR_INPUT_PARAM;
1690
1691         // can the client modify permissions to owner's row?
1692         int retCode = m_accessControl.canModify(cred, owner);
1693
1694         if (retCode != CKM_API_SUCCESS)
1695                 return retCode;
1696
1697         DB::Crypto::Transaction transaction(&handler.database);
1698
1699         if (!handler.database.isNameOwnerPresent(name, owner))
1700                 return CKM_API_ERROR_DB_ALIAS_UNKNOWN;
1701
1702         // set permissions to the row owned by owner for accessor
1703         handler.database.setPermission(name, owner, accessor, permissionMask);
1704         transaction.commit();
1705
1706         return CKM_API_SUCCESS;
1707 }
1708
1709 RawBuffer CKMLogic::setPermission(
1710         const Credentials &cred,
1711         const int msgID,
1712         const Name &name,
1713         const ClientId &owner,
1714         const ClientId &accessor,
1715         const PermissionMask permissionMask)
1716 {
1717         return SerializeMessage(msgID, tryRet([&] {
1718                 return setPermissionHelper(cred, name, owner, accessor, permissionMask);
1719         }));
1720 }
1721
1722 } // namespace CKM
1723