/*
- * Copyright (c) 2000 - 2014 Samsung Electronics Co., Ltd All Rights Reserved
+ * Copyright (c) 2014-2021 Samsung Electronics Co., Ltd. All rights reserved
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
*/
#include <dpl/serialization.h>
#include <dpl/log/log.h>
-#include <ckm/key-manager.h>
#include <ckm/ckm-error.h>
#include <ckm/ckm-type.h>
#include <key-provider.h>
#include <file-system.h>
-#include <CryptoService.h>
#include <ckm-logic.h>
-#include <generic-key.h>
+#include <key-impl.h>
+#include <key-aes-impl.h>
+#include <certificate-config.h>
+#include <certificate-store.h>
+#include <algorithm>
+#include <sw-backend/store.h>
+#include <generic-backend/exception.h>
+#include <ss-migrate.h>
namespace {
-const char * const CERT_SYSTEM_DIR = "/etc/ssl/certs";
+const char *const CERT_SYSTEM_DIR = CA_CERTS_DIR;
+const char *const DEFAULT_UNLOCK_STRING = "cAtRugU7";
+
+bool isClientValid(const CKM::ClientId &client)
+{
+ if (client.find(CKM::ALIAS_SEPARATOR) != CKM::ClientId::npos)
+ return false;
+
+ return true;
+}
+
+bool isNameValid(const CKM::Name &name)
+{
+ if (name.find(CKM::ALIAS_SEPARATOR) != CKM::Name::npos)
+ return false;
+
+ return true;
+}
+
} // anonymous namespace
namespace CKM {
+namespace {
+
+template <int ERROR_ON_CKM_EXCEPTION = CKM_API_ERROR_SERVER_ERROR, class F>
+int tryRet(F &&f)
+{
+ try {
+ static_assert(std::is_same_v<decltype(std::forward<F>(f)()), int>);
+ return std::forward<F>(f)();
+ } catch (const Exc::Exception &e) {
+ return e.error();
+ } catch (const CKM::Exception &e) {
+ LogError("CKM::Exception: " << e.GetMessage());
+ return ERROR_ON_CKM_EXCEPTION;
+ }
+}
+
+int toBinaryData(const Crypto::Data &input, Crypto::Data &output)
+{
+ // verify the data integrity
+ if (input.type.isKey()) {
+ KeyShPtr output_key;
+
+ if (input.type.isSymmetricKey())
+ output_key = CKM::Key::createAES(input.data);
+ else
+ output_key = CKM::Key::create(input.data);
+
+ if (output_key.get() == NULL) {
+ LogDebug("provided binary data is not valid key data");
+ return CKM_API_ERROR_INPUT_PARAM;
+ }
+
+ output = Crypto::Data(input.type, output_key->getDER());
+ } else if (input.type.isCertificate() || input.type.isChainCert()) {
+ CertificateShPtr cert = CKM::Certificate::create(input.data, DataFormat::FORM_DER);
+
+ if (cert.get() == NULL) {
+ LogDebug("provided binary data is not valid certificate data");
+ return CKM_API_ERROR_INPUT_PARAM;
+ }
+
+ output = Crypto::Data(input.type, cert->getDER());
+ } else {
+ output = input;
+ }
+
+ // TODO: add here BINARY_DATA verification, i.e: max size etc.
+ return CKM_API_SUCCESS;
+}
+
+int verifyBinaryData(const Crypto::Data &input)
+{
+ Crypto::Data dummy;
+ return toBinaryData(input, dummy);
+}
+
+int readSingleRow(const Name &name,
+ const ClientId &owner,
+ DataType dataType,
+ DB::Crypto &database,
+ DB::Row &row)
+{
+ DB::Crypto::RowOptional row_optional;
+
+ if (dataType.isKey()) {
+ // read all key types
+ row_optional = database.getRow(name,
+ owner,
+ DataType::DB_KEY_FIRST,
+ DataType::DB_KEY_LAST);
+ } else {
+ // read anything else
+ row_optional = database.getRow(name,
+ owner,
+ dataType);
+ }
+
+ if (!row_optional) {
+ LogDebug("No row for given name, owner and type");
+ return CKM_API_ERROR_DB_ALIAS_UNKNOWN;
+ } else {
+ row = *row_optional;
+ }
+
+ return CKM_API_SUCCESS;
+}
+
+int readMultiRow(const Name &name,
+ const ClientId &owner,
+ DataType dataType,
+ DB::Crypto &database,
+ DB::RowVector &output)
+{
+ if (dataType.isKey())
+ // read all key types
+ database.getRows(name,
+ owner,
+ DataType::DB_KEY_FIRST,
+ DataType::DB_KEY_LAST,
+ output);
+ else if (dataType.isChainCert())
+ // read all key types
+ database.getRows(name,
+ owner,
+ DataType::DB_CHAIN_FIRST,
+ DataType::DB_CHAIN_LAST,
+ output);
+ else
+ // read anything else
+ database.getRows(name,
+ owner,
+ dataType,
+ output);
+
+ if (!output.size()) {
+ LogDebug("No row for given name, owner and type");
+ return CKM_API_ERROR_DB_ALIAS_UNKNOWN;
+ }
+
+ return CKM_API_SUCCESS;
+}
+
+} // namespace
+
+const uid_t CKMLogic::SYSTEM_DB_UID = 0;
+const uid_t CKMLogic::ADMIN_USER_DB_UID = 5001;
+
CKMLogic::CKMLogic()
{
- int retCode = FileSystem::init();
- // TODO what can I do when init went wrong? exit(-1) ??
- if (retCode) {
- LogError("Fatal error in FileSystem::init()");
- }
+ CertificateConfig::addSystemCertificateDir(CERT_SYSTEM_DIR);
+
+ m_accessControl.updateCCMode();
+}
+
+CKMLogic::~CKMLogic() {}
+
+void CKMLogic::loadDKEKFile(uid_t user, const Password &password)
+{
+ auto &handle = m_userDataMap[user];
+
+ FileSystem fs(user);
+
+ auto wrappedDKEK = fs.getDKEK();
+
+ if (wrappedDKEK.empty()) {
+ wrappedDKEK = KeyProvider::generateDomainKEK(std::to_string(user), password);
+ fs.saveDKEK(wrappedDKEK);
+ }
+
+ handle.keyProvider = KeyProvider(wrappedDKEK, password);
+ if (!handle.keyProvider.isInitialized()) {
+ handle.keyProvider.migrateDomainKEK(wrappedDKEK, password);
+ fs.saveDKEK(handle.keyProvider.getWrappedDomainKEK(password));
+ LogInfo("DKEK migrated");
+ }
+}
+
+void CKMLogic::saveDKEKFile(uid_t user, const Password &password)
+{
+ auto &handle = m_userDataMap[user];
- if (CKM_API_SUCCESS != m_certStore.setSystemCertificateDir(CERT_SYSTEM_DIR)) {
- LogError("Fatal error in CertificateStore::setSystemCertificateDir. Chain creation will not work");
- }
+ FileSystem fs(user);
+ fs.saveDKEK(handle.keyProvider.getWrappedDomainKEK(password));
}
-CKMLogic::~CKMLogic(){}
+void CKMLogic::migrateSecureStorageData(bool isAdminUser)
+{
+ SsMigration::migrate(isAdminUser, [this](const std::string &name,
+ const Crypto::Data &data,
+ bool adminUserFlag) {
+ LogInfo("Migrate data called with name: " << name);
+ auto ownerId = adminUserFlag ? CLIENT_ID_ADMIN_USER : CLIENT_ID_SYSTEM;
+ auto uid = adminUserFlag ? ADMIN_USER_DB_UID : SYSTEM_DB_UID;
+
+ int ret = verifyAndSaveDataHelper(Credentials(uid, ownerId), name, ownerId, data,
+ PolicySerializable());
+
+ if (ret == CKM_API_ERROR_DB_ALIAS_EXISTS)
+ LogWarning("Alias already exist for migrated name: " << name);
+ else if (ret != CKM_API_SUCCESS)
+ LogError("Failed to migrate secure-storage data. name: " << name <<
+ " ret: " << ret);
+ });
+}
+
+int CKMLogic::unlockDatabase(uid_t user, const Password &password)
+{
+ if (0 < m_userDataMap.count(user) &&
+ m_userDataMap[user].keyProvider.isInitialized())
+ return CKM_API_SUCCESS;
+
+ int retCode = tryRet([&] {
+ auto &handle = m_userDataMap[user];
+
+ FileSystem fs(user);
+ loadDKEKFile(user, password);
+
+ auto wrappedDatabaseDEK = fs.getDBDEK();
+
+ if (wrappedDatabaseDEK.empty()) {
+ wrappedDatabaseDEK = handle.keyProvider.generateDEK(std::to_string(user));
+ fs.saveDBDEK(wrappedDatabaseDEK);
+ }
-RawBuffer CKMLogic::unlockUserKey(uid_t user, const std::string &password) {
- // TODO try catch for all errors that should be supported by error code
- int retCode = CKM_API_SUCCESS;
+ RawBuffer key = handle.keyProvider.getPureDEK(wrappedDatabaseDEK);
- try {
- if (0 == m_userDataMap.count(user) || !(m_userDataMap[user].keyProvider.isInitialized())) {
- auto &handle = m_userDataMap[user];
- FileSystem fs(user);
- auto wrappedDomainKEK = fs.getDomainKEK();
+ handle.database = DB::Crypto(fs.getLegacyDBPath(), fs.getDBPath(), key);
+ handle.crypto = CryptoLogic();
- if (wrappedDomainKEK.empty()) {
- wrappedDomainKEK = KeyProvider::generateDomainKEK(std::to_string(user), password);
- fs.saveDomainKEK(wrappedDomainKEK);
- }
+ if (!m_accessControl.isSystemService(user)) {
+ // remove data of removed apps during locked state
+ ClientIdVector removedApps = fs.clearRemovedsApps();
- handle.keyProvider = KeyProvider(wrappedDomainKEK, password);
+ for (auto &app : removedApps) {
+ handle.crypto.removeKey(app);
+ handle.database.deleteKey(app);
+ }
+ }
- RawBuffer key = handle.keyProvider.getPureDomainKEK();
- handle.database = DBCrypto(fs.getDBPath(), key);
- handle.crypto = DBCryptoModule(key);
- // TODO wipe key
- }
- } catch (const KeyProvider::Exception::Base &e) {
- LogError("Error in KeyProvider " << e.GetMessage());
- retCode = CKM_API_ERROR_SERVER_ERROR;
- }
+ if (user == SYSTEM_DB_UID && SsMigration::hasData())
+ migrateSecureStorageData(false);
+ else if (user == ADMIN_USER_DB_UID && SsMigration::hasData())
+ migrateSecureStorageData(true);
- MessageBuffer response;
- Serialization::Serialize(response, retCode);
- return response.Pop();
+ return CKM_API_SUCCESS;
+ });
+
+ if (CKM_API_SUCCESS != retCode)
+ m_userDataMap.erase(user);
+
+ return retCode;
+}
+
+int CKMLogic::unlockSystemDB()
+{
+ return unlockDatabase(SYSTEM_DB_UID, DEFAULT_UNLOCK_STRING);
+}
+
+UserData &CKMLogic::selectDatabase(const Credentials &cred,
+ const ClientId &owner)
+{
+ // if user trying to access system service - check:
+ // * if user database is unlocked [mandatory]
+ // * if not - proceed with regular user database
+ // * if explicit system database owner given -> switch to system DB
+ if (!m_accessControl.isSystemService(cred)) {
+ if (0 == m_userDataMap.count(cred.clientUid))
+ ThrowErr(Exc::DatabaseLocked, "database with UID: ", cred.clientUid, " locked");
+
+ if (0 != owner.compare(CLIENT_ID_SYSTEM))
+ return m_userDataMap[cred.clientUid];
+ }
+
+ // system database selected, modify the owner id
+ if (CKM_API_SUCCESS != unlockSystemDB())
+ ThrowErr(Exc::DatabaseLocked, "can not unlock system database");
+
+ return m_userDataMap[SYSTEM_DB_UID];
}
-RawBuffer CKMLogic::lockUserKey(uid_t user) {
- int retCode = CKM_API_SUCCESS;
- // TODO try catch for all errors that should be supported by error code
- m_userDataMap.erase(user);
+RawBuffer CKMLogic::unlockUserKey(uid_t user, const Password &password)
+{
+ int retCode = CKM_API_SUCCESS;
+
+ if (!m_accessControl.isSystemService(user))
+ retCode = unlockDatabase(user, password);
+ else // do not allow lock/unlock operations for system users
+ retCode = CKM_API_ERROR_INPUT_PARAM;
+
+ return SerializeMessage(retCode);
+}
- MessageBuffer response;
- Serialization::Serialize(response, retCode);
- return response.Pop();
+RawBuffer CKMLogic::updateCCMode()
+{
+ m_accessControl.updateCCMode();
+ return SerializeMessage(CKM_API_SUCCESS);
}
-RawBuffer CKMLogic::removeUserData(uid_t user) {
- int retCode = CKM_API_SUCCESS;
- // TODO try catch for all errors that should be supported by error code
- m_userDataMap.erase(user);
+RawBuffer CKMLogic::lockUserKey(uid_t user)
+{
+ int retCode = CKM_API_SUCCESS;
- FileSystem fs(user);
- fs.removeUserData();
+ if (!m_accessControl.isSystemService(user))
+ m_userDataMap.erase(user);
+ else // do not allow lock/unlock operations for system users
+ retCode = CKM_API_ERROR_INPUT_PARAM;
- MessageBuffer response;
- Serialization::Serialize(response, retCode);
- return response.Pop();
+ return SerializeMessage(retCode);
+}
+
+RawBuffer CKMLogic::removeUserData(uid_t user)
+{
+ if (m_accessControl.isSystemService(user))
+ user = SYSTEM_DB_UID;
+
+ m_userDataMap.erase(user);
+
+ const int retCode = FileSystem(user).removeUserData()
+ ? CKM_API_ERROR_FILE_SYSTEM
+ : CKM_API_SUCCESS;
+
+ return SerializeMessage(retCode);
}
RawBuffer CKMLogic::changeUserPassword(
- uid_t user,
- const std::string &oldPassword,
- const std::string &newPassword)
-{
- int retCode = CKM_API_SUCCESS;
- // TODO try-catch
- FileSystem fs(user);
- auto wrappedDomainKEK = fs.getDomainKEK();
- if (wrappedDomainKEK.empty()) {
- retCode = CKM_API_ERROR_BAD_REQUEST;
- } else {
- wrappedDomainKEK = KeyProvider::reencrypt(wrappedDomainKEK, oldPassword, newPassword);
- fs.saveDomainKEK(wrappedDomainKEK);
- }
- MessageBuffer response;
- Serialization::Serialize(response, retCode);
- return response.Pop();
+ uid_t user,
+ const Password &oldPassword,
+ const Password &newPassword)
+{
+ return SerializeMessage(tryRet([&] {
+ // do not allow to change system database password
+ if (m_accessControl.isSystemService(user))
+ return CKM_API_ERROR_INPUT_PARAM;
+
+ loadDKEKFile(user, oldPassword);
+ saveDKEKFile(user, newPassword);
+
+ return CKM_API_SUCCESS;
+ }));
}
RawBuffer CKMLogic::resetUserPassword(
- uid_t user,
- const std::string &newPassword)
-{
- int retCode = CKM_API_SUCCESS;
- // TODO try-catch
- if (0 == m_userDataMap.count(user)) {
- retCode = CKM_API_ERROR_BAD_REQUEST;
- } else {
- auto &handler = m_userDataMap[user];
- FileSystem fs(user);
- fs.saveDomainKEK(handler.keyProvider.getWrappedDomainKEK(newPassword));
- }
-
- MessageBuffer response;
- Serialization::Serialize(response, retCode);
- return response.Pop();
-}
-
-int CKMLogic::saveDataHelper(
- Credentials &cred,
- DBDataType dataType,
- const Alias &alias,
- const RawBuffer &key,
- const PolicySerializable &policy)
-{
- if (0 == m_userDataMap.count(cred.uid))
- return CKM_API_ERROR_DB_LOCKED;
-
- DBRow row = { alias, cred.smackLabel, policy.restricted,
- policy.extractable, dataType, DBCMAlgType::NONE,
- 0, RawBuffer(10, 'c'), key.size(), key };
-
- auto &handler = m_userDataMap[cred.uid];
- DBCrypto::Transaction transaction(&handler.database);
- if (!handler.crypto.haveKey(cred.smackLabel)) {
- RawBuffer key;
- auto key_optional = handler.database.getKey(cred.smackLabel);
- if(!key_optional) {
- LogDebug("No Key in database found. Generating new one for label: "
- << cred.smackLabel);
- key = handler.keyProvider.generateDEK(cred.smackLabel);
- } else {
- key = *key_optional;
- }
-
- key = handler.keyProvider.getPureDEK(key);
- handler.crypto.pushKey(cred.smackLabel, key);
- handler.database.saveKey(cred.smackLabel, key);
- }
- handler.crypto.encryptRow(policy.password, row);
- handler.database.saveDBRow(row);
- transaction.commit();
- return CKM_API_SUCCESS;
+ uid_t user,
+ const Password &newPassword)
+{
+ return SerializeMessage(tryRet([&] {
+ // do not allow to reset system database password
+ if (m_accessControl.isSystemService(user))
+ return CKM_API_ERROR_INPUT_PARAM;
+
+ int retCode = CKM_API_SUCCESS;
+
+ if (0 == m_userDataMap.count(user)) {
+ // Check if key exists. If exists we must return error
+ FileSystem fs(user);
+ auto wrappedDKEKMain = fs.getDKEK();
+
+ if (!wrappedDKEKMain.empty())
+ retCode = CKM_API_ERROR_BAD_REQUEST;
+ } else {
+ saveDKEKFile(user, newPassword);
+ }
+
+ return retCode;
+ }));
+}
+
+RawBuffer CKMLogic::removeApplicationData(const ClientId &owner)
+{
+ return SerializeMessage(tryRet([&] {
+ if (owner.empty())
+ return CKM_API_ERROR_INPUT_PARAM;
+
+ UidVector uids = FileSystem::getUIDsFromDBFile();
+
+ for (auto userId : uids) {
+ if (0 == m_userDataMap.count(userId)) {
+ FileSystem fs(userId);
+ fs.addRemovedApp(owner);
+ } else {
+ auto &handle = m_userDataMap[userId];
+ handle.crypto.removeKey(owner);
+ handle.database.deleteKey(owner);
+ }
+ }
+
+ return CKM_API_SUCCESS;
+ }));
+}
+
+int CKMLogic::verifyAndSaveDataHelper(
+ const Credentials &cred,
+ const Name &name,
+ const ClientId &owner,
+ const Crypto::Data &data,
+ const PolicySerializable &policy)
+{
+ return tryRet([&] {
+ // check if data is correct
+ Crypto::Data binaryData;
+ int retCode = toBinaryData(data, binaryData);
+ if (retCode != CKM_API_SUCCESS)
+ return retCode;
+
+ auto [dbOp, digest, ret] = beginSaveAndGetHash(cred, name, owner);
+ if (ret != CKM_API_SUCCESS)
+ return ret;
+
+ Crypto::GStore &store = m_decider.getStore(binaryData.type, policy);
+
+ // do not encrypt data with password during cc_mode on
+ Token token = store.import(binaryData,
+ m_accessControl.isCCMode() ? "" : policy.password,
+ Crypto::EncryptionParams(), digest);
+ dbOp.finalize(std::move(token), policy);
+ return CKM_API_SUCCESS;
+ });
+}
+
+int CKMLogic::getKeyForService(
+ const Credentials &cred,
+ const Name &name,
+ const ClientId &owner,
+ const Password &pass,
+ Crypto::GObjShPtr &key)
+{
+ return tryRet([&] {
+ // Key is for internal service use. It won't be exported to the client
+ Crypto::GObjUPtr obj;
+ int retCode = readDataHelper(false, cred, DataType::DB_KEY_FIRST, name, owner, pass, obj);
+ if (retCode == CKM_API_SUCCESS)
+ key = std::move(obj);
+
+ return retCode;
+ });
}
RawBuffer CKMLogic::saveData(
- Credentials &cred,
- int commandId,
- DBDataType dataType,
- const Alias &alias,
- const RawBuffer &key,
- const PolicySerializable &policy)
-{
- int retCode = CKM_API_SUCCESS;
- try {
- retCode = saveDataHelper(cred, dataType, alias, key, policy);
- LogDebug("SaveDataHelper returned: " << retCode);
- } catch (const KeyProvider::Exception::Base &e) {
- LogError("KeyProvider failed with message: " << e.GetMessage());
- retCode = CKM_API_ERROR_SERVER_ERROR;
- } catch (const DBCryptoModule::Exception::Base &e) {
- LogError("DBCryptoModule failed with message: " << e.GetMessage());
- retCode = CKM_API_ERROR_SERVER_ERROR;
- } catch (const DBCrypto::Exception::InternalError &e) {
- LogError("DBCrypto failed with message: " << e.GetMessage());
- retCode = CKM_API_ERROR_DB_ERROR;
- } catch (const DBCrypto::Exception::AliasExists &e) {
- LogError("DBCrypto couldn't save duplicate alias");
- retCode = CKM_API_ERROR_DB_ALIAS_EXISTS;
- } catch (const DBCrypto::Exception::TransactionError &e) {
- LogError("DBCrypto transaction failed with message " << e.GetMessage());
- retCode = CKM_API_ERROR_DB_ERROR;
- }
-
- MessageBuffer response;
- Serialization::Serialize(response, static_cast<int>(LogicCommand::SAVE));
- Serialization::Serialize(response, commandId);
- Serialization::Serialize(response, retCode);
- Serialization::Serialize(response, static_cast<int>(dataType));
-
- return response.Pop();
+ const Credentials &cred,
+ int msgId,
+ const Name &name,
+ const ClientId &owner,
+ const Crypto::Data &data,
+ const PolicySerializable &policy)
+{
+ int retCode = verifyAndSaveDataHelper(cred, name, owner, data, policy);
+ return SerializeMessage(msgId, retCode, data.type);
+}
+
+RawBuffer CKMLogic::savePKCS12(
+ const Credentials &cred,
+ int msgId,
+ const Name &name,
+ const ClientId &owner,
+ const PKCS12Serializable &pkcs,
+ const PolicySerializable &keyPolicy,
+ const PolicySerializable &certPolicy)
+{
+ return SerializeMessage(msgId, tryRet([&] {
+ auto [dbOp, retCode] = beginSave(cred, name, owner);
+ if (retCode != CKM_API_SUCCESS)
+ return retCode;
+
+ // extract and encrypt the data
+ DB::RowVector encryptedRows;
+
+ auto import = [&](const Crypto::Data &data, const Policy& policy){
+ retCode = verifyBinaryData(data);
+ if (retCode != CKM_API_SUCCESS)
+ return retCode;
+
+ auto digest = CryptoLogic::makeHash(name, owner, cred.clientUid, data.type);
+ if (digest.empty())
+ return CKM_API_ERROR_HASH_ERROR;
+
+ Crypto::GStore &store = m_decider.getStore(data.type, policy);
+
+ // do not encrypt data with password during cc_mode on
+ Token token = store.import(data,
+ m_accessControl.isCCMode() ? "" : policy.password,
+ Crypto::EncryptionParams(), digest);
+
+ encryptedRows.push_back(dbOp.encryptOne(std::move(token), policy));
+ return CKM_API_SUCCESS;
+ };
+
+ // private key is mandatory
+ auto key = pkcs.getKey();
+ if (!key) {
+ LogError("Failed to get private key from pkcs");
+ return CKM_API_ERROR_INVALID_FORMAT;
+ }
+
+ Crypto::Data keyData(DataType(key->getType()), key->getDER());
+ retCode = import(keyData, keyPolicy);
+ if (retCode != CKM_API_SUCCESS)
+ return retCode;
+
+ // certificate is mandatory
+ auto cert = pkcs.getCertificate();
+ if (!cert) {
+ LogError("Failed to get certificate from pkcs");
+ return CKM_API_ERROR_INVALID_FORMAT;
+ }
+
+ Crypto::Data certData(DataType::CERTIFICATE, cert->getDER());
+ retCode = import(certData, certPolicy);
+ if (retCode != CKM_API_SUCCESS)
+ return retCode;
+
+ // CA cert chain
+ unsigned int cert_index = 0;
+ for (const auto &ca : pkcs.getCaCertificateShPtrVector()) {
+ Crypto::Data caCertData(DataType::getChainDatatype(cert_index ++), ca->getDER());
+ retCode = import(caCertData, certPolicy);
+ if (retCode != CKM_API_SUCCESS)
+ return retCode;
+ }
+
+ // save the data
+ dbOp.database().saveRows(name, owner, encryptedRows);
+ dbOp.transaction().commit();
+
+ return CKM_API_SUCCESS;
+ }));
}
RawBuffer CKMLogic::removeData(
- Credentials &cred,
- int commandId,
- DBDataType dataType,
- const Alias &alias)
-{
- int retCode = CKM_API_SUCCESS;
-
- if (0 < m_userDataMap.count(cred.uid)) {
- Try {
- m_userDataMap[cred.uid].database.deleteDBRow(alias, cred.smackLabel);
- } Catch (CKM::Exception) {
- LogError("Error in deleting row!");
- retCode = CKM_API_ERROR_DB_ERROR;
- }
- } else {
- retCode = CKM_API_ERROR_DB_LOCKED;
- }
-
- MessageBuffer response;
- Serialization::Serialize(response, static_cast<int>(LogicCommand::REMOVE));
- Serialization::Serialize(response, commandId);
- Serialization::Serialize(response, retCode);
- Serialization::Serialize(response, static_cast<int>(dataType));
-
- return response.Pop();
-}
-
-int CKMLogic::getDataHelper(
- Credentials &cred,
- DBDataType dataType,
- const Alias &alias,
- const std::string &password,
- DBRow &row)
-{
-
- if (0 == m_userDataMap.count(cred.uid))
- return CKM_API_ERROR_DB_LOCKED;
-
- auto &handler = m_userDataMap[cred.uid];
-
- DBCrypto::DBRowOptional row_optional;
- if (dataType == DBDataType::CERTIFICATE || dataType == DBDataType::BINARY_DATA) {
- row_optional = handler.database.getDBRow(alias, cred.smackLabel, dataType);
- } else if ((static_cast<int>(dataType) >= static_cast<int>(DBDataType::DB_KEY_FIRST))
- && (static_cast<int>(dataType) <= static_cast<int>(DBDataType::DB_KEY_LAST)))
- {
- row_optional = handler.database.getKeyDBRow(alias, cred.smackLabel);
- } else {
- LogError("Unknown type of requested data" << (int)dataType);
- return CKM_API_ERROR_BAD_REQUEST;
- }
- if(!row_optional) {
- LogError("No row for given alias, label and type");
- return CKM_API_ERROR_DB_ALIAS_UNKNOWN;
- } else {
- row = *row_optional;
- }
-
- if (!handler.crypto.haveKey(row.smackLabel)) {
- RawBuffer key;
- auto key_optional = handler.database.getKey(row.smackLabel);
- if(!key_optional) {
- LogError("No key for given label in database");
- return CKM_API_ERROR_DB_ERROR;
- }
- key = *key_optional;
- key = handler.keyProvider.getPureDEK(key);
- handler.crypto.pushKey(cred.smackLabel, key);
- }
- handler.crypto.decryptRow(password, row);
-
- return CKM_API_SUCCESS;
+ const Credentials &cred,
+ int msgId,
+ const Name &name,
+ const ClientId &owner)
+{
+ return SerializeMessage(msgId, tryRet([&] {
+ auto [dbOp, permission, retCode] = beginAndGetPerm(cred, name, owner);
+ if (retCode != CKM_API_SUCCESS)
+ return retCode;
+
+ retCode = m_accessControl.canDelete(cred, permission);
+ if (retCode != CKM_API_SUCCESS) {
+ LogWarning("access control check result: " << retCode);
+ return retCode;
+ }
+
+ // get all matching rows
+ DB::RowVector rows;
+ dbOp.database().getRows(name, owner, DataType::DB_FIRST, DataType::DB_LAST, rows);
+ if (rows.empty()) {
+ LogDebug("No row for given name and owner");
+ return CKM_API_ERROR_DB_ALIAS_UNKNOWN;
+ }
+
+ retCode = dbOp.loadAppKey();
+ if (retCode != CKM_API_SUCCESS)
+ return retCode;
+
+ // destroy it in store
+ for (auto &r : rows) {
+ try {
+ dbOp.handler().crypto.decryptRow(Password(), r);
+ m_decider.getStore(r).destroy(r);
+ } catch (const Exc::AuthenticationFailed &) {
+ LogDebug("Authentication failed when removing data. Ignored.");
+ }
+ }
+
+ // delete row in db
+ dbOp.database().deleteRow(name, owner);
+ dbOp.transaction().commit();
+
+ return CKM_API_SUCCESS;
+ }));
+}
+
+
+int CKMLogic::checkDataPermissionsHelper(const Credentials &accessorCred,
+ const DB::Row &row,
+ bool exportFlag,
+ const PermissionMask& permission)
+{
+ if (exportFlag)
+ return m_accessControl.canExport(accessorCred, row, permission);
+
+ return m_accessControl.canRead(accessorCred, permission);
+}
+
+void CKMLogic::decryptRow(
+ UserData &handler,
+ DB::Row &row,
+ const Password &password,
+ const RawBuffer &hash)
+{
+ if (CryptoLogic::getSchemeVersion(row.encryptionScheme) ==
+ CryptoLogic::ENCRYPTION_V2) {
+ handler.crypto.decryptRow(Password(), row);
+ } else {
+ Crypto::GStore &store = m_decider.getStore(row);
+
+ Password pass = m_accessControl.isCCMode() ? "" : password;
+
+ // decrypt entirely with old scheme: b64(pass(appkey(data))) -> data
+ handler.crypto.decryptRow(pass, row);
+ // destroy it in store
+ store.destroy(row);
+
+ // import it to store with new scheme: data -> pass(data)
+ Token token = store.import(Crypto::Data(row.dataType, row.data),
+ pass,
+ Crypto::EncryptionParams(),
+ hash);
+
+ // update row with new token
+ *static_cast<Token *>(&row) = std::move(token);
+
+ // encrypt it with app key: pass(data) -> b64(appkey(pass(data))
+ auto encryptedRow = handler.crypto.encryptRow(row);
+
+ // update it in db
+ handler.database.updateRow(encryptedRow);
+ }
+}
+
+Crypto::GObjUPtr CKMLogic::rowToObject(
+ UserData &handler,
+ DB::Row row,
+ const Password &password,
+ const RawBuffer &hash)
+{
+ decryptRow(handler, row, password, hash);
+
+ return decryptedRowToObj(row, password);
+}
+
+int CKMLogic::readDataHelper(
+ bool exportFlag,
+ const Credentials &cred,
+ DataType dataType,
+ const Name &name,
+ const ClientId &owner,
+ const Password &password,
+ Crypto::GObjUPtrVector &objs)
+{
+ auto [dbOp, permission, retCode] = beginAndGetPerm(cred, name, owner);
+ if (retCode != CKM_API_SUCCESS)
+ return retCode;
+
+ // read rows
+ DB::RowVector rows;
+ retCode = readMultiRow(name, owner, dataType, dbOp.database(), rows);
+ if (CKM_API_SUCCESS != retCode)
+ return retCode;
+
+ // all read rows belong to the same owner
+ DB::Row &firstRow = rows.at(0);
+
+ // check access rights
+ retCode = checkDataPermissionsHelper(cred, firstRow, exportFlag, permission);
+ if (CKM_API_SUCCESS != retCode)
+ return retCode;
+
+ // for multiple objects add type as hash input (see pkcs12)
+ bool multiple = rows.size() > 1;
+
+ RawBuffer digest;
+
+ retCode = dbOp.loadAppKey();
+ if (retCode != CKM_API_SUCCESS)
+ return retCode;
+
+ // decrypt row
+ for (auto &row : rows) {
+ if (multiple)
+ digest = CryptoLogic::makeHash(name, owner, cred.clientUid, row.dataType);
+ else
+ digest = CryptoLogic::makeHash(name, owner, cred.clientUid);
+
+ if (digest.empty())
+ return CKM_API_ERROR_HASH_ERROR;
+
+ objs.push_back(rowToObject(dbOp.handler(), std::move(row), password, digest));
+ }
+
+ // rowToObject may modify db
+ dbOp.transaction().commit();
+
+ return CKM_API_SUCCESS;
+}
+
+int CKMLogic::readDataHelper(
+ bool exportFlag,
+ const Credentials &cred,
+ DataType dataType,
+ const Name &name,
+ const ClientId &owner,
+ const Password &password,
+ Crypto::GObjUPtr &obj)
+{
+ DataType objDataType;
+ return readDataHelper(exportFlag, cred, dataType, name, owner,
+ password, obj, objDataType);
+}
+
+int CKMLogic::readRowHelper(
+ bool exportFlag,
+ const Credentials &cred,
+ DataType dataType,
+ const Name &name,
+ const ClientId &owner,
+ const Password &password,
+ DB::Row &row,
+ DataType &objDataType)
+{
+ auto [dbOp, permission, retCode] = beginAndGetPerm(cred, name, owner);
+ if (retCode != CKM_API_SUCCESS)
+ return retCode;
+
+ retCode = readSingleRow(name, owner, dataType, dbOp.database(), row);
+ if (CKM_API_SUCCESS != retCode)
+ return retCode;
+
+ retCode = dbOp.loadAppKey();
+ if (retCode != CKM_API_SUCCESS)
+ return retCode;
+
+ objDataType = row.dataType;
+
+ // check access rights
+ retCode = checkDataPermissionsHelper(cred, row, exportFlag, permission);
+ if (retCode != CKM_API_SUCCESS)
+ return retCode;
+
+ auto digest = CryptoLogic::makeHash(name, owner, cred.clientUid);
+ if (digest.empty())
+ return CKM_API_ERROR_HASH_ERROR;
+
+ decryptRow(dbOp.handler(), row, password, digest);
+
+ // decryptRow may modify db
+ dbOp.transaction().commit();
+
+ return CKM_API_SUCCESS;
+}
+
+Crypto::GObjUPtr CKMLogic::decryptedRowToObj(const DB::Row& row, const Password &password)
+{
+ Crypto::GStore &store = m_decider.getStore(row);
+
+ Password pass = m_accessControl.isCCMode() ? "" : password;
+ return store.getObject(row, pass);
+}
+
+int CKMLogic::readDataHelper(
+ bool exportFlag,
+ const Credentials &cred,
+ DataType dataType,
+ const Name &name,
+ const ClientId &owner,
+ const Password &password,
+ Crypto::GObjUPtr &obj,
+ DataType &objDataType)
+{
+ DB::Row row;
+ int retCode = readRowHelper(exportFlag, cred, dataType, name, owner, password, row, objDataType);
+ if (retCode != CKM_API_SUCCESS)
+ return retCode;
+
+ obj = decryptedRowToObj(row, password);
+
+ return CKM_API_SUCCESS;
}
RawBuffer CKMLogic::getData(
- Credentials &cred,
- int commandId,
- DBDataType dataType,
- const Alias &alias,
- const std::string &password)
-{
- int retCode = CKM_API_SUCCESS;
- DBRow row;
-
- try {
- retCode = getDataHelper(cred, dataType, alias, password, row);
- } catch (const KeyProvider::Exception::Base &e) {
- LogError("KeyProvider failed with error: " << e.GetMessage());
- retCode = CKM_API_ERROR_SERVER_ERROR;
- } catch (const DBCryptoModule::Exception::Base &e) {
- LogError("DBCryptoModule failed with message: " << e.GetMessage());
- retCode = CKM_API_ERROR_SERVER_ERROR;
- } catch (const DBCrypto::Exception::Base &e) {
- LogError("DBCrypto failed with message: " << e.GetMessage());
- retCode = CKM_API_ERROR_DB_ERROR;
- }
-
- if (CKM_API_SUCCESS != retCode) {
- row.data.clear();
- row.dataType = dataType;
- }
-
- MessageBuffer response;
- Serialization::Serialize(response, static_cast<int>(LogicCommand::GET));
- Serialization::Serialize(response, commandId);
- Serialization::Serialize(response, retCode);
- Serialization::Serialize(response, static_cast<int>(row.dataType));
- Serialization::Serialize(response, row.data);
- return response.Pop();
+ const Credentials &cred,
+ int msgId,
+ DataType dataType,
+ const Name &name,
+ const ClientId &owner,
+ const Password &password)
+{
+ RawBuffer rowData;
+ DataType objDataType;
+
+ int retCode = tryRet([&] {
+ Crypto::GObjUPtr obj;
+ int retCode2 = readDataHelper(true, cred, dataType, name, owner,
+ password, obj, objDataType);
+
+ if (retCode2 == CKM_API_SUCCESS)
+ rowData = obj->getBinary();
+
+ return retCode2;
+ });
+
+ if (CKM_API_SUCCESS != retCode)
+ rowData.clear();
+
+ return SerializeMessage(msgId, retCode, objDataType, rowData);
+}
+
+RawBuffer CKMLogic::getDataProtectionStatus(
+ const Credentials &cred,
+ int msgId,
+ DataType dataType,
+ const Name &name,
+ const ClientId &owner)
+{
+ bool status = false;
+ DataType objDataType;
+ Password password;
+
+ int retCode = tryRet([&] {
+ Crypto::GObjUPtr obj;
+ return readDataHelper(false, cred, dataType, name, owner, password, obj, objDataType);
+ });
+
+ if (retCode == CKM_API_ERROR_AUTHENTICATION_FAILED) {
+ status = true;
+ retCode = CKM_API_SUCCESS;
+ }
+
+ return SerializeMessage(msgId, retCode, objDataType, status);
+}
+
+RawBuffer CKMLogic::getPKCS12(
+ const Credentials &cred,
+ int msgId,
+ const Name &name,
+ const ClientId &owner,
+ const Password &keyPassword,
+ const Password &certPassword)
+{
+ PKCS12Serializable output;
+
+ int retCode = tryRet([&] {
+ KeyShPtr privKey;
+ CertificateShPtr cert;
+ CertificateShPtrVector caChain;
+
+ // read private key (mandatory)
+ Crypto::GObjUPtr keyObj;
+ int retCode2 = readDataHelper(true, cred, DataType::DB_KEY_FIRST, name, owner,
+ keyPassword, keyObj);
+
+ if (retCode2 != CKM_API_SUCCESS) {
+ if (retCode2 != CKM_API_ERROR_NOT_EXPORTABLE)
+ return retCode2;
+ } else {
+ privKey = CKM::Key::create(keyObj->getBinary());
+ }
+
+ // read certificate (mandatory)
+ Crypto::GObjUPtr certObj;
+ retCode2 = readDataHelper(true, cred, DataType::CERTIFICATE, name, owner,
+ certPassword, certObj);
+
+ if (retCode2 != CKM_API_SUCCESS) {
+ if (retCode2 != CKM_API_ERROR_NOT_EXPORTABLE)
+ return retCode2;
+ } else {
+ cert = CKM::Certificate::create(certObj->getBinary(), DataFormat::FORM_DER);
+ }
+
+ // read CA cert chain (optional)
+ Crypto::GObjUPtrVector caChainObjs;
+ retCode2 = readDataHelper(true, cred, DataType::DB_CHAIN_FIRST, name, owner,
+ certPassword, caChainObjs);
+
+ if (retCode2 != CKM_API_SUCCESS && retCode2 != CKM_API_ERROR_DB_ALIAS_UNKNOWN) {
+ if (retCode2 != CKM_API_ERROR_NOT_EXPORTABLE)
+ return retCode2;
+ } else {
+ for (auto &caCertObj : caChainObjs)
+ caChain.push_back(CKM::Certificate::create(caCertObj->getBinary(),
+ DataFormat::FORM_DER));
+ }
+
+ // if anything found, return it
+ if (privKey || cert || caChain.size() > 0)
+ retCode2 = CKM_API_SUCCESS;
+
+ // prepare response
+ if (retCode2 != CKM_API_SUCCESS)
+ return retCode2;
+
+ output = PKCS12Serializable(std::move(privKey), std::move(cert), std::move(caChain));
+ return CKM_API_SUCCESS;
+ });
+
+ return SerializeMessage(msgId, retCode, output);
+}
+
+int CKMLogic::getAliasInfoListHelper(const Credentials &cred,
+ const DataType dataType,
+ AliasInfoVector &aliasInfoVector)
+{
+ int retCode = CKM_API_ERROR_DB_LOCKED;
+
+ if (0 < m_userDataMap.count(cred.clientUid)) {
+ auto &database = m_userDataMap[cred.clientUid].database;
+
+ retCode = tryRet<CKM_API_ERROR_DB_ERROR>([&] {
+ AliasInfoVector tmpVector;
+
+ if (dataType.isKey()) {
+ // list all key types
+ database.listInfos(cred.client,
+ tmpVector,
+ DataType::DB_KEY_FIRST,
+ DataType::DB_KEY_LAST);
+ } else {
+ // list anything else
+ database.listInfos(cred.client, tmpVector, dataType);
+ }
+
+ aliasInfoVector.insert(aliasInfoVector.end(), tmpVector.begin(), tmpVector.end());
+ return CKM_API_SUCCESS;
+ });
+ }
+
+ return retCode;
}
RawBuffer CKMLogic::getDataList(
- Credentials &cred,
- int commandId,
- DBDataType dataType)
-{
- int retCode = CKM_API_SUCCESS;
- AliasVector aliasVector;
-
- if (0 < m_userDataMap.count(cred.uid)) {
- auto &handler = m_userDataMap[cred.uid];
- Try {
- if (dataType == DBDataType::CERTIFICATE || dataType == DBDataType::BINARY_DATA) {
- handler.database.getAliases(dataType, cred.smackLabel, aliasVector);
- } else {
- handler.database.getKeyAliases(cred.smackLabel, aliasVector);
- }
- } Catch (CKM::Exception) {
- LogError("Failed to get aliases");
- retCode = CKM_API_ERROR_DB_ERROR;
- }
- } else {
- retCode = CKM_API_ERROR_DB_LOCKED;
- }
-
- MessageBuffer response;
- Serialization::Serialize(response, static_cast<int>(LogicCommand::GET_LIST));
- Serialization::Serialize(response, commandId);
- Serialization::Serialize(response, retCode);
- Serialization::Serialize(response, static_cast<int>(dataType));
- Serialization::Serialize(response, aliasVector);
- return response.Pop();
-}
-
-int CKMLogic::createKeyPairRSAHelper(
- Credentials &cred,
- int size,
- const Alias &aliasPrivate,
- const Alias &aliasPublic,
- const PolicySerializable &policyPrivate,
- const PolicySerializable &policyPublic)
-{
- if (0 >= m_userDataMap.count(cred.uid))
- return CKM_API_ERROR_DB_LOCKED;
-
- auto &handler = m_userDataMap[cred.uid];
- GenericKey prv, pub;
- int retCode;
-
- if (CKM_CRYPTO_CREATEKEY_SUCCESS !=
- (retCode = CryptoService::createKeyPairRSA(size, prv, pub)))
- {
- LogDebug("CryptoService error with code: " << retCode);
- return CKM_API_ERROR_SERVER_ERROR; // TODO error code
- }
-
- DBCrypto::Transaction transaction(&handler.database);
- retCode = saveDataHelper(cred,
- toDBDataType(prv.getType()),
- aliasPrivate,
- prv.getDER(),
- policyPrivate);
-
- if (CKM_API_SUCCESS != retCode)
- return retCode;
-
- retCode = saveDataHelper(cred,
- toDBDataType(pub.getType()),
- aliasPublic,
- pub.getDER(),
- policyPublic);
-
- if (CKM_API_SUCCESS != retCode)
- return retCode;
-
- transaction.commit();
-
- return retCode;
-}
-
-RawBuffer CKMLogic::createKeyPairRSA(
- Credentials &cred,
- int commandId,
- int size,
- const Alias &aliasPrivate,
- const Alias &aliasPublic,
- const PolicySerializable &policyPrivate,
- const PolicySerializable &policyPublic)
-{
- int retCode = CKM_API_SUCCESS;
-
- try {
- retCode = createKeyPairRSAHelper(
- cred,
- size,
- aliasPrivate,
- aliasPublic,
- policyPrivate,
- policyPublic);
-
- } catch (DBCrypto::Exception::AliasExists &e) {
- LogDebug("DBCrypto error: alias exists: " << e.GetMessage());
- retCode = CKM_API_ERROR_DB_ALIAS_EXISTS;
- } catch (DBCrypto::Exception::TransactionError &e) {
- LogDebug("DBCrypto error: transaction error: " << e.GetMessage());
- retCode = CKM_API_ERROR_DB_ERROR;
- } catch (DBCrypto::Exception::InternalError &e) {
- LogDebug("DBCrypto internal error: " << e.GetMessage());
- retCode = CKM_API_ERROR_DB_ERROR;
- }
-
- MessageBuffer response;
- Serialization::Serialize(response, static_cast<int>(LogicCommand::CREATE_KEY_PAIR_RSA));
- Serialization::Serialize(response, commandId);
- Serialization::Serialize(response, retCode);
-
- return response.Pop();
-}
-
-int CKMLogic::createKeyPairECDSAHelper(
- Credentials &cred,
- int type,
- const Alias &aliasPrivate,
- const Alias &aliasPublic,
- const PolicySerializable &policyPrivate,
- const PolicySerializable &policyPublic)
-{
- if (0 >= m_userDataMap.count(cred.uid))
- return CKM_API_ERROR_DB_LOCKED;
-
- auto &handler = m_userDataMap[cred.uid];
- GenericKey prv, pub;
- int retCode;
-
- if (CKM_CRYPTO_CREATEKEY_SUCCESS !=
- (retCode = CryptoService::createKeyPairECDSA(static_cast<ElipticCurve>(type), prv, pub)))
- {
- LogError("CryptoService failed with code: " << retCode);
- return CKM_API_ERROR_SERVER_ERROR; // TODO error code
- }
-
- DBCrypto::Transaction transaction(&handler.database);
-
- retCode = saveDataHelper(cred,
- toDBDataType(prv.getType()),
- aliasPrivate,
- prv.getDER(),
- policyPrivate);
-
- if (CKM_API_SUCCESS != retCode)
- return retCode;
-
- retCode = saveDataHelper(cred,
- toDBDataType(pub.getType()),
- aliasPublic,
- pub.getDER(),
- policyPublic);
-
- if (CKM_API_SUCCESS != retCode)
- return retCode;
-
- transaction.commit();
-
- return retCode;
-}
-
-RawBuffer CKMLogic::createKeyPairECDSA(
- Credentials &cred,
- int commandId,
- int type,
- const Alias &aliasPrivate,
- const Alias &aliasPublic,
- const PolicySerializable &policyPrivate,
- const PolicySerializable &policyPublic)
-{
- int retCode = CKM_API_SUCCESS;
-
- try {
- retCode = createKeyPairECDSAHelper(
- cred,
- type,
- aliasPrivate,
- aliasPublic,
- policyPrivate,
- policyPublic);
- } catch (const DBCrypto::Exception::AliasExists &e) {
- LogDebug("DBCrypto error: alias exists: " << e.GetMessage());
- retCode = CKM_API_ERROR_DB_ALIAS_EXISTS;
- } catch (const DBCrypto::Exception::TransactionError &e) {
- LogDebug("DBCrypto error: transaction error: " << e.GetMessage());
- retCode = CKM_API_ERROR_DB_ERROR;
- } catch (const DBCrypto::Exception::InternalError &e) {
- LogDebug("DBCrypto internal error: " << e.GetMessage());
- retCode = CKM_API_ERROR_DB_ERROR;
- }
-
- MessageBuffer response;
- Serialization::Serialize(response, static_cast<int>(LogicCommand::CREATE_KEY_PAIR_RSA));
- Serialization::Serialize(response, commandId);
- Serialization::Serialize(response, retCode);
-
- return response.Pop();
+ const Credentials &cred,
+ int msgId,
+ DataType dataType)
+{
+ AliasInfoVector systemVector;
+ AliasInfoVector userVector;
+ AliasInfoVector aliasInfoVector;
+
+ int retCode = unlockSystemDB();
+
+ if (CKM_API_SUCCESS == retCode) {
+ // system database
+ if (m_accessControl.isSystemService(cred)) {
+ // lookup system DB
+ retCode = getAliasInfoListHelper(Credentials(SYSTEM_DB_UID, CLIENT_ID_SYSTEM),
+ dataType,
+ systemVector);
+ } else {
+ // user - lookup system, then client DB
+ retCode = getAliasInfoListHelper(Credentials(SYSTEM_DB_UID, cred.client),
+ dataType,
+ systemVector);
+
+ // private database
+ if (retCode == CKM_API_SUCCESS) {
+ retCode = getAliasInfoListHelper(cred,
+ dataType,
+ userVector);
+ }
+ }
+ }
+
+ if (retCode == CKM_API_SUCCESS) {
+ aliasInfoVector.insert(aliasInfoVector.end(), systemVector.begin(),
+ systemVector.end());
+ aliasInfoVector.insert(aliasInfoVector.end(), userVector.begin(),
+ userVector.end());
+ }
+
+ return SerializeMessage(msgId, retCode, dataType, AliasInfoSerializableVector(aliasInfoVector));
}
-RawBuffer CKMLogic::getCertificateChain(
- Credentials &cred,
- int commandId,
- const RawBuffer &certificate,
- const RawBufferVector &untrustedRawCertVector)
+int CKMLogic::importInitialData(
+ const Name &name,
+ const Crypto::Data &data,
+ const Crypto::EncryptionParams &encParams,
+ const Policy &policy)
+{
+ try {
+ return tryRet([&] {
+ if (encParams.iv.empty() != encParams.tag.empty()) {
+ LogError("Both iv and tag must be empty or set");
+ return CKM_API_ERROR_INPUT_PARAM;
+ }
+
+ // Inital values are always imported with root credentials. Client id is not important.
+ Credentials rootCred(0, "whatever");
+ ClientId owner(CLIENT_ID_SYSTEM);
+
+ auto [dbOp, digest, retCode] = beginSaveAndGetHash(rootCred, name, owner);
+ if (retCode != CKM_API_SUCCESS)
+ return retCode;
+
+ Crypto::GStore &store = m_decider.getStore(data.type, policy, true, !encParams.iv.empty());
+
+ Token token;
+ if (encParams.iv.empty()) {
+ // Data are not encrypted, let's try to verify them
+ Crypto::Data binaryData;
+
+ if (CKM_API_SUCCESS != (retCode = toBinaryData(data, binaryData)))
+ return retCode;
+
+ token = store.import(binaryData,
+ m_accessControl.isCCMode() ? "" : policy.password,
+ encParams, digest);
+ } else {
+ token = store.import(data,
+ m_accessControl.isCCMode() ? "" : policy.password,
+ encParams, digest);
+ }
+
+ dbOp.finalize(std::move(token), policy);
+
+ return CKM_API_SUCCESS;
+ });
+ } catch (const std::exception &e) {
+ LogError("Std::exception: " << e.what());
+ return CKM_API_ERROR_SERVER_ERROR;
+ }
+}
+
+int CKMLogic::DBOperation::loadAppKey(bool keyRequired)
+{
+ if (!m_handler.crypto.haveKey(m_owner)) {
+ RawBuffer wrappedDEK;
+ auto wrappedDEKOptional = m_handler.database.getKey(m_owner);
+
+ if (!wrappedDEKOptional) {
+ if (keyRequired) {
+ LogError("No key for given owner in database");
+ return CKM_API_ERROR_DB_ERROR;
+ }
+ LogDebug("No Key in database found. Generating new one for client: " << m_owner);
+ wrappedDEK = m_handler.keyProvider.generateDEK(m_owner);
+ m_handler.database.saveKey(m_owner, wrappedDEK);
+ } else {
+ wrappedDEK = *wrappedDEKOptional;
+ }
+
+ m_handler.crypto.pushKey(m_owner, m_handler.keyProvider.getPureDEK(wrappedDEK));
+ }
+
+ return CKM_API_SUCCESS;
+}
+
+std::tuple<CKMLogic::DBOperation, int> CKMLogic::begin(
+ const Credentials &cred,
+ const Name &name,
+ const ClientId &owner)
+{
+ auto &handler = selectDatabase(cred, owner);
+ DBOperation op(handler, name, owner);
+
+ if (cred.client.empty() || !isClientValid(cred.client) ||
+ !isNameValid(name) || !isClientValid(owner))
+ return std::make_tuple(std::move(op), CKM_API_ERROR_INPUT_PARAM);
+
+ return std::make_tuple(std::move(op), CKM_API_SUCCESS);
+}
+
+std::tuple<CKMLogic::DBOperation, PermissionMask, int> CKMLogic::beginAndGetPerm(
+ const Credentials &cred,
+ const Name &name,
+ const ClientId &owner)
+{
+ PermissionMask permission = Permission::NONE;
+ auto [dbOp, retCode] = begin(cred, name, owner);
+ if (retCode == CKM_API_SUCCESS)
+ permission = toPermissionMask(dbOp.database().getPermissionRow(name, owner, cred.client));
+
+ return std::make_tuple(std::move(dbOp), permission, retCode);
+}
+
+std::tuple<CKMLogic::DBOperation, int> CKMLogic::beginSave(
+ const Credentials &cred,
+ const Name &name,
+ const ClientId &owner)
+{
+ auto [dbOp, retCode] = begin(cred, name, owner);
+ if (retCode != CKM_API_SUCCESS)
+ return std::make_tuple(std::move(dbOp), retCode);
+
+ retCode = dbOp.loadAppKey(false);
+ if (retCode != CKM_API_SUCCESS)
+ return std::make_tuple(std::move(dbOp), retCode);
+
+ // check if accessor is allowed to save owner's items
+ retCode = m_accessControl.canSave(cred, owner);
+ if (retCode != CKM_API_SUCCESS) {
+ LogDebug("accessor " << cred.client << " can not save rows owned by " << owner);
+ return std::make_tuple(std::move(dbOp), retCode);
+ }
+
+ if (dbOp.database().isNameOwnerPresent(name, owner))
+ retCode = CKM_API_ERROR_DB_ALIAS_EXISTS;
+
+ return std::make_tuple(std::move(dbOp), retCode);
+}
+
+std::tuple<CKMLogic::DBOperation, RawBuffer, int> CKMLogic::beginSaveAndGetHash(
+ const Credentials &cred,
+ const Name &name,
+ const ClientId &owner)
+{
+ RawBuffer digest;
+ auto [dbOp, retCode] = beginSave(cred, name, owner);
+ if (retCode == CKM_API_SUCCESS) {
+ digest = CryptoLogic::makeHash(name, owner, cred.clientUid);
+ if (digest.empty())
+ retCode = CKM_API_ERROR_HASH_ERROR;
+ }
+
+ return std::make_tuple(std::move(dbOp), std::move(digest), retCode);
+}
+
+RawBuffer CKMLogic::createKeyPair(
+ const Credentials &cred,
+ int msgId,
+ const CryptoAlgorithmSerializable &keyGenParams,
+ const Name &namePrv,
+ const ClientId &ownerPrv,
+ const Name &namePub,
+ const ClientId &ownerPub,
+ const PolicySerializable &policyPrv,
+ const PolicySerializable &policyPub)
+{
+ return SerializeMessage(msgId, tryRet([&] {
+ auto [dbOpPrv, digestPrv, retCodePrv] = beginSaveAndGetHash(cred, namePrv, ownerPrv);
+ if (retCodePrv != CKM_API_SUCCESS)
+ return retCodePrv;
+
+ auto [dbOpPub, digestPub, retCodePub] = beginSaveAndGetHash(cred, namePub, ownerPub);
+ if (retCodePub != CKM_API_SUCCESS)
+ return retCodePub;
+
+ if (policyPrv.backend != policyPub.backend)
+ ThrowErr(Exc::InputParam, "Error, key pair must be supported with the same backend.");
+
+ bool exportable = policyPrv.extractable || policyPub.extractable;
+ Policy lessRestricted(Password(), exportable, policyPrv.backend);
+
+ // For now any asymmetric key will do. If necessary we can extract it from keyGenParams.
+ TokenPair keys = m_decider.getStore(DataType::DB_KEY_FIRST, policyPrv, false).generateAKey(
+ keyGenParams,
+ policyPrv.password,
+ policyPub.password,
+ digestPrv, digestPub);
+
+ dbOpPrv.finalize(std::move(keys.first), policyPrv);
+ dbOpPub.finalize(std::move(keys.second), policyPub);
+
+ return CKM_API_SUCCESS;
+ }));
+}
+
+RawBuffer CKMLogic::createKeyAES(
+ const Credentials &cred,
+ int msgId,
+ const int size,
+ const Name &name,
+ const ClientId &owner,
+ const PolicySerializable &policy)
+{
+ int retCode = CKM_API_SUCCESS;
+
+ try {
+ retCode = tryRet([&] {
+ auto [dbOp, digest, retCode2] = beginSaveAndGetHash(cred, name, owner);
+ if (retCode2 != CKM_API_SUCCESS)
+ return retCode2;
+
+ // create key in store
+ CryptoAlgorithm keyGenAlgorithm;
+ keyGenAlgorithm.setParam(ParamName::ALGO_TYPE, AlgoType::AES_GEN);
+ keyGenAlgorithm.setParam(ParamName::GEN_KEY_LEN, size);
+
+ auto& store = m_decider.getStore(DataType::KEY_AES, policy, false);
+ Token key = store.generateSKey(keyGenAlgorithm, policy.password, digest);
+
+ dbOp.finalize(std::move(key), policy);
+ return CKM_API_SUCCESS;
+ });
+ } catch (std::invalid_argument &e) {
+ LogDebug("invalid argument error: " << e.what());
+ retCode = CKM_API_ERROR_INPUT_PARAM;
+ }
+
+ return SerializeMessage(msgId, retCode);
+}
+
+int CKMLogic::readCertificateHelper(
+ const Credentials &cred,
+ const OwnerNameVector &ownerNameVector,
+ CertificateImplVector &certVector)
+{
+ for (auto &i : ownerNameVector) {
+ // certificates can't be protected with custom user password
+ Crypto::GObjUPtr obj;
+ int ec;
+ ec = readDataHelper(true,
+ cred,
+ DataType::CERTIFICATE,
+ i.second,
+ cred.effectiveOwner(i.first),
+ Password(),
+ obj);
+
+ if (ec != CKM_API_SUCCESS)
+ return ec;
+
+ certVector.emplace_back(obj->getBinary(), DataFormat::FORM_DER);
+
+ // try to read chain certificates (if present)
+ Crypto::GObjUPtrVector caChainObjs;
+ ec = readDataHelper(true,
+ cred,
+ DataType::DB_CHAIN_FIRST,
+ i.second,
+ cred.effectiveOwner(i.first),
+ CKM::Password(),
+ caChainObjs);
+
+ if (ec != CKM_API_SUCCESS && ec != CKM_API_ERROR_DB_ALIAS_UNKNOWN)
+ return ec;
+
+ for (auto &caCertObj : caChainObjs)
+ certVector.emplace_back(caCertObj->getBinary(), DataFormat::FORM_DER);
+ }
+
+ return CKM_API_SUCCESS;
+}
+
+int CKMLogic::getCertificateChainHelper(
+ const CertificateImpl &cert,
+ const RawBufferVector &untrustedCertificates,
+ const RawBufferVector &trustedCertificates,
+ bool useTrustedSystemCertificates,
+ RawBufferVector &chainRawVector)
+{
+ CertificateImplVector untrustedCertVector;
+ CertificateImplVector trustedCertVector;
+ CertificateImplVector chainVector;
+
+ if (cert.empty())
+ return CKM_API_ERROR_INPUT_PARAM;
+
+ for (auto &e : untrustedCertificates) {
+ CertificateImpl c(e, DataFormat::FORM_DER);
+
+ if (c.empty())
+ return CKM_API_ERROR_INPUT_PARAM;
+
+ untrustedCertVector.push_back(std::move(c));
+ }
+
+ for (auto &e : trustedCertificates) {
+ CertificateImpl c(e, DataFormat::FORM_DER);
+
+ if (c.empty())
+ return CKM_API_ERROR_INPUT_PARAM;
+
+ trustedCertVector.push_back(std::move(c));
+ }
+
+ CertificateStore store;
+ int retCode = store.verifyCertificate(cert,
+ untrustedCertVector,
+ trustedCertVector,
+ useTrustedSystemCertificates,
+ m_accessControl.isCCMode(),
+ chainVector);
+
+ if (retCode != CKM_API_SUCCESS)
+ return retCode;
+
+ for (auto &e : chainVector)
+ chainRawVector.push_back(e.getDER());
+
+ return CKM_API_SUCCESS;
+}
+
+int CKMLogic::getCertificateChainHelper(
+ const Credentials &cred,
+ const CertificateImpl &cert,
+ const OwnerNameVector &untrusted,
+ const OwnerNameVector &trusted,
+ bool useTrustedSystemCertificates,
+ RawBufferVector &chainRawVector)
{
- (void)cred;
+ CertificateImplVector untrustedCertVector;
+ CertificateImplVector trustedCertVector;
+ CertificateImplVector chainVector;
+
+ if (cert.empty())
+ return CKM_API_ERROR_INPUT_PARAM;
- CertificateImpl cert(certificate, DataFormat::FORM_DER);
- CertificateImplVector untrustedCertVector;
- CertificateImplVector chainVector;
- RawBufferVector chainRawVector;
+ int retCode = readCertificateHelper(cred, untrusted, untrustedCertVector);
- for (auto &e: untrustedRawCertVector)
- untrustedCertVector.push_back(CertificateImpl(e, DataFormat::FORM_DER));
+ if (retCode != CKM_API_SUCCESS)
+ return retCode;
- LogDebug("Cert is empty: " << cert.empty());
+ retCode = readCertificateHelper(cred, trusted, trustedCertVector);
- int retCode = m_certStore.verifyCertificate(cert, untrustedCertVector, chainVector);
+ if (retCode != CKM_API_SUCCESS)
+ return retCode;
- if (retCode == CKM_API_SUCCESS) {
- for (auto &e : chainVector)
- chainRawVector.push_back(e.getDER());
- }
+ CertificateStore store;
+ retCode = store.verifyCertificate(cert,
+ untrustedCertVector,
+ trustedCertVector,
+ useTrustedSystemCertificates,
+ m_accessControl.isCCMode(),
+ chainVector);
- MessageBuffer response;
- Serialization::Serialize(response, static_cast<int>(LogicCommand::GET_CHAIN_CERT));
- Serialization::Serialize(response, commandId);
- Serialization::Serialize(response, retCode);
- Serialization::Serialize(response, chainRawVector);
- return response.Pop();
+ if (retCode != CKM_API_SUCCESS)
+ return retCode;
+
+ for (auto &i : chainVector)
+ chainRawVector.push_back(i.getDER());
+
+ return CKM_API_SUCCESS;
}
RawBuffer CKMLogic::getCertificateChain(
- Credentials &cred,
- int commandId,
- const RawBuffer &certificate,
- const AliasVector &aliasVector)
+ const Credentials & /*cred*/,
+ int msgId,
+ const RawBuffer &certificate,
+ const RawBufferVector &untrustedCertificates,
+ const RawBufferVector &trustedCertificates,
+ bool useTrustedSystemCertificates)
{
- (void) cred;
- (void) commandId;
- (void) certificate;
- (void) aliasVector;
+ CertificateImpl cert(certificate, DataFormat::FORM_DER);
+ RawBufferVector chainRawVector;
+ int retCode = CKM_API_ERROR_UNKNOWN;
+
+ try {
+ retCode = getCertificateChainHelper(cert,
+ untrustedCertificates,
+ trustedCertificates,
+ useTrustedSystemCertificates,
+ chainRawVector);
+ } catch (const Exc::Exception &e) {
+ retCode = e.error();
+ } catch (const std::exception &e) {
+ LogError("STD exception " << e.what());
+ retCode = CKM_API_ERROR_SERVER_ERROR;
+ } catch (...) {
+ LogError("Unknown error.");
+ }
+
+ return SerializeMessage(msgId, retCode, chainRawVector);
+}
- MessageBuffer response;
- Serialization::Serialize(response, static_cast<int>(LogicCommand::GET_CHAIN_ALIAS));
- Serialization::Serialize(response, commandId);
- Serialization::Serialize(response, static_cast<int>(CKM_API_SUCCESS));
- Serialization::Serialize(response, RawBufferVector());
- return response.Pop();
+RawBuffer CKMLogic::getCertificateChain(
+ const Credentials &cred,
+ int msgId,
+ const RawBuffer &certificate,
+ const OwnerNameVector &untrustedCertificates,
+ const OwnerNameVector &trustedCertificates,
+ bool useTrustedSystemCertificates)
+{
+ int retCode = CKM_API_ERROR_UNKNOWN;
+ CertificateImpl cert(certificate, DataFormat::FORM_DER);
+ RawBufferVector chainRawVector;
+
+ try {
+ retCode = getCertificateChainHelper(cred,
+ cert,
+ untrustedCertificates,
+ trustedCertificates,
+ useTrustedSystemCertificates,
+ chainRawVector);
+ } catch (const Exc::Exception &e) {
+ retCode = e.error();
+ } catch (const std::exception &e) {
+ LogError("STD exception " << e.what());
+ retCode = CKM_API_ERROR_SERVER_ERROR;
+ } catch (...) {
+ LogError("Unknown error.");
+ }
+
+ return SerializeMessage(msgId, retCode, chainRawVector);
}
RawBuffer CKMLogic::createSignature(
- Credentials &cred,
- int commandId,
- const Alias &privateKeyAlias,
- const std::string &password, // password for private_key
- const RawBuffer &message,
- const HashAlgorithm hash,
- const RSAPaddingAlgorithm padding)
-{
-
- DBRow row;
- CryptoService cs;
- RawBuffer signature;
-
- int retCode = CKM_API_SUCCESS;
-
- try {
- do {
- retCode = getDataHelper(cred, DBDataType::KEY_RSA_PUBLIC, privateKeyAlias, password, row);
- if (CKM_API_SUCCESS != retCode) {
- LogError("getDataHelper return error:");
- break;
- }
-
- GenericKey keyParsed(row.data, std::string());
- if (keyParsed.empty())
- retCode = CKM_API_ERROR_SERVER_ERROR;
- else
- cs.createSignature(keyParsed, message, hash, padding, signature);
- } while(0);
- } catch (const KeyProvider::Exception::Base &e) {
- LogError("KeyProvider failed with error: " << e.GetMessage());
- retCode = CKM_API_ERROR_SERVER_ERROR;
- } catch (const DBCryptoModule::Exception::Base &e) {
- LogError("DBCryptoModule failed with message: " << e.GetMessage());
- retCode = CKM_API_ERROR_SERVER_ERROR;
- } catch (const DBCrypto::Exception::Base &e) {
- LogError("DBCrypto failed with message: " << e.GetMessage());
- retCode = CKM_API_ERROR_DB_ERROR;
- }
-
- MessageBuffer response;
- Serialization::Serialize(response, static_cast<int>(LogicCommand::CREATE_SIGNATURE));
- Serialization::Serialize(response, commandId);
- Serialization::Serialize(response, retCode);
- Serialization::Serialize(response, signature);
- return response.Pop();
+ const Credentials &cred,
+ int msgId,
+ const Name &privateKeyName,
+ const ClientId &owner,
+ const Password &password, // password for private_key
+ const RawBuffer &message,
+ const CryptoAlgorithm &cryptoAlg)
+{
+ RawBuffer signature;
+
+ int retCode = CKM_API_SUCCESS;
+
+ try {
+ retCode = tryRet([&] {
+ Crypto::GObjUPtr obj;
+ int retCode2 = readDataHelper(false, cred, DataType::DB_KEY_FIRST, privateKeyName,
+ owner, password, obj);
+
+ if (retCode2 == CKM_API_SUCCESS)
+ signature = obj->sign(cryptoAlg, message);
+
+ return retCode2;
+ });
+ } catch (const std::exception &e) {
+ LogError("STD exception " << e.what());
+ retCode = CKM_API_ERROR_SERVER_ERROR;
+ }
+
+ return SerializeMessage(msgId, retCode, signature);
}
RawBuffer CKMLogic::verifySignature(
- Credentials &cred,
- int commandId,
- const Alias &publicKeyOrCertAlias,
- const std::string &password, // password for public_key (optional)
- const RawBuffer &message,
- const RawBuffer &signature,
- const HashAlgorithm hash,
- const RSAPaddingAlgorithm padding)
-{
-
- DBRow row;
- CryptoService cs;
-
- int retCode = CKM_API_ERROR_VERIFICATION_FAILED;
- try {
- do {
- retCode = getDataHelper(cred, DBDataType::KEY_RSA_PUBLIC, publicKeyOrCertAlias, password, row);
-
- if (retCode != CKM_API_SUCCESS) {
- break;
- }
-
- GenericKey keyParsed(row.data, std::string());
- if (keyParsed.empty()) {
- retCode = CKM_API_ERROR_SERVER_ERROR;
- break;
- }
-
- retCode = cs.verifySignature(keyParsed, message, signature, hash, padding);
- } while(0);
- } catch (const CryptoService::Exception::Crypto_internal &e) {
- LogError("KeyProvider failed with message: " << e.GetMessage());
- retCode = CKM_API_ERROR_SERVER_ERROR;
- } catch (const CryptoService::Exception::opensslError &e) {
- LogError("KeyProvider failed with message: " << e.GetMessage());
- retCode = CKM_API_ERROR_SERVER_ERROR;
- } catch (const KeyProvider::Exception::Base &e) {
- LogError("KeyProvider failed with error: " << e.GetMessage());
- retCode = CKM_API_ERROR_SERVER_ERROR;
- } catch (const DBCryptoModule::Exception::Base &e) {
- LogError("DBCryptoModule failed with message: " << e.GetMessage());
- retCode = CKM_API_ERROR_SERVER_ERROR;
- } catch (const DBCrypto::Exception::Base &e) {
- LogError("DBCrypto failed with message: " << e.GetMessage());
- retCode = CKM_API_ERROR_DB_ERROR;
- }
-
- MessageBuffer response;
- Serialization::Serialize(response, static_cast<int>(LogicCommand::VERIFY_SIGNATURE));
- Serialization::Serialize(response, commandId);
- Serialization::Serialize(response, retCode);
-
- return response.Pop();
+ const Credentials &cred,
+ int msgId,
+ const Name &publicKeyOrCertName,
+ const ClientId &owner,
+ const Password &password, // password for public_key (optional)
+ const RawBuffer &message,
+ const RawBuffer &signature,
+ const CryptoAlgorithm ¶ms)
+{
+ return SerializeMessage(msgId, tryRet([&] {
+ // try certificate first - looking for a public key.
+ // in case of PKCS, pub key from certificate will be found first
+ // rather than private key from the same PKCS.
+ Crypto::GObjUPtr obj;
+ int retCode = readDataHelper(false, cred, DataType::CERTIFICATE,
+ publicKeyOrCertName, owner, password, obj);
+
+ if (retCode == CKM_API_ERROR_DB_ALIAS_UNKNOWN)
+ retCode = readDataHelper(false, cred, DataType::DB_KEY_FIRST,
+ publicKeyOrCertName, owner, password, obj);
+
+ if (retCode == CKM_API_SUCCESS)
+ retCode = obj->verify(params, message, signature);
+
+ return retCode;
+ }));
}
-} // namespace CKM
+int CKMLogic::setPermissionHelper(
+ const Credentials &cred, // who's the client
+ const Name &name,
+ const ClientId &owner, // who's the owner
+ const ClientId &accessor, // who will get the access
+ const PermissionMask permissionMask)
+{
+ auto [dbOp, retCode] = beginSave(cred, name, owner);
+ // Normally, saving requires alias to be unoccupied. When changing permissions it's the opposite
+ if (retCode != CKM_API_ERROR_DB_ALIAS_EXISTS) {
+ if (retCode == CKM_API_SUCCESS)
+ retCode = CKM_API_ERROR_DB_ALIAS_UNKNOWN;
+ return retCode;
+ }
+
+ // currently we don't support modification of owner's permissions to his own rows
+ if (owner == accessor)
+ return CKM_API_ERROR_INPUT_PARAM;
+
+ // system database does not support write/remove permissions
+ if ((0 == owner.compare(CLIENT_ID_SYSTEM)) && (permissionMask & Permission::REMOVE))
+ return CKM_API_ERROR_INPUT_PARAM;
+
+ // set permissions to the row owned by owner for accessor
+ dbOp.database().setPermission(name, owner, accessor, permissionMask);
+ dbOp.transaction().commit();
+
+ return CKM_API_SUCCESS;
+}
+
+RawBuffer CKMLogic::setPermission(
+ const Credentials &cred,
+ const int msgID,
+ const Name &name,
+ const ClientId &owner,
+ const ClientId &accessor,
+ const PermissionMask permissionMask)
+{
+ return SerializeMessage(msgID, tryRet([&] {
+ return setPermissionHelper(cred, name, owner, accessor, permissionMask);
+ }));
+}
+
+RawBuffer CKMLogic::deriveKey(
+ const Credentials &cred,
+ const int msgID,
+ const CryptoAlgorithm ¶ms,
+ const Name &secretName,
+ const ClientId &secretOwner,
+ const Password &secretPassword,
+ const Name &newKeyName,
+ const ClientId &newKeyOwner,
+ const Policy &newKeyPolicy)
+{
+ return SerializeMessage(msgID, tryRet([&] {
+ // Get key/secret for internal service use. It won't be exported to the client
+ Crypto::GObjUPtr obj;
+ DataType objType;
+ int retCode = readDataHelper(false, cred, DataType::DB_KEY_FIRST,
+ secretName, secretOwner, secretPassword, obj, objType);
+ if (retCode != CKM_API_SUCCESS) {
+ if (retCode != CKM_API_ERROR_DB_ALIAS_UNKNOWN)
+ return retCode;
+
+ retCode = readDataHelper(false, cred, DataType::BINARY_DATA,
+ secretName, secretOwner, secretPassword, obj, objType);
+ if (retCode != CKM_API_SUCCESS)
+ return retCode;
+ }
+
+ auto [dbOp, digest, ret] = beginSaveAndGetHash(cred, newKeyName, newKeyOwner);
+ if (ret != CKM_API_SUCCESS)
+ return ret;
+
+ // ECDH (private key) -> binary secret, KBKDF -> symmetric key
+ DataType newKeyType = objType.isKeyPrivate() ? DataType::BINARY_DATA : DataType::KEY_AES;
+ if (!m_decider.checkStore(obj->backendId(), newKeyType, newKeyPolicy, false)) {
+ LogDebug("Can't import the derived key to backend " <<
+ static_cast<int>(obj->backendId()) << " with given policy");
+ return CKM_API_ERROR_INPUT_PARAM;
+ }
+
+ // derive
+ Token derived = obj->derive(params, newKeyPolicy.password, digest);
+
+ dbOp.finalize(std::move(derived), newKeyPolicy);
+
+ return CKM_API_SUCCESS;
+ }));
+}
+
+RawBuffer CKMLogic::importWrappedKey(
+ const Credentials &cred,
+ const int msgId,
+ const CryptoAlgorithm ¶ms,
+ const Name &wrappingKeyName,
+ const ClientId &wrappingKeyOwner,
+ const Password &wrappingKeyPassword,
+ const Name &keyName,
+ const ClientId &keyOwner,
+ const RawBuffer &wrappedKey,
+ const CKM::DataType keyType,
+ const PolicySerializable &policy)
+{
+ return SerializeMessage(msgId, tryRet([&] {
+ Crypto::GObjUPtr wrappingKey;
+
+ auto [dbOp, digest, retCode] = beginSaveAndGetHash(cred, keyName, keyOwner);
+ if (retCode != CKM_API_SUCCESS)
+ return retCode;
+
+ retCode = readDataHelper(false, cred, DataType::DB_KEY_FIRST, wrappingKeyName,
+ wrappingKeyOwner, wrappingKeyPassword, wrappingKey);
+ if (retCode != CKM_API_SUCCESS)
+ return retCode;
+
+ if (!m_decider.checkStore(wrappingKey->backendId(), keyType, policy, true)) {
+ LogDebug("Can't import the wrapped key to backend " <<
+ static_cast<int>(wrappingKey->backendId()) << " with given policy");
+ return CKM_API_ERROR_INPUT_PARAM;
+ }
+
+ Token token = wrappingKey->unwrap(params,
+ Crypto::Data(keyType, std::move(wrappedKey)),
+ policy.password,
+ digest);
+
+ dbOp.finalize(std::move(token), policy);
+
+ return retCode;
+ }));
+}
+
+RawBuffer CKMLogic::exportWrappedKey(
+ const Credentials &cred,
+ const int msgID,
+ const CryptoAlgorithm ¶ms,
+ const Name &wrappingKeyName,
+ const ClientId &wrappingKeyOwner,
+ const Password &wrappingKeyPassword,
+ const Name &keyName,
+ const ClientId &keyOwner,
+ const Password &keyPassword)
+{
+ Crypto::GObjUPtr wrappingKey;
+ DB::Row wrappedKeyRow;
+ DataType wrappedKeyType;
+ RawBuffer wrappedKey;
+
+ auto retCode = tryRet([&] {
+ auto retCode2 = readDataHelper(false, cred, DataType::DB_KEY_FIRST, wrappingKeyName,
+ wrappingKeyOwner, wrappingKeyPassword, wrappingKey);
+ if (retCode2 != CKM_API_SUCCESS)
+ return retCode2;
+
+ retCode2 = readRowHelper(false, cred, DataType::DB_KEY_FIRST, keyName,
+ keyOwner, keyPassword, wrappedKeyRow, wrappedKeyType);
+ if (retCode2 != CKM_API_SUCCESS)
+ return retCode2;
+
+ wrappedKey = wrappingKey->wrap(params, wrappedKeyRow, keyPassword);
+
+ return retCode2;
+ });
+
+ return SerializeMessage(msgID, retCode, wrappedKeyType, wrappedKey);
+}
+
+RawBuffer CKMLogic::getBackendInfo(const int msgID, BackendId backend)
+{
+ BackendInfo info;
+ auto retCode = tryRet([&] {
+ CryptoBackend cryptoBackend;
+ if (backend == BackendId::SW)
+ cryptoBackend = CryptoBackend::OpenSSL;
+ else if (backend == BackendId::TZ)
+ cryptoBackend = CryptoBackend::TrustZone;
+ else
+ return CKM_API_ERROR_INPUT_PARAM;
+
+ auto store = m_decider.getStore(cryptoBackend);
+ if (store == nullptr) {
+ LogError("Required backend is unavailable");
+ return CKM_API_ERROR_INPUT_PARAM;
+ }
+
+ info.maxChunkSize = store->maxChunkSize();
+ return CKM_API_SUCCESS;
+ });
+
+ return SerializeMessage(msgID, retCode, BackendInfoSerializable(info));
+}
+
+} // namespace CKM
projects / platform / core / security / key-manager.git / blobdiff