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69 lines
2.2 KiB
69 lines
2.2 KiB
// |
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// Copyright (C) 2015 The Android Open Source Project |
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// |
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// Licensed under the Apache License, Version 2.0 (the "License"); |
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// you may not use this file except in compliance with the License. |
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// You may obtain a copy of the License at |
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// |
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// http://www.apache.org/licenses/LICENSE-2.0 |
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// |
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// Unless required by applicable law or agreed to in writing, software |
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// distributed under the License is distributed on an "AS IS" BASIS, |
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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// See the License for the specific language governing permissions and |
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// limitations under the License. |
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// |
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#include "trunks/hmac_session_impl.h" |
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#include <string> |
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#include <base/logging.h> |
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#include <base/macros.h> |
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#include <base/stl_util.h> |
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#include <openssl/rand.h> |
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namespace trunks { |
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HmacSessionImpl::HmacSessionImpl(const TrunksFactory& factory) |
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: factory_(factory) { |
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session_manager_ = factory_.GetSessionManager(); |
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} |
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HmacSessionImpl::~HmacSessionImpl() { |
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session_manager_->CloseSession(); |
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} |
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AuthorizationDelegate* HmacSessionImpl::GetDelegate() { |
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if (session_manager_->GetSessionHandle() == kUninitializedHandle) { |
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return nullptr; |
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} |
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return &hmac_delegate_; |
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} |
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TPM_RC HmacSessionImpl::StartBoundSession( |
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TPMI_DH_ENTITY bind_entity, |
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const std::string& bind_authorization_value, |
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bool enable_encryption) { |
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return session_manager_->StartSession(TPM_SE_HMAC, bind_entity, |
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bind_authorization_value, |
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enable_encryption, &hmac_delegate_); |
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} |
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TPM_RC HmacSessionImpl::StartUnboundSession(bool enable_encryption) { |
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// Starting an unbound session is the same as starting a session bound to |
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// TPM_RH_NULL. In this case, the authorization is the zero length buffer. |
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// We can therefore simply call StartBoundSession with TPM_RH_NULL as the |
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// binding entity, and the empty string as the authorization. |
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return StartBoundSession(TPM_RH_NULL, "", enable_encryption); |
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} |
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void HmacSessionImpl::SetEntityAuthorizationValue(const std::string& value) { |
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hmac_delegate_.set_entity_authorization_value(value); |
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} |
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void HmacSessionImpl::SetFutureAuthorizationValue(const std::string& value) { |
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hmac_delegate_.set_future_authorization_value(value); |
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} |
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} // namespace trunks
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