diff --git a/identity/Session.h b/identity/Session.h
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--- /dev/null
+++ b/identity/Session.h
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+/*
+ * Copyright (c) 2021, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SYSTEM_SECURITY_PRESENTATION_H_
+#define SYSTEM_SECURITY_PRESENTATION_H_
+
+#include <string>
+#include <vector>
+
+#include <android/security/identity/BnSession.h>
+
+#include <android/hardware/identity/IPresentationSession.h>
+
+#include <android/hardware/identity/IIdentityCredentialStore.h>
+
+#include "CredentialStore.h"
+
+namespace android {
+namespace security {
+namespace identity {
+
+using ::android::sp;
+using ::android::binder::Status;
+using ::std::string;
+using ::std::vector;
+
+using ::android::hardware::identity::CipherSuite;
+using ::android::hardware::identity::HardwareInformation;
+using ::android::hardware::identity::IIdentityCredential;
+using ::android::hardware::identity::IIdentityCredentialStore;
+using ::android::hardware::identity::IPresentationSession;
+using ::android::hardware::identity::RequestDataItem;
+using ::android::hardware::identity::RequestNamespace;
+
+class Session : public BnSession {
+  public:
+    Session(int32_t cipherSuite, sp<IPresentationSession> halBinder, sp<CredentialStore> store)
+        : cipherSuite_(cipherSuite), halBinder_(halBinder), store_(store) {}
+
+    bool initialize();
+
+    // ISession overrides
+    Status getEphemeralKeyPair(vector<uint8_t>* _aidl_return) override;
+
+    Status setReaderEphemeralPublicKey(const vector<uint8_t>& publicKey) override;
+
+    Status setSessionTranscript(const vector<uint8_t>& sessionTranscript) override;
+
+    Status getAuthChallenge(int64_t* _aidl_return) override;
+
+    Status getCredentialForPresentation(const string& credentialName,
+                                        sp<ICredential>* _aidl_return) override;
+
+  private:
+    int32_t cipherSuite_;
+    sp<IPresentationSession> halBinder_;
+    sp<CredentialStore> store_;
+};
+
+}  // namespace identity
+}  // namespace security
+}  // namespace android
+
+#endif  // SYSTEM_SECURITY_SESSION_H_