diff --git a/staging/security/see/hwcrypto/aidl/aidl_api/android.hardware.security.see/current/android/hardware/security/see/hwcrypto/CryptoOperation.aidl b/staging/security/see/hwcrypto/aidl/aidl_api/android.hardware.security.see/current/android/hardware/security/see/hwcrypto/CryptoOperation.aidl
index b04dc32..0a7e7a2 100644
--- a/staging/security/see/hwcrypto/aidl/aidl_api/android.hardware.security.see/current/android/hardware/security/see/hwcrypto/CryptoOperation.aidl
+++ b/staging/security/see/hwcrypto/aidl/aidl_api/android.hardware.security.see/current/android/hardware/security/see/hwcrypto/CryptoOperation.aidl
@@ -34,7 +34,7 @@
 package android.hardware.security.see.hwcrypto;
 union CryptoOperation {
   android.hardware.security.see.hwcrypto.MemoryBufferParameter setMemoryBuffer;
-  android.hardware.security.see.hwcrypto.types.Void setOperationParameters;
+  android.hardware.security.see.hwcrypto.OperationParameters setOperationParameters;
   android.hardware.security.see.hwcrypto.PatternParameters setPattern;
   android.hardware.security.see.hwcrypto.types.OperationData copyData;
   android.hardware.security.see.hwcrypto.types.OperationData aadInput;
diff --git a/staging/security/see/hwcrypto/aidl/aidl_api/android.hardware.security.see/current/android/hardware/security/see/hwcrypto/OperationParameters.aidl b/staging/security/see/hwcrypto/aidl/aidl_api/android.hardware.security.see/current/android/hardware/security/see/hwcrypto/OperationParameters.aidl
new file mode 100644
index 0000000..f35fe45
--- /dev/null
+++ b/staging/security/see/hwcrypto/aidl/aidl_api/android.hardware.security.see/current/android/hardware/security/see/hwcrypto/OperationParameters.aidl
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2024 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.security.see.hwcrypto;
+union OperationParameters {
+  android.hardware.security.see.hwcrypto.types.SymmetricAuthOperationParameters symmetricAuthCrypto;
+}
diff --git a/staging/security/see/hwcrypto/aidl/aidl_api/android.hardware.security.see/current/android/hardware/security/see/hwcrypto/types/AesGcmMode.aidl b/staging/security/see/hwcrypto/aidl/aidl_api/android.hardware.security.see/current/android/hardware/security/see/hwcrypto/types/AesGcmMode.aidl
new file mode 100644
index 0000000..4084abb
--- /dev/null
+++ b/staging/security/see/hwcrypto/aidl/aidl_api/android.hardware.security.see/current/android/hardware/security/see/hwcrypto/types/AesGcmMode.aidl
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2024 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.security.see.hwcrypto.types;
+union AesGcmMode {
+  android.hardware.security.see.hwcrypto.types.AesGcmMode.AesGcmModeParameters gcmTag16;
+  parcelable AesGcmModeParameters {
+    byte[12] nonce;
+  }
+}
diff --git a/staging/security/see/hwcrypto/aidl/aidl_api/android.hardware.security.see/current/android/hardware/security/see/hwcrypto/types/SymmetricAuthCryptoParameters.aidl b/staging/security/see/hwcrypto/aidl/aidl_api/android.hardware.security.see/current/android/hardware/security/see/hwcrypto/types/SymmetricAuthCryptoParameters.aidl
new file mode 100644
index 0000000..d3d1763
--- /dev/null
+++ b/staging/security/see/hwcrypto/aidl/aidl_api/android.hardware.security.see/current/android/hardware/security/see/hwcrypto/types/SymmetricAuthCryptoParameters.aidl
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2024 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.security.see.hwcrypto.types;
+union SymmetricAuthCryptoParameters {
+  android.hardware.security.see.hwcrypto.types.AesGcmMode aes;
+}
diff --git a/staging/security/see/hwcrypto/aidl/aidl_api/android.hardware.security.see/current/android/hardware/security/see/hwcrypto/types/SymmetricAuthOperationParameters.aidl b/staging/security/see/hwcrypto/aidl/aidl_api/android.hardware.security.see/current/android/hardware/security/see/hwcrypto/types/SymmetricAuthOperationParameters.aidl
new file mode 100644
index 0000000..8a8ef09
--- /dev/null
+++ b/staging/security/see/hwcrypto/aidl/aidl_api/android.hardware.security.see/current/android/hardware/security/see/hwcrypto/types/SymmetricAuthOperationParameters.aidl
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2024 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.security.see.hwcrypto.types;
+parcelable SymmetricAuthOperationParameters {
+  android.hardware.security.see.hwcrypto.IOpaqueKey key;
+  android.hardware.security.see.hwcrypto.types.SymmetricOperation direction;
+  android.hardware.security.see.hwcrypto.types.SymmetricAuthCryptoParameters parameters;
+}
diff --git a/staging/security/see/hwcrypto/aidl/aidl_api/android.hardware.security.see/current/android/hardware/security/see/hwcrypto/types/SymmetricOperation.aidl b/staging/security/see/hwcrypto/aidl/aidl_api/android.hardware.security.see/current/android/hardware/security/see/hwcrypto/types/SymmetricOperation.aidl
new file mode 100644
index 0000000..1a17525
--- /dev/null
+++ b/staging/security/see/hwcrypto/aidl/aidl_api/android.hardware.security.see/current/android/hardware/security/see/hwcrypto/types/SymmetricOperation.aidl
@@ -0,0 +1,38 @@
+/*
+ * Copyright 2024 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.security.see.hwcrypto.types;
+enum SymmetricOperation {
+  ENCRYPT,
+  DECRYPT,
+}
diff --git a/staging/security/see/hwcrypto/aidl/android/hardware/security/see/hwcrypto/CryptoOperation.aidl b/staging/security/see/hwcrypto/aidl/android/hardware/security/see/hwcrypto/CryptoOperation.aidl
index c78eb44..2fdbc78 100644
--- a/staging/security/see/hwcrypto/aidl/android/hardware/security/see/hwcrypto/CryptoOperation.aidl
+++ b/staging/security/see/hwcrypto/aidl/android/hardware/security/see/hwcrypto/CryptoOperation.aidl
@@ -16,6 +16,7 @@
 package android.hardware.security.see.hwcrypto;
 
 import android.hardware.security.see.hwcrypto.MemoryBufferParameter;
+import android.hardware.security.see.hwcrypto.OperationParameters;
 import android.hardware.security.see.hwcrypto.PatternParameters;
 import android.hardware.security.see.hwcrypto.types.OperationData;
 import android.hardware.security.see.hwcrypto.types.Void;
@@ -36,7 +37,7 @@
      * Sets the parameters for the current operation, for more info on specific parameters see
      * <code>OperationParameters</code>.
      */
-    Void setOperationParameters;
+    OperationParameters setOperationParameters;
 
     /*
      * Sets the pattern for a decrypt type operation. A pattern is used to describe that the Input
diff --git a/staging/security/see/hwcrypto/aidl/android/hardware/security/see/hwcrypto/OperationParameters.aidl b/staging/security/see/hwcrypto/aidl/android/hardware/security/see/hwcrypto/OperationParameters.aidl
new file mode 100644
index 0000000..bf1f055
--- /dev/null
+++ b/staging/security/see/hwcrypto/aidl/android/hardware/security/see/hwcrypto/OperationParameters.aidl
@@ -0,0 +1,28 @@
+/*
+ * Copyright 2024 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.
+ */
+package android.hardware.security.see.hwcrypto;
+
+import android.hardware.security.see.hwcrypto.types.SymmetricAuthOperationParameters;
+
+/*
+ * Type that describes the parameters for the different operations that can be performed.
+ */
+union OperationParameters {
+    /*
+     * Parameters for authenticated symmetric cryptography (AES GCM).
+     */
+    SymmetricAuthOperationParameters symmetricAuthCrypto;
+}
diff --git a/staging/security/see/hwcrypto/aidl/android/hardware/security/see/hwcrypto/types/AesGcmMode.aidl b/staging/security/see/hwcrypto/aidl/android/hardware/security/see/hwcrypto/types/AesGcmMode.aidl
new file mode 100644
index 0000000..4025553
--- /dev/null
+++ b/staging/security/see/hwcrypto/aidl/android/hardware/security/see/hwcrypto/types/AesGcmMode.aidl
@@ -0,0 +1,33 @@
+/*
+ * Copyright 2024 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.
+ */
+package android.hardware.security.see.hwcrypto.types;
+
+/*
+ * Type used for the parameters needed to run an authenticated AES operation (GCM).
+ */
+union AesGcmMode {
+    parcelable AesGcmModeParameters {
+        /*
+         * Galois Counter Mode nonce. Only 12-bytes nonce are supported.
+         */
+        byte[12] nonce;
+    }
+
+    /*
+     * Galois Counter Mode with an authentication Tag that has a length of 16 bytes.
+     */
+    AesGcmModeParameters gcmTag16;
+}
diff --git a/staging/security/see/hwcrypto/aidl/android/hardware/security/see/hwcrypto/types/SymmetricAuthCryptoParameters.aidl b/staging/security/see/hwcrypto/aidl/android/hardware/security/see/hwcrypto/types/SymmetricAuthCryptoParameters.aidl
new file mode 100644
index 0000000..278e48d
--- /dev/null
+++ b/staging/security/see/hwcrypto/aidl/android/hardware/security/see/hwcrypto/types/SymmetricAuthCryptoParameters.aidl
@@ -0,0 +1,28 @@
+/*
+ * Copyright 2024 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.
+ */
+package android.hardware.security.see.hwcrypto.types;
+
+import android.hardware.security.see.hwcrypto.types.AesGcmMode;
+
+/*
+ * Data needed to perform authenticated symmetric cryptographic operations.
+ */
+union SymmetricAuthCryptoParameters {
+    /*
+     * AES (Advanced Encryption Standard) GCM parameters.
+     */
+    AesGcmMode aes;
+}
diff --git a/staging/security/see/hwcrypto/aidl/android/hardware/security/see/hwcrypto/types/SymmetricAuthOperationParameters.aidl b/staging/security/see/hwcrypto/aidl/android/hardware/security/see/hwcrypto/types/SymmetricAuthOperationParameters.aidl
new file mode 100644
index 0000000..46568c3
--- /dev/null
+++ b/staging/security/see/hwcrypto/aidl/android/hardware/security/see/hwcrypto/types/SymmetricAuthOperationParameters.aidl
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2024 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.
+ */
+package android.hardware.security.see.hwcrypto.types;
+
+import android.hardware.security.see.hwcrypto.IOpaqueKey;
+import android.hardware.security.see.hwcrypto.types.SymmetricAuthCryptoParameters;
+import android.hardware.security.see.hwcrypto.types.SymmetricOperation;
+
+/*
+ * Parameters needed to perform an authenticated symmetric cryptographic operation. Currently only
+ * AES-GCM is supported.
+ */
+parcelable SymmetricAuthOperationParameters {
+    /*
+     * Key to be used on the operation.
+     */
+    IOpaqueKey key;
+
+    /*
+     * Encryption or Decryption.
+     */
+    SymmetricOperation direction;
+
+    /*
+     * Parameters that specify the desired authenticated cryptographic operation.
+     */
+    SymmetricAuthCryptoParameters parameters;
+}
diff --git a/staging/security/see/hwcrypto/aidl/android/hardware/security/see/hwcrypto/types/SymmetricOperation.aidl b/staging/security/see/hwcrypto/aidl/android/hardware/security/see/hwcrypto/types/SymmetricOperation.aidl
new file mode 100644
index 0000000..2717472
--- /dev/null
+++ b/staging/security/see/hwcrypto/aidl/android/hardware/security/see/hwcrypto/types/SymmetricOperation.aidl
@@ -0,0 +1,21 @@
+/*
+ * Copyright 2024 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.
+ */
+package android.hardware.security.see.hwcrypto.types;
+
+/*
+ * Enum describing the type of symmetric operation desired.
+ */
+enum SymmetricOperation { ENCRYPT, DECRYPT }