49 lines
1.7 KiB
C++
49 lines
1.7 KiB
C++
//
|
|
// Copyright (C) 2020 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.
|
|
|
|
#pragma once
|
|
|
|
#include <keymaster/android_keymaster_utils.h>
|
|
#include <tss2/tss2_esys.h>
|
|
|
|
#include "host/commands/secure_env/tpm_auth.h"
|
|
|
|
namespace cuttlefish {
|
|
|
|
/**
|
|
* Encrypt `data_in` to `data_out`, which are both buffers of size `data_size`.
|
|
*
|
|
* There are no integrity guarantees on this data: if the encrypted data is
|
|
* corrupted, decrypting it could either fail or produce corrupted output.
|
|
*
|
|
* `iv` should be generated randomly, and can be stored unencrypted next to
|
|
* the plaintext.
|
|
*/
|
|
bool TpmEncrypt(ESYS_CONTEXT* esys, ESYS_TR key_handle, TpmAuth auth,
|
|
const TPM2B_IV& iv, uint8_t* data_in, uint8_t* data_out,
|
|
size_t data_size);
|
|
|
|
/**
|
|
* Decrypt `data_in` to `data_out`, which are both buffers of size `data_size`.
|
|
*
|
|
* There are no integrity guarantees on this data: if the encrypted data is
|
|
* corrupted, decrypting it could either fail or produce corrupted output.
|
|
*/
|
|
bool TpmDecrypt(ESYS_CONTEXT* esys, ESYS_TR key_handle, TpmAuth auth,
|
|
const TPM2B_IV& iv, uint8_t* data_in, uint8_t* data_out,
|
|
size_t data_size);
|
|
|
|
} // namespace cuttlefish
|