You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
72 lines
2.0 KiB
72 lines
2.0 KiB
/*
|
|
* Copyright 2018 The WebRTC project authors. All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license
|
|
* that can be found in the LICENSE file in the root of the source
|
|
* tree. An additional intellectual property rights grant can be found
|
|
* in the file PATENTS. All contributing project authors may
|
|
* be found in the AUTHORS file in the root of the source tree.
|
|
*/
|
|
|
|
#include "api/test/fake_frame_decryptor.h"
|
|
|
|
#include <vector>
|
|
|
|
#include "rtc_base/checks.h"
|
|
|
|
namespace webrtc {
|
|
|
|
FakeFrameDecryptor::FakeFrameDecryptor(uint8_t fake_key,
|
|
uint8_t expected_postfix_byte)
|
|
: fake_key_(fake_key), expected_postfix_byte_(expected_postfix_byte) {}
|
|
|
|
FakeFrameDecryptor::Result FakeFrameDecryptor::Decrypt(
|
|
cricket::MediaType media_type,
|
|
const std::vector<uint32_t>& csrcs,
|
|
rtc::ArrayView<const uint8_t> additional_data,
|
|
rtc::ArrayView<const uint8_t> encrypted_frame,
|
|
rtc::ArrayView<uint8_t> frame) {
|
|
if (fail_decryption_) {
|
|
return Result(Status::kFailedToDecrypt, 0);
|
|
}
|
|
|
|
RTC_CHECK_EQ(frame.size() + 1, encrypted_frame.size());
|
|
for (size_t i = 0; i < frame.size(); i++) {
|
|
frame[i] = encrypted_frame[i] ^ fake_key_;
|
|
}
|
|
|
|
if (encrypted_frame[frame.size()] != expected_postfix_byte_) {
|
|
return Result(Status::kFailedToDecrypt, 0);
|
|
}
|
|
|
|
return Result(Status::kOk, frame.size());
|
|
}
|
|
|
|
size_t FakeFrameDecryptor::GetMaxPlaintextByteSize(
|
|
cricket::MediaType media_type,
|
|
size_t encrypted_frame_size) {
|
|
return encrypted_frame_size - 1;
|
|
}
|
|
|
|
void FakeFrameDecryptor::SetFakeKey(uint8_t fake_key) {
|
|
fake_key_ = fake_key;
|
|
}
|
|
|
|
uint8_t FakeFrameDecryptor::GetFakeKey() const {
|
|
return fake_key_;
|
|
}
|
|
|
|
void FakeFrameDecryptor::SetExpectedPostfixByte(uint8_t expected_postfix_byte) {
|
|
expected_postfix_byte_ = expected_postfix_byte;
|
|
}
|
|
|
|
uint8_t FakeFrameDecryptor::GetExpectedPostfixByte() const {
|
|
return expected_postfix_byte_;
|
|
}
|
|
|
|
void FakeFrameDecryptor::SetFailDecryption(bool fail_decryption) {
|
|
fail_decryption_ = fail_decryption;
|
|
}
|
|
|
|
} // namespace webrtc
|