chromium/components/webcrypto/algorithms/aes_cbc.cc

// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/40285824): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#include <stddef.h>
#include <stdint.h>

#include <memory>

#include "base/check.h"
#include "base/numerics/safe_math.h"
#include "components/webcrypto/algorithms/aes.h"
#include "components/webcrypto/algorithms/util.h"
#include "components/webcrypto/blink_key_handle.h"
#include "components/webcrypto/status.h"
#include "crypto/openssl_util.h"
#include "third_party/blink/public/platform/web_crypto_algorithm_params.h"
#include "third_party/boringssl/src/include/openssl/aes.h"
#include "third_party/boringssl/src/include/openssl/cipher.h"

namespace webcrypto {

namespace {

const EVP_CIPHER* GetAESCipherByKeyLength(size_t key_length_bytes) { … }

Status AesCbcEncryptDecrypt(EncryptOrDecrypt cipher_operation,
                            const blink::WebCryptoAlgorithm& algorithm,
                            const blink::WebCryptoKey& key,
                            base::span<const uint8_t> data,
                            std::vector<uint8_t>* buffer) { … }

class AesCbcImplementation : public AesAlgorithm { … };

}  // namespace

std::unique_ptr<AlgorithmImplementation> CreateAesCbcImplementation() { … }

}  // namespace webcrypto