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Unified Diff: net/quic/crypto/aead_base_decrypter_openssl.cc

Issue 992733002: Remove //net (except for Android test stuff) and sdch (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 5 years, 9 months ago
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Index: net/quic/crypto/aead_base_decrypter_openssl.cc
diff --git a/net/quic/crypto/aead_base_decrypter_openssl.cc b/net/quic/crypto/aead_base_decrypter_openssl.cc
deleted file mode 100644
index 23116408fa787dff2360bf2293ae0c62da29b150..0000000000000000000000000000000000000000
--- a/net/quic/crypto/aead_base_decrypter_openssl.cc
+++ /dev/null
@@ -1,137 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "net/quic/crypto/aead_base_decrypter.h"
-
-#include <openssl/err.h>
-#include <openssl/evp.h>
-
-#include "base/memory/scoped_ptr.h"
-
-using base::StringPiece;
-
-namespace net {
-
-namespace {
-
-// Clear OpenSSL error stack.
-void ClearOpenSslErrors() {
- while (ERR_get_error()) {}
-}
-
-// In debug builds only, log OpenSSL error stack. Then clear OpenSSL error
-// stack.
-void DLogOpenSslErrors() {
-#ifdef NDEBUG
- ClearOpenSslErrors();
-#else
- while (unsigned long error = ERR_get_error()) {
- char buf[120];
- ERR_error_string_n(error, buf, arraysize(buf));
- DLOG(ERROR) << "OpenSSL error: " << buf;
- }
-#endif
-}
-
-} // namespace
-
-AeadBaseDecrypter::AeadBaseDecrypter(const EVP_AEAD* aead_alg,
- size_t key_size,
- size_t auth_tag_size,
- size_t nonce_prefix_size)
- : aead_alg_(aead_alg),
- key_size_(key_size),
- auth_tag_size_(auth_tag_size),
- nonce_prefix_size_(nonce_prefix_size) {
- DCHECK_LE(key_size_, sizeof(key_));
- DCHECK_LE(nonce_prefix_size_, sizeof(nonce_prefix_));
-}
-
-AeadBaseDecrypter::~AeadBaseDecrypter() {}
-
-bool AeadBaseDecrypter::SetKey(StringPiece key) {
- DCHECK_EQ(key.size(), key_size_);
- if (key.size() != key_size_) {
- return false;
- }
- memcpy(key_, key.data(), key.size());
-
- EVP_AEAD_CTX_cleanup(ctx_.get());
- if (!EVP_AEAD_CTX_init(ctx_.get(), aead_alg_, key_, key_size_,
- auth_tag_size_, nullptr)) {
- DLogOpenSslErrors();
- return false;
- }
-
- return true;
-}
-
-bool AeadBaseDecrypter::SetNoncePrefix(StringPiece nonce_prefix) {
- DCHECK_EQ(nonce_prefix.size(), nonce_prefix_size_);
- if (nonce_prefix.size() != nonce_prefix_size_) {
- return false;
- }
- memcpy(nonce_prefix_, nonce_prefix.data(), nonce_prefix.size());
- return true;
-}
-
-bool AeadBaseDecrypter::Decrypt(StringPiece nonce,
- const StringPiece& associated_data,
- const StringPiece& ciphertext,
- uint8* output,
- size_t* output_length,
- size_t max_output_length) {
- if (ciphertext.length() < auth_tag_size_ ||
- nonce.size() != nonce_prefix_size_ + sizeof(QuicPacketSequenceNumber)) {
- return false;
- }
-
- if (!EVP_AEAD_CTX_open(
- ctx_.get(), output, output_length, max_output_length,
- reinterpret_cast<const uint8_t*>(nonce.data()), nonce.size(),
- reinterpret_cast<const uint8_t*>(ciphertext.data()),
- ciphertext.size(),
- reinterpret_cast<const uint8_t*>(associated_data.data()),
- associated_data.size())) {
- // Because QuicFramer does trial decryption, decryption errors are expected
- // when encryption level changes. So we don't log decryption errors.
- ClearOpenSslErrors();
- return false;
- }
- return true;
-}
-
-bool AeadBaseDecrypter::DecryptPacket(QuicPacketSequenceNumber sequence_number,
- const StringPiece& associated_data,
- const StringPiece& ciphertext,
- char* output,
- size_t* output_length,
- size_t max_output_length) {
- if (ciphertext.length() < auth_tag_size_) {
- return false;
- }
-
- uint8 nonce[sizeof(nonce_prefix_) + sizeof(sequence_number)];
- const size_t nonce_size = nonce_prefix_size_ + sizeof(sequence_number);
- DCHECK_LE(nonce_size, sizeof(nonce));
- memcpy(nonce, nonce_prefix_, nonce_prefix_size_);
- memcpy(nonce + nonce_prefix_size_, &sequence_number, sizeof(sequence_number));
- return Decrypt(StringPiece(reinterpret_cast<char*>(nonce), nonce_size),
- associated_data, ciphertext, reinterpret_cast<uint8*>(output),
- output_length, max_output_length);
-}
-
-StringPiece AeadBaseDecrypter::GetKey() const {
- return StringPiece(reinterpret_cast<const char*>(key_), key_size_);
-}
-
-StringPiece AeadBaseDecrypter::GetNoncePrefix() const {
- if (nonce_prefix_size_ == 0) {
- return StringPiece();
- }
- return StringPiece(reinterpret_cast<const char*>(nonce_prefix_),
- nonce_prefix_size_);
-}
-
-} // namespace net
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