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// Copyright 2015 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/p2p/quic_p2p_crypto_config.h"
#include "net/quic/crypto/crypto_handshake.h"
#include "net/quic/crypto/crypto_utils.h"
namespace net {
QuicP2PCryptoConfig::QuicP2PCryptoConfig(const std::string& shared_key)
: shared_key_(shared_key) {}
QuicP2PCryptoConfig::~QuicP2PCryptoConfig() {}
bool QuicP2PCryptoConfig::GetNegotiatedParameters(
Perspective perspective,
QuicCryptoNegotiatedParameters* out_params) {
out_params->forward_secure_premaster_secret = shared_key_;
out_params->aead = aead_;
out_params->hkdf_input_suffix = hkdf_input_suffix_;
std::string hkdf_input;
const size_t label_len = strlen(QuicCryptoConfig::kForwardSecureLabel) + 1;
hkdf_input.reserve(label_len + out_params->hkdf_input_suffix.size());
hkdf_input.append(QuicCryptoConfig::kForwardSecureLabel, label_len);
hkdf_input.append(out_params->hkdf_input_suffix);
if (!CryptoUtils::DeriveKeys(
out_params->forward_secure_premaster_secret, out_params->aead,
out_params->client_nonce, out_params->server_nonce, hkdf_input,
perspective, CryptoUtils::Diversification::Never(),
&out_params->forward_secure_crypters, &out_params->subkey_secret)) {
return false;
}
return true;
}
} // namespace net
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