blob: f5b0d11a75cee35a8c02d2ccb481c23e4439d875 [file] [log] [blame]
// Copyright 2014 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 "chrome/browser/extensions/api/easy_unlock_private/easy_unlock_private_crypto_delegate.h"
#include "chromeos/dbus/dbus_thread_manager.h"
#include "chromeos/dbus/easy_unlock_client.h"
#include "third_party/cros_system_api/dbus/service_constants.h"
namespace extensions {
namespace api {
namespace {
// Converts encryption type to a string representation used by EasyUnlock dbus
// client.
std::string EncryptionTypeToString(easy_unlock_private::EncryptionType type) {
switch (type) {
case easy_unlock_private::ENCRYPTION_TYPE_AES_256_CBC:
return easy_unlock::kEncryptionTypeAES256CBC;
default:
return easy_unlock::kEncryptionTypeNone;
}
}
// Converts signature type to a string representation used by EasyUnlock dbus
// client.
std::string SignatureTypeToString(easy_unlock_private::SignatureType type) {
switch (type) {
case easy_unlock_private::SIGNATURE_TYPE_ECDSA_P256_SHA256:
return easy_unlock::kSignatureTypeECDSAP256SHA256;
case easy_unlock_private::SIGNATURE_TYPE_HMAC_SHA256:
// Fall through to default.
default:
return easy_unlock::kSignatureTypeHMACSHA256;
}
}
// ChromeOS specific EasyUnlockPrivateCryptoDelegate implementation.
class EasyUnlockPrivateCryptoDelegateChromeOS
: public extensions::api::EasyUnlockPrivateCryptoDelegate {
public:
EasyUnlockPrivateCryptoDelegateChromeOS()
: dbus_client_(
chromeos::DBusThreadManager::Get()->GetEasyUnlockClient()) {
}
virtual ~EasyUnlockPrivateCryptoDelegateChromeOS() {}
virtual void GenerateEcP256KeyPair(const KeyPairCallback& callback) OVERRIDE {
dbus_client_->GenerateEcP256KeyPair(callback);
}
virtual void PerformECDHKeyAgreement(const std::string& private_key,
const std::string& public_key,
const DataCallback& callback) OVERRIDE {
dbus_client_->PerformECDHKeyAgreement(private_key, public_key, callback);
}
virtual void CreateSecureMessage(
const std::string& payload,
const std::string& key,
const std::string& associated_data,
const std::string& public_metadata,
const std::string& verification_key_id,
easy_unlock_private::EncryptionType encryption_type,
easy_unlock_private::SignatureType signature_type,
const DataCallback& callback) OVERRIDE {
dbus_client_->CreateSecureMessage(payload,
key,
associated_data,
public_metadata,
verification_key_id,
EncryptionTypeToString(encryption_type),
SignatureTypeToString(signature_type),
callback);
}
virtual void UnwrapSecureMessage(
const std::string& message,
const std::string& key,
const std::string& associated_data,
easy_unlock_private::EncryptionType encryption_type,
easy_unlock_private::SignatureType signature_type,
const DataCallback& callback) OVERRIDE {
dbus_client_->UnwrapSecureMessage(message,
key,
associated_data,
EncryptionTypeToString(encryption_type),
SignatureTypeToString(signature_type),
callback);
}
private:
chromeos::EasyUnlockClient* dbus_client_;
DISALLOW_COPY_AND_ASSIGN(EasyUnlockPrivateCryptoDelegateChromeOS);
};
} // namespace
// static
scoped_ptr<EasyUnlockPrivateCryptoDelegate>
EasyUnlockPrivateCryptoDelegate::Create() {
return scoped_ptr<EasyUnlockPrivateCryptoDelegate>(
new EasyUnlockPrivateCryptoDelegateChromeOS());
}
} // namespace api
} // namespace extensions