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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/payments/content/browser_binding/browser_bound_key_desktop.h"
#include <memory>
#include <vector>
#include "base/check.h"
#include "crypto/cose.h"
#include "crypto/keypair.h"
#include "crypto/signature_verifier.h"
#include "crypto/unexportable_key.h"
namespace payments {
BrowserBoundKeyDesktop::BrowserBoundKeyDesktop(
std::unique_ptr<crypto::UnexportableSigningKey> key)
: key_(std::move(key)) {
CHECK(key_->Algorithm() ==
crypto::SignatureVerifier::SignatureAlgorithm::ECDSA_SHA256 ||
key_->Algorithm() ==
crypto::SignatureVerifier::SignatureAlgorithm::RSA_PKCS1_SHA256);
}
BrowserBoundKeyDesktop::~BrowserBoundKeyDesktop() = default;
std::vector<uint8_t> BrowserBoundKeyDesktop::GetIdentifier() const {
return key_->GetWrappedKey();
}
std::vector<uint8_t> BrowserBoundKeyDesktop::Sign(
const std::vector<uint8_t>& client_data) {
return key_->SignSlowly(client_data).value_or(std::vector<uint8_t>());
}
std::vector<uint8_t> BrowserBoundKeyDesktop::GetPublicKeyAsCoseKey() const {
std::optional<crypto::keypair::PublicKey> public_key =
crypto::keypair::PublicKey::FromSubjectPublicKeyInfo(
key_->GetSubjectPublicKeyInfo());
CHECK(public_key);
return crypto::PublicKeyToCoseKey(public_key.value());
}
crypto::UnexportableSigningKey* BrowserBoundKeyDesktop::GetKeyForTesting() {
return key_.get();
}
} // namespace payments
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