blob: 61cf0fd956bb0ad2b4b5142ae47a9e070e8b32fb [file] [log] [blame]
// Copyright 2017 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 <stddef.h>
#include <stdint.h>
#include <memory>
#include <vector>
#include "base/component_export.h"
#include "base/containers/span.h"
#include "base/macros.h"
#include "base/optional.h"
#include "device/fido/fido_constants.h"
namespace device {
class PublicKey;
class COMPONENT_EXPORT(DEVICE_FIDO) AttestedCredentialData {
// Parses an |AttestedCredentialData| from a prefix of |*buffer|. Returns
// nullopt on error, or else the parse return and a (possibly empty) suffix of
// |buffer| that was not parsed.
static base::Optional<
std::pair<AttestedCredentialData, base::span<const uint8_t>>>
ConsumeFromCtapResponse(base::span<const uint8_t> buffer);
static base::Optional<AttestedCredentialData> CreateFromU2fRegisterResponse(
base::span<const uint8_t> u2f_data,
std::unique_ptr<PublicKey> public_key);
// Moveable.
AttestedCredentialData(AttestedCredentialData&& other);
AttestedCredentialData& operator=(AttestedCredentialData&& other);
const std::vector<uint8_t>& credential_id() const { return credential_id_; }
// Returns true iff the AAGUID is all zero bytes.
bool IsAaguidZero() const;
// Invoked when sending "none" attestation statement to the relying party.
// Replaces AAGUID with zero bytes.
void DeleteAaguid();
// Produces a byte array consisting of:
// * AAGUID (16 bytes)
// * Len (2 bytes)
// * Credential Id (Len bytes)
// * Credential Public Key.
std::vector<uint8_t> SerializeAsBytes() const;
base::span<const uint8_t, kAaguidLength> aaguid,
base::span<const uint8_t, kCredentialIdLengthLength> credential_id_length,
std::vector<uint8_t> credential_id,
std::unique_ptr<PublicKey> public_key);
// The 16-byte AAGUID of the authenticator.
std::array<uint8_t, kAaguidLength> aaguid_;
// Big-endian length of the credential (i.e. key handle).
std::array<uint8_t, kCredentialIdLengthLength> credential_id_length_;
std::vector<uint8_t> credential_id_;
std::unique_ptr<PublicKey> public_key_;
} // namespace device