blob: c0edc2a37f03525a53ed6d0543b963dcbc3340cb [file] [log] [blame]
// Copyright 2020 The Chromium OS 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 <base/macros.h>
#include <string>
#include "cryptohome/crypto_error.h"
#include "cryptohome/tpm.h"
#include "cryptohome/tpm_init.h"
#include "cryptohome/vault_keyset.pb.h"
namespace cryptohome {
class TpmAuthBlockUtils {
TpmAuthBlockUtils(Tpm* tpm, TpmInit* tpm_init);
TpmAuthBlockUtils(const TpmAuthBlockUtils&) = delete;
TpmAuthBlockUtils& operator=(const TpmAuthBlockUtils&) = delete;
// A static method which converts an error object.
static CryptoError TpmErrorToCrypto(Tpm::TpmRetryAction retry_action);
// A static method to report which errors can be recovered from with a retry.
static bool TpmErrorIsRetriable(Tpm::TpmRetryAction retry_action);
// Checks if the specified |hash| is the same as the hash for the |tpm_| used
// by the class.
bool IsTPMPubkeyHash(const std::string& hash, CryptoError* error) const;
// This checks that the TPM is ready and that the vault keyset was encrypted
// with this machine's TPM.
bool CheckTPMReadiness(const SerializedVaultKeyset& serialized,
CryptoError* error);
Tpm* tpm_;
TpmInit* tpm_init_;
} // namespace cryptohome