blob: 93169f0180f8e96e3628e3024416850d14304382 [file] [log] [blame]
/*
* Copyright (c) 2018-2022, Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*
*/
#ifndef PSA_INITIAL_ATTESTATION_H
#define PSA_INITIAL_ATTESTATION_H
#include <limits.h>
#include <stddef.h>
#include <stdint.h>
#include "psa/error.h"
/*
* Initial attestation API version is: 1.0.0
*/
#define PSA_INITIAL_ATTEST_API_VERSION_MAJOR (1)
#define PSA_INITIAL_ATTEST_API_VERSION_MINOR (0)
/* The allowed size of input challenge in bytes. */
#define PSA_INITIAL_ATTEST_CHALLENGE_SIZE_32 32U
#define PSA_INITIAL_ATTEST_CHALLENGE_SIZE_48 48U
#define PSA_INITIAL_ATTEST_CHALLENGE_SIZE_64 64U
/* Initial Attestation message types that distinguish Attest services. */
#define RSS_ATTEST_GET_TOKEN 1001U
#define RSS_ATTEST_GET_TOKEN_SIZE 1002U
#define RSS_ATTEST_GET_DELEGATED_KEY 1003U
/**
* Get the platform attestation token.
*
* auth_challenge Pointer to buffer where challenge input is stored. This
* must be the hash of the public part of the delegated
* attestation key.
* challenge_size Size of challenge object in bytes.
* token_buf Pointer to the buffer where attestation token will be
* stored.
* token_buf_size Size of allocated buffer for token, in bytes.
* token_size Size of the token that has been returned, in bytes.
*
* Returns error code as specified in psa_status_t.
*/
psa_status_t
psa_initial_attest_get_token(const uint8_t *auth_challenge,
size_t challenge_size,
uint8_t *token_buf,
size_t token_buf_size,
size_t *token_size);
#endif /* PSA_INITIAL_ATTESTATION_H */