blob: b8c74268dfa6f2815715a8d2821687c666e7243f [file] [log] [blame]
/*
* Copyright (c) 2023, Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*
*/
#ifndef RSS_CRYPTO_DEFS_H
#define RSS_CRYPTO_DEFS_H
/* Declares types that encode errors, algorithms, key types, policies, etc. */
#include "psa/crypto_types.h"
/*
* Value identifying export public key function API, used to dispatch the request
* to the corresponding API implementation in the Crypto service backend.
*
*/
#define RSS_CRYPTO_EXPORT_PUBLIC_KEY_SID (uint16_t)(0x701)
/*
* The persistent key identifiers for RSS builtin keys.
*/
enum rss_key_id_builtin_t {
RSS_BUILTIN_KEY_ID_HOST_S_ROTPK = 0x7FFF816Cu,
RSS_BUILTIN_KEY_ID_HOST_NS_ROTPK,
RSS_BUILTIN_KEY_ID_HOST_CCA_ROTPK,
};
/*
* This type is used to overcome a limitation within RSS firmware in the number of maximum
* IOVECs it can use especially in psa_aead_encrypt and psa_aead_decrypt.
*/
#define RSS_CRYPTO_MAX_NONCE_LENGTH (16u)
struct rss_crypto_aead_pack_input {
uint8_t nonce[RSS_CRYPTO_MAX_NONCE_LENGTH];
uint32_t nonce_length;
};
/*
* Structure used to pack non-pointer types in a call
*/
struct rss_crypto_pack_iovec {
psa_key_id_t key_id; /* Key id */
psa_algorithm_t alg; /* Algorithm */
uint32_t op_handle; /* Frontend context handle associated
to a multipart operation */
uint32_t capacity; /* Key derivation capacity */
uint32_t ad_length; /* Additional Data length for multipart AEAD */
uint32_t plaintext_length; /* Plaintext length for multipart AEAD */
struct rss_crypto_aead_pack_input aead_in; /* Packs AEAD-related inputs */
uint16_t function_id; /* Used to identify the function in the API dispatcher
to the service backend. See rss_crypto_func_sid for
detail */
uint16_t step; /* Key derivation step */
};
#endif /* RSS_CRYPTO_DEFS_H */