blob: c4111469200a9f96e5d044bc708f8121e855aebd [file] [log] [blame]
/*
* Copyright (c) 2015-2020, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef COT_DEF_H
#define COT_DEF_H
/* TBBR CoT definitions */
#define COT_MAX_VERIFIED_PARAMS 4
/*
* Maximum key and hash sizes (in DER format).
*
* Both RSA and ECDSA keys may be used at the same time. In this case, the key
* buffers must be big enough to hold either. As RSA keys are bigger than ECDSA
* ones for all key sizes we support, they impose the minimum size of these
* buffers.
*/
#if TF_MBEDTLS_USE_RSA
#if TF_MBEDTLS_KEY_SIZE == 1024
#define PK_DER_LEN 162
#elif TF_MBEDTLS_KEY_SIZE == 2048
#define PK_DER_LEN 294
#elif TF_MBEDTLS_KEY_SIZE == 3072
#define PK_DER_LEN 422
#elif TF_MBEDTLS_KEY_SIZE == 4096
#define PK_DER_LEN 550
#else
#error "Invalid value for TF_MBEDTLS_KEY_SIZE"
#endif
#else /* Only using ECDSA keys. */
#define PK_DER_LEN 91
#endif
#if TF_MBEDTLS_HASH_ALG_ID == TF_MBEDTLS_SHA256
#define HASH_DER_LEN 51
#elif TF_MBEDTLS_HASH_ALG_ID == TF_MBEDTLS_SHA384
#define HASH_DER_LEN 67
#elif TF_MBEDTLS_HASH_ALG_ID == TF_MBEDTLS_SHA512
#define HASH_DER_LEN 83
#else
#error "Invalid value for TF_MBEDTLS_HASH_ALG_ID"
#endif
#endif /* COT_DEF_H */