56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
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/*
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* Copyright (c) 2015-2020, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef COT_DEF_H
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#define COT_DEF_H
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#ifdef MBEDTLS_CONFIG_FILE
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#include MBEDTLS_CONFIG_FILE
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#endif
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/* TBBR CoT definitions */
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#if defined(SPD_spmd)
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#define COT_MAX_VERIFIED_PARAMS 8
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#else
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#define COT_MAX_VERIFIED_PARAMS 4
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#endif
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/*
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* Maximum key and hash sizes (in DER format).
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*
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* Both RSA and ECDSA keys may be used at the same time. In this case, the key
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* buffers must be big enough to hold either. As RSA keys are bigger than ECDSA
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* ones for all key sizes we support, they impose the minimum size of these
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* buffers.
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*/
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#if TF_MBEDTLS_USE_RSA
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#if TF_MBEDTLS_KEY_SIZE == 1024
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#define PK_DER_LEN 162
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#elif TF_MBEDTLS_KEY_SIZE == 2048
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#define PK_DER_LEN 294
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#elif TF_MBEDTLS_KEY_SIZE == 3072
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#define PK_DER_LEN 422
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#elif TF_MBEDTLS_KEY_SIZE == 4096
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#define PK_DER_LEN 550
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#else
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#error "Invalid value for TF_MBEDTLS_KEY_SIZE"
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#endif
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#else /* Only using ECDSA keys. */
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#define PK_DER_LEN 91
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#endif
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#if TF_MBEDTLS_HASH_ALG_ID == TF_MBEDTLS_SHA256
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#define HASH_DER_LEN 51
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#elif TF_MBEDTLS_HASH_ALG_ID == TF_MBEDTLS_SHA384
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#define HASH_DER_LEN 67
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#elif TF_MBEDTLS_HASH_ALG_ID == TF_MBEDTLS_SHA512
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#define HASH_DER_LEN 83
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#else
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#error "Invalid value for TF_MBEDTLS_HASH_ALG_ID"
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#endif
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#endif /* COT_DEF_H */
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