46 lines
1.2 KiB
C
46 lines
1.2 KiB
C
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/*
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* Copyright (c) 2023 O.S.Systems
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef __UPDATEHUB_INTEGRITY_H__
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#define __UPDATEHUB_INTEGRITY_H__
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#if defined(CONFIG_FLASH_AREA_CHECK_INTEGRITY_MBEDTLS)
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#include <mbedtls/md.h>
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#elif defined(CONFIG_FLASH_AREA_CHECK_INTEGRITY_TC)
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#include <tinycrypt/sha256.h>
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#include <tinycrypt/constants.h>
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#else
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#error "Integrity check method not defined"
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define SHA256_BIN_DIGEST_SIZE (32)
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#define SHA256_HEX_DIGEST_SIZE ((SHA256_BIN_DIGEST_SIZE * 2) + 1)
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struct updatehub_crypto_context {
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#if defined(CONFIG_FLASH_AREA_CHECK_INTEGRITY_MBEDTLS)
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mbedtls_md_context_t md_ctx;
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const mbedtls_md_info_t *md_info;
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#elif defined(CONFIG_FLASH_AREA_CHECK_INTEGRITY_TC)
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struct tc_sha256_state_struct sha256sum;
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#endif
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};
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int updatehub_integrity_init(struct updatehub_crypto_context *ctx);
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int updatehub_integrity_update(struct updatehub_crypto_context *ctx,
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const uint8_t *buffer, const uint32_t len);
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int updatehub_integrity_finish(struct updatehub_crypto_context *ctx,
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uint8_t *hash, const uint32_t size);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __UPDATEHUB_INTEGRITY_H__ */
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