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5c93fe47cb
- GCM operation in mbedtls used ECB, which calculated only 16 bytes of data each time. - Therefore, when processing a large amount of data, it is necessary to frequently set hardware acceleration calculations, - which could not make good use of the AES DMA function to improve efficiency. - Hence, GCM implementation is replaced with CTR-based calculation which utilizes AES DMA to improve efficiency.
44 lines
996 B
C
44 lines
996 B
C
/*
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* gcm_alt.h: AES block cipher
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*
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* SPDX-FileCopyrightText: The Mbed TLS Contributors
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* SPDX-FileContributor: 2016-2022 Espressif Systems (Shanghai) CO LTD
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*/
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#ifndef GCM_ALT_H
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#define GCM_ALT_H
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#include "soc/soc_caps.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if defined(MBEDTLS_GCM_ALT)
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#include "aes/esp_aes_gcm.h"
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typedef esp_gcm_context mbedtls_gcm_context;
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#define mbedtls_gcm_init esp_aes_gcm_init
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#define mbedtls_gcm_free esp_aes_gcm_free
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#define mbedtls_gcm_setkey esp_aes_gcm_setkey
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#define mbedtls_gcm_starts esp_aes_gcm_starts
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#define mbedtls_gcm_update_ad esp_aes_gcm_update_ad
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#define mbedtls_gcm_update esp_aes_gcm_update
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#define mbedtls_gcm_finish esp_aes_gcm_finish
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#define mbedtls_gcm_auth_decrypt esp_aes_gcm_auth_decrypt
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#define mbedtls_gcm_crypt_and_tag esp_aes_gcm_crypt_and_tag
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#endif /* MBEDTLS_GCM_ALT */
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#ifdef __cplusplus
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}
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#endif
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#endif
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