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- 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. |
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block | ||
dma | ||
esp_aes_common.c | ||
esp_aes_gcm.c | ||
esp_aes_xts.c |