| # Copyright (c) 2025 Espressif Systems |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| config CRYPTO_ESP32 |
| bool "Espressif Crypto driver" |
| depends on DT_HAS_ESPRESSIF_ESP32_AES_ENABLED || DT_HAS_ESPRESSIF_ESP32_SHA_ENABLED |
| default y |
| help |
| Enable the Espressif hardware crypto drivers for AES and SHA |
| accelerators. |
| |
| if CRYPTO_ESP32 |
| |
| config CRYPTO_ESP32_AES |
| bool "ESP32 AES Hardware Accelerator" |
| depends on DT_HAS_ESPRESSIF_ESP32_AES_ENABLED |
| default y |
| help |
| Enable support for the Espressif AES hardware accelerator. |
| This driver implements AES-ECB, AES-CBC, and AES-CTR modes |
| using the hardware AES engine through the HAL. |
| |
| config CRYPTO_ESP32_SHA |
| bool "ESP32 SHA Hardware Accelerator" |
| depends on DT_HAS_ESPRESSIF_ESP32_SHA_ENABLED |
| default y |
| help |
| Enable support for the Espressif SHA hardware accelerator. |
| This driver implements SHA-224, SHA-256, SHA-384, and SHA-512 |
| using the Espressif HAL SHA engine. |
| |
| config CRYPTO_ESP32_SHA_SESSIONS_MAX |
| int "Max ESP32 SHA sessions" |
| depends on CRYPTO_ESP32_SHA |
| range 1 32 |
| default 2 |
| help |
| Maximum number of concurrent SHA hash sessions. |
| Each session uses approximately 300-400 bytes of RAM |
| (more for SHA-384/512 due to larger state). |
| |
| config ESP32_CRYPTO_AES_SESSIONS_MAX |
| int "Max ESP32 AES sessions" |
| depends on CRYPTO_ESP32_AES |
| range 1 32 |
| default 4 |
| help |
| Maximum number of concurrent AES sessions. |
| Each session uses approximately 300-400 bytes of RAM |
| (more for AES-256 due to larger state). |
| |
| endif # CRYPTO_ESP32 |
