alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2025-08-10 04:43:33 +00:00
Code Issues Packages Projects Releases Wiki Activity

feat(hal/aes): Enable pseudo rounds function during AES operations

Browse Source
This commit is contained in:
harshal.patil
2024-09-18 12:18:51 +05:30
parent bcd80c92f3
commit c6ea979efa
11 changed files with 196 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
components/hal/esp32c5/include/hal/aes_ll.h
View File

@@ -8,7 +8,7 @@
#include <stdbool.h>
#include <string.h>
#include "soc/hwcrypto_reg.h"
#include "soc/aes_reg.h"
#include "soc/pcr_struct.h"
#include "hal/aes_types.h"
@@ -241,6 +241,28 @@ static inline void aes_ll_interrupt_clear(void)
REG_WRITE(AES_INT_CLEAR_REG, 1);
}
/**
* @brief Enable the pseudo-round function during AES operations
*
* @param enable true to enable, false to disable
* @param base basic number of pseudo rounds, zero if disable
* @param increment increment number of pseudo rounds, zero if disable
* @param key_rng_cnt update frequency of the pseudo-key, zero if disable
*/
static inline void aes_ll_enable_pseudo_rounds(bool enable, uint8_t base, uint8_t increment, uint8_t key_rng_cnt)
{
REG_SET_FIELD(AES_PSEUDO_REG, AES_PSEUDO_EN, enable);
if (enable) {
REG_SET_FIELD(AES_PSEUDO_REG, AES_PSEUDO_BASE, base);
REG_SET_FIELD(AES_PSEUDO_REG, AES_PSEUDO_INC, increment);
REG_SET_FIELD(AES_PSEUDO_REG, AES_PSEUDO_RNG_CNT, key_rng_cnt);
} else {
REG_SET_FIELD(AES_PSEUDO_REG, AES_PSEUDO_BASE, 0);
REG_SET_FIELD(AES_PSEUDO_REG, AES_PSEUDO_INC, 0);
REG_SET_FIELD(AES_PSEUDO_REG, AES_PSEUDO_RNG_CNT, 0);
}
}
#ifdef __cplusplus
}