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fix(mbedtls): validate ECDSA signature range and harden ECC memory power-down

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harshal.patil
2026-06-09 14:58:59 +05:30
parent 785ab7a4e6
commit beb13babca
18 changed files with 120 additions and 52 deletions
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components/esp_hal_security/esp32p4/include/hal/ecc_ll.h
+17 -3
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2023-2025 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2023-2026 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -12,8 +12,10 @@
#include "hal/efuse_hal.h"
#include "soc/ecc_mult_reg.h"
#include "soc/hp_sys_clkrst_struct.h"
#include "soc/hp_system_reg.h"
#include "soc/chip_revision.h"
#include "hal/config.h"
#include "esp_fault.h"
#ifdef __cplusplus
extern "C" {
@@ -65,8 +67,20 @@ static inline void ecc_ll_reset_register(void)
ecc_ll_reset_register(__VA_ARGS__); \
} while(0)
static inline void ecc_ll_power_up(void) {}
static inline void ecc_ll_power_down(void) {}
static inline void ecc_ll_power_up(void)
{
/* Power up the ECC peripheral (default state is power-up) */
REG_CLR_BIT(HP_SYSTEM_ECC_PD_CTRL_REG, HP_SYSTEM_ECC_MEM_PD);
REG_CLR_BIT(HP_SYSTEM_ECC_PD_CTRL_REG, HP_SYSTEM_ECC_MEM_FORCE_PD);
ESP_FAULT_ASSERT(REG_GET_BIT(HP_SYSTEM_ECC_PD_CTRL_REG, HP_SYSTEM_ECC_MEM_FORCE_PD) == 0);
}
static inline void ecc_ll_power_down(void)
{
/* Power down the ECC peripheral */
REG_CLR_BIT(HP_SYSTEM_ECC_PD_CTRL_REG, HP_SYSTEM_ECC_MEM_FORCE_PU);
REG_SET_BIT(HP_SYSTEM_ECC_PD_CTRL_REG, HP_SYSTEM_ECC_MEM_PD);
}
static inline void ecc_ll_enable_interrupt(void)
{