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

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Co-Authored-By: Ashish Sharma <ashish.sharma@espressif.com>
This commit is contained in:
harshal.patil
2026-06-12 16:54:33 +05:30
co-authored by Ashish Sharma
parent dfe53e2090
commit 483c51b3c8
11 changed files with 56 additions and 11 deletions
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components/hal/esp32h2/include/hal/ecc_ll.h
+3 -1
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2023-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2023-2026 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -12,6 +12,7 @@
#include "soc/ecc_mult_reg.h"
#include "soc/pcr_struct.h"
#include "soc/pcr_reg.h"
#include "esp_fault.h"
#include "soc/chip_revision.h"
#include "hal/efuse_hal.h"
@@ -54,6 +55,7 @@ static inline void ecc_ll_power_up(void)
{
REG_CLR_BIT(PCR_ECC_PD_CTRL_REG, PCR_ECC_MEM_PD);
REG_CLR_BIT(PCR_ECC_PD_CTRL_REG, PCR_ECC_MEM_FORCE_PD);
ESP_FAULT_ASSERT(REG_GET_BIT(PCR_ECC_PD_CTRL_REG, PCR_ECC_MEM_FORCE_PD) == 0);
}
static inline void ecc_ll_power_down(void)