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

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This commit is contained in:
harshal.patil
2026-06-09 10:59:11 +05:30
parent edae80c202
commit 554cce6937
18 changed files with 120 additions and 52 deletions
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components/esp_hal_security/esp32h4/include/hal/ecc_ll.h
+5 -2
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@@ -12,6 +12,7 @@
#include "soc/ecc_mult_reg.h"
#include "soc/pcr_struct.h"
#include "soc/pcr_reg.h"
#include "esp_fault.h"
#ifdef __cplusplus
extern "C" {
@@ -50,9 +51,11 @@ static inline void ecc_ll_reset_register(void)
static inline void ecc_ll_power_up(void)
{
/* Power up the ECC peripheral (default state is power-down) */
/* Power up the ECC peripheral (default state is power-up) */
REG_CLR_BIT(PCR_ECC_MEM_LP_CTRL_REG, PCR_ECC_MEM_LP_EN);
REG_CLR_BIT(PCR_ECC_MEM_LP_CTRL_REG, PCR_ECC_MEM_FORCE_CTRL);
REG_SET_BIT(PCR_ECC_MEM_LP_CTRL_REG, PCR_ECC_MEM_FORCE_CTRL);
ESP_FAULT_ASSERT(REG_GET_BIT(PCR_ECC_MEM_LP_CTRL_REG, PCR_ECC_MEM_LP_EN) == 0 &&
REG_GET_BIT(PCR_ECC_MEM_LP_CTRL_REG, PCR_ECC_MEM_FORCE_CTRL) != 0);
}
static inline void ecc_ll_power_down(void)