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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/esp32s31/include/hal/ecc_ll.h
+17 -2
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@@ -11,6 +11,8 @@
#include "hal/ecc_types.h"
#include "soc/ecc_mult_reg.h"
#include "soc/hp_sys_clkrst_struct.h"
#include "soc/hp_system_reg.h"
#include "esp_fault.h"
#ifdef __cplusplus
extern "C" {
@@ -62,8 +64,21 @@ 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_MEM_LP_CTRL_REG, HP_SYSTEM_ECC_MEM_LP_EN);
REG_SET_BIT(HP_SYSTEM_ECC_MEM_LP_CTRL_REG, HP_SYSTEM_ECC_MEM_LP_FORCE_CTRL);
/* Anti-FI: confirm the clears took effect. */
ESP_FAULT_ASSERT(REG_GET_BIT(HP_SYSTEM_ECC_MEM_LP_CTRL_REG, HP_SYSTEM_ECC_MEM_LP_EN) == 0 &&
REG_GET_BIT(HP_SYSTEM_ECC_MEM_LP_CTRL_REG, HP_SYSTEM_ECC_MEM_LP_FORCE_CTRL) != 0);
}
static inline void ecc_ll_power_down(void)
{
/* Power down the ECC peripheral */
REG_SET_BIT(HP_SYSTEM_ECC_MEM_LP_CTRL_REG, HP_SYSTEM_ECC_MEM_LP_EN);
}
static inline void ecc_ll_enable_interrupt(void)
{