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feat(hal/ecc): Support ECC hardware constant-time point multiplication operations

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harshal.patil 2024-07-05 15:54:22 +05:30
parent 3000402fcf
commit 2bf6a3cf8b
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GPG Key ID: 5B5EC97C35B9A2E5
8 changed files with 50 additions and 2 deletions
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9
components/hal/ecc_hal.c
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@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2021-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -177,3 +177,10 @@ int ecc_hal_read_mod_op_result(uint8_t *r, uint16_t len)
}
#endif /* SOC_ECC_EXTENDED_MODES_SUPPORTED */
#ifdef SOC_ECC_CONSTANT_TIME_POINT_MUL
void ecc_hal_enable_constant_time_point_mul(bool enable)
{
ecc_ll_enable_constant_time_point_mul(enable);
}
#endif /* SOC_ECC_CONSTANT_TIME_POINT_MUL */

9
components/hal/esp32c5/include/hal/ecc_ll.h
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@ -148,6 +148,15 @@ static inline void ecc_ll_set_mod_base(ecc_mod_base_t base)
}
}
static inline void ecc_ll_enable_constant_time_point_mul(bool enable)
{
if (enable) {
REG_SET_BIT(ECC_MULT_CONF_REG, ECC_MULT_SECURITY_MODE);
} else {
REG_CLR_BIT(ECC_MULT_CONF_REG, ECC_MULT_SECURITY_MODE);
}
}
static inline void ecc_ll_write_param(ecc_ll_param_t param, const uint8_t *buf, uint16_t len)
{
uint32_t reg;

9
components/hal/esp32c61/include/hal/ecc_ll.h
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@ -148,6 +148,15 @@ static inline void ecc_ll_set_mod_base(ecc_mod_base_t base)
}
}
static inline void ecc_ll_enable_constant_time_point_mul(bool enable)
{
if (enable) {
REG_SET_BIT(ECC_MULT_CONF_REG, ECC_MULT_SECURITY_MODE);
} else {
REG_CLR_BIT(ECC_MULT_CONF_REG, ECC_MULT_SECURITY_MODE);
}
}
static inline void ecc_ll_write_param(ecc_ll_param_t param, const uint8_t *buf, uint16_t len)
{
uint32_t reg;

11
components/hal/include/hal/ecc_hal.h
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@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2021-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -195,6 +195,15 @@ int ecc_hal_read_mod_op_result(uint8_t *r, uint16_t len);
#endif /* SOC_ECC_EXTENDED_MODES_SUPPORTED */
#ifdef SOC_ECC_CONSTANT_TIME_POINT_MUL
/**
* @brief Enable constant time multiplication operations
*
* @param true: enable; false: disable
*/
void ecc_hal_enable_constant_time_point_mul(bool enable);
#endif /* SOC_ECC_CONSTANT_TIME_POINT_MUL */
#ifdef __cplusplus
}
#endif

4
components/soc/esp32c5/include/soc/Kconfig.soc_caps.in
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@ -935,6 +935,10 @@ config SOC_SHA_SUPPORT_SHA256
bool
default y
config SOC_ECC_CONSTANT_TIME_POINT_MUL
bool
default y
config SOC_ECDSA_SUPPORT_EXPORT_PUBKEY
bool
default y

3
components/soc/esp32c5/include/soc/soc_caps.h
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@ -395,6 +395,9 @@
#define SOC_SHA_SUPPORT_SHA224 (1)
#define SOC_SHA_SUPPORT_SHA256 (1)
/*--------------------------- ECC CAPS ---------------------------------------*/
#define SOC_ECC_CONSTANT_TIME_POINT_MUL 1
/*--------------------------- ECDSA CAPS ---------------------------------------*/
#define SOC_ECDSA_SUPPORT_EXPORT_PUBKEY (1)

4
components/soc/esp32c61/include/soc/Kconfig.soc_caps.in
View File

@ -515,6 +515,10 @@ config SOC_SHA_SUPPORT_SHA256
bool
default y
config SOC_ECC_CONSTANT_TIME_POINT_MUL
bool
default y
config SOC_ECDSA_SUPPORT_EXPORT_PUBKEY
bool
default y

3
components/soc/esp32c61/include/soc/soc_caps.h
View File

@ -289,6 +289,9 @@
#define SOC_SHA_SUPPORT_SHA224 (1)
#define SOC_SHA_SUPPORT_SHA256 (1)
/*--------------------------- ECC CAPS ---------------------------------------*/
#define SOC_ECC_CONSTANT_TIME_POINT_MUL 1
/*--------------------------- ECDSA CAPS ---------------------------------------*/
#define SOC_ECDSA_SUPPORT_EXPORT_PUBKEY (1)
#define SOC_ECDSA_SUPPORT_DETERMINISTIC_MODE (1)