Mirrors/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2026-10-02 03:00:34 +03:00
Code Issues Packages Projects Releases Wiki Activity

feat(ecc): enable ECC constant time mode for ESP32-H2 ECO5

Browse Source
This commit is contained in:
Mahavir Jain
2025-02-19 19:15:17 +05:30
committed by Aditya Patwardhan
parent d4bb0e2aa3
commit e97c51ea24
15 changed files with 166 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files
components/mbedtls/port/ecc/esp_ecc.c
+8
View File
@@ -44,6 +44,14 @@ int esp_ecc_point_multiply(const ecc_point_t *point, const uint8_t *scalar, ecc_
ecc_hal_write_mul_param(scalar, point->x, point->y, len);
ecc_hal_set_mode(work_mode);
/*
* Enable constant-time point multiplication operations for the ECC hardware accelerator,
* if supported for the given target. This protects the ECC multiplication operation from
* timing attacks. This increases the time taken (by almost 50%) for some point
* multiplication operations performed by the ECC hardware accelerator.
*/
ecc_hal_enable_constant_time_point_mul(true);
ecc_hal_start_calc();
memset(result, 0, sizeof(ecc_point_t));