cristiancmoises/zupt
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Commit graph zupt/src/zupt_x25519.c
Author SHA1 Message Date
Cristian Cezar Moisés
f3e39fb8e6 v2.1.7: Zupt is now licensed under the GNU Affero General Public License v3.0 or later (AGPL-3.0-or-later) + VaptVupt v2.46.1(GPLv3) 2026-04-26 01:47:45 -03:00
Cristian Cezar Moisés
d8de951b6d Release: 2.1.4 - Resolved high-severity vulnerabilities by removing TOCTOU filesystem races via fd-first open()/fstat() patterns and enforcing non-optimizable secure memory zeroization for cryptographic material. 2026-04-11 17:24:32 -03:00
Cristian Cezar Moisés
6651842748 Feat: Added vaptvupt codec, fix jasmin tests 2026-03-30 06:56:52 -03:00
Cristian Cezar Moisés
06c877ec86 feat: add Jasmin assembly integration for crypto acceleration 
- Integrated `zupt_mac_verify_ct` in `zupt_decrypt_buffer()` to replace C XOR loop for HMAC-SHA256
- Integrated `zupt_ct_select_32` in `zupt_mlkem768_decaps()` to replace C `cmov()` for FO transformation
- Added `include/zupt_jasmin.h` with extern declarations and ABI docs
- Added `#ifdef ZUPT_USE_JASMIN` guards with clean C fallbacks in `zupt_crypto.c` and `zupt_mlkem.c`
- Makefile now auto-detects `jasmin/*.s`, assembles and links with `-DZUPT_USE_JASMIN`

Closes #3
 2026-03-28 23:03:04 -03:00
Cristian Cezar Moisés
83c801d7b6 Fix: clarified Montgomery constant and closed issue #1 
Added detailed comments explaining why the X25519 implementation uses the constant 121666 (a24 = (A + 2) / 4 as defined in RFC 7748). This improves readability and avoids future confusion.

Issue #1 reviewed and closed.
 2026-03-22 10:22:57 -03:00
Cristian Cezar Moisés
c80332778f Compress everything. Trust nothing. Encrypt always. 2026-03-21 22:06:03 -03:00