| /* |
| * cifra - embedded cryptography library |
| * Written in 2014 by Joseph Birr-Pixton <jpixton@gmail.com> |
| * |
| * To the extent possible under law, the author(s) have dedicated all |
| * copyright and related and neighboring rights to this software to the |
| * public domain worldwide. This software is distributed without any |
| * warranty. |
| * |
| * You should have received a copy of the CC0 Public Domain Dedication |
| * along with this software. If not, see |
| * <http://creativecommons.org/publicdomain/zero/1.0/>. |
| */ |
| |
| #ifndef CURVE25519_H |
| #define CURVE25519_H |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| /** |
| * Curve25519 |
| * ========== |
| * This is `curve25519 <http://cr.yp.to/ecdh.html>`_ with switchable |
| * implementations underneath. |
| * |
| * By default tweetnacl is used on hosts, and the implementation |
| * from μNaCl for Cortex-M0, M3 and M4. |
| */ |
| |
| /* .. c:function:: $DECL |
| * Multiplies `point` by `scalar`, putting the resulting point into `out`. */ |
| void cf_curve25519_mul(uint8_t out[32], |
| const uint8_t scalar[32], |
| const uint8_t point[32]); |
| |
| /* .. c:function:: $DECL |
| * Multiplies `scalar` by the curve25519 base point, putting the resulting |
| * point into `out`. */ |
| void cf_curve25519_mul_base(uint8_t out[32], const uint8_t scalar[32]); |
| |
| #endif |
