xref: /openbmc/linux/lib/crypto/curve25519-generic.c (revision 8dd06ef34b6e2f41b29fbf5fc1663780f2524285)
1*a8bdf2c4SHerbert Xu // SPDX-License-Identifier: GPL-2.0 OR MIT
2*a8bdf2c4SHerbert Xu /*
3*a8bdf2c4SHerbert Xu  * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
4*a8bdf2c4SHerbert Xu  *
5*a8bdf2c4SHerbert Xu  * This is an implementation of the Curve25519 ECDH algorithm, using either
6*a8bdf2c4SHerbert Xu  * a 32-bit implementation or a 64-bit implementation with 128-bit integers,
7*a8bdf2c4SHerbert Xu  * depending on what is supported by the target compiler.
8*a8bdf2c4SHerbert Xu  *
9*a8bdf2c4SHerbert Xu  * Information: https://cr.yp.to/ecdh.html
10*a8bdf2c4SHerbert Xu  */
11*a8bdf2c4SHerbert Xu 
12*a8bdf2c4SHerbert Xu #include <crypto/curve25519.h>
13*a8bdf2c4SHerbert Xu #include <linux/module.h>
14*a8bdf2c4SHerbert Xu 
15*a8bdf2c4SHerbert Xu const u8 curve25519_null_point[CURVE25519_KEY_SIZE] __aligned(32) = { 0 };
16*a8bdf2c4SHerbert Xu const u8 curve25519_base_point[CURVE25519_KEY_SIZE] __aligned(32) = { 9 };
17*a8bdf2c4SHerbert Xu 
18*a8bdf2c4SHerbert Xu EXPORT_SYMBOL(curve25519_null_point);
19*a8bdf2c4SHerbert Xu EXPORT_SYMBOL(curve25519_base_point);
20*a8bdf2c4SHerbert Xu EXPORT_SYMBOL(curve25519_generic);
21*a8bdf2c4SHerbert Xu 
22*a8bdf2c4SHerbert Xu MODULE_LICENSE("GPL v2");
23*a8bdf2c4SHerbert Xu MODULE_DESCRIPTION("Curve25519 scalar multiplication");
24*a8bdf2c4SHerbert Xu MODULE_AUTHOR("Jason A. Donenfeld <Jason@zx2c4.com>");
25