1 /* 2 * Copyright (c) 2015, Google Inc. 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION 13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN 14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 /* 18 * This code is mostly taken from the ref10 version of Ed25519 in SUPERCOP 19 * 20141124 (http://bench.cr.yp.to/supercop.html). That code is released as 20 * public domain but this file has the ISC license just to keep licencing 21 * simple. 22 * 23 * The field functions are shared by Ed25519 and X25519 where possible. 24 */ 25 26 #include "curve25519_internal.h" 27 28 void 29 x25519_scalar_mult(uint8_t out[32], const uint8_t scalar[32], 30 const uint8_t point[32]) 31 { 32 x25519_scalar_mult_generic(out, scalar, point); 33 } 34