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sys/crypto/curve25519.c
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/*- | |||||
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD | |||||
* | |||||
* Copyright (c) 2021 The FreeBSD Foundation | |||||
* | |||||
* This software was developed by Ararat River Consulting, LLC under | |||||
* sponsorship from the FreeBSD Foundation. | |||||
* | |||||
* Redistribution and use in source and binary forms, with or without | |||||
* modification, are permitted provided that the following conditions | |||||
* are met: | |||||
* 1. Redistributions of source code must retain the above copyright | |||||
* notice, this list of conditions and the following disclaimer. | |||||
* 2. Redistributions in binary form must reproduce the above copyright | |||||
* notice, this list of conditions and the following disclaimer in the | |||||
* documentation and/or other materials provided with the distribution. | |||||
* | |||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |||||
jhb: Similarly. | |||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |||||
* SUCH DAMAGE. | |||||
*/ | |||||
#include <crypto/curve25519.h> | |||||
#include <sodium/crypto_scalarmult_curve25519.h> | |||||
bool | |||||
curve25519(uint8_t *public, const uint8_t *secret, | |||||
const uint8_t *basepoint) | |||||
{ | |||||
return (crypto_scalarmult_curve25519(public, secret, | |||||
basepoint) == 0); | |||||
} | |||||
bool | |||||
curve25519_generate_public(uint8_t *public, const uint8_t *secret) | |||||
{ | |||||
return (crypto_scalarmult_curve25519_base(public, secret) == 0); | |||||
} | |||||
Not Done Inline ActionsI noticed that the Linux implementations check for an all-zeros secret, presumably as a seatbelt against programming errors? A clamped secret can't be all-zeros... markj: I noticed that the Linux implementations check for an all-zeros secret, presumably as a… | |||||
Done Inline ActionsIt also checks the computed value, perhaps as a seatbelt against broken backends (since they support MD backends)? I could add the check against all zeroes if you think it's warranted. jhb: It also checks the computed value, perhaps as a seatbelt against broken backends (since they… | |||||
Not Done Inline ActionsI think the change is fine as-is. markj: I think the change is fine as-is. |
Similarly.