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construct/include/ircd/ed25519.h
2017-10-03 04:27:13 -07:00

63 lines
1.8 KiB
C++

/*
* charybdis: 21st Century IRC++d
*
* Copyright (C) 2017 Charybdis Development Team
* Copyright (C) 2017 Jason Volk <jason@zemos.net>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice is present in all copies.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR 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.
*
*/
#pragma once
#define HAVE_IRCD_ED25519_H
namespace ircd::ed25519
{
const size_t PK_SZ { 32 };
const size_t SIG_SZ { 64 };
struct pk;
struct sk;
struct sig;
}
class ircd::ed25519::sk
{
std::unique_ptr<uint8_t[], void (*)(void *)> key;
public:
sig sign(const const_raw_buffer &msg) const;
sk(const string_view &filename, pk *const & = nullptr);
};
struct ircd::ed25519::pk
:std::array<uint8_t, PK_SZ>
{
using array_type = std::array<uint8_t, PK_SZ>;
bool verify(const const_raw_buffer &msg, const sig &) const;
using array_type::array_type;
};
struct ircd::ed25519::sig
:std::array<uint8_t, SIG_SZ>
{
using array_type = std::array<uint8_t, SIG_SZ>;
using array_type::array_type;
};