mirror of
https://github.com/matrix-construct/construct
synced 2024-12-30 17:34:04 +01:00
65 lines
1.6 KiB
C++
65 lines
1.6 KiB
C++
// Matrix Construct
|
||
//
|
||
// Copyright (C) Matrix Construct Developers, Authors & Contributors
|
||
// Copyright (C) 2016-2018 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. The
|
||
// full license for this software is available in the LICENSE file.
|
||
|
||
#pragma once
|
||
#define HAVE_IRCD_ED25519_H
|
||
|
||
/// y^2 = x^3 + 486662x^2 + x GF(2^255 − 19)
|
||
namespace ircd::ed25519
|
||
{
|
||
IRCD_EXCEPTION(ircd::error, error)
|
||
IRCD_EXCEPTION(error, bad_sig)
|
||
|
||
const size_t SK_SZ { 32 + 32 };
|
||
const size_t PK_SZ { 32 };
|
||
const size_t SIG_SZ { 64 };
|
||
const size_t SEED_SZ { 32 };
|
||
|
||
struct pk;
|
||
struct sk;
|
||
struct sig;
|
||
}
|
||
|
||
class ircd::ed25519::sk
|
||
{
|
||
std::unique_ptr<uint8_t[], void (*)(void *)> key;
|
||
|
||
public:
|
||
operator bool() const { return bool(key); }
|
||
bool operator!() const { return !key; }
|
||
|
||
sig sign(const const_buffer &msg) const;
|
||
|
||
sk(const string_view &filename, pk *const & = nullptr, const bool &create = false);
|
||
sk(pk *const &, const const_buffer &seed);
|
||
sk(): key{nullptr, std::free} {}
|
||
};
|
||
|
||
struct ircd::ed25519::pk
|
||
:fixed_mutable_buffer<PK_SZ>
|
||
{
|
||
bool verify(const const_buffer &msg, const sig &) const;
|
||
|
||
using fixed_mutable_buffer<PK_SZ>::fixed_mutable_buffer;
|
||
|
||
pk()
|
||
:fixed_mutable_buffer<PK_SZ>{nullptr}
|
||
{}
|
||
};
|
||
|
||
struct ircd::ed25519::sig
|
||
:fixed_mutable_buffer<SIG_SZ>
|
||
{
|
||
using fixed_mutable_buffer<SIG_SZ>::fixed_mutable_buffer;
|
||
|
||
sig()
|
||
:fixed_mutable_buffer<SIG_SZ>{nullptr}
|
||
{}
|
||
};
|