mirror of
https://github.com/matrix-construct/construct
synced 2024-11-16 06:51:08 +01:00
65 lines
1.6 KiB
C++
65 lines
1.6 KiB
C++
// Matrix Construct
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//
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// Copyright (C) Matrix Construct Developers, Authors & Contributors
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// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice is present in all copies. The
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// full license for this software is available in the LICENSE file.
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#pragma once
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#define HAVE_IRCD_ED25519_H
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/// y^2 = x^3 + 486662x^2 + x GF(2^255 − 19)
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namespace ircd::ed25519
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{
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IRCD_EXCEPTION(ircd::error, error)
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IRCD_EXCEPTION(error, bad_sig)
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const size_t SK_SZ { 32 + 32 };
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const size_t PK_SZ { 32 };
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const size_t SIG_SZ { 64 };
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const size_t SEED_SZ { 32 };
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struct pk;
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struct sk;
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struct sig;
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}
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class ircd::ed25519::sk
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{
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std::unique_ptr<uint8_t[], void (*)(void *)> key;
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public:
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operator bool() const { return bool(key); }
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bool operator!() const { return !key; }
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sig sign(const const_buffer &msg) const;
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sk(const string_view &filename, pk *const & = nullptr, const bool &create = false);
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sk(pk *const &, const const_buffer &seed);
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sk(): key{nullptr, std::free} {}
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};
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struct ircd::ed25519::pk
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:fixed_mutable_buffer<PK_SZ>
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{
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bool verify(const const_buffer &msg, const sig &) const;
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using fixed_mutable_buffer<PK_SZ>::fixed_mutable_buffer;
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pk()
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:fixed_mutable_buffer<PK_SZ>{nullptr}
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{}
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};
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struct ircd::ed25519::sig
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:fixed_mutable_buffer<SIG_SZ>
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{
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using fixed_mutable_buffer<SIG_SZ>::fixed_mutable_buffer;
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sig()
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:fixed_mutable_buffer<SIG_SZ>{nullptr}
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{}
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};
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