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dolphin/Source/Core/Common/Crypto/bn.h

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Crypto: small cleanup
2014-02-28 11:41:10 +00:00
// Copyright 2014 Dolphin Emulator Project
treewide: convert GPLv2+ license info to SPDX tags SPDX standardizes how source code conveys its copyright and licensing information. See https://spdx.github.io/spdx-spec/1-rationale/ . SPDX tags are adopted in many large projects, including things like the Linux kernel.
2021-07-05 01:22:19 +00:00
// SPDX-License-Identifier: GPL-2.0-or-later
Crypto: small cleanup
2014-02-28 11:41:10 +00:00
#pragma once
#include "Common/CommonTypes.h"
// bignum arithmetic
bn: Use int instead of u32 for sizes The loops relied on unsigned integer overflow, which is not immediately obvious. Replace them with less clever variants that are clearer. Also implement bn_compare using std::memcmp.
2018-05-15 22:27:43 +00:00
int bn_compare(const u8* a, const u8* b, int n);
void bn_sub_modulus(u8* a, const u8* N, int n);
void bn_add(u8* d, const u8* a, const u8* b, const u8* N, int n);
void bn_mul(u8* d, const u8* a, const u8* b, const u8* N, int n);
void bn_inv(u8* d, const u8* a, const u8* N, int n); // only for prime N
void bn_exp(u8* d, const u8* a, const u8* N, int n, const u8* e, int en);