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82 lines
2.6 KiB
82 lines
2.6 KiB
/*
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Copyright (c) 2018 tevador
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This file is part of RandomX.
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RandomX is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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RandomX is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with RandomX. If not, see<http://www.gnu.org/licenses/>.
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*/
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#include <cstring>
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#include "Cache.hpp"
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#include "argon2.h"
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#include "argon2_core.h"
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namespace RandomX {
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static_assert(RANDOMX_ARGON_MEMORY % (RANDOMX_ARGON_LANES * ARGON2_SYNC_POINTS) == 0, "RANDOMX_ARGON_MEMORY - invalid value");
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static_assert(RANDOMX_ARGON_GROWTH % (RANDOMX_ARGON_LANES * ARGON2_SYNC_POINTS) == 0, "RANDOMX_ARGON_GROWTH - invalid value");
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void argonFill(Cache& cache, const void* seed, size_t seedSize) {
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uint32_t memory_blocks, segment_length;
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argon2_instance_t instance;
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argon2_context context;
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context.out = nullptr;
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context.outlen = 0;
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context.pwd = CONST_CAST(uint8_t *)seed;
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context.pwdlen = (uint32_t)seedSize;
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context.salt = CONST_CAST(uint8_t *)RANDOMX_ARGON_SALT;
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context.saltlen = (uint32_t)ArgonSaltSize;
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context.secret = NULL;
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context.secretlen = 0;
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context.ad = NULL;
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context.adlen = 0;
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context.t_cost = RANDOMX_ARGON_ITERATIONS;
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context.m_cost = cache.size / ArgonBlockSize;
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context.lanes = RANDOMX_ARGON_LANES;
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context.threads = 1;
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context.allocate_cbk = NULL;
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context.free_cbk = NULL;
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context.flags = ARGON2_DEFAULT_FLAGS;
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context.version = ARGON2_VERSION_NUMBER;
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/* 2. Align memory size */
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/* Minimum memory_blocks = 8L blocks, where L is the number of lanes */
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memory_blocks = context.m_cost;
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segment_length = memory_blocks / (context.lanes * ARGON2_SYNC_POINTS);
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instance.version = context.version;
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instance.memory = NULL;
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instance.passes = context.t_cost;
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instance.memory_blocks = memory_blocks;
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instance.segment_length = segment_length;
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instance.lane_length = segment_length * ARGON2_SYNC_POINTS;
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instance.lanes = context.lanes;
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instance.threads = context.threads;
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instance.type = Argon2_d;
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instance.memory = (block*)cache.memory;
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if (instance.threads > instance.lanes) {
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instance.threads = instance.lanes;
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}
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/* 3. Initialization: Hashing inputs, allocating memory, filling first
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* blocks
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*/
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argon_initialize(&instance, &context);
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fill_memory_blocks(&instance);
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}
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} |