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// Copyright (c) 2019-2022 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <bench/bench.h>
#include <crypto/chacha20.h>
#include <crypto/chacha20poly1305.h>
/* Number of bytes to process per iteration */
static const uint64_t BUFFER_SIZE_TINY = 64;
static const uint64_t BUFFER_SIZE_SMALL = 256;
static const uint64_t BUFFER_SIZE_LARGE = 1024*1024;
static void CHACHA20(benchmark::Bench& bench, size_t buffersize)
{
std::vector<std::byte> key(32, {});
ChaCha20 ctx(key);
ctx.Seek({0, 0}, 0);
std::vector<std::byte> in(buffersize, {});
std::vector<std::byte> out(buffersize, {});
bench.batch(in.size()).unit("byte").run([&] {
ctx.Crypt(in, out);
});
}
static void FSCHACHA20POLY1305(benchmark::Bench& bench, size_t buffersize)
{
std::vector<std::byte> key(32);
FSChaCha20Poly1305 ctx(key, 224);
std::vector<std::byte> in(buffersize);
std::vector<std::byte> aad;
std::vector<std::byte> out(buffersize + FSChaCha20Poly1305::EXPANSION);
bench.batch(in.size()).unit("byte").run([&] {
ctx.Encrypt(in, aad, out);
});
}
static void CHACHA20_64BYTES(benchmark::Bench& bench)
{
CHACHA20(bench, BUFFER_SIZE_TINY);
}
static void CHACHA20_256BYTES(benchmark::Bench& bench)
{
CHACHA20(bench, BUFFER_SIZE_SMALL);
}
static void CHACHA20_1MB(benchmark::Bench& bench)
{
CHACHA20(bench, BUFFER_SIZE_LARGE);
}
static void FSCHACHA20POLY1305_64BYTES(benchmark::Bench& bench)
{
FSCHACHA20POLY1305(bench, BUFFER_SIZE_TINY);
}
static void FSCHACHA20POLY1305_256BYTES(benchmark::Bench& bench)
{
FSCHACHA20POLY1305(bench, BUFFER_SIZE_SMALL);
}
static void FSCHACHA20POLY1305_1MB(benchmark::Bench& bench)
{
FSCHACHA20POLY1305(bench, BUFFER_SIZE_LARGE);
}
BENCHMARK(CHACHA20_64BYTES, benchmark::PriorityLevel::HIGH);
BENCHMARK(CHACHA20_256BYTES, benchmark::PriorityLevel::HIGH);
BENCHMARK(CHACHA20_1MB, benchmark::PriorityLevel::HIGH);
BENCHMARK(FSCHACHA20POLY1305_64BYTES, benchmark::PriorityLevel::HIGH);
BENCHMARK(FSCHACHA20POLY1305_256BYTES, benchmark::PriorityLevel::HIGH);
BENCHMARK(FSCHACHA20POLY1305_1MB, benchmark::PriorityLevel::HIGH);
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