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af2b44c76e
Add a benchmark for FSChaCha20Poly1305 encryption, so the overhead of key generation and authentication can be observed for various message sizes.
75 lines
2.2 KiB
C++
75 lines
2.2 KiB
C++
// Copyright (c) 2019-2022 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include <bench/bench.h>
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#include <crypto/chacha20.h>
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#include <crypto/chacha20poly1305.h>
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/* Number of bytes to process per iteration */
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static const uint64_t BUFFER_SIZE_TINY = 64;
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static const uint64_t BUFFER_SIZE_SMALL = 256;
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static const uint64_t BUFFER_SIZE_LARGE = 1024*1024;
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static void CHACHA20(benchmark::Bench& bench, size_t buffersize)
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{
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std::vector<uint8_t> key(32,0);
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ChaCha20 ctx(key.data());
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ctx.Seek64({0, 0}, 0);
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std::vector<uint8_t> in(buffersize,0);
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std::vector<uint8_t> out(buffersize,0);
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bench.batch(in.size()).unit("byte").run([&] {
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ctx.Crypt(in.data(), out.data(), in.size());
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});
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}
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static void FSCHACHA20POLY1305(benchmark::Bench& bench, size_t buffersize)
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{
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std::vector<std::byte> key(32);
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FSChaCha20Poly1305 ctx(key, 224);
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std::vector<std::byte> in(buffersize);
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std::vector<std::byte> aad;
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std::vector<std::byte> out(buffersize + FSChaCha20Poly1305::EXPANSION);
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bench.batch(in.size()).unit("byte").run([&] {
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ctx.Encrypt(in, aad, out);
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});
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}
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static void CHACHA20_64BYTES(benchmark::Bench& bench)
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{
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CHACHA20(bench, BUFFER_SIZE_TINY);
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}
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static void CHACHA20_256BYTES(benchmark::Bench& bench)
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{
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CHACHA20(bench, BUFFER_SIZE_SMALL);
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}
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static void CHACHA20_1MB(benchmark::Bench& bench)
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{
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CHACHA20(bench, BUFFER_SIZE_LARGE);
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}
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static void FSCHACHA20POLY1305_64BYTES(benchmark::Bench& bench)
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{
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FSCHACHA20POLY1305(bench, BUFFER_SIZE_TINY);
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}
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static void FSCHACHA20POLY1305_256BYTES(benchmark::Bench& bench)
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{
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FSCHACHA20POLY1305(bench, BUFFER_SIZE_SMALL);
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}
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static void FSCHACHA20POLY1305_1MB(benchmark::Bench& bench)
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{
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FSCHACHA20POLY1305(bench, BUFFER_SIZE_LARGE);
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}
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BENCHMARK(CHACHA20_64BYTES, benchmark::PriorityLevel::HIGH);
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BENCHMARK(CHACHA20_256BYTES, benchmark::PriorityLevel::HIGH);
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BENCHMARK(CHACHA20_1MB, benchmark::PriorityLevel::HIGH);
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BENCHMARK(FSCHACHA20POLY1305_64BYTES, benchmark::PriorityLevel::HIGH);
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BENCHMARK(FSCHACHA20POLY1305_256BYTES, benchmark::PriorityLevel::HIGH);
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BENCHMARK(FSCHACHA20POLY1305_1MB, benchmark::PriorityLevel::HIGH);
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