Add ChaCha20Poly1305@Bitcoin AEAD benchmark
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@ -22,6 +22,7 @@ bench_bench_bitcoin_SOURCES = \
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bench/examples.cpp \
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bench/rollingbloom.cpp \
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bench/chacha20.cpp \
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bench/chacha_poly_aead.cpp \
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bench/crypto_hash.cpp \
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bench/ccoins_caching.cpp \
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bench/gcs_filter.cpp \
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123
src/bench/chacha_poly_aead.cpp
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123
src/bench/chacha_poly_aead.cpp
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@ -0,0 +1,123 @@
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// Copyright (c) 2019 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 <iostream>
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#include <bench/bench.h>
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#include <crypto/chacha_poly_aead.h>
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#include <crypto/poly1305.h> // for the POLY1305_TAGLEN constant
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#include <hash.h>
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#include <limits>
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#include <assert.h>
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/* Number of bytes to process per iteration */
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static constexpr uint64_t BUFFER_SIZE_TINY = 64;
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static constexpr uint64_t BUFFER_SIZE_SMALL = 256;
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static constexpr uint64_t BUFFER_SIZE_LARGE = 1024 * 1024;
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static const unsigned char k1[32] = {0};
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static const unsigned char k2[32] = {0};
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static ChaCha20Poly1305AEAD aead(k1, 32, k2, 32);
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static void CHACHA20_POLY1305_AEAD(benchmark::State& state, size_t buffersize, bool include_decryption)
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{
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std::vector<unsigned char> in(buffersize + CHACHA20_POLY1305_AEAD_AAD_LEN + POLY1305_TAGLEN, 0);
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std::vector<unsigned char> out(buffersize + CHACHA20_POLY1305_AEAD_AAD_LEN + POLY1305_TAGLEN, 0);
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uint64_t seqnr_payload = 0;
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uint64_t seqnr_aad = 0;
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int aad_pos = 0;
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uint32_t len = 0;
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while (state.KeepRunning()) {
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// encrypt or decrypt the buffer with a static key
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assert(aead.Crypt(seqnr_payload, seqnr_aad, aad_pos, out.data(), out.size(), in.data(), buffersize, true));
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if (include_decryption) {
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// if we decrypt, include the GetLength
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assert(aead.GetLength(&len, seqnr_aad, aad_pos, in.data()));
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assert(aead.Crypt(seqnr_payload, seqnr_aad, aad_pos, out.data(), out.size(), in.data(), buffersize, true));
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}
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// increase main sequence number
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seqnr_payload++;
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// increase aad position (position in AAD keystream)
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aad_pos += CHACHA20_POLY1305_AEAD_AAD_LEN;
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if (aad_pos + CHACHA20_POLY1305_AEAD_AAD_LEN > CHACHA20_ROUND_OUTPUT) {
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aad_pos = 0;
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seqnr_aad++;
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}
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if (seqnr_payload + 1 == std::numeric_limits<uint64_t>::max()) {
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// reuse of nonce+key is okay while benchmarking.
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seqnr_payload = 0;
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seqnr_aad = 0;
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aad_pos = 0;
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}
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}
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}
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static void CHACHA20_POLY1305_AEAD_64BYTES_ONLY_ENCRYPT(benchmark::State& state)
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{
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CHACHA20_POLY1305_AEAD(state, BUFFER_SIZE_TINY, false);
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}
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static void CHACHA20_POLY1305_AEAD_256BYTES_ONLY_ENCRYPT(benchmark::State& state)
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{
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CHACHA20_POLY1305_AEAD(state, BUFFER_SIZE_SMALL, false);
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}
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static void CHACHA20_POLY1305_AEAD_1MB_ONLY_ENCRYPT(benchmark::State& state)
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{
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CHACHA20_POLY1305_AEAD(state, BUFFER_SIZE_LARGE, false);
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}
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static void CHACHA20_POLY1305_AEAD_64BYTES_ENCRYPT_DECRYPT(benchmark::State& state)
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{
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CHACHA20_POLY1305_AEAD(state, BUFFER_SIZE_TINY, true);
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}
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static void CHACHA20_POLY1305_AEAD_256BYTES_ENCRYPT_DECRYPT(benchmark::State& state)
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{
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CHACHA20_POLY1305_AEAD(state, BUFFER_SIZE_SMALL, true);
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}
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static void CHACHA20_POLY1305_AEAD_1MB_ENCRYPT_DECRYPT(benchmark::State& state)
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{
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CHACHA20_POLY1305_AEAD(state, BUFFER_SIZE_LARGE, true);
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}
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// Add Hash() (dbl-sha256) bench for comparison
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static void HASH(benchmark::State& state, size_t buffersize)
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{
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uint8_t hash[CHash256::OUTPUT_SIZE];
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std::vector<uint8_t> in(buffersize,0);
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while (state.KeepRunning())
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CHash256().Write(in.data(), in.size()).Finalize(hash);
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}
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static void HASH_64BYTES(benchmark::State& state)
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{
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HASH(state, BUFFER_SIZE_TINY);
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}
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static void HASH_256BYTES(benchmark::State& state)
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{
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HASH(state, BUFFER_SIZE_SMALL);
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}
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static void HASH_1MB(benchmark::State& state)
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{
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HASH(state, BUFFER_SIZE_LARGE);
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}
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BENCHMARK(CHACHA20_POLY1305_AEAD_64BYTES_ONLY_ENCRYPT, 500000);
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BENCHMARK(CHACHA20_POLY1305_AEAD_256BYTES_ONLY_ENCRYPT, 250000);
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BENCHMARK(CHACHA20_POLY1305_AEAD_1MB_ONLY_ENCRYPT, 340);
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BENCHMARK(CHACHA20_POLY1305_AEAD_64BYTES_ENCRYPT_DECRYPT, 500000);
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BENCHMARK(CHACHA20_POLY1305_AEAD_256BYTES_ENCRYPT_DECRYPT, 250000);
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BENCHMARK(CHACHA20_POLY1305_AEAD_1MB_ENCRYPT_DECRYPT, 340);
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BENCHMARK(HASH_64BYTES, 500000);
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BENCHMARK(HASH_256BYTES, 250000);
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BENCHMARK(HASH_1MB, 340);
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