Bitcoin Core  0.20.99
P2P Digital Currency
chacha20.cpp
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1 // Copyright (c) 2019 The Bitcoin Core developers
2 // Distributed under the MIT software license, see the accompanying
3 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
4 
5 
6 #include <bench/bench.h>
7 #include <crypto/chacha20.h>
8 
9 /* Number of bytes to process per iteration */
10 static const uint64_t BUFFER_SIZE_TINY = 64;
11 static const uint64_t BUFFER_SIZE_SMALL = 256;
12 static const uint64_t BUFFER_SIZE_LARGE = 1024*1024;
13 
14 static void CHACHA20(benchmark::Bench& bench, size_t buffersize)
15 {
16  std::vector<uint8_t> key(32,0);
17  ChaCha20 ctx(key.data(), key.size());
18  ctx.SetIV(0);
19  ctx.Seek(0);
20  std::vector<uint8_t> in(buffersize,0);
21  std::vector<uint8_t> out(buffersize,0);
22  bench.batch(in.size()).unit("byte").run([&] {
23  ctx.Crypt(in.data(), out.data(), in.size());
24  });
25 }
26 
28 {
29  CHACHA20(bench, BUFFER_SIZE_TINY);
30 }
31 
33 {
35 }
36 
37 static void CHACHA20_1MB(benchmark::Bench& bench)
38 {
40 }
41 
static const uint64_t BUFFER_SIZE_SMALL
Definition: chacha20.cpp:11
static const uint64_t BUFFER_SIZE_LARGE
Definition: chacha20.cpp:12
static void CHACHA20_256BYTES(benchmark::Bench &bench)
Definition: chacha20.cpp:32
A class for ChaCha20 256-bit stream cipher developed by Daniel J.
Definition: chacha20.h:13
static void CHACHA20(benchmark::Bench &bench, size_t buffersize)
Definition: chacha20.cpp:14
Bench & run(char const *benchmarkName, Op &&op)
Repeatedly calls op() based on the configuration, and performs measurements.
Definition: nanobench.h:1134
static secp256k1_context * ctx
Definition: tests.c:36
static void CHACHA20_64BYTES(benchmark::Bench &bench)
Definition: chacha20.cpp:27
static void CHACHA20_1MB(benchmark::Bench &bench)
Definition: chacha20.cpp:37
BENCHMARK(CHACHA20_64BYTES)
static const uint64_t BUFFER_SIZE_TINY
Definition: chacha20.cpp:10
Main entry point to nanobench&#39;s benchmarking facility.
Definition: nanobench.h:583
ANKERL_NANOBENCH(NODISCARD) std Bench & batch(T b) noexcept
Sets the batch size.