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// Author: cirakg & claude ai
// Summary: Benchmarks of the crypto and OTP primitives; logs BENCH lines for docs/PERFORMANCE.md, never fails.
//
// Simulator timings run on the PC's CPU, so they only compare primitives with
// each other (for example how much SHA-512 costs against native SHA-1).
// Watch timings come from the on-watch benchmark in M4.
import Toybox.Lang;
import Toybox.System;
import Toybox.Test;
(:test)
module Bench {
// Run fn `times` times and log the average in microseconds.
function measure(logger as Test.Logger, name as String, times as Number, fn as Method() as Void) as Void {
var start = System.getTimer();
for (var i = 0; i < times; i++) {
fn.invoke();
}
var elapsed = System.getTimer() - start;
logger.debug("BENCH " + name + " us_per_call=" + (elapsed * 1000 / times));
}
class Cases {
var secret20 as ByteArray = new [20]b;
var secret64 as ByteArray = new [64]b;
var keys as SealedBox.Keys = new SealedBox.Keys(new [32]b);
var box as ByteArray = []b;
function initialize() {
box = SealedBox.seal(keys, []b, new [20]b);
}
function totpSha1() as Void {
Otp.totp(Hashes.SHA1, secret20, 1700000000l, 30, 6);
}
function totpSha256() as Void {
Otp.totp(Hashes.SHA256, secret20, 1700000000l, 30, 6);
}
function totpSha512() as Void {
Otp.totp(Hashes.SHA512, secret64, 1700000000l, 30, 6);
}
function pbkdf2Thousand() as Void {
Kdf.pbkdf2([1, 2, 3, 4, 5, 6]b, new [16]b, 1000, 32);
}
function sealOpen() as Void {
SealedBox.open(keys, []b, SealedBox.seal(keys, []b, new [20]b));
}
function selfTest() as Void {
SelfTest.run();
}
}
}
(:test)
function benchmarkPrimitives(logger as Test.Logger) as Boolean {
var c = new Bench.Cases();
Bench.measure(logger, "totp_sha1", 20, c.method(:totpSha1));
Bench.measure(logger, "totp_sha256", 20, c.method(:totpSha256));
Bench.measure(logger, "totp_sha512", 20, c.method(:totpSha512));
Bench.measure(logger, "pbkdf2_1000_iterations", 3, c.method(:pbkdf2Thousand));
Bench.measure(logger, "sealedbox_seal_open", 20, c.method(:sealOpen));
Bench.measure(logger, "self_test", 3, c.method(:selfTest));
return true;
}
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