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'use strict';
const common = require('../common.js');
const {
createHash,
webcrypto,
} = require('crypto');
const { subtle } = webcrypto;
const bench = common.createBenchmark(main, {
sync: ['createHash', 'subtle'],
data: [10, 20, 50, 100],
method: ['SHA-1', 'SHA-256', 'SHA-384', 'SHA-512'],
n: [1e3],
});
const kMethods = {
'SHA-1': 'sha1',
'SHA-256': 'sha256',
'SHA-384': 'sha384',
'SHA-512': 'sha512'
};
// This benchmark only looks at clock time and ignores factors
// such as event loop delay, event loop utilization, and memory.
// As such, it is expected that the synchronous legacy method
// will always be faster in clock time.
function measureLegacy(n, data, method) {
method = kMethods[method];
bench.start();
for (let i = 0; i < n; ++i) {
createHash(method).update(data).digest();
}
bench.end(n);
}
function measureSubtle(n, data, method) {
const ec = new TextEncoder();
data = ec.encode(data);
const jobs = new Array(n);
bench.start();
for (let i = 0; i < n; i++)
jobs[i] = subtle.digest(method, data);
Promise.all(jobs).then(() => bench.end(n)).catch((err) => {
process.nextTick(() => { throw err; });
});
}
function main({ n, sync, data, method }) {
data = webcrypto.getRandomValues(Buffer.alloc(data));
switch (sync) {
case 'createHash': return measureLegacy(n, data, method);
case 'subtle': return measureSubtle(n, data, method);
}
}
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