Run results for: Math.random vs crypto.getRandom

Run details:

User agent: Mozilla/5.0 (Linux; Android 11; SAMSUNG SM-G973N) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/15.0 Chrome/90.0.4430.210 Mobile Safari/537.36

Browser: Chrome Mobile 90

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

Test name	Executions per second
Math.random()	3854321.0 Ops/sec
crypto.getRandomValues()	90653.9 Ops/sec

Tests:

Math.random()
Math.random()
crypto.getRandomValues()
crypto.getRandomValues(new Uint32Array(1))[0] / 4294967296

Run results for: Math.random vs crypto.getRandom

Math.random()

crypto.getRandomValues()