Run results for: Math.random vs crypto.getRandom

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; SM-N960N Build/QP1A.190711.020; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/85.0.4183.81 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/286.0.0.48.112;]

Browser: Chrome Mobile 85

Operating system: Android

Device Platform: Mobile

Date tested: 3 years ago

Test name	Executions per second
Math.random()	2460051.0 Ops/sec
crypto.getRandomValues()	104861.8 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()