Yogesh Chauhan's Blog

Crypto.getRandomValues() method in JavaScript

in JavaScript on October 12, 2020

The Crypto.getRandomValues() method lets you generate strong random values. 

It's not using a truly random number generator, but a pseudo-random number generator.

getRandomValues() is the only member of the Crypto.

As per MDN notes, "Don't use getRandomValues() to generate encryption keys. Instead, use the generateKey() method. There are a few reasons for this; for example, getRandomValues() is not guaranteed to be running in a secure context."

Example


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