CODEWITHSUNDEEP
javascriptnode.jsbuffercryptojs
Moiz Ahmed
Moiz Ahmed

Reputation: 131

Replacement for Crypto Random Bytes function in Javascript

Currently trying to generate a random buffer of size x in javascript/node/typescript, seems like the most common way to do this is using the crypto library

However, I'm having compilation issues with this library, as I'm using a bundler for a browser extension. Gives me the following error Failed to resolve 'stream' from '/Users/moizahmed/Documents/node\_modules/cipher-base/index.js'

I'm also only using one function from the crypto library, the randomBytes function, and was wondering if I could do this all without the use of a library?

Seems pretty trivial in other languages, not sure how to get this in javascript without the crypto library

Upvotes: 0

Views: 2077

Answers (1)

Moiz Ahmed
Moiz Ahmed

Reputation: 131

Here's a potential work around which I've currently implemented

const randomBytes = () => {
    function randomString(length, chars) {
        var result = '';
        for (var i = length; i > 0; --i) result += chars[Math.floor(Math.random() * chars.length)];
        return result;
    }
    var rString = randomString(4, '0123456789abcdefghijklmnopqrstuvwxyz');
    const buf1 = Buffer.from(rString, 'hex');
    return buf1
}

Seems to get the job done, but curious as to whether there's better solutions

Upvotes: 1

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