NodeJS `Buffer` is cool
lionel-rowe

lionel-rowe @lionelrowe

Joined:
May 19, 2019

NodeJS `Buffer` is cool

Publish Date: Mar 16 '23
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function displayBufferContents(buf) {
    const byteString = Array.from(new Uint8Array(buf.buffer), (byte) =>
        String.fromCharCode(byte),
    ).join('')

    return byteString.replaceAll(/\u0000+/g, (m) => `{...${m.length}}`)
}

const secretKeyBuffer = Buffer.from('SECRET KEY PLEASE DO NOT STEAL')

displayBufferContents(Buffer.from('arbitrary text'))
// /{...7}/{...7}SECRET KEY PLEASE DO NOT STEAL{...2}arbitrary text{...8130}
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cool

Credit to @paulmillr on GitHub:

For the record, there are 800+ public code cases on GH that use Buffer.from(privateKey). Imagine how private repositories look like and what other secrets are stored there (symmetric keys, etc)

https://github.com/search?q=Buffer.from%28privateKey&type=code

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