https://github.com/exodusmovement/buffer-noise

Expand a buffer to a specified length.
https://github.com/exodusmovement/buffer-noise

Last synced: 3 months ago
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Expand a buffer to a specified length.

• Host: GitHub
• URL: https://github.com/exodusmovement/buffer-noise
• Owner: ExodusMovement
• License: mit
• Created: 2017-04-05T20:20:49.000Z (about 8 years ago)
• Default Branch: master
• Last Pushed: 2023-05-12T23:00:11.000Z (about 2 years ago)
• Last Synced: 2024-04-14T13:10:04.025Z (about 1 year ago)
• Language: JavaScript
• Size: 12.7 KB
• Stars: 1
• Watchers: 31
• Forks: 3
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE

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README

        
# buffer-noise

[![npm](https://img.shields.io/npm/v/buffer-noise.svg)](https://npmjs.com/package/buffer-noise)

[![GitHub Actions Status](https://img.shields.io/github/workflow/status/ExodusMovement/buffer-noise/CI/master)](https://github.com/ExodusMovement/buffer-noise/actions/workflows/ci.yml?query=branch%3Amaster)

Expand a buffer to a specified length. If the buffer is smaller than the specified length, the remaining space is filled with random bytes. A 32-bit Unsigned Big-Endian Integer containing the length of the data is always prepended to the buffer.

This module can be used for obfuscating an encrypted file's size for plausible deniability.

## Installation

    npm install buffer-noise

## Usage

```js

const size = 25

const { expand, shrink } = require('buffer-noise')(size)

const data = Buffer.from('Hello World!')

const newData = expand(data)

console.log(data, newData)

// Prints:

// 

// 

assert(newData.length === size)

assert(shrink(newData).equals(data))

```

## License

MIT