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  • License MIT

Pure JavaScript implementation of the scrypt key deriviation function that is fully compatible with Node.js and the browser.

Package Exports

  • scryptsy

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (scryptsy) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

scryptsy

build status Coverage Status Version

scryptsy is a pure Javascript implementation of the scrypt key derivation function that is fully compatible with Node.js and the browser (via Browserify).

Why?

Scrypt is an integral part of many crypto currencies. It's a part of the BIP38 standard for encrypting private Bitcoin keys. It also serves as the proof-of-work system for many crypto currencies, most notably: Litecoin and Dogecoin.

Installation

npm install --save scryptsy

Example

var scrypt = require('scryptsy')

var key = "pleaseletmein"
var salt = "SodiumChloride"
var data = scrypt(key, salt, 16384, 8, 1, 64)
console.log(data.toString('hex'))
// => 7023bdcb3afd7348461c06cd81fd38ebfda8fbba904f8e3ea9b543f6545da1f2d5432955613f0fcf62d49705242a9af9e61e85dc0d651e40dfcf017b45575887

API

scrypt(key, salt, N, r, p, keyLenBytes, [progressCallback])

  • key: The key. Either Buffer or string.
  • salt: The salt. Either Buffer or string.
  • N: The number of iterations. number (integer)
  • r: Memory factor. number (integer)
  • p: Parallelization factor. number (integer)
  • keyLenBytes: The number of bytes to return. number (integer)
  • progressCallback: Call callback on every 1000 ops. Passes in {current, total, percent} as first parameter to progressCallback().

Returns Buffer.

Resources

License

MIT