node-cryptonight-old-hardware

node bindings for cryptonight hashing on old hardware that does not support AES-NI extensions

Cryptonight hashing functions for node.js.

Recommended for usage on old hardware, prefer using node-cryptonight on modern hardware and production.

Supports cryptonight variant: 0, 1, 2 and 4.

Installation

npm install --save node-cryptonight-old-hardware

Testing

Code is linted with standard and tested with Jest. Run npm test to lint and run tests.

Usage Examples

Synchronous Hashing

const cryptonight = require('node-cryptonight-old-hardware').hash
const hash = cryptonight(Buffer.from('This is a test'))
console.log(hash) // <Buffer a0 84 f0 1d 14 37 ..>

Synchronous Hashing with variant 1

const cryptonight = require('node-cryptonight-old-hardware').hash
const hash = cryptonight(Buffer.from('This is a test'), 1)
console.log(hash) // <Buffer a0 84 f0 1d 14 37 ..>

Synchronous Hashing with variant 4 and height 123

const cryptonight = require('node-cryptonight-old-hardware').hash
const hash = cryptonight(Buffer.from('This is a test'), 4, 123)
console.log(hash) // <Buffer a0 84 f0 1d 14 37 ..>

Asynchronous Hashing

const cryptonight = require('node-cryptonight-old-hardware').asyncHash
cryptonight(Buffer.from('This is a test'), hash => {
  console.log(hash) // <Buffer a0 84 f0 1d 14 37 ..>
})

Asynchronous Hashing with variant 1

const cryptonight = require('node-cryptonight-old-hardware').asyncHash
cryptonight(Buffer.from('This is a test'), 1, hash => {
  console.log(hash) // <Buffer a0 84 f0 1d 14 37 ..>
})

Asynchronous Hashing with variant 4 and height 123

const cryptonight = require('node-cryptonight-old-hardware').asyncHash
cryptonight(Buffer.from('This is a test'), 4, 123, hash => {
  console.log(hash) // <Buffer a0 84 f0 1d 14 37 ..>
})

Promise Wrapper Example

function cryptonight(data) {
  return new Promise((resolve, reject) => {
    require('node-cryptonight').asyncHash(data, hash => {
      resolve(hash)
    })
  })
}

cryptonight(Buffer.from('This is a test'))
  .then(console.log) // <Buffer a0 84 f0 1d 14 37 ..>

See Also

Following libraries have similar API with AES-NI support:

• node-cryptonight
• node-cryptonight-lite

Hashing algorithm implementations are provided by:

• xmrig

License

Released under the 3-Clause BSD License. Contains code from the Monero project. See LICENSE for more information.