DaoCasino/bankroller-core

import cryptico   from 'js-cryptico'

const parseBigInt = (a, b) => {
  return new cryptico.RSAKey().parseInt(a, b)
}

export default class RSA {
  constructor (publickExponent = '10001') {
    this.RSA = new cryptico.RSAKey()
    this.publicExponent = publickExponent
  }

  // Method for creation private RSA keys for sign (for Bankroller)
  generateRSAkey (long = 2048) {
    this.RSA.generate(long, this.publicExponent)
  }

  // Sign rawMsg
  signHash (message) {
    let msg = parseBigInt(message, 16)
    msg = msg.mod(this.RSA.n)
    return this.RSA.doPrivate(msg)
  }
}