All files / src keys.js

90.91% Statements 10/11
50% Branches 1/2
100% Functions 4/4
90.91% Lines 10/11

Press n or j to go to the next uncovered block, b, p or k for the previous block.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28          15x     15x       13x 13x       47x 47x 47x 47x       28x 28x    
/* @flow */
import { randomBytes } from 'crypto'
import { ECPair, address as baddress, crypto as bcrypto } from 'bitcoinjs-lib'
 
export function getEntropy(numberOfBytes: number) {
  Iif (!numberOfBytes) {
    numberOfBytes = 32
  }
  return randomBytes(numberOfBytes)
}
 
export function makeECPrivateKey() {
  const keyPair = new ECPair.makeRandom({ rng: getEntropy })
  return keyPair.privateKey.toString('hex')
}
 
export function publicKeyToAddress(publicKey: string) {
  const publicKeyBuffer = Buffer.from(publicKey, 'hex')
  const publicKeyHash160 = bcrypto.hash160(publicKeyBuffer)
  const address = baddress.toBase58Check(publicKeyHash160, 0x00)
  return address
}
 
export function getPublicKeyFromPrivate(privateKey: string) {
  const keyPair = ECPair.fromPrivateKey(Buffer.from(privateKey, 'hex'))
  return keyPair.publicKey.toString('hex')
}