Proofs for ideas

Readme.md

Ephemeral Patents

• Hash: e132645f3c2072e44769b025b338b2e649e743140ad14e7fd846cf005c5f672f Date: 25-02-2020
• Hash: 4d4814b2978635d27efb0b0eefa248f6b5514e13d26d78671c8ec9bddf3fc1cf Date: 25-02-2020

source.js

import {createHash, randomBytes} from 'crypto'

function sha256(...args) {
  const hash = createHash('sha256')
  for (const value of args) {
    hash.update(value)
  }
  return hash.digest()
}

export function createProof(message) {
  const entropy = randomBytes(32)
  const hash = sha256(entropy, message)
  return {
    hash: hash.toString('hex'),
    entropy: entropy.toString('hex'),
  }
}

export function verifyProof({
  message,
  hash,
  entropy,
}) {
  const checksum = sha256(Buffer.from(entropy, 'hex'), message)
  return checksum.compare(Buffer.from(hash, 'hex')) === 0
}