const cc = require('five-bells-condition') const crypto = require('crypto') const preimageData = crypto.randomBytes(32) const myFulfillment = new cc.PreimageSha256() myFulfillment.setPreimage(preimageData) console.log('Condition:', myFulfillment.getConditionBinary().toString('hex').toUpperCase()) console.log('Fulfillment:', myFulfillment.serializeBinary().toString('hex').toUpperCase())