npst-luke-12.js

const { step, assemble } = require('@pstnorge/slede8')

const getProgram = (requiredChars) => {
  return `.DATA 0x51,0x00,0x61,0x01,0xa1,0x00,0xb1,0x01,0xc1,0x00,0x83,0x03,0x91,0x${requiredChars.toString(16)},0x06,0x02,0x04,0x03,0x72,0x05,0x55,0x67,0x25,0x72,0x25,0x32,0x15,0x2c,0x52,0x06,0x62,0x07,0x65,0xb9,0x55,0xb0,0x17,0xa9,0xe9,0x00,0x07,0xac,0x29,0x03,0xb3,0x05,0x1a,0x06,0x00,0x00,0x23,0x05,0x1a,0x06,0x00,0x00,0x51,0x51,0x57,0x7e,0x6e,0x64,0x77,0x12,0x59,0x38,0xf3,0x8a,0x48,0x3d,0xeb,0x53,0x7d,0x21,0x5c,0xaf,0x1c,0xae,0x50,0x25,0x55,0x3f,0x4b,0x6f,0x72,0x72,0x65,0x6b,0x74,0x21,0x00,0x46,0x65,0x69,0x6c,0x21,0x00,0x04,0x02,0x07,0xa2,0xd9,0x06,0x16,0x02,0x55,0xb0,0x18,0x06,0x0b,0x00`
}

const getRange = (start, end) => {
  const range = []
  for (let year = start; year < end + 1; year++) {
    range.push(year)
  }
  return range
}

const fromHexString = hexString => new Uint8Array(hexString.match(/.{1,2}/g).map(byte => parseInt(byte, 16)))
const chars = getRange(32, 126).map(code => String.fromCharCode(code))

const prefix = 'PST{'
const suffix = '}'
const passwordlength = 26
const actuallLength = passwordlength - (prefix.length) - (suffix.length)

let password = `${prefix}`
for (let col = 0; col < actuallLength; col++) {
  const assembled = assemble(getProgram(password.length + 1))

  for (let i = 0; i < chars.length; i++) {
    const char = chars[i]
    const fode = fromHexString(Buffer.from(`${password}${char}`).toString('hex'))

    const program = step(assembled.exe, fode)
    let state = {}
    do {
      state = program.next()
    } while (!state.done)

    console.log(`${password}${char} = ${state.value.stdout.toString()}`)

    // If not "Feil!"
    if (state.value.stdout.toString() !== '70,101,105,108,33') {
      password += char
      break
    }
  }
}

console.log('\n🥁 🥁 🥁 🥁 🥁 🥁 🥁 🥁 🥁 🥁 🥁 🥁\n')
console.log(`Nøkkelen er: ${password + suffix}`)
console.log(`Heks: ${Buffer.from(password + suffix).toString('hex')}`)