Function arrayBufferToUnsignedBigInt

lib/internal/crypto/random.js:560–572

* @param {ArrayBuffer} buf An ArrayBuffer. * @returns {bigint}

(buf)

 * @returns {bigint}
 */
function arrayBufferToUnsignedBigInt(buf) {
  const length = ArrayBufferPrototypeGetByteLength(buf);
  const chars = Array(length * 2);
  const view = new DataView(buf);

  for (let i = 0; i < length; i++) {
    const val = DataViewPrototypeGetUint8(view, i);
    chars[2 * i] = numberToHexCharCode(val >> 4);
    chars[2 * i + 1] = numberToHexCharCode(val & 0xf);
  }

  return BigInt(`0x${StringFromCharCodeApply(chars)}`);
}

function unsignedBigIntToBuffer(bigint, name) {
  if (bigint < 0) {