UUID V5 Node.js

uuid-v5.js

function uuid5(data) {
  var out = crypto.createHash('sha1').update(data).digest();

  out[8] = out[8] & 0x3f | 0xa0; // set variant
  out[6] = out[6] & 0x0f | 0x50; // set version

  var hex = out.toString('hex', 0, 16);

  return [
    hex.substring( 0,  8),
    hex.substring( 8, 12),
    hex.substring(12, 16),
    hex.substring(16, 20),
    hex.substring(20, 32)
  ].join('-');
}