Some of the inventive concepts described herein include a data key having a computer readable medium containing information indicative of a bitting pattern for a master key. The bitting pattern on the data key may be downloadable to a key cutting device to cut a duplicate key that has the same bitting pattern as the master key. In addition, a method of creating a data key is also provided herein. The method includes identifying a type of key; identifying a bitting pattern; and storing the type of key blank required and bitting pattern to be cut in the key blank on a computer readable medium.