Patent ID: 8073782

Claim:
A computer-implemented method of enhancing shipping security of a postal service associated with the receipt from a sender of a piece for shipping, the method comprising: confirming an identification of the sender of the piece; utilizing a computer, producing and affixing to the piece a crypto round date stamp containing a post office physical location and zip code in human readable form where the piece was received; utilizing the computer, producing and affixing to the piece encryption indicia located within the crypto round data stamp, wherein the encryption indicia comprises a two-dimensional barcode, the encryption indicia including: an identification of the sender; the location where the piece was received; an employee identification number of an employee of the postal service who received the piece from the sender; an identification of a generator generating a two-dimensional barcode; the time that the piece was received from the sender; utilizing the computer, authenticating the human readable information contained in the crypto round date stamp with information included in the two-dimensional barcode; utilizing the computer, scanning the crypto round date stamp for the employee identification number of the employee of the postal service who received the piece from the sender and detecting collusion by the employee; and utilizing the computer, preventing the collusion using the employee identification number.