Automatic encryption selector
Patent 5199069 Issued on March 30, 1993. Estimated Expiration Date: 
February 25, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 25, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesSolid state key for controlling access to computer systems and to computer software and/or for secure communications Cryptographic method and apparatus with electronically redefinable algorithm System and method for transmitting entertainment information to authorized ones of plural receivers Patent #: 5091938 InventorsAssigneeApplicationNo. 660186 filed on 02/25/1991US Classes:380/28, PARTICULAR ALGORITHMIC FUNCTION ENCODING380/2, EQUIPMENT TEST OR MALFUNCTION INDICATION380/47, Plural generators380/270, Wireless communication380/277KEY MANAGEMENTExaminersPrimary: Buczinski, Stephen C.Attorney, Agent or FirmInternational ClassesH04K 001/00H04K 009/00 H04L 009/02 AbstractA radio (100) capable of automatically selecting an encryption algorithm from among a plurality of algorithms (122 and 124) is disclosed. The method for automatically selecting the proper encryption hybrid includes the steps of: attempting to decrypt the encrypted signal with one of the plurality of encryption algorithms; determining if the encryption algorithm used to decrypt the encrypted signal matches the encryption algorithm used by the encrypted signal; and developing a control signal upon the proper matching of the encryption algorithms. | |
