Key management system
Patent 5173938 Issued on December 22, 1992. Estimated Expiration Date: 
September 3, 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.
September 3, 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 ReferencesSecure communication system with remote key setting Key management for encryption/decryption systems Patent #: 4281216 InventorsAssigneeApplicationNo. 753454 filed on 09/03/1991US Classes:380/273, Rekeying system380/277KEY MANAGEMENTExaminersPrimary: Gregory, Bernarr E.Attorney, Agent or FirmInternational ClassH04L 009/00AbstractThis key management system effectively solves the key distribution problems of distance, time, operator error, and security risk by transferring encryption keys with appropriate system information between a key management controller (101) and a remote keyloader (109). The keyloader (109) is then coupled to a communication device to transfer (327) the keys and receive (329) identification information from the communication device. The keyloader (109) then sends (323) the information to the key management controller (101) that controls the distribution of the encryption keys and collection of the communication device identifications.Field of SearchKey sequence signal combined with data signal | |
