Algorithm independent cryptographic key management apparatus
April 23, 2013. 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 ReferencesCryptographic verification of operational keys used in communication networks Flexible mode DES system Multiple-destinational cryptosystem for broadcast networks Fast real-time public key cryptography System for enciphering and deciphering data Security system for SSTV encryption Hierarchical key management system Secure management of keys using control vectors Method and apparatus for controlling the use of a public key, based on the level of import integrity for the key Dummy traffic generation InventorsAssigneeApplicationNo. 052438 filed on 04/23/1993US Classes:380/273, Rekeying system380/46, Nonlinear (e.g., pseudorandom)380/274, Synchronization380/285By public key methodExaminersPrimary: Cangialosi, SalvatoreAttorney, Agent or FirmInternational ClassH04L 009/08AbstractAn apparatus for secure communications contains a controller for automatically selecting one of several data ciphering devices utilizing one of a plurality of ciphering algorithms common to transmitting and receiving terminals. A transmitter for transmitting encrypted data, and a receiver for receiving encrypted data are coupled to the plurality of ciphering devices. The controller automatically determines which of the ciphering devices to employ for any given secure communication. The method for establishing a secure communications link includes the steps of exchanging a first message for determining a common key generation and ciphering method and comparing a further shared message for validation of communications terminal security. Additionally, the steps of trading a still further message for providing data to form traffic keys to initialize key generators, interchanging an additional message for synchronizing and verifying synchronization of secure communications between secure communications terminals, and initiating secure communication are used.Other References
Field of SearchNonlinear (e.g., pseudorandom) | |
