Cryptographic verification of operational keys used in communication networks
Anti-jam communications system
Apparatus for generation of binary pseudo-random numbers
Secure component authentication system Patent #: 4799061
ApplicationNo. 723875 filed on 07/01/1991
US Classes:380/46, Nonlinear (e.g., pseudorandom)331/78, ELECTRICAL NOISE OR RANDOM WAVE GENERATOR708/250Random number generation
ExaminersPrimary: Tarcza, Thomas H.
Assistant: Cain, David
Attorney, Agent or Firm
International ClassH04L 009/00
AbstractAn improved security system is disclosed which uses an IC card to enhance the security functions involving component authentication, user verification, user authorization and access control, protection of message secrecy and integrity, management of cryptographic keys, and auditability. Both the security method and the apparatus for embodying these functions across a total system or network using a common cryptographic architecture are disclosed. Authorization to perform these functions in the various security component device nodes in the network can be distributed to the various nodes at which they will be executed in order to personalize the use of the components.