Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Hitless manual cryptographic key refresh in secure packet networks










Image Number 6 for United States Patent #8082441.

In a hitless manual cryptographic key refresh scheme, a state machine is independently maintained at each network node. The state machine includes a first state, a second state, and a third state. In the first state, which is the steady state, a current cryptographic key is used both for generating signatures for outgoing packets and for authenticating signatures of incoming packets. In the second state, which is entered when a new cryptographic key is provisioned, the old (i.e. formerly current) key is still used for generating signatures for outgoing packets, however one or, if necessary, both of the old key and the newly provisioned key is used for authenticating signatures of incoming packets. In the third state, the new key is used for generating signatures for outgoing packets and either one or both of the old key and new key are used for authenticating signatures of incoming packets.








 
 
  Recently Added Patents
Magnetic storage apparatus
Methods and compositions for wound healing
Display screen of a mobile terminal or portion thereof with a graphical user interface
Vectorization of program code
Lighting apparatus
Block copolymer nanoparticle compositions
Power consumption management in a MIMO transceiver and method for use therewith
  Randomly Featured Patents
Modular welding machine
Weld joint
Bottle
Method and apparatus for securing and authenticating encoded data and documents containing such data
Method for synthesis of iriduim (III) complexes with sterically demanding ligands
Tube-to-plate connection
Shock wave generator for an apparatus for non-contacting disintegration of calculi in the body of a life form
Container
Barking tool
Absorbent article having a multi-dimensionally contoured barrier cuff