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
System and method for reducing antivirus false positives
System and method for wireless messaging in a wireless communication system
Vertical gate LDMOS device
Tread portion of an automobile tire
Magnetic levitation motor used in lens module
Substituted thiophene pentamers
Adaptive switch mode LED system
  Randomly Featured Patents
Preparation of trimethoxybenzoate salts and trimethoxybenzoic acid
Protein that enhances expression of potassium channels on cell surfaces and nucleic acids that encode the same
Air-fuel ratio feedback control system including at least downstreamside air-fuel ratio sensor
User interface for a portable telecommunication device
Method of lowering blood lipid levels
N-type calcium channel antagonists for the treatment of pain
Snowboard carry strap
Drive device for a piston in a container containing an injectable product
2.2 Dichloro -1,1,-difluoroethyl-1,2,2,2- tetrofluoroethyl ether as an inhalation anesthetic
Self-contained air freshener and cartridge therefor