Dual Counter Mode

Dual Counter Mode

Method of Packet Encryption that Allows for Pipelining

Dual Counter Mode is a codebook encryption mode that combines features of several previous modes to get the advantages of each while eliminating their flaws. The use of two keystreams enables the encryption mode to be pipelined in hardware, unlike other modes that only allow pipelining on decryption. Pipelining is a more efficient method of encryption that allows packets to be decrypted as soon as they are received, preventing packets from bottlenecking and slowing down network performance.

 

Abstract: 

Click to view PDFs of these patents on the US Patent and Trademark Office website: Patent 7,406,595

applications: 
  • High-speed data transmissions
  • Encrypted Asynchronous Transfer Mode (ATM) or other packet-based networks
Patent Number: 
7,406,595
Patent Issue Date: 
July 29, 2008
Email: 
tech_transfer@nsa.gov
Lab Representatives
Share to Facebook Share to Twitter Share to Google Plus Share to Linkedin