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Aliases:

Dual Counter Mode

Technical Challenge:

There are several modes of encryption in use today, but none of them combine the ability to pipeline encryption with the ability to use a simple (essentially pipelined) checksum for data integrity.

Description:

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 mode provides confidentiality and data integrity without sacrificing pipelining. It also overcomes the problem with out of order packets.

Demonstration Capability:

A demonstration is not available.

Potential Commercial Application(s):

This technology is a solution to the problem of encrypting and authenticating IPSec data between high-speed gateways and backbone routers.

Patent Status:

A patent application has been filed with USPTO.

Reference Number: 1308

If you are interested in exploring this technology further, please call 443-445-7159 or express your interest in writing to the:

National Security Agency
NSA Technology Transfer Program
9800 Savage Road, Suite 6541
Fort George G. Meade, Maryland 20755-6541