Inventors:
Eric Myron Smith - Dallas TX, US
Daniel W. Engels - Colleyville TX, US
Peter Schweitzer - Watertown MA, US
Troy A. Schultz - Cambridge, CA
International Classification:
H04K 1/00, H04K 1/04, H04L 9/00, H04L 9/32
US Classification:
380 28, 380 37, 380263, 380268, 380277, 713170
Abstract:
An encryption and authentication technique that achieves enhanced integrity verification through assured error-propagation using a multistage sequence of pseudorandom permutations. The method generates intermediate data-dependent cryptographic variables at each stage, which are systematically combined into feedback loops. The encryption technique also generates an authentication tag with minimal post processing that is the size of the state.