The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 12, 2002
Filed:
Dec. 15, 1998
Lonnie C. Goff, Tempe, AZ (US);
Steven E. Cornelius, Gilbert, AZ (US);
Philips Electronics No. America Corp., New York, NY (US);
Abstract
A cryptographic device includes a de-multiplexer, a plurality of encryption blocks, a plurality of permutation blocks, and a multiplexer. The encryption blocks encrypt data to produce encrypted data. The de-multiplexer receives data portions from a plaintext message and directs the data portions to one of the encryption blocks, based on a value within a path control session key. Each permutation block is associated with an encryption block. Each permutation block permutes encrypted data from the encryption block associated therewith. The multiplexer receives data portions from each of the plurality of permutation blocks to produce an encrypted output data stream.