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:
Oct. 09, 2007
Filed:
May. 31, 2002
Applicant:
Satish N. Anand, Chandler, AZ (US);
Inventor:
Satish N. Anand, Chandler, AZ (US);
Assignee:
ITT Manufacturing Enterprises, Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04K 1/00 (2006.01); H04L 9/28 (2006.01); H04L 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A system and method for implementing the Triple Data Encryption Algorithm (TDEA) for the Data Encryption Standard (DES) using merger ciphers is provided which may be configured to operate in the chain block cipher (CBC) mode. Data blocks are enciphered using less computations in the critical timing path significantly reducing the time required for each round of ciphering. Two permutation function (Ef) elements () operate separately during each ciphering round eliminating an XOR operation from the critical path.