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:
Apr. 14, 2015
Filed:
Jul. 24, 2014
Elliptic Technologies Inc., Kanata, CA;
Elliptic Technologies Inc., Kanata, Ontario, CA;
Abstract
A system for generating random key stream cipher texts passes an unencrypted random key stream through an AES engine to produce encrypted cipher text having a first block size in a first frequency domain; converts the encrypted cipher text in the first frequency domain to encrypted cipher text in a second frequency domain; and converts the encrypted cipher text having the first block size in the second frequency domain into smaller block sizes. The frequency in the first frequency domain is preferably lower than the frequency in the second frequency domain. The converting of the encrypted cipher text in the first frequency domain to encrypted cipher text in a second frequency domain may be effected by a dual clock domain FIFO.