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:
Nov. 18, 2008
Filed:
Apr. 22, 2003
Frederick S. M. Herz, Warrington, PA (US);
Yael Gertner, Champaign, IL (US);
Craig Martell, San Juan Bautista, CA (US);
Sampath Kannan, Philadelphia, PA (US);
Frederick S. M. Herz, Warrington, PA (US);
Yael Gertner, Champaign, IL (US);
Craig Martell, San Juan Bautista, CA (US);
Sampath Kannan, Philadelphia, PA (US);
Other;
Abstract
An encryption scheme that uses steganography includes an encryption algorithm that encrypts messages by embedding them in a data stream in such a way that an adversary cannot get information about the messages. Since the embedding is the only computation required, this scheme is optimal in computational efficiency. However, since the size of the data stream is large, this scheme is most beneficial when the cost of bandwidth is less expensive than the cost of computation. The scheme embeds the message as specified by a pseudo random generator.