Cryptology ePrint Archive: Report 2007/042

Authorship Proof for Textual Document

J. Wu and D. R. Stinson

Abstract: In this paper, we investigate the problem of how to prove the authorship of textual documents. First we define the basic functionalities of an authorship proof scheme (APS) based on natural language watermarking, and identify two essential security requirements for an APS to be secure against various attacks. We review existing natural language watermarking schemes, and we propose two new schemes with improved security.

Category / Keywords: applications / watermarking

Date: received 9 Feb 2007, last revised 24 Apr 2007

Contact author: j32wu at cs uwaterloo ca

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Version: 20070424:181241 (All versions of this report)

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