SYSTEM FOR AND METHOD OF VERIFYING AUTHENTICITY OF A DOCUMENT SOURCE
Publication Date: 2001-May-04
The IP.com Prior Art Database
The present invention describes a system for and method of verifying the authenticity of a document source by fingerprinting the document with a unique message digest. The method creates a signature file for the document source, applies the message digest algorithm to produce a unique message digest, appends the message digest to both the signature file and the document, and provides the signature file and message digest algorithm to the document source. The provider is able to verify authenticity of ownership by using the message digest algorithm on the signature file to reproduce a message digest that is identical to the message digest appended to the document.