Patent 7890757 was granted and assigned to Novell on February, 2011 by the United States Patent and Trademark Office.
Techniques for assuring a receiver's non repudiation of a communication are provided. A sender encrypts data pursuant to a key. The encrypted data is sent to a receiver. A key to decrypt the data is sent separately to the receiver. The sender ensures the proper verifying information is acquired from the receiver for both the encrypted data and for the key.