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:
May. 09, 2000
Filed:
Jun. 27, 1997
Sohail malik, Gaithersburg, MD (US);
Michael Muresan, Gaithersburg, MD (US);
International Business Machines Corp., Armonk, NY (US);
Abstract
A method is disclosed for communicating a key recovery block from a sender to a non-enabled receiver, without the danger of throwing the receiver into an indeterminant state, and without modifying the receiver. The method uses an unmodified communications protocol that has a standard method to receive and acknowledge arbitrary data. The sender sends a message using the standard method for arbitrary data, and includes in the message the key recovery block. The receiver responds with a standard acknowledgment message. The method thereby enables an entity coupled to the link, to monitor the key recovery block, even though the receiver is not enabled to process it.