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:
Apr. 05, 2005
Filed:
Nov. 04, 2002
Sekar Chandersekaran, Potomac, MD (US);
Sohail Malik, Gaithersburg, MD (US);
Michael Muresan, Gaithersburg, MD (US);
Narayanan Vasudevan, Gaithersburg, MD (US);
Sekar Chandersekaran, Potomac, MD (US);
Sohail Malik, Gaithersburg, MD (US);
Michael Muresan, Gaithersburg, MD (US);
Narayanan Vasudevan, Gaithersburg, MD (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An apparatus, method, and computer program product for achieving interoperability between cryptographic key recovery enabled and unaware systems. The method includes the steps of encrypting data using a cryptography key to generate ciphertext; generating a key recovery block containing key recovery information for the ciphertext; determining whether a receiver for the ciphertext is key recovery unaware; and sending the key recovery block to a key recovery client when it is determined that the receiver is key recovery unaware. In a preferred embodiment, the ciphertext is sent to the receiver only after receiving confirmation from the key recovery client of the receipt of the key recovery block. Also in a preferred embodiment, the key recovery block is sent as part of an Internet Message Control Protocol (ICMP) message.