Offline methods for authentication in a client/server authentication system

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United States of America Patent

PATENT NO 9876793
SERIAL NO

15063010

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method for providing authentication of a user of a recipient unit when the recipient unit is off-line includes storing one or a plurality of one-time challenge-reply sets based on an on-line communication with a sender unit. In one example, each of the one-time challenge-reply sets includes at least a one-time challenge-reply pair for use in off-line authentication of the user for a particular resource available through the recipient unit. When the user is offline, the method includes selecting at least one of the plurality of stored one-time challenge-reply sets for off-line authentication of the user for the particular resource available through the recipient unit. The one-time challenge-reply sets may be associated with an article.

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Patent Owner(s)

  • ENTRUST, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
McCulligh, Murray Ottawa, CA 6 127
Smith, Marc Ottawa, CA 9 189
Voice, Chris Ottawa, CA 7 598
Zuccherato, Robert Ajax, CA 5 119

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