US2002046337A1PendingUtilityA1

Tree-based certificate revocation system

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Priority: Nov 2, 1995Filed: Sep 6, 2001Published: Apr 18, 2002
Est. expiryNov 2, 2015(expired)· nominal 20-yr term from priority
Inventors:Silvio Micali
H04L 9/50H04L 2209/30H04L 2209/60H04L 9/3268H04L 9/3236G06Q 20/02
45
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Claims

Abstract

A method and system for overcoming the problems associated with certificate revocation lists (CRL's), for example, in a public key infrastructure. The invention uses a tree-based scheme to replace the CRL.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
         1 . A method for an intermediary to prove to an end user that certificate information is authenticated by an authority, comprising the steps of: 
 (a) obtaining at least a portion of an authenticated tree having certificate nodes corresponding to certificate values indicative of the information; and    (b) causing the end user to receive at least one of the following values: certificate values, authenticating values of certificate values, and one or more node values authenticated by an authority.

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