×

Tree-based certificate revocation system

  • US 6,097,811 A
  • Filed: 10/11/1996
  • Issued: 08/01/2000
  • Est. Priority Date: 11/02/1995
  • Status: Expired due to Term
First Claim
Patent Images

1. A method for using at least one Merkle tree for authenticating revocation status about a plurality or certificates issued by a certifying authority, comprising thc steps of:

  • (a) generating a plurality of values indicating that a plurality of certificates have been revoked, wherein for each certificate, there is at least one value indicating status of the certificate;

    (b) an entity other than the certification authority constructing at least one Merkle tree containing on a plurality of its nodes its plurality of values indicating the certificates that have been revoked; and

    (c) authenticating, with a digital signature, a root node of the at least one Merkle tree to provide an authenticated root.

View all claims
  • 8 Assignments
Timeline View
Assignment View
    ×
    ×