1 / 3

Requesting Anonymous Certificates

Delivering Anonymous Certificates Presented to: IDTrust2009 Presented by: James L. Fisher (jlf@...org) Date: April 16, 2009. Requesting Anonymous Certificates. Anonymous CA. Authorizer (Z). User. Request for anon key pair + cert = f( assignedGroup, Encr z (trueID) ).

moanna
Download Presentation

Requesting Anonymous Certificates

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Delivering Anonymous CertificatesPresented to: IDTrust2009Presented by: James L. Fisher (jlf@...org)Date: April 16, 2009

  2. Requesting Anonymous Certificates Anonymous CA Authorizer (Z) User • Request for anon key pair + cert= f( assignedGroup, Encrz(trueID) ) • Authorization request= f( Encrz(trueID) ) • Decr( Encrz(trueID) ) • Too many requests? • Authorization granted • Generate & sendanon key pair + cert • Has authZ to act • Knows which anon keyssent • Does not know whoreceived them • Checks eligibility • Knows requestor’s ID • Does not know anonkeys sent “Two to collude”

  3. Requesting Anonymous Certificates Anonymous CA Authorizer (Z) User • Request for anon key pair + cert= f( assignedGroup, Encrz(trueID) ) • Authorization request= f( Encrz(trueID) ) • Decr( Encrz(trueID) ) • Too many requests? • AuthZn granted • Generate & sendanon key pair + cert • Has authZ to act • Knows which anon keyssent • Does not know whoreceived them • Checks eligibility • Knows requestor’s ID • Does not know anonkeys sent “Two to collude”

More Related