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Server authentication using multiple authentication chains

  • US 20170289137A1
  • Filed: 03/31/2016
  • Published: 10/05/2017
  • Est. Priority Date: 03/31/2016
  • Status: Active Grant
First Claim
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1. A method to authenticate a server to a client, the server having an associated public key, comprising:

  • associating “

    n”

    distinct certificates to the server'"'"'s public key, each of the “

    n”

    distinct certificates being issued by a distinct certificate authority (CA);

    responsive to the client initiating a request for a secure channel to the server, providing the client the “

    n”

    distinct certificates; and

    responsive to receipt from the client of an indication that the public key satisfies a client public key acceptance policy, establishing the secure channel between the client and the server;

    the client public key acceptance policy specifying a required number of valid, non-overlapping certificate chains that must be present to satisfy a client threshold level of trust.

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