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Host certification method and system

  • US 20030185395A1
  • Filed: 08/27/2001
  • Published: 10/02/2003
  • Est. Priority Date: 08/27/2001
  • Status: Active Grant
First Claim
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1. A method of authenticating a device, the method comprising:

  • receiving a certificate from the device, the certificate including a plurality of fields, including a field holding a digital signature from a certifying authority;

    verifying the digital signatures in the certificate, the verifying including at least one of;

    verifying the certifying authority digital signature using the certifying authority public key; and

    verifying a device digital signature using a device public key; and

    receiving validation data from a source, the validation data identifying one or more data in the certificate as valid or invalid according to predetermined criteria; and

    if the digital signatures are verified and validated, transmitting a session key to the device to establish a secure communication channel.

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