06351812 is referenced by 58 patents.
A participant (
) in electronic commerce can validate his/her own certificate (
) by accessing an authority (
) that checks whether the participant's certificate is valid. If the certificate is valid, the authority embeds with the participant's terminal (
) a block of data, in the form of a Cookie (
) that includes a plurality of attributes indicative of the certificate, for example, the certificate's date of expiration. When accessing a secure application (
), the participant presents both the certificate and the authenticating Cookie, obviating the need for a real-time inquiry to the authority, unless the Cookie is stale or missing.