| 摘要 |
A data carrier comprising computer data for generating validity or invalidity proofs for digital certificates in consecutive periods of time, each digital certificate certifying that a cryptographic key is associated with an entity, wherein different proofs are operable to be generated for different periods of time, the computer data comprising first computer data for proofs for a first time interval comprising a first predefined number of the periods of time, wherein the first time interval is greater than a minimum validity period for certificates to be used with the first computer data. |
