| 摘要 |
A system (10) for managing cryptographic operations on behalf of a plurality of user entities (12,13) located remotely from the system (10). The system (10) comprises storage means (14) for storing cryptographic material for each of the user entities (12,13); interface means for receiving a request to perform one or more cryptographic operations from one of said plurality of user entities (12,13) and authentication information for identifying the user entity associated with the request; authentication means for identifying the user entity (12,13) based on said authentication information; and cryptography means for retrieving from said storage means cryptographic material for the user entity (12,13) as identified by the authentication means, and for performing the cryptographic operation (s) requested by the user entity (12,13) using said cryptographic material.
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