Method and system for dynamic issuance of group certificates
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United States of America Patent
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Apr 19, 2005
Grant Date -
N/A
app pub date -
May 10, 1999
filing date -
May 10, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
In accordance with the invention, on-line group servers issue group membership or group non-membership certificates upon request. Furthermore, when a requester requests a group certificate for a particular entity, the associated group server makes a dynamic decision regarding the entity's membership in the group rather than simply referring to a membership list. These capabilities provide for, among other things, the implementation of 'nested' groups, wherein an entity may indirectly prove membership in a first, or nested, group by proving membership in a second group which is a member of the first group. In the nested group situation, the dynamic decision may involve the group server of the nested group obtaining proof of the entity's membership or non-membership in the second group. Proof of membership or non-membership may include a group certificate and/or a group membership list.
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