| 摘要 |
<P>PROBLEM TO BE SOLVED: To allow any user of a peer-to-peer network to request a lookup of a key and its associated value in a typical peer-to-peer network. <P>SOLUTION: A user node may register a key-value pair in a peer-to-peer network associated with an access list listing user nodes which are authorized to access the key-value pair in order to limit access to the stored key-value pair. The access list may include one or more retrieval identifiers. To further secure the information, the retrieval identifiers and/or the payload may be encrypted. To allow the retrieving user to decrypt an encrypted payload, the payload may be encrypted using a group key associated with the stored key-value pair. The group key may be encrypted using a key known to the retrieving user. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
