Enhanced Attribute-Based Proxy Re-Encryption for Home Network

This paper studies security on home network to apply access control and encryption. It is difficult to implement and run a database server for access control as individual. For both access control and encryption, home network employs a series of Attribute-Based Encryption (ABE) schemes. In a string of the encryption schemes, we apply Attribute-Based Proxy Re-Encryption (ABPRE) to the network. In our scheme, authenticated people can encrypt all the data, control access to the data and temporarily delegate their permission to another they trust implicitly. A framework we propose for the security of the network use a ticket, an arbitrary bit sequence, to protect a key to decrypt the data and to decide whether the people have been fully allowed by home gateway or authorized people. The members of the family can obtain the ticket by decrypting security message in home gateway or delegate it by re-encrypting the ticket. Periodically updated by the gateway, the ticket would be automatically expired. The representative can search and control the data by using the delegated ticket up to when the ticket is valid.