Representation and management of multiple keys. (November 2018)

• Record Type: Journal Article
• Authors: Lopriore, Lanfranco
• Is Part Of: Computers & electrical engineering. Volume 72(2018)
• Page Start: 502
• Page End: 511
• Publication Date: 2018-11
• Subjects: Key -- One-way function -- Protection -- Revocation; Computer engineering -- Periodicals; Electrical engineering -- Periodicals; Electrical engineering -- Data processing -- Periodicals; Ordinateurs -- Conception et construction -- Périodiques; Électrotechnique -- Périodiques; Électrotechnique -- Informatique -- Périodiques; Computer engineering; Electrical engineering; Electrical engineering -- Data processing; Periodicals; Electronic journals; 621.302854
• DOI: 10.1016/j.compeleceng.2018.10.012
• Languages: English
• ISSNs: 0045-7906

Abstract

Abstract: We refer to a key-based protection environment featuring active subjects and protected objects. A subject that possesses a key for a given object is allowed to access this object to carry out actions that depend on the specific application. We propose a new key model, called multiple key, or m-key for short. In this model, an m-key consists of a name, a value and a map. The name specifies a set of objects, and the value is used to validate the m-key. Possession of a valid m-key is equivalent to possession of a key for all the objects specified by the m-key name, or for a subset of these objects, as is stated by the map. A subject that holds an m-key referencing a given set of objects can transform this m-key into a weaker m-key referencing only a subset of these objects. M-key revocation is supported.