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26 septembre 2012
- handle: 10670/1.ke1q2s
- hal: hal-01551717
- doi: 10.1007/978-3-642-33260-9_3
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info:eu-repo/semantics/altIdentifier/doi/10.1007/978-3-642-33260-9_3
http://creativecommons.org/licenses/by/ , info:eu-repo/semantics/OpenAccess
Mots-clés
Information protection general access structure cryptographic access control certificate-based cryptosystemsSujets proches
Control, Access Investors Shareholders Natural science Sciences Science of scienceCiter ce document
Tomasz Hyla et al., « Certificate-Based Encryption Scheme with General Access Structure », HAL-SHS : sciences de l'information, de la communication et des bibliothèques, ID : 10.1007/978-3-642-33260-9_3
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Résumé
The protection of sensitive information is very important, but also a difficult task. It usually requires a centralised access policy management and control system. However, such solution is often not acceptable in the era of users’ mobility. In the paper we propose a certificate-based group-oriented encryption scheme with an effective secret sharing scheme based on general access structure. The special design of the scheme ensures that the shared secret (encryption key information), a collection of shareholders, and the access structure can be dynamically changed without the need to update the long-term keys and shares owned by shareholders. It is also possible to delegate the access rights to another member of the qualified subgroup or to a new entity from outside the current access structure.