Decentralized ciphertext-policy attribute-based encryption schemes for lightweight devices
| Autor: | Vinh Duc Tran, Viet Cuong Trinh, Abdullatif Shikfa, Qutaibah M. Malluhi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Computer Networks and Communications
business.industry Computer science Ciphertext-policy 020206 networking & telecommunications Access control Data_CODINGANDINFORMATIONTHEORY 02 engineering and technology Computer security computer.software_genre Encryption Lightweight devices Attribute-based encryption Ciphertext Decentralized 0202 electrical engineering electronic engineering information engineering 020201 artificial intelligence & image processing Fast decryption Multi-authority business computer Key escrow Key size |
| Popis: | In a traditional attribute-based encryption (ABE) system, there is only one central authority who generates and hence knows the secret keys of all users, this problem is known as the key escrow problem. An ABE scheme which can deal with the aforementioned problem is so-called a decentralized (or multi-authority) ABE scheme. There have been several efforts to propose decentralized ABE schemes in the literature, and these schemes can enjoy some interesting properties such as fine-grained access control and full security. However, all of them suffer from two main weaknesses that are large secret key size and slow decryption time. These weaknesses are obviously not desirable for lightweight device applications such as Internet of Things applications. In this paper, we propose two decentralized ciphertext-policy attribute-based encryption schemes. Our proposed schemes have some nice properties such as constant-size secret key, fast decryption, optimized ciphertext size and fine-grained access control. Our schemes, as a result, could be seen as a solution for lightweight device applications. For completeness, we implement our schemes and give some concrete benchmarks. - 2019 Elsevier B.V. This research is funded by Vietnam National Foundation for Science and Technology Development (NAFOSTED) under grant number 102.01-2018.301 . Scopus |
| Databáze: | OpenAIRE |
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