A Practical Attribute-Based Document Collection Hierarchical Encryption Scheme in Cloud Computing
Ciphertext-policy attribute-based encryption can provide fine-grained access control and secure data sharing to the data users in cloud computing. However, the encryption/decryption efficiency of existing schemes can be further improved when encrypting a large document collection. In this paper, we...
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| Format: | Article |
| Language: | English |
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IEEE
2019-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/8667830/ |
| _version_ | 1819179306655416320 |
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| author | Junsong Fu Na Wang |
| author_facet | Junsong Fu Na Wang |
| author_sort | Junsong Fu |
| collection | DOAJ |
| description | Ciphertext-policy attribute-based encryption can provide fine-grained access control and secure data sharing to the data users in cloud computing. However, the encryption/decryption efficiency of existing schemes can be further improved when encrypting a large document collection. In this paper, we propose a practical Ciphertext-Policy Attribute-Based Hierarchical document collection Encryption scheme named CP-ABHE. By practical, we mean that CP-ABHE is more efficient in both computation and storage space without sacrificing data security. In CP-ABHE, we first construct a set of integrated access trees based on the documents' attribute sets. We employ the greedy strategy to build the trees incrementally and grow the trees dynamically by combining the small ones. Then, all the documents on an integrated access tree are encrypted together. Different to existing schemes, the leaves in different access trees with the same attribute share the same secret number, which is employed to encrypt the documents. This greatly improves the performance of CP-ABHE. The security of our scheme is theoretically proved based on the decisional bilinear Diffie-Hellman assumption. The simulation results illustrate that CP-ABHE performs very well in terms of security, efficiency, and the storage size of the ciphertext. |
| first_indexed | 2024-12-22T21:56:21Z |
| format | Article |
| id | doaj.art-a1c03260fbcd47c5aca12be87a42f13b |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-22T21:56:21Z |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-a1c03260fbcd47c5aca12be87a42f13b2022-12-21T18:11:15ZengIEEEIEEE Access2169-35362019-01-017362183623210.1109/ACCESS.2019.29053468667830A Practical Attribute-Based Document Collection Hierarchical Encryption Scheme in Cloud ComputingJunsong Fu0Na Wang1https://orcid.org/0000-0002-8687-8820School of Cyberspace Security, Beijing University of Posts and Telecommunications, Beijing, ChinaSchool of Computer Science, Beijing University of Posts and Telecommunications, Beijing, ChinaCiphertext-policy attribute-based encryption can provide fine-grained access control and secure data sharing to the data users in cloud computing. However, the encryption/decryption efficiency of existing schemes can be further improved when encrypting a large document collection. In this paper, we propose a practical Ciphertext-Policy Attribute-Based Hierarchical document collection Encryption scheme named CP-ABHE. By practical, we mean that CP-ABHE is more efficient in both computation and storage space without sacrificing data security. In CP-ABHE, we first construct a set of integrated access trees based on the documents' attribute sets. We employ the greedy strategy to build the trees incrementally and grow the trees dynamically by combining the small ones. Then, all the documents on an integrated access tree are encrypted together. Different to existing schemes, the leaves in different access trees with the same attribute share the same secret number, which is employed to encrypt the documents. This greatly improves the performance of CP-ABHE. The security of our scheme is theoretically proved based on the decisional bilinear Diffie-Hellman assumption. The simulation results illustrate that CP-ABHE performs very well in terms of security, efficiency, and the storage size of the ciphertext.https://ieeexplore.ieee.org/document/8667830/Cloud computingattribute-based document collection encryptionencryption/decryption efficiencyinformation security |
| spellingShingle | Junsong Fu Na Wang A Practical Attribute-Based Document Collection Hierarchical Encryption Scheme in Cloud Computing IEEE Access Cloud computing attribute-based document collection encryption encryption/decryption efficiency information security |
| title | A Practical Attribute-Based Document Collection Hierarchical Encryption Scheme in Cloud Computing |
| title_full | A Practical Attribute-Based Document Collection Hierarchical Encryption Scheme in Cloud Computing |
| title_fullStr | A Practical Attribute-Based Document Collection Hierarchical Encryption Scheme in Cloud Computing |
| title_full_unstemmed | A Practical Attribute-Based Document Collection Hierarchical Encryption Scheme in Cloud Computing |
| title_short | A Practical Attribute-Based Document Collection Hierarchical Encryption Scheme in Cloud Computing |
| title_sort | practical attribute based document collection hierarchical encryption scheme in cloud computing |
| topic | Cloud computing attribute-based document collection encryption encryption/decryption efficiency information security |
| url | https://ieeexplore.ieee.org/document/8667830/ |
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