Partially hidden policy multi-authority CP-ABE scheme with constant length ciphertext
To solve the problems of low security and high resource overhead of existing hidden policy ciphertext policy attribute-based encryption (CP-ABE) schemes, a partially hidden policy multi-authority CP-ABE scheme with constant length ciphertext was proposed. Firstly, the values of the attributes in the...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2024-08-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2024142/ |
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| _version_ | 1841539215973679104 |
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| author | LIU Yilong XU Shengwei YUE Ziyan |
| author_facet | LIU Yilong XU Shengwei YUE Ziyan |
| author_sort | LIU Yilong |
| collection | DOAJ |
| description | To solve the problems of low security and high resource overhead of existing hidden policy ciphertext policy attribute-based encryption (CP-ABE) schemes, a partially hidden policy multi-authority CP-ABE scheme with constant length ciphertext was proposed. Firstly, the values of the attributes in the access policy were hidden, enabling the proposed scheme to reduce the risk of private data leakage. Secondly, by fixing the ciphertext length and using outsourcing decryption techniques, the resource overhead for the user was reduced in the proposed scheme. Finally, the multi-authority management mechanism was used so that the proposed scheme avoided the key escrow problem that can easily arise when using a single authoritative authority. The security analysis proves that the proposed scheme satisfies the indistinguishability under chosen plaintext attack in the standard model, as well as the scheme’s hidden access policy and the generated outsourcing key can resist attribute value guessing attack. The overall resource overhead of the proposed scheme is proven to be lower by comparing its performance with the existing schemes. |
| format | Article |
| id | doaj-art-93ab35278d6b47ad9690bfbea81dda8b |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2024-08-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-93ab35278d6b47ad9690bfbea81dda8b2025-01-14T07:24:58ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2024-08-0145203669426468Partially hidden policy multi-authority CP-ABE scheme with constant length ciphertextLIU YilongXU ShengweiYUE ZiyanTo solve the problems of low security and high resource overhead of existing hidden policy ciphertext policy attribute-based encryption (CP-ABE) schemes, a partially hidden policy multi-authority CP-ABE scheme with constant length ciphertext was proposed. Firstly, the values of the attributes in the access policy were hidden, enabling the proposed scheme to reduce the risk of private data leakage. Secondly, by fixing the ciphertext length and using outsourcing decryption techniques, the resource overhead for the user was reduced in the proposed scheme. Finally, the multi-authority management mechanism was used so that the proposed scheme avoided the key escrow problem that can easily arise when using a single authoritative authority. The security analysis proves that the proposed scheme satisfies the indistinguishability under chosen plaintext attack in the standard model, as well as the scheme’s hidden access policy and the generated outsourcing key can resist attribute value guessing attack. The overall resource overhead of the proposed scheme is proven to be lower by comparing its performance with the existing schemes.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2024142/CP-ABEpolicy partially hiddenconstant ciphertext lengthmulti-authorityoutsourcing decryption |
| spellingShingle | LIU Yilong XU Shengwei YUE Ziyan Partially hidden policy multi-authority CP-ABE scheme with constant length ciphertext Tongxin xuebao CP-ABE policy partially hidden constant ciphertext length multi-authority outsourcing decryption |
| title | Partially hidden policy multi-authority CP-ABE scheme with constant length ciphertext |
| title_full | Partially hidden policy multi-authority CP-ABE scheme with constant length ciphertext |
| title_fullStr | Partially hidden policy multi-authority CP-ABE scheme with constant length ciphertext |
| title_full_unstemmed | Partially hidden policy multi-authority CP-ABE scheme with constant length ciphertext |
| title_short | Partially hidden policy multi-authority CP-ABE scheme with constant length ciphertext |
| title_sort | partially hidden policy multi authority cp abe scheme with constant length ciphertext |
| topic | CP-ABE policy partially hidden constant ciphertext length multi-authority outsourcing decryption |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2024142/ |
| work_keys_str_mv | AT liuyilong partiallyhiddenpolicymultiauthoritycpabeschemewithconstantlengthciphertext AT xushengwei partiallyhiddenpolicymultiauthoritycpabeschemewithconstantlengthciphertext AT yueziyan partiallyhiddenpolicymultiauthoritycpabeschemewithconstantlengthciphertext |