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Attribute-based data access control scheme with secure revocation in fog computing for smart grid
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DOI：10.1007/s10586-022-03616-0.png)
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摘要
En 中文
Smart grid requires sharing sensitive data to external researchers. Attribute encryption is a common technique used in data sharing. Unfortunately, existing revocation mechanisms do not consider the following two issues. One is that the revoked user may save intermediate values computed in the past to illegally decrypt the updated cipher text. The other is that the update parameters of keys can be leaked to the revoked user, which leads to revocation failure. To address the above issues, we propose a verifiable outsourcing decryption and data sharing scheme, in which we introduce version parameters of ciphertexts and keys, and associate the update parameters of keys with each user to achieve security-enhanced revocation. In addition, a formal security proof is given under the DBDH assumption. Finally, we evaluate the performance of the scheme and the results show that the proposed scheme is more effective than current schemes.
Keyword:
Attribute-based encryption
Dynamic group data sharing
Fog computing
Secure revocation
Smart grid
期刊
C
IF:
4.1
论文数:
5.1K
被引数:
7.5K
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分享收藏New directly revocable attribute-based encryption scheme and its application in cloud storage environment一种新的可直接撤销的属性基加密方案及其在云存储环境中的应用
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