• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Services Computing, IEEE Transactions on >Full Verifiability for Outsourced Decryption in Attribute Based Encryption
【24h】

Full Verifiability for Outsourced Decryption in Attribute Based Encryption

机译：基于属性的加密中的外包解密的全部验证性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Attribute based encryption (ABE) is a popular cryptographic technology to protect the security of users’ data. However, the decryption cost and ciphertext size restrict the application of ABE in practice. For most existing ABE schemes, the decryption cost and ciphertext size grow linearly with the complexity of access structure. This is undesirable to the devices with limited computing capability and storage space. Outsourced decryption is considered as a feasible method to reduce the user's decryption overhead, which enables a user to outsource a large number of decryption operations to the cloud service provider (CSP). However, outsourced decryption cannot guarantee the correctness of transformation done by the cloud, so it is necessary to check the correctness of outsourced decryption to ensure security for users’ data. Current research mainly focuses on verifiability of outsourced decryption for the authorized users. It still remains a challenging issue that how to guarantee the correctness of outsourced decryption for unauthorized users. In this paper, we propose an ABE scheme with verifiable outsourced decryption (called full verifiability for outsourced decryption), which can simultaneously check the correctness for transformed ciphertext for the authorized users and unauthorized users. The proposed ABE scheme with verifiable outsourced decryption is proved to be selective CPA-secure in the standard model.
机译：基于属性的加密（ABE）是一种流行的加密技术，可以保护用户数据的安全性。但是，解密成本和密文大小限制了ABE在实践中的应用。对于大多数现有的ABE方案，解密成本和密文大小随着访问结构的复杂性而线性地增长。这对于具有有限的计算能力和存储空间的设备是不希望的。外包解密被认为是可行的减少用户解密开销的可行方法，这使得用户能够将大量解密操作外包给云服务提供商（CSP）。但是，外包解密不能保证云所做的转换的正确性，因此有必要检查外包解密的正确性，以确保用户数据的安全性。目前的研究主要侧重于授权用户的外包解密的可验证性。它仍然是一个具有挑战性的问题，如何保证未经授权用户的外包解密的正确性。在本文中，我们提出了一个具有可验证外包解密（称为外包解密的完整可验证）的ABE方案，可以同时检查授权用户和未经授权用户的转换密文的正确性。拟议的ABE方案，具有可验证外包解密的拟议的ABE方案是在标准模型中选择性CPA-SECUE。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号