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Public-key encryption with keyword search (PEKS) is a versatile tool. It allows a third party knowing the search trapdoor of a keyword to search encrypted documents containing that keyword without decrypting the documents or knowing the keyword. However, it is shown that the keyword will be compromised by a malicious third party under a keyword guess attack (KGA) if the keyword space is in a polynomial...
Web services over the Internet are widely used nowadays. The problem of secure access to Web-based systems is of great importance naturally. Compared with the existing models, the action-based access control (ABAC) model is the most suitable to control the access on Web services. In this paper, the ABAC model is introduced. Then, the security architecture of ABAC for Web services is proposed. In the...
As the aggregation of information, database system is the core part of computer information system. The security of the database system is of great importance, as the important resource of the Website, the security of its account is even more a focus of network security. According to the encrypt and encryption algorithm characteristics of database, to protect the security of database account , method...
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