发明名称 Lightweight document access control using access control lists in the cloud storage or on the local file system
摘要 A system for controlling access to an encrypted document in which a computer receives a request to access the encrypted document, the access request comprising a user ID and a user password. The computer performs a one-way hash function on the user password to generate a hash value. The computer searches an access control table for the hash value which indicates an authorization for the user to access the encrypted document and corresponds to a document password encrypted with the user password. The computer decrypts the document password using the user password. The computer decrypts the encrypted document using the decrypted document password.
申请公布号 GB201212460(D0) 申请公布日期 2012.08.29
申请号 GB20120012460 申请日期 2012.07.13
申请人 INTERNATIONAL BUSINESS MACHINES CORPORATION 发明人
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