发明名称 |
LIGHTWEIGHT DOCUMENT ACCESS CONTROL USING ACCESS CONTROL LISTS IN THE CLOUD STORAGE OR ON THE LOCAL FILE SYSTEM |
摘要 |
In a method for controlling access to an encrypted document, 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 |
CA2776182(A1) |
申请公布日期 |
2013.02.23 |
申请号 |
CA20122776182 |
申请日期 |
2012.05.07 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BROWN, DOUGLAS S.;KELLEY, JOHN F.;SEAGER, TODD;TORRES, ROBERT J. |
分类号 |
G06F21/62;H04L9/32;H04L12/58 |
主分类号 |
G06F21/62 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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