頁籤選單縮合
| 題 名 | Reducing Space for Storing Keys in a Single Key Access Control System |
|---|---|
| 作 者 | Jan,J. K.; Lee,J. C.; Lin,C. H.; Chang,Chin-chen; | 書刊名 | 淡江理工學刊 |
| 卷 期 | 3:4 2000.12[民89.12] |
| 頁 次 | 頁229-241 |
| 分類號 | 448.94 |
| 關鍵詞 | File protection; Access control; Single-key scheme; Access control matrix; |
| 語 文 | 英文(English) |
| 英文摘要 | Jan proposed a mechanism that fulfils the requirement of a single key-lock (SKL for short) information protection system. Using Jan’s SKL method, each user is given a key, each file a sequence number, and an operating on the key of a user with the sequence number of a file yields the user’s corresponding access privilege on the file. In Jan’s literature, a formula to compute each user’s key for a given set of assigned sequence numbers and a set of corresponding access privileges is also provided. However, different assignments of sequence numbers to the secured files will yield different keys. In this paper, an efficient way to assign a set of sequence numbers to the set of files such that the maximal key value is minimized is presented. |
本系統中英文摘要資訊取自各篇刊載內容。