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題 名 | 另一種關連式資料庫加解密法=Yet Another Encryption Method for the Relational Database System |
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作 者 | 詹進科; 王嶢仁; | 書刊名 | 電腦學刊 |
卷 期 | 9:1 1997.03[民86.03] |
頁 次 | 頁42-54 |
分類號 | 312.76 |
關鍵詞 | 關連式資料庫; 置換; 重排; 區塊加密; Relational database; Substitution; Permutation; Block cipher; |
語 文 | 中文(Chinese) |
中文摘要 | 本文提出一種新的資料庫加密法。其主旨乃是將置換、重排、區塊加密等方法整 合,以達到關連式資料庫之安全加解密的功能。本法之特點為針對不同的記錄,使用不同的 密匙做加密,因而提高了明文攻擊的困難度。此外,本文利用簡單之運算達成資料安全的目 的,節省作業之時間,以確保加解密效率。透過對密文資料量的事前掌控,避免明文擴充之 弊。簡言之,在安全、效率及空間三方面,本法皆有一定程度之滿足。 |
英文摘要 | In this paper, we propse a new encryption method for the relational data bases based upon substitution, permutation and block cipher. Each block is encrypted by different keys and that makes known-plaintext attack more difficult. All the operations we need are XOR and permutation. The space which a encrypted record needs is almost the same as a planintext record. Our scheme not only encrypts the data records for security but also avoids plaintext-extension and does operations efficiently. |
本系統中英文摘要資訊取自各篇刊載內容。