计算机时代
計算機時代
계산궤시대
Computer Era
2015年
10期
39-40
,共2页
数据库%水印%密钥分存技术%算法
數據庫%水印%密鑰分存技術%算法
수거고%수인%밀약분존기술%산법
database%watermark%secret sharing technology%algorithm
分析密钥分存技术下的数据库水印算法,对水印嵌入以及水印提取算法进行探讨,提出一种基于密钥分存技术的数据库水印算法,通过仿真实验验证其可靠性.在数据库2/5比例元组被删除条件下,应用该算法可恢复得到完整数字水印;为提高数据库对元组删除攻击的抵抗性,可提高n值并减少t值,以实现对删除元组最大值门限的优化.实验证明,该算法能够提高水印提取与存放安全性,提高数据库水印的抗攻击能力.
分析密鑰分存技術下的數據庫水印算法,對水印嵌入以及水印提取算法進行探討,提齣一種基于密鑰分存技術的數據庫水印算法,通過倣真實驗驗證其可靠性.在數據庫2/5比例元組被刪除條件下,應用該算法可恢複得到完整數字水印;為提高數據庫對元組刪除攻擊的牴抗性,可提高n值併減少t值,以實現對刪除元組最大值門限的優化.實驗證明,該算法能夠提高水印提取與存放安全性,提高數據庫水印的抗攻擊能力.
분석밀약분존기술하적수거고수인산법,대수인감입이급수인제취산법진행탐토,제출일충기우밀약분존기술적수거고수인산법,통과방진실험험증기가고성.재수거고2/5비례원조피산제조건하,응용해산법가회복득도완정수자수인;위제고수거고대원조산제공격적저항성,가제고n치병감소t치,이실현대산제원조최대치문한적우화.실험증명,해산법능구제고수인제취여존방안전성,제고수거고수인적항공격능력.
By analyzing the secret sharing technology database watermarking algorithm, the watermark embedding and watermark extraction algorithm are discussed. A new algorithm based on the secret sharing technology is proposed, and the reliability is verified by simulation experiments. Under the condition of 2/5 proportion of tuples of database deleted, application of the algorithm can fully recover the digital watermark; To improve the database's tuple deletion attack resistance, can increase the n value and reduce the t value, in order to achieve the optimization of deleted tuple maximum threshold. Experiments show that the proposed algorithm can improve the security of watermark extraction and storage, and enhance the ability of the database watermarking attack resistance.
