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Focus on this question of high verification overhead of hash tree memory protection scheme, this paper proposed a hash tree optimize method called AH-Tree. Utilizing the locality character of memory accessing, the memory is divided into two parts and an asymmetric hash tree (AH-Tree) is constructed. The advantage of AH-Tree is low average operation overhead. The analysis and experiment results proved...
Today, attackers are capable of using software or hardware methods to intrude computer network system. The phenomena of confidential information being tampered with or disclosed are emerging everywhere. Hardware-based attacks have emerged and caused tremendous losses. Focus on this question, this paper proposed new architectural mechanisms to ensure data integrity which improved previous work in this...
Focusing on the problem of high overhead and frequent overflow of counter mode encryption, this paper proposed an efficient scheme to protect data confidentiality and integrity. Based on the locality character of data accessing, the scheme set different counter length for memory area according to different accessing frequency and the counter length can be dynamic adjusted. The analysis and the simulation...
This study focuses on the faster exact single pattern string matching algorithms. In all solutions, two variants of BOM, EBOM and FBOM are very efficient. We improved them and presented two algorithms named Simplified-EBOM and Simplified-FBOM through removing the unnecessary branches and accomplishing the core calculation of the algorithm in a 1-dimensional array. The experimental results indicated...
The paper selects listed companies which were merged or acquired in 2005 as the empirical samples, chooses 24 specific indexes related to financial condition and governance structure of firms. Then the logistic regression analysis is used to establish one forecast model with 73.6 percent general accuracy basing on success rate and another with 75.3 percent general accuracy basing on M&A performance...
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