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Nowadays, virtual private network has become more and more significant for internet users. As one of the key techniques among VPN architecture, the implementation of data encryption algorithm is playing an important role. In this paper, we implements a Chinese encryption algorithm SM4 towards network flows based on Tilera-Gx multiprocessor, considering some of the features of the processor: SIMD and...
Kim proposed a novel method to detect image copies based on DCT coefficients and ordinal measure. This method had a good ability to resist various signal and local geometric manipulations. However, Kim's method was based on block units, which would lead to an insufficient precision. In order to solve the problem, on the basis of Kim's method, we use an extended feature set which takes advantage of...
Traditional deduplication technologies can only eliminate exactly the same images and are unavailable for duplicate images. In order to solve this problem, we propose a duplicate image deduplication approach based on Haar wavelet. The proposed approach employs Haar wavelet decomposition to extract feature vectors of images, and exploits the Manhattan distance of feature vectors to judge the similarity...
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