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《Computer Engineering and Design》 2006-01
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Research of digital credentials selective disclosure

YANG Chun,CAO Tian-jie,ZHANG Yong-ping(College of Computer Science and Technology,China University of Mining and Technology,Xuzhou 221008,China)  
X.509v3 is the most wildly used standard of digital credentials in current days.But there still are some security limitations in it.On the base of its important reality significance,the background knowledge of digital credentials and their disadvantage was in-troduced.And the existing solution was analyzed.To fix the drawback of storage space,Merkle tree algorithm was proposed.And the demerit of Merkle tree was also analyzed.Considering the probability of each field in the digital credentials,the Huffman tree algorithm was proposed.At last,3 methods were simply compared.
【CateGory Index】: TP393.08
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