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《Acta Electronica Sinica》 2009-S1
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DMSS-Dynamic Merkle Authentication-tree Signature

CAI Yong-quan,LIU Fang(College of Computer Science and Technology,Beijing University of Technology,Beijing 100124,China)  
We achieve a dynamic update of the authentication-tree through creating the sub tree and dynamic update of the key.In the original signature,the number of the signature influence the scale of the authentication-tree,and the increase of the number of signature makes lower efficient.In our scheme,the number of signature is not affected by the scale of the authentication-tree.In addition,the paper do a safety analysis to the improved authentication Merkle tree signature,the results show that the signature of the improver Merkle authentication is as safe as the original Merkle authentication signature tree,and as used key management according the time,the The signature also has forward-secure.
【Fund】: 国家973重点基础研究计划(No.2007CB11106)
【CateGory Index】: TP393.08
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