Computer Science ›› 2012, Vol. 39 ›› Issue (10): 94-98.
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Abstract: In order to effectively verify X. 509v4 attribute certificate after part of attributes is removed, a fine-grained disclosure scheme is proposed. In this scheme, every attribute in certificate is pretreated, and digital signature of the pretreated results was generated by attribute authority. In different scenarios,uncorrelated attributes is removed from certificate and essential validation information is calculated by certification owner. I}he validation information and digital signature in certificate can be used to validate legitimacy of the attributes disclosed. The scheme has some characteristics as follows : strong compatibility, good flexibility, high security and little additional cost
Key words: Attribute certificate, Fincgrained, Dual signature, Dark feature attribute, Hash tree
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