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�������պ����ѧѧ�� 2007, Vol. 33 Issue (12) :1477-1480    DOI:
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1. �������պ����ѧ �����ѧԺ, ���� 100083;
2. �������ӿƼ���ѧ �ۺ�ҵ���������ص�ʵ����, ���� 710071
Disclosing method for protecting sensitive certificate
Jiang Zhengtao1, Huai Jinpeng1, Wang Yumin2*
1. School of Computer Science and Technology, Beijing University of Aeronautics and Astronautics, Beijing 100083, China;
2. National Key Lab. of Integrated Service Networks, Xidian University, Xi-an 710071, China

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Abstract�� Further investigations on the problem of disclosing sensitive attribute certificate were provided. To enhance its security assurance, cryptographic mechanisms were utilized and a certificate disclosure scheme based on which was proposed, which realized the following characteristics: At last resource demander submits part of all of her attribute certificates to the resource provider; Resource provider can receive that part of attribute certificates and he cannot get any information of the rest; Resource demander cannot get any information on which attribute certificates does the provider really get or interest; With this scheme and according to their realized agreements, they can arrange a set of different bounds for the different attribute. For any attribute, the condition that the attribute certificate can be obtained or validated only when the number of the provider participant (or limit) exceed or equal to the corresponding bound, which can protect part of right and privacy of both sides.
Keywords�� sensitive attribute certificate   resource accessing   certificate disclosure   privacy protection     
Received 2006-12-26;
Fund:

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About author: ������(1976��),��,ɽ���ൺ��,��ʿ��,jiangzt@act.buaa.edu.cn.
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Jiang Zhengtao, Huai Jinpeng, Wang Yumin.Disclosing method for protecting sensitive certificate[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2007,V33(12): 1477-1480
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