An Improved Identification Scheme
نویسندگان
چکیده
M. Kim and K. Kim [1] introduce a new identification scheme based on the Gap Diffie-Hellman problem, and prove that the scheme is secure against active attacks if the Gap Diffie-Hellman problem is intractable. But, their identification scheme is NOT secure. In this paper, we give the reason that why the scheme is not secure, and we also modify the scheme such that the modified scheme is secure against active attacks if the Gap Diffie-Hellman problem is intractable. Keyword: identification scheme, Weil pairing, Gap-problem
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