Computer Science ›› 2012, Vol. 39 ›› Issue (8): 67-69.
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Abstract: By using bilinear pairings technique, this paper presented a hierarchical identity based signature scheme in the standard model according to hierarchical identity based encryption scheme proposed by 13onch et al. hhe size of signature in the scheme is a constant and regardless of hierarchy depth of the signer. In the last, we proved the scheme is existen- tial unforgcable against selective identity, selective chosen message attack in terms of the hardness of DHI problem.
Key words: Hierarchical identity based signature,I3ilinear pairing,Diffie-hellman inversion problem
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