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An Efficient Hierarchical Identity-based Signature Scheme

Lei Guo, Defa Hu


According to the hierarchical identity based encryption scheme proposed by Boneh et al., this paper utilizes bilinear pairings technique design a hierarchical in the standard model of signature schemes based on identity. The size of signature in the scheme is a constant and does not relative to hierarchy depth of the signer. In the last, we analyze the security of the scheme and prove that this scheme is existential unforgeable against selective identity, selective chosen message attack in terms of the hardness of DHI problem which is so difficult.


Hierarchical identity based signature, Bilinear pairing, Diffie-Hellman Inversion problem.

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