Abstract
A signature system is said to be strongly unforgeable if the signature is existentially unforgeable and, given signatures on some message m, the adversary cannot produce a new signature on m. Strongly unforgeable signatures are used for constructing chosen-ciphertext secure systems and group signatures. Current efficient constructions in the standard model (i.e. without random oracles) depend on relatively strong assumptions such as Strong-RSA or Strong-Diffie-Hellman. We construct an efficient strongly unforgeable signature system based on the standard Computational Diffie-Hellman problem in bilinear groups.
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Boneh, D., Shen, E., Waters, B. (2006). Strongly Unforgeable Signatures Based on Computational Diffie-Hellman. In: Yung, M., Dodis, Y., Kiayias, A., Malkin, T. (eds) Public Key Cryptography - PKC 2006. PKC 2006. Lecture Notes in Computer Science, vol 3958. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11745853_15
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DOI: https://doi.org/10.1007/11745853_15
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