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SIAM J. Comput. 39, pp. 1153-1218 (66 pages)
Statistically Hiding Commitments and Statistical Zero-Knowledge Arguments from Any One-Way Function
We give a construction of statistically hiding commitment schemes (those in which the hiding property holds against even computationally unbounded adversaries) under the minimal complexity assumption that one-way functions exist. Consequently, one-way functions suffice to give statistical zero-knowledge arguments for any NP statement (whereby even a computationally unbounded adversarial verifier learns nothing other than the fact that the assertion being proven is true, and no polynomial-time adversarial prover can convince the verifier of a false statement). These results resolve an open question posed by Naor et al. [J. Cryptology, 11 (1998), pp. 87–108].
© 2009 Society for Industrial and Applied Mathematics
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Received November 05, 2007
Accepted February 24, 2009
Published online September 02, 2009
Accepted February 24, 2009
Published online September 02, 2009
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