Welcome to the resource topic for 2015/216
Title:
Quasi-Adaptive NIZK for Linear Subspaces Revisited
Authors: Eike Kiltz, Hoeteck Wee
Abstract:Non-interactive zero-knowledge (NIZK) proofs for algebraic relations in a group, such as the Groth-Sahai proofs, are an extremely powerful tool in pairing-based cryptography. A series of recent works focused on obtaining very efficient NIZK proofs for linear spaces in a weaker quasi-adaptive model. We revisit recent quasi-adaptive NIZK constructions, providing clean, simple, and improved constructions via a conceptually different approach inspired by recent developments in identity-based encryption. We then extend our techniques also to linearly homomorphic structure-preserving signatures, an object both of independent interest and with many applications.
ePrint: https://eprint.iacr.org/2015/216
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