[Resource Topic] 2010/339: A Certifying Compiler for Zero-Knowledge Proofs of Knowledge Based on $\Sigma$-Protocols

Welcome to the resource topic for 2010/339

Title:
A Certifying Compiler for Zero-Knowledge Proofs of Knowledge Based on \Sigma-Protocols

Authors: Jose Bacelar Almeida, Endre Bangerter, Manuel Barbosa, Stephan Krenn, Ahmad-Reza Sadeghi, Thomas Schneider

Abstract:

Zero-knowledge proofs of knowledge (ZK-PoK) are important building blocks for numerous cryptographic applications. Although ZK-PoK have very useful properties, their real world deployment is typically hindered by their significant complexity compared to other (non-interactive) crypto primitives. Moreover, their design and implementation is time-consuming and error-prone. We contribute to overcoming these challenges as follows: We present a comprehensive specification language and a certifying compiler for ZK-PoK protocols based on \Sigma-protocols and composition techniques known in literature. The compiler allows the fully automatic translation of an abstract description of a proof goal into an executable implementation. Moreover, the compiler overcomes various restrictions of previous approaches, e.g., it supports the important class of exponentiation homomorphisms with hidden-order co-domain, needed for privacy-preserving applications such as idemix. Finally, our compiler is certifying, in the sense that it automatically produces a formal proof of security (soundness) of the compiled protocol (currently covering special homomorphisms) using the Isabelle/HOL theorem prover.

ePrint: https://eprint.iacr.org/2010/339

See all topics related to this paper.

Feel free to post resources that are related to this paper below.

Example resources include: implementations, explanation materials, talks, slides, links to previous discussions on other websites.

For more information, see the rules for Resource Topics .