Paper 2012/226
ZKPDL: A Language-Based System for Efficient Zero-Knowledge Proofs and Electronic Cash
Sarah Meiklejohn, C. Chris Erway, Alptekin Küpçü, Theodora Hinkle, and Anna Lysyanskaya
Abstract
In recent years, many advances have been made in cryptography, as well as in the performance of communication networks and processors. As a result, many advanced cryptographic protocols are now efficient enough to be considered practical, yet research in the area remains largely theoretical and little work has been done to use these protocols in practice, despite a wealth of potential applications. This paper introduces a simple description language, ZKPDL, and an interpreter for this language. ZKPDL implements non-interactive zero-knowledge proofs of knowledge, a primitive which has received much attention in recent years. Using our language, a single program may specify the computation required by both the prover and verifier of a zero-knowledge protocol, while our interpreter performs a number of optimizations to lower both computational and space overhead. Our motivating application for ZKPDL has been the efficient implementation of electronic cash. As such, we have used our language to develop a cryptographic library, Cashlib, that provides an interface for using ecash and fair exchange protocols without requiring expert knowledge from the programmer.
Note: http://github.com/brownie/cashlib
Metadata
- Available format(s)
-
PDF
- Category
- Implementation
- Publication info
- Published elsewhere. full version of paper published at USENIX Security 2010
- Keywords
- applicationselectronic commerce and paymentfair exchangezero knowledge
- Contact author(s)
- akupcu @ ku edu tr
- History
- 2012-04-30: received
- Short URL
- https://ia.cr/2012/226
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2012/226,
author = {Sarah Meiklejohn and C. Chris Erway and Alptekin Küpçü and Theodora Hinkle and Anna Lysyanskaya},
title = {{ZKPDL}: A Language-Based System for Efficient Zero-Knowledge Proofs and Electronic Cash},
howpublished = {Cryptology {ePrint} Archive, Paper 2012/226},
year = {2012},
url = {https://eprint.iacr.org/2012/226}
}
