Paper 2002/186

Zero-Knowledge twenty years after its invention

Oded Goldreich

Abstract

Zero-knowledge proofs are proofs that are both convincing and yet yield nothing beyond the validity of the assertion being proven. Since their introduction about twenty years ago, zero-knowledge proofs have attracted a lot of attention and have, in turn, contributed to the development of other areas of cryptography and complexity theory. We survey the main definitions and results regarding zero-knowledge proofs. Specifically, we present the basic definitional approach and its variants, results regarding the power of zero-knowledge proofs as well as recent results regarding questions such as the composeability of zero-knowledge proofs and the use of the adversary's program within the proof of security (i.e., non-black-box simulation).

Metadata
Available format(s)
PS
Category
Foundations
Publication info
Published elsewhere. Unknown where it was published
Keywords
Probabilistic Proof SystemsZero-Knowledge
Contact author(s)
oded @ wisdom weizmann ac il
History
2002-12-05: received
Short URL
https://ia.cr/2002/186
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2002/186,
      author = {Oded Goldreich},
      title = {Zero-Knowledge twenty years after its invention},
      howpublished = {Cryptology {ePrint} Archive, Paper 2002/186},
      year = {2002},
      url = {https://eprint.iacr.org/2002/186}
}
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