Paper 2020/911 Original: eprint.iacr.org/2020/911 ↗

Lossy Correlation Intractability and PPAD Hardness from Sub-exponential LWE

Ruta Jawale
Dakshita Khurana
Abstract

We introduce a new cryptographic primitive, a lossy correlation-intractable hash function, and use it to soundly instantiate the Fiat-Shamir transform for the general interactive sumcheck protocol, assuming sub-exponential hardness of the Learning with Errors (LWE) problem. By combining this with the result of Choudhuri et al. (STOC 2019), we show that $\#\mathsf{SAT}$ reduces to end-of-line, which is a $\mathsf{PPAD}$-complete problem, assuming the sub-exponential hardness of LWE.

Metadata
Available format(s)
PDF
Category
Foundations
Publication info
Preprint.
History
2020-07-28: last updated
2020-07-23: published
Short URL
https://ia.cr/2020/911
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2020/911,
      author = {Ruta Jawale and Dakshita Khurana},
      title = {Lossy Correlation Intractability and PPAD Hardness from Sub-exponential LWE},
      howpublished = {Cryptology {ePrint} Archive, Paper 2020/911},
      year = {2020},
      url = {https://eprint.iacr.org/2020/911}
}
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