[Resource Topic] 2019/1392: Decryption failure is more likely after success

Welcome to the resource topic for 2019/1392

Title:
Decryption failure is more likely after success

Authors: Nina Bindel, John M. Schanck

Abstract:

The user of an imperfectly correct lattice-based public-key encryption scheme leaks information about their secret key with each decryption query that they answer—even if they answer all queries successfully. Through a refinement of the D’Anvers–Guo–Johansson–Nilsson–Vercauteren–Verbauwhede failure boosting attack, we show that an adversary can use this information to improve his odds of finding a decryption failure. We also propose a new definition of \delta-correctness, and we re-assess the correctness of several submissions to NIST’s post-quantum standardization effort.

ePrint: https://eprint.iacr.org/2019/1392

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 .