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Paper 2019/1228

Guess what?! On the impossibility of unconditionally secure public-key encryption

Lorenz Panny

Abstract

We (once again) refute recurring claims about a public-key encryption scheme that allegedly provides unconditional security. This is approached from two angles: We give an information-theoretic proof of impossibility, as well as a concrete attack breaking the proposed scheme in essentially no time.

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Preprint. MINOR revision.
Keywords
public-key cryptographyperfect secrecyinformation theoryimpossibilitycryptanalysis
Contact author(s)
lorenz @ yx7 cc
History
2019-10-21: received
Short URL
https://ia.cr/2019/1228
License
Creative Commons Attribution
CC BY
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