Next Article in Journal
Emergence of Distinct Spatial Patterns in Cellular Automata with Inertia: A Phase Transition-Like Behavior
Next Article in Special Issue
Competitive Sharing of Spectrum: Reservation Obfuscation and Verification Strategies
Previous Article in Journal
Tunable-Q Wavelet Transform Based Multivariate Sub-Band Fuzzy Entropy with Application to Focal EEG Signal Analysis
Article Menu
Issue 3 (March) cover image

Export Article

Open AccessArticle
Entropy 2017, 19(3), 100;

Normalized Unconditional ϵ-Security of Private-Key Encryption

School of Electronics and Communication Engineering, Yulin Normal University, Yulin 537000, China
School of Information Science and Engineering, Xiamen University, Xiamen 361005, China
School of Mechanical and Electrical Engineering, Guizhou Normal University, Guiyang 550025, China
Author to whom correspondence should be addressed.
Academic Editors: Rafael F. Schaefer, Eduard A. Jorswieck and Stefano Tomasin
Received: 12 January 2017 / Revised: 16 February 2017 / Accepted: 1 March 2017 / Published: 7 March 2017
(This article belongs to the Special Issue Information-Theoretic Security)
View Full-Text   |   Download PDF [702 KB, uploaded 7 March 2017]


In this paper we introduce two normalized versions of non-perfect security for private-key encryption: one version in the framework of Shannon entropy, another version in the framework of Kolmogorov complexity. We prove the lower bound on either key entropy or key size for these models and study the relations between these normalized security notions. View Full-Text
Keywords: unconditional security; entropy; kolmogorov complexity; private-key encryption unconditional security; entropy; kolmogorov complexity; private-key encryption
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Bi, L.; Dai, S.; Hu, B. Normalized Unconditional ϵ-Security of Private-Key Encryption. Entropy 2017, 19, 100.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Entropy EISSN 1099-4300 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top