Next Article in Journal
Model Description of Similarity-Based Recommendation Systems
Next Article in Special Issue
The Secret Key Capacity of a Class of Noisy Channels with Correlated Sources
Previous Article in Journal
Rateless Codes-Based Secure Communication Employing Transmit Antenna Selection and Harvest-To-Jam under Joint Effect of Interference and Hardware Impairments
Previous Article in Special Issue
A Hybrid Information Reconciliation Method for Physical Layer Key Generation
Article Menu
Issue 7 (July) cover image

Export Article

Open AccessArticle

A Security Enhanced Encryption Scheme and Evaluation of Its Cryptographic Security

Mathematical Institute, The Serbian Academy of Sciences and Arts, 11000 Belgrade, Serbia
Entropy 2019, 21(7), 701; https://doi.org/10.3390/e21070701
Received: 18 June 2019 / Revised: 7 July 2019 / Accepted: 15 July 2019 / Published: 17 July 2019
(This article belongs to the Special Issue Information-Theoretic Security II)
  |  
PDF [615 KB, uploaded 17 July 2019]
  |  

Abstract

An approach for security enhancement of a class of encryption schemes is pointed out and its security is analyzed. The approach is based on certain results of coding and information theory regarding communication channels with erasures and deletion errors. In the security enhanced encryption scheme, the wiretapper faces a problem of cryptanalysis after a communication channel with bits deletion and a legitimate party faces a problem of decryption after a channel with bit erasures. This paper proposes the encryption-decryption paradigm for the security enhancement of lightweight block ciphers based on dedicated error-correction coding and a simulator of the deletion channel controlled by the secret key. The security enhancement is analyzed in terms of the related probabilities, equivocation, mutual information and channel capacity. The cryptographic evaluation of the enhanced encryption includes employment of certain recent results regarding the upper-bounds on the capacity of channels with deletion errors. It is shown that the probability of correct classification which determines the cryptographic security depends on the deletion channel capacity, i.e., the equivocation after this channel, and number of codewords in employed error-correction coding scheme. Consequently, assuming that the basic encryption scheme has certain security level, it is shown that the security enhancement factor is a function of the deletion rate and dimension of the vectors subject to error-correction encoding, i.e., dimension of the encryption block. View Full-Text
Keywords: encryption; cryptographic security enhancement; erasure error correction; channel with deletion errors; mutual information; channel capacity; the probability of classification error encryption; cryptographic security enhancement; erasure error correction; channel with deletion errors; mutual information; channel capacity; the probability of classification error
Figures

Figure 1

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).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Mihaljević, M.J. A Security Enhanced Encryption Scheme and Evaluation of Its Cryptographic Security. Entropy 2019, 21, 701.

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

1

Comments

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