Efficient Hybrid Encryption System Based on Block Cipher and Chaos Generator

2016 ◽  
Author(s):  
S. Kotel ◽  
F. Sbiaa ◽  
M. Zeghid ◽  
M. Machhout ◽  
A. Baganne ◽  
...  
Keyword(s):  
Block Cipher ◽  
Hybrid Encryption ◽  
Chaos Generator

scholarly journals NVM-Shelf: Secure Hybrid Encryption with Less Flip for Non-Volatile Memory

Electronics ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 1304
Author(s):  
Thomas Haywood Dadzie ◽  
Jiwon Lee ◽  
Jihye Kim ◽  
Hyunok Oh
Keyword(s):  
Embedded Systems ◽  
Block Cipher ◽  
High Energy ◽  
Main Memory ◽  
Security Issue ◽  
Avalanche Effect ◽  
Hybrid Encryption ◽  
Short Period ◽  
Non Volatile Memory ◽  
Volatile Memory

The Non-Volatile Memory (NVM), such as PRAM or STT-MRAM, is often adopted as the main memory in portable embedded systems. The non-volatility triggers a security issue against physical attacks, which is a vulnerability caused by memory extraction and snapshots. However, simply encrypting the NVM degrades the performance of the memory (high energy consumption, short lifetime), since typical encryption causes an avalanche effect while most NVMs suffer from the memory-write operation. In this paper, we propose NVM-shelf: Secure Hybrid Encryption with Less Flip (shelf) for Non-Volatile Memory (NVM), which is hybrid encryption to reduce the flip penalty. The main idea is that a stream cipher, such as block cipher CTR mode, is flip-tolerant when the keystream is reused. By modifying the CTR mode in AES block cipher, we let the keystream updated in a short period and reuse the keystream to achieve flip reduction while maintaining security against physical attacks. Since the CTR mode requires additional storage for the nonce, we classify write-intensive cache blocks and apply our CTR mode to the write-intensive blocks and apply the ECB mode for the rest of the blocks. To extend the cache-based NVM-shelf implementation toward SPM-based systems, we also propose an efficient compiler for SA-SPM: Security-Aware Scratch Pad Memory, which ensures the security of main memories in SPM-based embedded systems. Our compiler is the first approach to support full encryption of memory regions (i.e., stack, heap, code, and static variables) in an SPM-based system. By integrating the NVM-shelf framework to the SA-SPM compiler, we obtain the NVM-shelf implementation for both cache-based and SPM-based systems. The cache-based experiment shows that the NVM-shelf achieves encryption flip penalty less than 3%, and the SPM-based experiment shows that the NVM-shelf reduces the flip penalty by 31.8% compared to the whole encryption.

Forced Chaos Generator with CMOS Variable Active Inductor Circuit

2011 ◽  
Vol 131 (3) ◽  
pp. 499-506 ◽  
Author(s):  
Yusuke Tsubaki ◽  
Munehisa Sekikawa ◽  
Yosihiko Horio
Keyword(s):  
Active Inductor ◽  
Chaos Generator

A novel cryptosystem based on abstract automata and Latin cubes

2015 ◽  
Vol 52 (2) ◽  
pp. 221-232
Author(s):  
Pál Dömösi ◽  
Géza Horváth
Keyword(s):  
Block Cipher ◽  
Finite Automata ◽  
Theoretical Background ◽  
Point Of View ◽  
Theoretical Point ◽  
Transition Matrices ◽  
Encryption And Decryption ◽  
Secret Keys ◽  
Automata Network ◽  
Fully Functioning

In this paper we introduce a novel block cipher based on the composition of abstract finite automata and Latin cubes. For information encryption and decryption the apparatus uses the same secret keys, which consist of key-automata based on composition of abstract finite automata such that the transition matrices of the component automata form Latin cubes. The aim of the paper is to show the essence of our algorithms not only for specialists working in compositions of abstract automata but also for all researchers interested in cryptosystems. Therefore, automata theoretical background of our results is not emphasized. The introduced cryptosystem is important also from a theoretical point of view, because it is the first fully functioning block cipher based on automata network.

A Chaos-Based Approach for Correcting the Security Level of a Block Cipher Algorithm

2016 ◽  
Vol 11 (2) ◽  
pp. 92
Author(s):  
Fatma Zayen Sbiaa ◽  
Medien Zeghid ◽  
Sonia Kotel ◽  
Rached Tourki ◽  
Mohsen Machhout ◽  
...  
Keyword(s):  
Block Cipher ◽  
Security Level

Scan-Based Side-Channel Attack on the Camellia Block Cipher Using Scan Signatures

2015 ◽  
Vol E98.A (12) ◽  
pp. 2547-2555 ◽  
Author(s):  
Huiqian JIANG ◽  
Mika FUJISHIRO ◽  
Hirokazu KODERA ◽  
Masao YANAGISAWA ◽  
Nozomu TOGAWA
Keyword(s):  
Block Cipher ◽  
Side Channel ◽  
Side Channel Attack

A hybrid encryption scheme for RFID system

2014 ◽  
Author(s):  
Yunfeng Wang ◽  
Xing Zheng ◽  
Jing wang ◽  
Donghui Guo
Keyword(s):  
Encryption Scheme ◽  
Hybrid Encryption ◽  
Rfid System

Block Cipher Design after AES and the New Cipher Nahrainfish

2007 ◽  
Vol 1 (4) ◽  
pp. 46-61
Author(s):  
Sufyan T. Faraj Al-janabi ◽  
Keyword(s):  
Block Cipher

DATA SECURITY USING RC6 CIPHER ALGORITHM AS AN IMPLEMENTATION OF PRIVACY PRINCIPLE IN THE UU-ITE PERSPECTIVE AND ISLAMIC LAW

2020 ◽  
Author(s):  
Dedy Agung Prabowo ◽  
Ujang Juhardi ◽  
Bambang Agus Herlambang
Keyword(s):  
Information Technology ◽  
Information System ◽  
Computer Technology ◽  
Data Security ◽  
Block Cipher ◽  
Islamic Law ◽  
Important Thing ◽  
Is Security ◽  
Privacy Principle ◽  
System Data

Recently, Information technology develops rapidly. It is possible for us to get some informationquickly, properly and efficiently. The information technology also has many advantages fo r people. Theneed for information is increasing according to the need of its users. This proves that informationtechnology can make our job easier and it can help us to save our time particularly for the job thatrelated to information and data processin g. With the increasing use of computer technology today, italso brings up some problems. One of them is security and confidentiality problem which is animportant aspect in an information system. Data security is an important thing in maintaining theconf identiality of particular data that only can be known by those who have right. RC6 is a symmetrickey algorithm which encrypts 128 bit plaintext blocks to 128 bit ciphertext blocks. The encryptionprocess involves four operations which is the critical arit hmetic operation of this block cipher. As alegal state, Indonesia has issued a regulation in a form of laws governing information and electronictransaction or commonly referred to UU ITE. Besides, Islam is a religion that comprehensively givesthe guidan ce of life for people. Islam has provided guidance in the various fields ranging from social,politics, economics and various other fields.

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