Cryptanalysis of an authenticated image encryption scheme. Introducing the tweak permit to avoid necessity of standard cipher. The communication of private information is very dangerous, since unauthorized entities can intercept it. In this article we present a new symmetrickey block cipher based on a specific class of reversible. November 1985 extended abstract this abstract discusses a stream cipher based on a simple onedimensional cellular automaton. In this paper cellular automata ca are applied to construct a symmetrickey encryption algorithm. Cellular automata based on block cipher and road traffic. We propose an evolutionary computation approach to design a fast and secure block cipher using nonuniform secondorder cellular automata. Cryptography reversible cellular automata block ciphers marcin seredynski. A rudimentary idea of this work, without taking into account the proper key scheduling and security analysis, has been presented in 26. The block cipher defines a pseudorandom permutation with a supplementary tweak. User authentication based on quantumdot cellular automata. Pdf we propose a new encryption algorithm relying on reversible cellular automata ca. A cryptosystem based on the composition of reversible.
A reversible cellular automaton is a cellular automaton in which every configuration has a unique predecessor. The quality of encryption depends en the type of ruler used, and randomness of the numbers used in the process of. A genetic strategy to design cellular automata based block. This proposed work generates block cipher by using 2d cellular automata based secret key rule. We extend the block cipher algorithm, based on the backward iteration and forward iteration of socalled toggle ca rules to twodimensions. Several techniques can be used to explicitly construct reversible cellular automata with known inverses.
Cellular automata computations and secret key cryptography was proposed by f. Cellular automata are highly parallel and discrete dynamical systems, whose behaviour is completely specified in terms of a local relation. Programmable cellular automata based efficient parallel aes. Block cipher based on reverse cellular automata reverse cellular automata ca is reversible if its map is invertible rule 15 retrograde and 180 degree rotation rule 85 let 1 0.
Implementation of aes using reversible cellularautomata based. Abstract this paper presents the design of a private key algorithm based on 2dimensional cellular automata. A novel encryption system using layered cellular automata. All that changed in the early 1980s when physicist stephen wolfram in a seminal paper, statistical mechanics of cellular automata, initiated the. Pdf block encryption using reversible cellular automata. Pdf a parallel encryption algorithm for block ciphers. Cellular automata can simulate a variety of realworld systems, including biological and chemical. However, a number of attacks are mounted on these type of ciphers. Although such automata do not strictly satisfy the definition given. In 2006, an involutional block cipher using cellular automata was proposed.
A novel way to provide fast authenticated and randomized encryption is proposed using reversible cellular automata for the first time. A parallel blockbased encryption schema for digital images. Index terms ce l u ar a tom ta ca, reversible cellular automata rca, layered cellular automata, symmetric key, encryption. A class of ca with ruler specifically constructed to be reversible is used. Cellular automata based on block cipher and road traffic model. Cryptography reversible cellular automata block ciphers. Applications of two dimensional cellular automata rules for block cipherin cryptography special issue of ijcct vol.
Stream ciphers have been extensively studied and many designs were proposed throughout the years. Block cipher based on reversible cellular automata core. Citeseerx block cipher based on reversible cellular automata. In this section, we provide definitions relating ca and cryptographic properties. Ca rules as boolean functions a onedimensional cellular automaton ca consists of two things. Pdf block cipher based on reversible cellular automata. A class of ca with rules specifically constructed to be reversible is used. First, the plaintext is divided into blocks, the principal secret key is given randomly by a rst irreversible cellular automaton, and then a number of sub keys are generated and used for each iteration to cipher each block with a reversible cellular automata. A parallel blockbased encryption schema for digital images using reversible cellular automata faraoun kamel mohamed computer sciences department, djilalli liabbes university, sidi bel abbes, algeria article info article history. A parallel blockbased encryption schema for digital. A block based cryptosystem is presented and shown to provide security against both active and passive attackers by the way of a strong authentication mechanism. A fast cryptosystem using reversible cellular automata said bouchkaren department of mathematics and computer science. Complexity of the behavior achieved by ca and its parallel nature makes them interesting from point of view of cryptography. On the design of stream ciphers with cellular automata having radius 2 anita john rohit lakra jimmy jose received.
Then we focus our attention to one of the few public key systems based on cellular automata in existence, proposed by kari. The work presents a new encryption algorithm based on one dimensional, uniform and reversible cellular automata ca. A new block cipher based on one dimensional, uniform and reversible ca is proposed. Cryptanalysis of an involutional block cipher using cellular. Initial initial implementation of the stream cipher is done using matlab tool to analyze its functionality and security. Implementation of aes using reversible cellularautomata. Public key algorithms are based on mathematical functions. Many cellular automaton block ciphers have been proposed using reversible cellular automatons, but with a specific operation mode designed to handle block encryption enchainment since standardized operation modes have not been yet used with cas based cryptosystems. The behavior complexity of ca and their parallel nature makes. Their combined citations are counted only for the first article. Keywords cellular automata sbox cryptographic properties heuristics 1. Design of fast onepass authenticated and randomized. This process is experimental and the keywords may be updated as the learning algorithm improves. In this paper cellular automata ca are applied to construct a sym metrickey encryption algorithm.
We analyze karis proposal by giving a more detailed description. Pdf the work presents a new encryption algorithm based on one dimensional, uniform and reversible cellular automata ca. A nonlinear cellular automata based stream cipher sandip karmakaryand dipanwita roy chowdhury indian institute of technology, kharagpur, wb, india lfsr and nfsr are the basic building blocks in almost all the state of the art stream ciphers like trivium and grain128. We also give a brief specification of the grain128 stream cipher. Applications of two dimensional cellular automata rules for. Cryptography, reversible cellular automata, block ciphers. In ca the problem space into number of cell and each cell can be one or several final state. Two common ones are the second order cellular automaton and the block cellular automaton, both of which involve modifying the definition of a cellular automaton in some way. Block cipher based on reversible cellular automata springerlink. Citeseerx document details isaac councill, lee giles, pradeep teregowda. In the authors used reversible cellular automata to implement block encryption algorithm. We use these results to develop a working key generation algorithm for a publickey cryptosystem based on reversible cellular automata originally conceived by kari. Reversible cellular automata a reversible cellular automata rca is a cellular automata for which each state has at most one predecessor given any current state it is possible to trace it back to its initial state an rca can be implemented that does not require any cooling or energy in theory the rules could be implemented using fredkin gates. A parallel encryption algorithm for block ciphers based on.
Pattnaik, application of cellular automata in symmetric key cryptography, 2014 international conference on communication and signal processing. A new block cipher based on one dimensional, uniform and. The cellular automaton consists of a circular register with n cells, each having a value ai equal to o or i. Abstract we introduce a new encryption algorithm based on reversible cellular automata ca.
Public cipher based on cellular automata was first proposed by guan, stream cellular automata stream cipher was proposed by wolfram. Cryptography with cellular automata stephen wolfram the institute for advanced study, princeton nj 08540. Cryptographic properties of bipermutive cellular automata rules alberto leporati. Cellular automata based sboxes cryptology eprint archive. Block cipher based on reversible cellular automata researchgate.
So far proposed cryptosystems based on ca use iterations of binary, 1d ca. Cells are affected by neighbors with the application of simple rule. While generating and studying chaotic patterns with help of linear additive 2d cellular automata rules, we observed recovery of data block under study in the forward periodic iterations. Encryption and decryption algorithm using two dimensional. Fast encryption of rgb color digital images using a. Special types of cellular automata are reversible, where only a single configuration leads directly to a subsequent one, and totalistic, in which the future value of individual cells only depends on the total value of a group of neighboring cells. A new iterative secret key cryptosystem based on reversible. Reverse iteration encryption scheme using layered cellular. This paper focuses on security analysis of the scheme 10 and reports the. On the design of stream ciphers with cellular automata. Encryption and decryption algorithm using two dimensional cellular automata rules in cryptography sambhu prasad panda, madhusmita sahu, umesh prasad rout, surendra kumar nanda.
Block cipher based on reversible cellular automata article pdf available in new generation computing 233. Block cipher based on reversible cellular automata citeseerx. Received 2 november 20 received in revised form 6 april 2014 accepted 6 april 2014 available online 5 may 2014. A lightweight feistel block cipher using cellular automata. In this paper, we present a novel cryptosystem based on reversible secondorder cellular automata. The proposed block cipher is simpler to implement in both hardware and software, along with being resistant against timing. A tweakable cipher is proposed using secondorder reversible cellular automata. Blockcipher scheme based on back iteration of the 2d. A parallel encryption algorithm for block ciphers based on reversible programmable cellular automata full text. Cellular automaton cellular automaton encryption algorithm block cipher stream cipher these keywords were added by machine and not by the authors. Cryptography, wmsn, cellular automata, reversible cellular automata, kamar, feistel block cipher, key scheduling algorithm, fpga 1. Still the study of cellular automata lacked much depth, analysis, and applicability and could not really be called a scienti. Existing ca based approaches are almost all sequential and as a result, the. Reversible cellular automata based encryption m seredynski, k pienkosz, p bouvry ifip international conference on network and parallel computing, 411418, 2004.
A cellular automata based partition ciphering system. In this respect the use of cellular automata ca with their parallel, simple, regular and modular structure is very promising. We build a flexible block ciphering model that permit the construction of a huge space of possible instances defined each one by a. Concept of cellular automata cellular automata ca1 is a collection of cells and each cell change in states by following a. This paper analyzes the insecurity of the cipher due to its conjugate property. Dec 01, 2014 a specific construction of block ciphers using secondorder reversible cellular automata is developed, permitting to provide a flexible and dynamic ciphering structure that can be used to define a large space of possible candidates, and to explore it using the genetic algorithms operators in order to find an optimal instance of the proposed. Theory and applications of cellular automata in cryptography s. We use cellular automata and use a timearea tradeo for these designs. This paper deals with the cellular automata ca in cryptography for a class of block ciphers through a new block encryption algorithm based on reversible programmable cellular automata theory. Each cell is a finite state machine c 0,1, f where, f is a mapping f.
This cipher is found to be suitable to address the criteria involved in avalanche property. A novel image encryption algorithm using chaos and. Introduction security is a critical factor in every communication system in this world. Cryptographic properties of bipermutive cellular automata. Block cipher based on reversible cellular automata was proposed by m. A new block cipher system using cellular automata and ant. Block cipher based on reversible cellular automata was.
Cryptography with cellular automata wolfram discussed a stream cipher based on 1d circular ca with n cells the security of a cryptographic system is based on the seed value of a time sequence of cell values. Block encryption using reversible cellular automata. The cryptosystem is featured by its large key space and high speed due to cellular automata s. The proposed cipher is used to construct a parallelizable images encryption system. Block cipher based on reversible cellular automata. The proposed algorithm belongs to the class of symmetric key systems. Novel and efficient cellular automata based symmetric key. The most widely known example is the gameoflife by john conway. However, excessive communication requirements act as a trade off problem for this method.
A fast cryptosystem using reversible cellular automata. This paper deals with the cellular automata in cryptography for a class of block ciphers through a new block encryption algorithm based on programmable cellular automata. Later, many scholars proposed encryption algorithms based on cellular automata. A new reverse iterative block encryption scheme using layered cellular automata with tshaped neighborhood is proposed in this paper. A selfinvertible ca based structure allows for an efficient hardware implementation.
A cellular automata ca is a computing model of complex system using simple rule. Cryptography, wmsn, cellular automata, reversible cellular automata, kamar, feistel block cipher, key scheduling algorithm, fpga. Aes, fpga, encryption, decryption, rijndael, block cipher, reversible cellular automata sbox 1. Their work ensures to generate 2 256 encryption and decryption algorithm using two dimensional cellular automata rules in cryptography 19. That is, it is a regular grid of cells, each containing a state drawn from a finite set of states, with a rule for updating all cells simultaneously based on the states of their neighbors, such that the previous state of any cell before an update can be determined uniquely from the. We show that, under certain technical assumptions, a marker cellular automaton has a unique inverse with a given neighbourhood. A new block cipher system using cellular automata and ant colony optimization bccaaco. The proposed algorithm belongs to the class of symmetric key systems based on block cipher. The nonlinear block made use of ca based nonlinear generators with ca based mixing among them. In this paper and another papers 4, 5 application of cellular automata results in high security, low computational complexity and large key space. Pal chaudhuri abstractthis paper deals with the theory and application of cellular automata cai for a class of block ciphers and stream ciphers. Specifically, based on the tshaped neighborhood structure, we generate some two order reversible rules and then set the plaintext as the final configuration of a 4layer ca. Abstract the paper presents a new encryption algorithm based on one dimensional, uniform and reversible cellular automata ca. Encryption based on reversible secondorder cellular automata.
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