AN APPROACH TO RIJNDAEL ALGORITHM (original) (raw)
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Security is the major aspect in any type of communication systems. The generation of secret keys randomly provides good security as well as better complexity in cryptographic based algorithms. In literature there exist symmetric key algorithms which use the same key for encryption as well as decryption. Among all the algorithms, Advanced Encryption Standard (AES) is used in many fields of security in communications. In this paper, we have implemented 128 bit AES algorithm in hardware descriptive languages. Our proposed implementation has demonstrated efficient results in delay and area. Furthermore, we provide a comparison with the corresponding coding implementations.
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International Journal of …, 2010
The existing system consisted of files with literally no file security. The main issue of Reading or tapping data is secrecy and confidentiality. Confidentiality has always played an important role in diplomatic and military matters. Often Information must be stored or transferred from one place to another without being exposed to an opponent or enemy. The main aim of presenting this paper is to encrypt a java file using Rijndael Algorithm. The first aspect that has to be considered in our paper is file security and the need for file security. Key management is also related to Confidentiality. This deals with generating, distributing and storing keys .File security must be implemented so as to eliminate the problems like unauthorized access, execution of commands illicitly, destructive behavior and confidentiality reaches.
The present paper includes a research study about the weak points and the major weakness aspects of the Rijndael cipher from the point of view design. Although several published papers for most researchers around the world included either the developing models or improving techniques by depending on Rijndael cipher. In this study, opposite matter about some scientific criticism for certain essential points in the AES construction will be discussed. When the AES was selected 16 years ago, the digital technologies were quite different from now and the magnitude of the challenges was less, so with the recent advanced technology and the emergence of new applications like Big data's applications in addition to the applications have run with 64-bit and a lot of other applications, it has become a necessity for designing a new contemporary algorithm for the current demands. Especially young Rijndael that has faded and its sun had set as it has been believed by many researchers. Since the experts and designers of information security in previous time determined its retired date for ten years. In this study, a list of drawbacks and vulnerabilities for the Rijndael internal structure in addition to new recommendations for the future work will be diagnosed. No one denies that the selection of Rijndael was a good choice for civil applications on software and hardware implementations and on many of various platforms, but the excessive speed for the IT progress leads to take in to account
An Enhanced Advanced Encryption Standard Algorithm
2015
In today’s world most of the communication is done using electronic media. Data Security plays a vital role in such communication. Hence, there is a need to protect data from malicious attacks. Cryptography is the study of mathematical techniques related to aspects of information security such as confidentiality, data integrity, entity authentication and data origin authentication. In data and telecommunications, cryptography is necessary when communicating over any unreliable medium, which includes any network particularly the internet. Advanced Encryption Standard (AES), also known as Rijndael, is an encryption standard used for securing information which is defined by The National Institute of Standard and technology (NIST) of United States[1][5][9]. AES is a block cipher algorithm that has analyzed extensively and is now used widely[13]. AES involves the sequence of four primitive functions: Sub Bytes, Shift Rows, Mix Column and Add Round Key. This paper presents some modificati...
AES - The State of the Art of Rijndael's Security
This paper doesn't contain a description of Rijndael. For a full specification, we refer the reader to [DR02]. In this paper we give an overview about the attacks which have been proposed for the Rijndael algorithm and ideas which could lead to new attacks that have been made public recently. A summary of these attacks, their complexity and how many rounds of Rijndael for a given key size they can break, is presented in table 1.In this table the published attacks which can break reduced versions of Rijndael, this means version with less than the specified rounds, are listed. This list includes the name of the attack, its publications date in the second column, the authors in the third column, and how many rounds of which version of Rijndael in the remaining columns. For example, the attack based on impossible di0erentials was published in 2000 by [BK00] and can only break 6 rounds out 10 of Rijndael specified for 128 bits (i. e. AES-128).
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2018
The importance of cryptography applied to security in electronic data transactions has gained essential relevance during the last few years. Everyday many users generate and interchange a large amount of information in various fields through Internet, Telephone conversations, and e-commerce transactions. These and the other examples of application deserve a security point of view, not only a transport of such information but also in storage. This can be achieved by various techniques such as password, cryptography and biometrics. In this sense, cryptography techniques are especially useful. In cryptography, the AES also known as Rijndael, is a block cipher adopted as an encryption standard by the US government specifies an encryption algorithm capable of protecting sensitive data. The AES algorithm is symmetric block cipher that can encrypt and decrypt information. The AES algorithm uses cryptographic key of 128, 192 and 256 bits to encrypt and decrypt data in blocks of 128 bits. Ho...
Design and Implementation of Rijindael’s Encryption and Decryption Algorithm using NIOSII Processor
International Journal on Recent and Innovation Trends in Computing and Communication, 2015
One of the foremost vital problems in communication customary is that the secure transport protocols. This paper can offer a doable resolution for Rijindael's encryption and decoding algorithmic program using NIOS II processor, provided by ALTERA to be enforced in FPGA. We are going to see the performance of Rijindael's AES using NIOS II/e (economic), NIOS II/s (standard) and NIOS II/f (fast). The suggested system is capable of encrypting and decrypting 128,198 and 256 bits of data. The FPGA has the potential of data processing and hardware modification. The NIOS II is a versatile embedded processor family that represents high performance, lower overall cost, power consumption, complexity combining several functions into one chip. The look of the Rijindael algorithmic program supported "NIOS II + FPGA" are able to do a better processing speed whereas it occupies comparatively low resources. The inputs and the control of an AES algorithmic program is written in C language and is interfaced with the system using general purpose input and output (GPIO) and also the management part is enforced in software in NIOS II integrated development environment (IDE). The implementation is completed on Cyclone II FPGA kit. The results are analysed on the personnel computer (PC) in IDE console window.
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Rijndael's Advanced Encryption Standard (AES) is the block cipher based symmetric-key cryptography to protect the sensitive information. The key sizes of AES are 128, 192, 256 bits. AES is based on substitution-permutation strategy. It is accepted by NIST in 2001 after the five year of security evaluation. It is highly secured and efficient than Data Encryption Standard (DES) and other symmetric-key cryptographic algorithms. This paper depicts all the valuable work done on the Advanced Encryption Standard since it is accepted by National Institute of Standards and Technology (NIST).
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Today' s cryptographic algorithms are designed in a way that they combine m athem atical theory and practice o f computer science in order to improve resistance to cryptanalysis. Cryptographic algorithms are designed around the binary data form at keeping in mind the presumption o f hardening possibility o f cracking the algorithm. One o f the algorithms whose resistance to cryptanalysis during the past 16 years is extensively tested algorithm AES. The Advanced Encryption Standard (AES) is the first cryptographic standard aroused as the result o f public competition established by U.S. National Institute o f Standards and Technology (NIST). AES has emerged as restriction on winner o f this com petition, called Rijndael algorithm on the block size o f 128 bits. From the moment o f its acceptance o f the standard in 2001, testing and research o f its resistance on cryptanalysis and research focused on improving its performance are made. This paper presents a detailed overview o f the algorithm AES, together with all its transformations and with ideas to speed up its work.