Mahaviracharya Encryption Algorithm (MEA) with Modified Counter Mode and Comparing with AES Algorithm

2019 ◽  
pp. 139-146
Author(s):  
Nagaraju Bollepalli ◽  
Ramkumar Penu
Keyword(s):  
Encryption Algorithm ◽  
Aes Algorithm

scholarly journals IMAGE ENCRYPTION FOR SECURE INTERNET TRANSFER

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
V Goutham Bharadwaja ◽  
Yashas M S ◽  
Yathendra Yadav T V ◽  
Gelvesh G
Keyword(s):  
Image Encryption ◽  
Input Image ◽  
Encryption Algorithm ◽  
Secret Key ◽  
Image Transfer ◽  
Important Data ◽  
Aes Algorithm ◽  
Encryption And Decryption ◽  
Chaos Sequence ◽  
Image Encryption Algorithm

Security is a crucial side to preserve the confidentiality of information such as pictures and text. The probability of an assailant attempting to access the image in the course of transferring process is high as assailant may get hold of important data. Therefore, encryption methods are used for securing the data. A novel image encryption algorithm that is a combination of the AES algorithm and the chaos sequence is proposed in this paper. The project will use AES for encryption and decryption of the image transfer because AES is capable of solving problem that cannot be resolved by different algorithms. The original image is transformed into cipher-image using a share secret key and this process is called encryption while the reverse of encryption process is known as decryption. This method’s sensitivity to the initial values and input image, even the tiniest changes within these values will result in significant changes in the encrypted image. We show that this approach can shield the image against different attacks exploitation using histogram analysis.

scholarly journals Generating Cipher Text using BLOWFISH Algorithm for Secured Data Communications

2019 ◽  
Vol 9 (2) ◽  
pp. 117-121
Keyword(s):  
High Speed ◽  
High Performance ◽  
Encryption Algorithm ◽  
Advanced Encryption Standard ◽  
Aes Algorithm ◽  
Cipher Text ◽  
Original Message ◽  
Public Domain Software ◽  
Secured Data ◽  
Vhdl Code

Cryptography plays a major role in the network security. In order to secure the data one must do encryption of the original message. In this paper, the design and analysis of high speed and high performance BLOWFISH algorithm is implemented in VHDL coding and compared with AES (Advanced Encryption Standard) algorithm. The BLOWFISH algorithm involves the process of giving the data and key as input to the encryption block. BLOWFISH encryption algorithm is designed and programmed in VHDL coding. Then it is implemented in Xilinx 10.1. This research is carried in the following steps: designing of encryption algorithm, writing VHDL code, simulating the code on “ModelSim altera 6.5e”, synthesizing and implementing the code using Xilinx’s ISE 10.1.This research aims in developing flexible and technology independent architectures in the areas of VPN software, file compression, public domain software such as smart cards, etc. Also presents the comparison of BLOWFISH and AES algorithms. Experimental results show that BLOWFISH algorithm runs faster than AES algorithm while both of them consume almost the same Power.

scholarly journals Secure Login System using MD5 and AES Attribute Based Encryption Algorithm

2020 ◽  
Vol 9 (8) ◽  
pp. 810-814
Keyword(s):  
Exchange Process ◽  
Encryption Algorithm ◽  
Symmetric Encryption ◽  
Secret Key ◽  
Aes Algorithm ◽  
Attribute Based Encryption ◽  
Financial Framework ◽  
Third Person ◽  
Message Digest ◽  
Symmetric Key

The cryptographic hash work and symmetric encryption make it hard to break Passwords. Secure secret word stockpiling is a crucial perspective in framework dependent on secret word verification, which is as yet the most broadly utilized confirmation system, notwithstanding its some security imperfections. So basically, this work is based on providing security to the systems. Right now, propose a secret word verification structure that is intended for secure secret word stockpiling and could be effectively coordinated into existing confirmation frameworks. In our system, first, the got plain secret key from a customer is worked out a cryptographic hash work. At that point; the hashed secret word is changed over into a negative secret word. At last, the negative secret word is encoded into an Encrypted Negative Password (ENP) utilizing a symmetric-key calculation, and multi-emphasis encryption could be utilized to additionally improve security. The cryptographic hash work and symmetric encryption make it hard to split passwords from ENPs.We are going to use message digest i.e MD5 and AES algorithm for this purpose. Besides, there are loads of comparing ENPs for a given plain secret key, which makes precomputation assaults infeasible. The calculation multifaceted nature investigations and examinations show that the ENP could oppose query table assault and give more grounded secret word insurance under lexicon assault. It merits referencing that the ENP doesn't present additional components other than this, the ENP could in any case oppose precomputation assaults. We are giving shading coding framework just as key logger idea secret key reason. This shading code framework is hard to break to third person. In key lumberjack the keypad of framework is mix, each time it will change the grouping of catches of 0-9 numbers,subsequent to logging the client one otp will send to client email just as the key squence of the keypad will send on client email. By utilizing this otp and key grouping client will login to framework and it will do the further exchange process. This framework will valuable in future for any financial framework or any verification reason will be utilized.

scholarly journals Hybrid Approach of Modified AES

Cryptography ◽  
2020 ◽  
pp. 129-141
Author(s):  
Filali Mohamed Amine ◽  
Gafour Abdelkader
Keyword(s):  
Time Complexity ◽  
Input Data ◽  
Hybrid Approach ◽  
Encryption Algorithm ◽  
Advanced Encryption Standard ◽  
Aes Algorithm ◽  
Symmetric Key ◽  
Encryption Algorithms ◽  
Aes Encryption Algorithm ◽  
Modified Aes

Advanced Encryption Standard is one of the most popular symmetric key encryption algorithms to many works, which have employed to implement modified AES. In this paper, the modification that has been proposed on AES algorithm that has been developed to decrease its time complexity on bulky data and increased security will be included using the image as input data. The modification proposed itself including alteration in the mix column and shift rows transformation of AES encryption algorithm, embedding confusion-diffusion. This work has been implemented on the most recent Xilinx Spartan FPGA.

Hybrid Approach of Modified AES

2017 ◽  
Vol 7 (4) ◽  
pp. 83-93
Author(s):  
Filali Mohamed Amine ◽  
Gafour Abdelkader
Keyword(s):  
Time Complexity ◽  
Input Data ◽  
Hybrid Approach ◽  
Encryption Algorithm ◽  
Advanced Encryption Standard ◽  
Aes Algorithm ◽  
Symmetric Key ◽  
Encryption Algorithms ◽  
Aes Encryption Algorithm ◽  
Modified Aes

Advanced Encryption Standard is one of the most popular symmetric key encryption algorithms to many works, which have employed to implement modified AES. In this paper, the modification that has been proposed on AES algorithm that has been developed to decrease its time complexity on bulky data and increased security will be included using the image as input data. The modification proposed itself including alteration in the mix column and shift rows transformation of AES encryption algorithm, embedding confusion-diffusion. This work has been implemented on the most recent Xilinx Spartan FPGA.

The IC Card Data Encryption Research Based on the AES Algorithm

2012 ◽  
Vol 220-223 ◽  
pp. 2698-2701
Author(s):  
Yang Yu ◽  
Shi Min Wang
Keyword(s):  
Data Encryption ◽  
Encryption Algorithm ◽  
Ic Card ◽  
Aes Algorithm ◽  
New Generation ◽  
Aes Encryption Algorithm

AES is a new generation encryption standard which is designed by the American National Institute of Standards and Technology (NIST) to replace DES. This paper described the concrete steps of the AES encryption algorithm which take the 128-bit keys as an example, including SubBytes, ShiftRows, MixColumns and AddRoundKey, and a detailed study of the IC card data encryption with the application of the AES algorithm.

scholarly journals Encryption Algorithm using Shuffled 2-Dimension Key

2019 ◽  
Vol 9 (2) ◽  
pp. 1105-1109
Keyword(s):  
Cyber Security ◽  
Security Protocols ◽  
Encryption Algorithm ◽  
Advanced Encryption Standard ◽  
Security Threats ◽  
Aes Algorithm ◽  
Cipher Text ◽  
Cryptographic Algorithms

Cryptographic algorithms are the fundamental element of security protocols and applications. They need to evolve to face the advance cyber security threats. This paper presents an encryption algorithm in which plaintext is encrypted using Shuffled 2-Dimension Key. Each time when a block is encrypted, the key is shuffled. Next time when a block is encrypted the key is different. Cipher text is more secured with shuffling 2-Dimension key as compared with same without shuffling 2-Dimension key. The results of 2-dimension array (shuffled and without shuffled) are compared with Advanced Encryption Standard (AES) algorithm. Same character is encrypted in different way as the key get changed due to shuffling.

scholarly journals Implementation of a bit permutation-based advanced encryption standard for securing text and image files

2020 ◽  
Vol 19 (3) ◽  
pp. 1596
Author(s):  
Heidilyn V Gamido
Keyword(s):  
Encryption Algorithm ◽  
Advanced Encryption Standard ◽  
Differential Attack ◽  
Avalanche Effect ◽  
Aes Algorithm ◽  
Computational Requirement ◽  
Change Intensity ◽  
Modified Algorithm ◽  
Modified Aes ◽  
The Ideal

<span>The paper proposes a modification of the Advanced Encryption Standard (AES) to address its high computational requirement steaming from the complex mathematical operations in the MixColumns Transformation which makes the encryption process slow. Bit Permutation was used instead of the MixColumns Transformation since the use of bit permutation in an encryption algorithm achieves efficiency by providing minimum encryption time and memory requirement. Results of the study showed that the modified AES algorithm exhibited faster encryption by 18.47% and faster decryption by 18.77% for text files. The modified AES algorithm also resulted to 16.53% higher avalanche effect compared with the standard AES thus improving the security performance. Application of the modified AES in encrypting images in Cipher Block Chaining mode showed that the modified algorithm also exhibited 16.88% faster encryption and 11.96% decryption compared with the standard AES. Likewise, modifying the algorithm achieved the ideal result in the histogram analysis, information entropy, the correlation coefficient of adjacent pixels to resist statistical attack.  The ideal value in number of pixels change rate and unified average change intensity were also achieved making the modified algorithm resistant to differential attack. These results show that modifying AES by using bit permutation to replace MixColumns Transformation was able to address the high computational requirement of the algorithm resulting in a faster and more secure encryption algorithm for text files and images</span><span>.</span>

Research on Improved AES Encryption Algorithm

2014 ◽  
Vol 989-994 ◽  
pp. 1861-1864
Author(s):  
Zi Heng Yang ◽  
Na Li ◽  
Li Yuan Liu ◽  
Ren Ji Qi ◽  
Ling Ling Yu
Keyword(s):  
Information Security ◽  
Random Number ◽  
Encryption Algorithm ◽  
Advanced Encryption Standard ◽  
Security Risk ◽  
Aes Algorithm ◽  
Logistic Mapping ◽  
Pseudo Random Number ◽  
Aes Encryption Algorithm ◽  
At Home

AES (Advanced Encryption Standard) in May 26, 2002 became effective standard. AES algorithm research has become a hot topic at home and abroad, and the algorithm has been widely applied in the field of information security. Since the algorithm of AES key expansion part is open, so the key is between the wheel can be derived from each other, the AES algorithm designed for this security risk by generating pseudo-random number. Logistic mapping a certain length, after quantization is used as a key to improve the security of the AES algorithm.

Sign in / Sign up

Export Citation Format

Share Document