Data Encryption Standard (DES) and Advanced Encryption Standard (AES)

2012 ◽  
Keyword(s):  
Data Encryption ◽  
Advanced Encryption Standard ◽  
Data Encryption Standard

scholarly journals Comparison of AES and DES Algorithms Implemented on Virtex-6 FPGA and Microblaze Soft Core Processor

2018 ◽  
Vol 8 (5) ◽  
pp. 3544
Author(s):  
G. Renuka ◽  
V. Usha Shree ◽  
P. Chandra Sekhar Reddy
Keyword(s):  
Dominant Role ◽  
Data Encryption ◽  
Soft Core ◽  
Advanced Encryption Standard ◽  
Description Language ◽  
Important Data ◽  
Data Encryption Standard ◽  
Software Implementations ◽  
Hardware Description ◽  
Encryption Algorithms

Encryption algorithms play a dominant role in preventing unauthorized access to important data. This paper focus on the implementations of Data Encryption Standard (DES) and Advanced Encryption Standard (AES) algorithms on Microblaze soft core Processor and also their implementations on XC6VLX240t FPGA using Verilog Hardware Description language. This paper also gives a comparison of the issues related to the hardware and software implementations of the two cryptographic algorithms.

Symmetric Encryption

2017 ◽  
Author(s):  
Keith M. Martin
Keyword(s):  
Stream Cipher ◽  
Block Cipher ◽  
Block Ciphers ◽  
Data Encryption ◽  
Advanced Encryption Standard ◽  
Symmetric Encryption ◽  
Modes Of Operation ◽  
Data Encryption Standard ◽  
Different Types ◽  
History Of

In this chapter, we focus on symmetric encryption. We begin by identifying two different types of symmetric encryption algorithm, namely, stream and block ciphers. We discuss the basic idea behind a stream cipher and consider their properties and applications. We then introduce block ciphers. We focus on two extremely important and influential block cipher algorithms, the Data Encryption Standard and the Advanced Encryption Standard, discussing the history of their development as well as their basic design. We then introduce the modes of operation of a block cipher, explaining why different modes have been proposed. We examine in detail four of the most well-established modes of operation and their core properties, as well as classifying other modes of operation.

IMPLEMENTASI ALGORITMA ADVANCED ENCRYPTION STANDARD DAN TRIPLE DATA ENCRYPTION STANDARD UNTUK MENGAMANKAN CITRA DIGITAL

2018 ◽  
Vol 2 (1) ◽  
Author(s):  
Mahadi Winafil ◽  
Sinar Sinurat ◽  
Taronisokhi Zebua
Keyword(s):  
Digital Images ◽  
Data Encryption ◽  
Advanced Encryption Standard ◽  
The Internet ◽  
Client Server ◽  
Data Encryption Standard ◽  
Aes Algorithm ◽  
Encryption And Decryption ◽  
Cryptographic Techniques ◽  
E Mail

Digital images that are personal and confidential are very vulnerable to wiretapping by irresponsible parties. Especially if distributed via the internet network such as on Facebook, WhatsApp and e-mail chat based applications. Images that are sent sometimes are often confidential images and must be maintained. In order to maintain the security of digital images can be done by utilizing cryptographic techniques. Cryptographic techniques can secure digital images by changing pixel values from digital images so as to produce different pixel values from the original image to be secured. This research will use AES 128 bit and Triple DES methods for encryption and decryption of digital images on client-server based applications. The results of the encryption AES algorithm will be re-encrypted with the Triple DES Algorithm so as to produce pixel values that are far different from the original pixel values. Keywords: cryptography, image, AES, Triple DES

Penerapan Kriptografi AES Class Untuk Pengamanan URL WEBSITE Dari Serangan SQL INJECTION

JURNAL UNITEK ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 34-48
Author(s):  
Ridwan Andriyanto ◽  
Khairijal Khairijal ◽  
Devit Satria
Keyword(s):  
Data Encryption ◽  
Advanced Encryption Standard ◽  
Sql Injection ◽  
Data Encryption Standard

Seiring penggunaan website yang semakin luas dapat menimbulkan berbagai macam tindak kejahatan seperti pencurian, manipulasi data atau informasi penting dari suatu website oleh orang yang tidak bertanggung jawab. Dalam pemrograman web terdapat dua metode untuk mengirimkan data dari client ke server, parameter POST method dan parameter GET method. GET method request menempatkan data yang  dikirimkan  pada  URL  web  yang  dituju. hal  ini  menjadi  salah  satu kelemahan  dari  GET  method  karena  nilai variable yang dikirim menggunakan GET method dapat dilihat pada bagian URL sehingga rentan terhadap serangan SQL injection. Salah satu metode kriptografi yang dapat digunakan adalah Advanced Encryption Standard (AES). AES adalah pengganti algoritma DES (Data Encryption Standard). Hasil penelitian menunjukkan bahwa Algoritma AES dapat mengenkripsi dan mendekripsi data URL sebuah website  dengan panjang kunci yang bervariasi, yaitu 128 bit, 192 bit, dan 256 bit. sehingga  dapat  menyamarkan informasi yang terdapat pada URL, Enkripsi URL ini menghasilkan keluaran berupa URL yang tidak menampilkan variabel asli melainkan chipertext hasil enkripsi.

scholarly journals Time performance analysis of advanced encryption standard and data encryption standard in data security transaction

2019 ◽  
Vol 16 (2) ◽  
pp. 988
Author(s):  
Zolidah Kasiran ◽  
Hikma Farah Ali ◽  
Noorhayati Mohamed Noor
Keyword(s):  
Performance Analysis ◽  
Data Security ◽  
Data Exchange ◽  
Data Communication ◽  
Data Encryption ◽  
Advanced Encryption Standard ◽  
File Format ◽  
Data Encryption Standard ◽  
Time Performance ◽  
Aes Algorithm

The advancement of the data communication technologies has increased the traffic of data exchange over the internet and at the same time created the opportunity of data attack by various party.  This paper present  Time Performance Analysis Of Advanced Encryption Standard And Data Encryption Standard  in Data Security Transaction<strong>. </strong>In this study we proposed an AES algorithm with  different key size, and different file format. Our aim is to safely to transfer the file for using the AES algorithm. Proposed algorithm has done by analyzing the different time taken for both AES and DES, experiments were done by three different file  format which were text, image, and voice. Each file format type was tested with five different file sizes. The result of each experiments were analysed and it was confirmed that  the AES algorithm have better performance in term of time taken as compared to DES.

scholarly journals Cloud based Secure Storage of Files using Hybrid Cryptography and Image Steganography

2020 ◽  
Vol 8 (6) ◽  
pp. 665-667
Keyword(s):  
Data Encryption ◽  
Image Steganography ◽  
Advanced Encryption Standard ◽  
Sensitive Information ◽  
Least Significant Bit ◽  
Data Encryption Standard ◽  
Secure Storage ◽  
Symmetric Key ◽  
Encryption Algorithms ◽  
High Level

Cloud Computing has made it possible to provide individuals as well as organizations with a utility that is costeffective. It empowers businesses by delivering these services using the internet. Files can be shared through the cloud. These files may contain sensitive information that needs to be kept hidden from anonymous users. This is done using cryptographic algorithms. High level of security can be provided using hybrid cryptography to encrypt the data. Advanced Encryption Standard (AES) and Triple Data Encryption Standard (3DES) are the symmetric key encryption algorithms used to secure. An asymmetric key encryption algorithm, Rivest-Shamir-Adleman (RSA) helps in providing a hybrid cryptography model. The security of the key generated can be further enhanced using image steganography method Least Significant Bit (LSB). These issues regarding the security and its challenges will be addressed in this paper and also analyse the measures to handle it.

AES Encryption Algorithm Hardware Implementation: Throughput and Area Comparison of 128, 192 and 256-bits Key

2012 ◽  
Vol 1 (2) ◽  
pp. 67 ◽  
Author(s):  
Samir El Adib ◽  
Naoufal Raissouni
Keyword(s):  
Hardware Implementation ◽  
Data Encryption ◽  
Encryption Algorithm ◽  
Advanced Encryption Standard ◽  
Data Encryption Standard ◽  
Security Applications ◽  
High Security ◽  
Aes Encryption Algorithm ◽  
Existing Data

<span lang="EN-US">Advanced Encryption Standard (AES) adopted by the National Institute of Standards and Technology (NIST) to replace existing Data Encryption Standard (DES), as the most widely used encryption algorithm in many security applications. Up to today, AES standard has key size variants of 128, 192, and 256-bit, where longer bit keys provide more secure ciphered text output. In the hardware perspective, bigger key size also means bigger area and small throughput. Some companies that employ ultra-high security in their systems may look for a key size bigger than 128-bit AES. In this paper, 128, 192 and 256-bit AES hardware are implemented and compared in terms of throughput and area. The target hardware used in this paper is Virtex XC5VLX50 FPGA from Xilinx. Total area and Throughput results are presented and graphically compared.</span>

scholarly journals Implementation of various data encryption methods for medical information transmission

2018 ◽  
Vol 7 (2.31) ◽  
pp. 219
Author(s):  
S Neelima ◽  
R Brinda
Keyword(s):  
Medical Information ◽  
Mathematical Expression ◽  
Data Encryption ◽  
The Other ◽  
Advanced Encryption Standard ◽  
Data Encryption Standard ◽  
Hash Algorithm ◽  
Encryption And Decryption ◽  
Secure Hash Algorithm ◽  
Readable Format

Encryption is the process of converting the data from readable format into unreadable format with help of any mathematical expression or sometimes with the help of key. On the other hand decryption is the reverse process of encryption with help of same key used at encryption or with the help of some other key. The paper presents the different methodology used for encryption and decryption. Several methods presented in the literature are reviewed. The methods- Rivest-Shamir-Adlemen algorithm, Data Encryption Standard, Advanced Encryption Standard and three different Secure Hash Algorithm are reviewed and implemented using various FPGA devices. The power consumption, delay and area are analyzed and compared. From the analyses it is been found that the performance of AES and SHA3 are better when compared to other algorithms. These algorithms provide high security when compared to rest of the methods.  

scholarly journals A true Random-Number Encryption Method employing block cipher and PRNG

2014 ◽  
Vol 11 (3) ◽  
pp. 905-924 ◽  
Author(s):  
Yi-Li Huang ◽  
Fang-Yie Leu ◽  
Jian-Hong Chen ◽  
Chu Cheng-Chung
Keyword(s):  
Block Cipher ◽  
Random Number ◽  
Data Encryption ◽  
Advanced Encryption Standard ◽  
Random Numbers ◽  
Security Level ◽  
Current Time ◽  
Data Encryption Standard ◽  
Time Points ◽  
Encryption Method

In January 1999, distributed.net collaborated with the Electronic Frontier Foundation to break a DES (i.e., Data Encryption Standard) key, spending 22 hours and 15 minutes, and implying that the DES is no longer a secure encryption method. In this paper, we propose a more secure one, called the True Random Number Encryption Method (TRNEM for short), which employs current time, true random numbers and system security codes as parameters of the encryption process to increase the security level of a system. The same plaintext file encrypted by the TRNEM at different time points generates different ciphertext files. So these files are difficult to be cracked. We also analyze the security of the DES, AES (i.e., Advanced Encryption Standard) and TRNEM, and explain why the TRNEM can effectively defend some specific attacks, and why it is safer than the DES and AES.

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