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.  

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

Comparative Study of Cryptographic Algorithms

2019 ◽  
Vol 8 (1) ◽  
pp. 13-22
Author(s):  
Mohanad ABDULHAMID ◽  
Nyagathu GICHUKI
Keyword(s):  
Comparative Study ◽  
Data Encryption ◽  
The Other ◽  
Public Key ◽  
Data Encryption Standard ◽  
Private Key ◽  
Other Hand ◽  
Encryption And Decryption ◽  
Cryptographic Algorithms

This paper presents a comparative study of two cryptosystems, Data Encryption Standard (DES) and the Rivest-Shamir-Adleman (RSA) schemes. DES is a symmetric (or private) key cipher. This means that the same key is used for encryption and decryption. RSA, on the other hand, is an asymmetric (or public) key cipher, meaning that two keys are used, one for encryption and the other for decryption. The objective of this paper is to implement these two schemes in software. The program is written in the Java™ language. It generates a key from a passphrase given by the user, encrypts and decrypts a message using the same key, for the case of DES. In RSA, decryption is done by computing the decryption key from the encryption key. Finally, the program returns the time taken to encrypt and decrypt a message.

scholarly journals FPGA Implementations for Data Encryption and Decryption via Concurrent and Parallel Computation: A Review

2021 ◽  
Vol 1 (2) ◽  
pp. 8-16
Author(s):  
Abdulmajeed Adil Yazdeen ◽  
Subhi R. M. Zeebaree ◽  
Mohammed Mohammed Sadeeq ◽  
Shakir Fattah Kak ◽  
Omar M. Ahmed ◽  
...  
Keyword(s):  
Data Security ◽  
Essential Role ◽  
Hardware Implementation ◽  
Data Encryption ◽  
Advanced Encryption Standard ◽  
Data Encryption Standard ◽  
Gate Arrays ◽  
Encryption And Decryption ◽  
User Data ◽  
Exhaustive Study

In recent days, increasing numbers of Internet and wireless network users have helped accelerate the need for encryption mechanisms and devices to protect user data sharing across an unsecured network. Data security, integrity, and verification may be used due to these features. In internet traffic encryption, symmetrical block chips play an essential role. Data Encryption Standard (DES) and Advanced Encryption Standard (AES) ensure privacy encryption underlying data protection standards. The DES and the AES provide information security. DES and AES have the distinction of being introduced in both hardware and applications. DES and AES hardware implementation has many advantages, such as increased performance and improved safety. This paper provides an exhaustive study of the implementation by DES and AES of field programming gate arrays (FPGAs) using both DES and AES. Since FPGAs can be defined as just one mission, computers are superior to them.

scholarly journals APPLICATION OF CRYPTOGRAPHY WITH DATA ENCRYPTION STANDARD (DES) ALGORITHM IN PICTURE

2020 ◽  
Vol 4 (2) ◽  
pp. 9
Author(s):  
Angga Aditya Permana ◽  
Desi Nurnaningsih
Keyword(s):  
Block Cipher ◽  
Data Encryption ◽  
Third Party ◽  
Original Text ◽  
Symmetric Cryptography ◽  
Data Confidentiality ◽  
Data Encryption Standard ◽  
The Third ◽  
Encryption And Decryption ◽  
The One

Cryptography is the science of maintaining data confidentiality, where the original text (plaintext) is encrypted using an encryption key to be ciphertext (text that has been encrypted). In this case cryptography secures data from a third party so that the third party cannot know the original contents of the data because the one who holds the key for encryption and decryption is only the sender and receiver. There are several cryptographic methods that are commonly used, one of which is DES or Data Encryption Standard. DES is included in the key-symmetric cryptography and is classified as a block cipher type

scholarly journals 4, 8, 32, 64 bit Substitution Box generation using Irreducible or Reducible Polynomials over Galois Field GF(pq)

2017 ◽  
Author(s):  
Sankhanil Dey ◽  
Ranjan Ghosh
Keyword(s):  
Boolean Functions ◽  
Galois Field ◽  
Data Encryption ◽  
First Century ◽  
Additive Constant ◽  
Substitution Box ◽  
Data Encryption Standard ◽  
Substitution Boxes ◽  
Early Twenty ◽  
Encryption And Decryption

Substitution Box or S-Box had been generated using 4-bit Boolean Functions (BFs) for Encryption and Decryption Algorithm of Lucifer and Data Encryption Standard (DES) in late sixties and late seventies respectively. The S-Box of Advance Encryption Standard have also been generated using Irreducible Polynomials over Galois field GF(28) adding an additive constant in early twenty first century. In this paper Substitution Boxes have been generated from Irreducible or Reducible Polynomials over Galois field GF(pq). Binary Galois fields have been used to generate Substitution Boxes. Since the Galois Field Number or the Number generated from coefficients of a polynomial over a particular Binary Galois field (2q) is similar to log2q+1 bit BFs. So generation of log2q+1 bit S-Boxes is possible. Now if p = prime or non-prime number then generation of S-Boxes is possible using Galois field GF (pq ), where q = p-1.

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.

A SEEP (Security Enhanced Electronic Payment) Protocol Design Using 3BC, ECC (F), and HECC Algorithm

2008 ◽  
pp. 639-653
Author(s):  
Byung Kwan Lee ◽  
Seung Hae Yang ◽  
Tai-Chi Lee
Keyword(s):  
Elliptic Curve ◽  
Data Encryption ◽  
Elliptic Curve Cryptosystem ◽  
Electronic Payment ◽  
The Public ◽  
Payment Protocol ◽  
Hash Algorithm ◽  
Set Protocol ◽  
Secure Hash Algorithm ◽  
Hyper Elliptic Curve

Unlike SET (Secure Electronic Transaction) protocol, this paper proposes a SEEP (Security Enhanced Electronic Payment) protocol, which uses ECC (Elliptic Curve Cryptosystem with F2m not Fp) (Koblitz, 1987; Harper, Menezes, & Vanstone, 1993; Miller, 1986), SHA (Secure Hash Algorithm), and 3BC (Block Byte Bit Cipher) instead of RSA and DES. To improve the strength of encryption and the speed of processing, the public key and the private key of ECC and HECC (Hyper Elliptic Curve Cryptosystem) are used in 3BC (Cho & Lee, 2002; Cho, Shin, Lee, & Lee, 2002) algorithm, which generates session keys for the data encryption. In particular, when ECC and HECC are combined with 3BC, the strength of security is improved significantly. As the process of the digital envelope used in the existing SET protocol is removed by the 3BC algorithm in this paper, the processing time is reduced substantially. In addition, the use of multiple signatures has some advantages, such as reducing the size of transmission data as an intermediate payment agent and avoiding the danger of eavesdropping of private keys.

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.

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