Comments on “How to repair the Hill cipher”

2008 ◽  
Vol 9 (2) ◽  
pp. 211-214 ◽  
Author(s):  
Y. Rangel-Romero ◽  
R. Vega-García ◽  
A. Menchaca-Méndez ◽  
D. Acoltzi-Cervantes ◽  
L. Martínez-Ramos ◽  
...  
Keyword(s):  
Hill Cipher ◽  
The Hill

STEGANOGRAFI DENGAN MENGGUNAKAN METODE LSB DAN ALGORITMA HILL CIPHER

2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Sherly Gina Supratman
Keyword(s):  
Digital Images ◽  
Text Messages ◽  
The Internet ◽  
Digital Imagery ◽  
Least Significant Bit ◽  
Hill Cipher ◽  
Secure Data ◽  
Audio Video ◽  
The Hill

AbstrakJaringan Komunikasi seperti Internet� merupakan jaringan yang tidak aman untuk mentransmisi data, seperti teks, audio,video dan citra digital. Salah satu cara untuk pengamanan data dapat dilakukan dengan menggunakan proses kriptografi dan �steganografi. Penggunaan ini dengan tujuan untuk merahasiakan pesan yang dikirim dan sekaligus menghindarkan pesan tersebut dari kecurigaan pihak lain yang tidak berkepentingan.Pesan yang digunakan dalam makalah ini adalah berupa text dengan menyisipkannya pada gambar. Pada proses kriptografi, pesan yang berupa text akan dienkrip dengan algoritma Hill Chiper, dan kemudian pesan yang telah dienkrip akan dilakukan proses steganografi pada citra digital� 8 bit dengan skala 0 � 255, dengan metode Least Significant Bit ( LSB ).�Kata kunci: Kriptografi, Hill Chiper, Steganografi, Least Significant Bit�AbstractCommunication Networks such as the Internet are unsafe networks for transmitting data, such as text, audio, video and digital imagery. One way to secure data can be done by using cryptography and steganography process. This use is for the purpose of concealing messages being transmitted and avoiding such messages from the suspicion by others who are not interested.The message used in this paper is text by inserting it in the image. In the cryptographic process, text messages will be encrypted with the Hill Chiper algorithm, and then the encrypted message will be steganographed on 8-bit digital images on a scale of 0-255, using the Least Significant Bit (LSB) method.�Keywords: Cryptography, Hill Chiper, Steganography, Least Significant Bit

Three-Pass Protocol Scheme for Securing Image Files Using the Hill Cipher 3x3 Algorithm

2021 ◽  
Author(s):  
Dian Rachmawati ◽  
Mohammad Andri Budiman ◽  
Wiro Tirta Habibi
Keyword(s):  
Hill Cipher ◽  
The Hill

A parallel time-memory tradeoff attack on the Hill cipher

Cryptologia ◽  
2018 ◽  
Vol 42 (5) ◽  
pp. 408-426
Author(s):  
Tim McDevitt ◽  
Jessica Lehr ◽  
Ting Gu
Keyword(s):  
Parallel Time ◽  
Hill Cipher ◽  
Time Memory Tradeoff ◽  
The Hill

ON THE KEYSPACE OF THE HILL CIPHER

Cryptologia ◽  
2005 ◽  
Vol 29 (1) ◽  
pp. 59-72 ◽  
Author(s):  
Jeffrey Overbey ◽  
William Traves ◽  
Jerzy Wojdylo
Keyword(s):  
Hill Cipher ◽  
The Hill

Hybird Cryptosystem Algoritma Hill Cipher Dan Algoritma ElGamal Pada Keamanan Citra

2020 ◽  
Vol 4 (1) ◽  
pp. 1-9
Author(s):  
Suci Ramadani ◽  
Keyword(s):  
Data Storage ◽  
Programming Language ◽  
Image Encryption ◽  
Data Security ◽  
Visual Basic ◽  
Encrypted Image ◽  
Discrete Algorithms ◽  
Hill Cipher ◽  
Exchange Information ◽  
The Hill

The development of technology at this time allows everyone to exchange information without any limitation of time and distance. The possibility that data leakage will occur during the process of exchanging information is carried out, therefore in sending data especially images, security aspects, confidentiality and efficiency of data storage is very necessary. If the important information falls into the wrong hands, it will cause unwanted things, for example manipulation of images with negative shapes and can harm the owner of the image. One method used to maintain data security is cryptography using one of the techniques, Elgamal. The strength of this algorithm lies in the difficulty of calculating discrete algorithms on prime integers in which multiplication operations are performed. In this research, the writer combines Hill Cipher to do image encryption and Elgamal Algorithm to decrypt the key of Hill Cipher. The image is first encrypted using the Hill Cipher, then the Hill Cipher key is encrypted using the Elgamal Algorithm. The implementation of the system uses the programming language Visual Basic Net 2010. The results of the implementation with the initial encrypted image has 4282.85 milliseconds with random images, while the encrypted image will be re-described as having 20442.84 milliseconds with the image returned to the beginning.

How to repair the Hill cipher

2006 ◽  
Vol 7 (12) ◽  
pp. 2022-2030 ◽  
Author(s):  
I. A. Ismail ◽  
Mohammed Amin ◽  
Hossam Diab
Keyword(s):  
Hill Cipher ◽  
The Hill

scholarly journals A Modifying of Hill Cipher Algorithm with 3 Substitution Caesar Cipher

2017 ◽  
Vol 1 ◽  
pp. 157-163
Author(s):  
Azzam Mujaddid ◽  
Sumarsono Sumarsono
Keyword(s):  
Matrix Multiplication ◽  
Process Modification ◽  
Hill Cipher ◽  
Encryption And Decryption ◽  
Time Required ◽  
The Hill

The hill cipher algorithm has the uniqueness of using matrix multiplication in the process where the key used is a matrix that has weaknesses in the process of encryption and decryption. In this paper will be modified to the encryption process with caesar cipher substitution. The principle of the hill cipher algorithm using the multiplication of the 2x2 key matrix of keys is enhanced through process modification lies in the combination of initial character determination using the substitution of 3 caesar ciphers. From the results of this modification can be seen that the more the number of characters processed the time required will be longer. The magnitude of the determinant also affects time and size during the poses. A 1 character increment occurs if the initial character of the encryption process is an odd number.

scholarly journals Application of Hill Cipher Algorithm in Securing Text Messages

2018 ◽  
Author(s):  
Andysah Putera Utama Siahaan
Keyword(s):  
Computer Security ◽  
Matrix Theory ◽  
Text Messages ◽  
Symmetric Cryptography ◽  
Cryptographic Algorithm ◽  
Hill Cipher ◽  
Encryption And Decryption ◽  
The Matrix ◽  
Cryptographic Techniques ◽  
The Hill

Computer security aims to help users prevent fraud or detect fraud in an information-based system. The information must be secured to be free from threats. Cryptographic techniques can prevent data theft. One cryptographic algorithm is Hill Cipher. This algorithm is one symmetric cryptography algorithm. The Hill Cipher algorithm uses an m x m sized matrix as the key to encryption and decryption. The fundamental matrix theory used in Hill Cipher is multiplication between matrices and inverses the matrix. Hill Cipher has two types of matrices in general, 2 x 2 and 3 x 3. This study discusses the order 2 x 2. The application of Hill Cipher in text-shaped media is highly recommended because it has fast encryption and decryption speeds. This method is very good at securing data that will be transmitted on an open network.

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