TY - JOUR
AU - Budiman, Mohammad Andri
AU - Muhammad Yogi Saputra,
AU - Handrizal,
PY - 2020/07/31
Y2 - 2022/08/11
TI - A Hybrid Cryptosystem Using Vigenère Cipher and Rabin-p Algorithm in Securing BMP Files
JF - Data Science: Journal of Computing and Applied Informatics
JA - Data Science: J. of Computing and Appl. Informatics
VL - 4
IS - 2
SE -
DO - 10.32734/jocai.v4.i2-4173
UR - https://talenta.usu.ac.id/JoCAI/article/view/4173
SP - 89-99
AB - <p>Vigenère cipher is a classical cryptography algorithm and similar to other classical algorithms, it produces smaller but less secure ciphertexts than a public key cryptography algorithm. Meanwhile, Rabin-<em>p</em> is a public key cryptography algorithm with a stronger encryption than Vigenère cipher. Nevertheless, as a public key algorithm, Rabin-<em>p</em> is inefficient to encrypt vast amounts of messages such as BMP image files, since the size of the cipherimages will increase manyfold and this would lead to a problem in storing and sending the cipherimages. To overcome these problems, in this study, we combined the Vigenère cipher and the Rabin-<em>p</em> algorithm in a hybrid cryptosystem scheme. In the experiment, the Vigenère cipher was used to encrypt the BMP files and the Rabin-<em>p</em> algorithm was used to encrypt the Vigenère keys. The result showed that the size of the cipherimages did not increase and the decryption procedure could recover the original BMP files while maintaining their integrity.</p>
ER -