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All Journal Telematika JURNAL REKAYASA TEKNOLOGI INFORMASI Compiler Digital Zone: Jurnal Teknologi Informasi dan Komunikasi CCIT (Creative Communication and Innovative Technology) Journal Jurnal Mantik Teknomatika: Jurnal Informatika dan Komputer
Dony Ariyus
Universitas AMIKOM Yogyakarta
Computer Science & IT Economics, Econometrics & Finance Education Engineering Languange, Linguistic, Communication & Media

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Journal : Jurnal Mantik

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Modification of Two Algorithms Playfair And Caesar Chiper Al-gorithm Using Postal Code City: Modification of Two Algorithms Playfair And Caesar Chiper Al-gorithm Using Postal Code City Sewindu Putro; Sumbogo Wisnu Pamungkas; Dony Ariyus
Jurnal Mantik Vol. 3 No. 4 (2020): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

Privacy and data security is one of the most important aspects that need to be addressed, especially in this digital age where all desktop and mobile computing devices can be connected to one another in a virtual world that causes virtually impossible to protect the message to its destination. The purpose of this study is a modification of the Playfair cipher algorithm and caesar cipher with the postal code of the city, aims to produce a ciphertext that is more complex and not easily solved. In this penelian also implement LSB steganography method so that the message content more secure and not readily known by those who do not have an interest. From the test results of this study showed that by modifying the Playfair cipher algorithm and caesar cipher with city postal code in the encoding, produce ciphertext more complicated to be returned to the original message by parties who have no interest. Applying LSB steganography method makes the observer is not aware of the information that is pasted on the image that acts as a message.
Message Encryption Using Spinning Caesar XOR Binary Cryptography Algorithm (SPICA-XB): Message Encryption Using Spinning Caesar XOR Binary Cryptography Algorithm (SPICA-XB) Akrilvalerat Deainert Wierfi; Agung Jasuma; Dony Ariyus
Jurnal Mantik Vol. 3 No. 4 (2020): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (521.681 KB)

Abstract

Data security is a mechanism to protecting data and any attempt to impose limits on a system for access that does not have an authority (unauthorized person) causes poses a risk to valuable fan-sensitive information. To improve security in the text, images, video, and audio can be done by using two data security techniques such as cryptography and steganography. Cryptography is the process of plaintext to ciphertext randomizing using certain patterns. The secret message steganography focuses on inserting data or secret messages into other data such as text, images, video or audio. To increasing the security of data hiding, a combination of the two techniques is used wherein the initial data or message will be encrypted using the SPICA-XB algorithm which is a combination of two cryptographic algorithms namely spinning caesar and binary XOR.
Co-Authors Agung Jasuma Akrilvalerat Deainert Wierfi Bayu Trisna Pratama Christin Nandari Dengen Fajar Sudana Putra Friden Elefri Neno Hanifatus Sadiyah Hasan, Nur Fitrianingsih Raynaldi Fatih Amanullah Rini Wijayanti Sewindu Putro Siska Febriani Sumbogo Wisnu Pamungkas Vera Wati Yulius Nahak Tetik