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All Journal Jurnal Riset Kesehatan Nasional Jurnal Berita Ilmu Keperawatan Journal of Technology and Computer (JOTECHCOM)
Darsana, Wayan
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Computer Science & IT Health Professions Immunology & microbiology Medicine & Pharmacology Nursing Public Health

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Journal : Journal of Technology and Computer (JOTECHCOM)

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Application of Classical Cryptography in Text Communication Darsana, Wayan
Journal of Technology and Computer Vol. 1 No. 1 (2024): February 2024 - Journal of Technology and Computer
Publisher : PT. Technology Laboratories Indonesia (TechnoLabs)

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Abstract

Advancements in data communications and computer networks have facilitated communication among numerous individuals using various hardware and software technologies. However, this progress also brings about a significant challenge: data and information security. Safeguarding data and information transmitted over communication networks necessitates the implementation of a data security system. One effective approach to achieve this is by utilizing cryptographic techniques. Cryptography involves encoding data transmitted through a network in a manner that only authorized parties can decipher. Data that remains unencrypted is referred to as plaintext, and once encrypted, it becomes ciphertext. Before the advent of computers, cryptography relied on character-based algorithms, often known as classical cryptographic algorithms. This research focuses on applying classical cryptography to encrypt and decrypt text data exchanged via chat applications. The test results demonstrate that the encryption and decryption processes effectively maintain data confidentiality.
Co-Authors Adnyana, Agus Widhi Ariwati, Sri Besral . Budi Anna Keliat Garniswari, G Gunantari, G I Gusti Agung Tresna Wicaksana I Gusti Ayu Rai Rahayuni I Ketut Alit Adianta Ida Ayu Putri Wulandari Irawati, Ari Lesia, Dian Ni Made Dian Sulistiowati Sulasmi, Ni Putu Widya