Deny Nugroho Triwibowo, Purwono, Imam Ahmad Ashari, Arif Setia Sandi, Yusuf Fadlila Rahman
Message is an expression that is formed from a thought and feeling, reality, opinion, experience that has happened or will come, and so on. Currently, the exchange of information carried out by both the sender and the recipient has used several social media applications, such as whatsapp, telegram, line, and many more. Messages sent and received through social media applications must be connected to the internet network for the communication process in which the message can be stolen by irresponsible parties, because these parties are also connected to the same internet network. One way that can be done so that the message sent is maintained and more secure, the process of securing the data and information contained in the message is carried out. The Linear Congruential Generator (LCG) algorithm will generate a random key value and convert it into Morse code form. The results obtained from the modification of the LCG algorithm and Morse code are very helpful in the encryption process which makes the encryption results obtained quite difficult to solve because in the encryption process one plaintext character is replaced with a dot sign (.) and a minus sign (-) on the ciphertext. © 2021, Universitas Ahmad Dahlan. All rights reserved.
Program Studi Teknologi Informasi, Universitas Harapan Bangsa, Indonesia; Program Studi Informatika, Universitas Harapan Bangsa, Indonesia; D3 Teknik Informatika, Sekolah Vokasi, Universitas Sebelas Maret, Surakarta, Indonesia
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