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Saragih, John Darwis Martuadi
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Computer Science & IT Decision Sciences, Operations Research & Management Engineering

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Pengamanan Data Teks Menggunakan Algoritma Modular Multiplication Based Block Chiper Khair, Husnul; Pardede, Akim Manaor Hara; Saragih, John Darwis Martuadi
Journal Information System Development (ISD) Vol 6, No 1 (2021): Journal Information System Development (ISD)
Publisher : UNIVERSITAS PELITA HARAPAN

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Abstract

Pemanfaatan Teknologi Informasi dan Komunikasi (TIK) saat ini menjadi kebutuhan pokok bagi hampir seluruh penduduk bumi ini, dalam mencari informasi dan berkomunikasi kita akan memanfaatkan TIK. Salah satu pemanfaatan TIK melalui jaringan internet adalah cara pengiriman pesan teks melalui email, sosial media, atau alat komunikasi lainnya. Pesan yang disampaikan dari pengirim ke penerima ada kalanya berupa pesan yang bersifat rahasia sehingga tidak semua pihak dapat melihat pesan tersebut. Namun, seiring dengan berkembangnya hal tersebut berkembang pula  pelanggaran atau penyalah gunaan dalam keamanan data yang dikirim seperti dengan cara merusak, menyadap, merubah pesan tersebut untuk tujuan kepentingan si pelaku. Tindakan tersebut dapat membuat informasi atau pesan yang bersifat rahasia dapat dilihat oleh orang yang tidak bertanggung jawab. Dalam menangani masalah keaman data ini, perlu dilakukan penggunaan teknik peningkatan keamanan. Salah satu teknik yang dapat digunakan untuk mengamankan data adalah dengan menggunakan algoritma Modular Multiplication based Block Chiper (MMB), yang merupakan metode yang sederhana tidak terlalu kompleks namun pesan yang disembunyikan cukup aman.
Sistem Pakar Konseling Siswa SMA Menggunakan Metode Forward Chaining Sitompul, Juliana Naftali; Pardede, Akim Manaor Hara; Saragih, John Darwis Martuadi
Journal Information System Development (ISD) Vol 6, No 1 (2021): Journal Information System Development (ISD)
Publisher : UNIVERSITAS PELITA HARAPAN

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Abstract

The age range in Senior High School (SMA) is adolescents, adolescents generally find it difficult to open up to others, and it is also difficult to admit that they need guidance, even teenagers refuse the help adults want to provide. In connection with this, facilities are provided in schools to deal with problem students, in dealing with these problems a special teacher is provided, namely the Guidance and Counseling teacher (CT). Guidance for students is needed in making the right choices or for solving problems faced by humans in everyday life. Guidance must be done through a continuous process because as long as humans live, they definitely need help. With the presence of CT, it does not mean that the school is free from the problem of providing guidance and counseling to students, this is a new problem for schools because it is often found dishonesty or lack of openness of students who have problems in providing information to CT.To overcome the problem of the lack of openness of students in providing information during counseling, in this study a forward chaining method was designed which was implemented into an expert system that could help with problematic student counseling activities, so that using this expert system could assist counseling activities. teachers to facilitate counseling. towards students.
Co-Authors Khair, Husnul Pardede, Akim Manaor Hara