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All Journal Proceeding of the Electrical Engineering Computer Science and Informatics Jurnal Ilmiah FIFO Jurnal Pasopati : Pengabdian Masyarakat dan Inovasi Pengembangan Teknologi
Anggraeni, Merry
Budi Luhur University
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Electrical & Electronics Engineering Environmental Science Industrial & Manufacturing Engineering

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ANALYSIS STEGO-IMAGE EXTRACTION USING ROT13 AND LEAST SIGNIFICANT BIT (LSB) ALGORITHM METHOD ON TEXT SECURITY Hillman Akhyar Damanik; Merry Anggraeni; Tomi Defisa
Jurnal Ilmiah FIFO Vol 9, No 2 (2017)
Publisher : Fakultas Ilmu Komputer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/fifo.2017.v9i2.008

Abstract

Cryptography is both a science and an art to keep the message confidential. While steganography is the science and art of hiding secret messages in other messages so that the existence of such secret messages is unknowable and generally serves to disguise the existence of confidential data making it difficult to detect and protect the copyright of a product. Steganography requires two properties, namely container media and secret messages. The application of steganographic and cryptographic combination is done by Least Significant Bit (LSB) and ROT13 algorithm. Steganography with the LSB method is one of the methods used to hide messages on digital media by inserting it to the lowest bits or the most right bits of the pixel data that compile the file. In this research, the authors propose the technique of securing Steganography secret messages with layered security, by adding Cryptography to secret messages that will be inserted into digital images and then messages inserted into digital images through Steganography using LSB method.
Optimization Info Rate Using APSK Modulation Scheme for Delivery GSM ABIS over Satellite Communications Hillman Damanik; Merry Anggraeni
Proceeding of the Electrical Engineering Computer Science and Informatics Vol 6: EECSI 2019
Publisher : IAES Indonesia Section

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eecsi.v6.1979

Abstract

Mobile operators move quickly from 2G GSM networks in urban areas to remote rural areas, which are 2G networks by offering voice connectivity. As a result, more and more technology is optimizing cellular operators that reduce and perform bandwidth efficiency that will be implemented. The optimization solution for this cellular operator produces voice communication on GSM, in a cost-effective application for satellites. This paper discusses and applies to creating GSM links via satellite communication. The ABIS interface on GSM, which is defined between the Base Transceiver Station (BTS) of GSM remote cells and the Base Station Controller (BSC), is considered here to be transferred via GSM communication with the Modulation and Coding scheme 16 APSK 5/6. The MODCOD scheme determines the efficiency of what MHz is needed to send one Mbps. The efficiency value achieved by allocating, bandwidth (MHz) generated by 1.0 Mhz is an efficiency of 3.222 [bit / baud]. And Info Data Rate is generated from the value (Mbps) of 3,175. The highest traffic intensity with the value of Traffic Volume (Hours) = 3.5, Traffic Intensity (Erlang) 0.145833333. While the lowest traffic intensity with the value of Traffic Volume (Hour) = 2.6, traffic intensity = 0.108333333 (Erlang). The value obtained on Traffic Volume and Traffic Intensity is 0.1%. Service levels are very good at grade of service, because of the small possibility of access fail. Calculation of the availability of link network availability links, using ACM 16APSK LDPC 5/6 techniques that can increase up to 100%.
PENINGKATAN KOMPETENSI SISWA SMK AN-NURMANIYAH MELALUI PELATIHAN VPN-EOIP DAN PPTP-TUNNELING PADA SKALA JARINGAN MULTI-SITE Hillman Akhyar Damanik; Merry Anggraeni
Jurnal Pasopati : Pengabdian Masyarakat dan Inovasi Pengembangan Teknologi Vol 4, No 4 (2022)
Publisher : Fakultas Teknik Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/pasopati.2022.15748

Abstract

Program  kegiatan  pengabdian pada masyarakat  yang  kami  usulkan, bermitra dengan SMK An-Nurmaniyah Tangerang. Sasaran  utama  yang menjadi  tujuan adalah  siswa-siswi Teknik Komputer dan Jaringan (TKJ) SMK An-Nurmaniyah. Sebagai siswa-siswi pada jurusan TKJ pada tujuannya adalah siap pakai pada dunia dan industri kerja, mengharuskan pengetahuan tentang teknologi khususnya perkembangan pada bidang konektivitas jaringan. Aktivitas pembelajaran yang diajarkan oleh guru hanya sebatas pengetahuan mendasar mengenai  kompetensi dan pembahasan materi ajar yang  harus  dimiliki  siswa dan siswi, tanpa dapat merepresentasikannya pada bidang jurusan Teknik Komputer dan Jaringan (TKJ) yang akan nantinya digunakan atau diterapkan pada dunia industri. Hal ini ditemui ketika siswa-siswi melaksanakan kegiatan Prakerin/PKL di dunia industri. Perangkat yang tersedia untuk kegiatan praktik terbatas dan tidak terpenuhinya perangkat sesuai standard industri, dan perlu adanya tool atau aplikasi yang dapat diterapkan sebagai pengganti perangkat real, namun dapat digunakan oleh para siswi-siswi sebagai real device ketika kegiatan praktik dilangsungkan.Hasil implementasi kegiatan PKM berupa implementasi VPN Tunneling Protocol, menggunakan metode EOIP Protocol dan PPTP Protocol, dengan memanfaatkan perangkat Router Mikrotik RB951Ui-2HND dan Modem HSDPA 4G. Kemudian untuk skema pada virtualisasi menggunakan metode VLAN Bridging pada konektivitas jaringan yaitu Wide Area Network (WAN). Hasil dari materi yang diujikan menghasilkan kapasitas keilmuan sebesar rata-rata 45% untuk materi dari kategori pembahasan.Kata kunci : galangan, tradisional, desain, kapal, Software , produktivitas Software
Co-Authors Damanik, Hillman Damanik, Hillman Akhyar Hillman Damanik Tomi Defisa