Developing ICT as English Language Teaching (ELT) materials in Indonesia is still being studied in higher education contexts. Nowadays, amid covid 19 there are many tools, apps and technologies are being integration in virtual classroom.  ICT can be used as media for teaching and learning process it should be related today’s fact by integrating ICT easy enough to share it and easy to access by the students’ technologies devices (Muthmainnah, et.all, 2021 and Apriani et.al, 2021 The purposes of this study is to investigate the impact of development instructional design incorporating social media- movie based learning project (SMMBLP) in Computer Science Faculty in learning English to engagement student’s online environment. The method of this study is quantitative research and used pre-experimental design to investigates the impact of SMMBLP on students’ English skill and student’s motivation in ELT. The participants in this study were the first semester students of Computer Science Faculty academic year 2020-2021 at Universitas Al Asyariah Mandar consisted 40 students. The data were collected by test; pre-test, post-test and questionnaire.  The result of the study implied the impact on integration social media- movie based learning project (SMMBLP) that very effective to enhancing students’ English skill and motivation. The study suggests SMMBL can be integration in online or Hybrid/ Blended environment for the next education teaching model in ELT for EFL students.

Digital technologies grow more rapidly; information security threats are becoming increasingly dangerous. Advanced and various cyber-attacks and security threats, like targeted emails, and information exploitation, pose a critical threat that basically undermines our trust in the digital society. Rivest cipher 4 (RC4) algorithm is a significant cipher of a stream that could be utilized with protocols of the internet, the advantage of the RC4 algorithm is that it is simple and effective. There are several weak, especially after the pseudo-random generation algorithm (PRGA), PRGA's initially 256 rounds (the amount of the RC4 permutation). Several modified RC4 studies have been published thus far, however, they all face either standard privacy or achievement evaluation issues. This paper proposes a new RC4 algorithm that is based on the user's retina (RC4-Retina), which has solved both of these weak points it was indicated in the standard RC4 algorithm. The novelty of retina key scheduling algorithm (RKSA), which is generated by relying on the user's retina of the algorithm will modify the matrix of permutation used to configure the keys. The efficiency of the improved algorithm was measured by depending on the average security of ciphertext of different keys and different messages, results were good compared to the standard algorithm.

The world is entering into the era of Big Data where computer networks are an essential part. However, the current network architecture is not very convenient to configure such leap. Software defined network (SDN) is a new network architecture which argues the separation of control and data planes of the network devices by centralizing the former in high level, centralised devices and efficient supervisors, called controllers. This paper proposes a mathematical model that helps optimizing the locations of the controllers within the network while minimizing the overall cost under realistic constrains. Our method includes finding the minimum cost of placing the controllers; these costs are the network latency, controller processing power and link bandwidth. Different types of network topologies have been adopted to consider the data profile of the controllers, links of controllers and locations of switches. The results showed that as the size of input data increased, the time to find the optimal solution also increased in a non-polynomial time. In addition, the cost of solution is increased linearly with the input size. Furthermore, when increasing allocating possible locations of the controllers, for the same number of switches, the cost was found to be less.

No abstract