TY - JOUR AU - Arief Prasetyo AU - Sofyan Noor Arief AU - rokhimatul wakhidah PY - 2021/08/31 Y2 - 2024/03/28 TI - OPTIMIZATION OF RSA ENCRYPTION AND DECRYPTION PROCESSING ON SINGLE BOARD COMPUTER (SBC) WITH COMPUTATION LOAD SHARING IN A DISTRIBUTED SYSTEM JF - Jurnal Informatika Polinema JA - JIP VL - 7 IS - 4 SE - Articles DO - 10.33795/jip.v7i4.523 UR - http://jip.polinema.ac.id/ojs3/index.php/jip/article/view/523 AB - The RSA cryptographic algorithm is the most difficult method to crack because of the complexity of the mathematical equations used. The more complex the mathematical equation used, the greater the computational power used to process the algorithm. The use of Single-Board Computers (SBC) began to be used to replace computing processing tools such as personal computers in the form of laptops and workstations. This study aims to determine the optimization results of RSA encryption and decryption processing using SBC arranged as a cluster. The method used is the RSA encryption and decryption processing method by dividing the computational load applied to the SBC architecture based on the availability of resources at each SBC in the SBC cluster. The SBC cluster that is built consists of 5 SBC Raspberry Pi 4 model B connected via an 8 port switch. The results obtained are the encryption and decryption process in the SBC cluster can beat a single computer. An SBC cluster that has 16 cores out of 4 worker SBC processors runs faster than a single computer that has 4 cores of the processor. In addition, efficiency can also be obtained from the costs incurred to buy the device. With the same purchase cost, the performance obtained is higher in the SBC cluster so that SBC can be used as an alternative to encryption and decryption processing.   ER -