Comparative Analysis of Encryption-Decryption Data Use the Symmetrical Key Algorithm of Bit Inserted Carrier (BIC)
Ommi Alfina, Nita Syahputri, Ulfah Indriani, Dina Irmayanti Harahap, Erwin Ginting · 2018 6th International Conference on Cyber and IT Service Management (CITSM) · 2018
In general, techniques used to threaten data security are more advanced than the techniques used to secure data. Therefore, a security system that can protect data that is considered important by encrypting the data, and create a secret key to be able to open the data that is difficult to be detected by unauthorized parties. This study aims to establish a security system by using a cryptographic algorithm called Bit Inserted Carrier (BIC) where the basic concept of the BIC algorithm is to load bits of plain data into a file mixed with fake or noise data, protected by password or keys. The generation of false data (noise) and position placement settings of these bits are determined by a Pseudorandom Number Generator (PRNG) mechanism. Stages that the authors do to perform the process of forming the application include the stages of problem analysis, application design involving data flow diagrams, algorithms and flowcharts along with modeling the program structure and interface design applications, so that the application formed to be easy to use and has the optimal function. To ensure that all functions contained in the application system BIC algorithm work optimally, then the application system is tested and formed final conclusions. The built application only works to perform the encryption and decryption process and can not prevent outsiders from deleting the data. You should try not to use the same key to encrypt different files.