M. Mesran, Dahlan Abdullah, Dedy Hartama, R. Roslina, A. Asri, Robbi Rahim, Ansari Saleh Ahmar
Keeping the data intact without changing becomes an important factor in a communication, the data itself has many forms such as text data, audio data, image data and for secure every form data an algorithm Base64 are needed, Base64 algorithm is used as data format to transmit data due to the result of base64 itself, but Base64 algorithm is not safe enough because it is easy to decoding and get the original form data, therefore need additional security and in this research combined with Hashing Variable Length (HAVAL) algorithm, HAVAL algorithm has a way work secures and compresses plaintext, so the encoding result from Base64 is re-secured and compressed using HAVAL algorithm with length of hashing 32 bit or 4 bytes so when data transmission process will not take many bytes of data compared with Base64 algorithm. © Published under licence by IOP Publishing Ltd.
Department of Informatics Engineering, STMIK Budi Darma, Medan, Indonesia; Department of Informatics, Universitas Malikussaleh, Aceh, Indonesia; Department of Information System, STIKOM Tunas Bangsa, Pematang Siantar, Indonesia; Department of Informatics and Computer Engineering, Politeknik Negeri Medan, Medan, Indonesia; Department of Electrical, Universitas Malikussaleh, Aceh, Indonesia; School of Computer and Communication Engineering, Universiti Malaysia Perlis, Kubang Gajah, Malaysia; Department of Statistics, Universitas Negeri Makassar, Makassar, Indonesia
