Lana Fitrotun Nuha (2020) Pengamanan File MP3 Menggunakan Algoritma Advanced Encryption Standard ( AES ). Skripsi thesis, UNIVERSITAS AIRLANGGA.

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Abstract

The very rapid development of the music industry at this time has made music artists intensively produce new works. There are many works that have been created, in the form of songs produced in MP3 files. If the file is successfully duplicated and distributed by irresponsible people, it is a copyright violation. Therefore it is necessary to secure the MP3 audio file format. In this thesis, a research is conducted which aims to apply the Advanced Encryption Standard (AES) Algorithm for securing MP3 files. This security is done by encrypting the file with a special key. The bytes of the file are encrypted with 4 main steps namely, AddRoundKey, SubBytes, ShiftRow, MixColoumns. Prior to the encryption process, the Advanced Encryption Standard (AES) algorithm key will be expanded. While in the description process there are 4 main stages, namely, AddRoundKey, InvSubBytes, InvShiftRow, InvMixColoumns. Prior to the description process, a key expansion will also be carried out. The program used to perform cryptography using the Advanced Encryption Standard (AES) algorithm is the Microsoft Visual Basic 6.0 programming language. The results of the implementation of the MP3 file filebesar.mp3 with the key "MATHEMATICS", obtained the results of the encryption of files with different bytes value from the original or cannot be played, In the description result, the encrypted file can return to the original MP3 file.

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