Implementasi Algoritma Advanced Encryption Standard (AES) pada Layanan SMS Desa

Abstract

Along with the development of technology, Short Message Service (SMS) has begun to be used to communicate between someone and the system in an agency. But in some cases, the security of messages sent through the SMS application has not been well protected. To improve data security and confidentiality, cryptographic algorithms with Advanced Encryption Standard (AES) can be done. The method used is the Waterfall method. AES encryption testing is done by comparing the manual calculations and the results of the encryption on the system. Blackbox test, CrackStation test, and Avalanche Effect (AE) test were also carried out. Brute force test results using CrackStation software that ciphertext cannot be solved. And in the avalanche effect (AE) test, the AE value of each 128-bit AES key is 44.53%, 192-bit is 48.44%, and 256-bit is 56.25%. Therefore, 192-bit and 256-bit AES keys are recommended for use because AE values are in the range of 45% - 60%.

Combination of AES (Advanced Encryption Standard) and SHA256 Algorithms for Data Security in Bill Payment Applications

“…The key size of AES can be 128 bits, 192 bits, or 256 bits, which affects the number of rounds in the encryption and decryption process. A comparison of the number of rounds and key length is given in The AES encryption process begins with the input of data into a "state", involving steps such as AddRoundKey, SubBytes, ShiftRows, MixColumns, and AddRoundKey that are repeated a certain number of rounds [11]. The encryption process diagram, as seen in Figure 3, provides a visual illustration of these steps.…”

Implementasi AES ECB dan Hashing MD5/SHA-256 Pada Aplikasi Penyuratan Android

“…Penelitian yang dilakukan oleh Fitriani dan Utomo [16] yaitu mengimplementasikan algoritma AES untuk keamanan SMS desa dengan menggunakan layanan SMS Gateway. SMS dapat dienkripsi dan didekripsi dengan kunci yang sama oleh algoritma AES yang tidak dapat ditembus oleh perangkat lunak penyerang.…”

Implementasi Algoritma Advanced Encryption Standard untuk Pengamanan Data Pengguna Aplikasi Media Sosial VirCle

“…Hasil pengukuran waktu proses untuk data uji 30 pengguna disajikan pada Gambar 5. Berdasarkan evaluasi AE, algoritma yang baik memiliki nilai minimal 45% -50%, dimana semakin besar persentasi yang didapat semakin baik tingkat keacakan yang dihasilkan sehingga meningkatkan kesulitan untuk memecahkan chipertext melalui analisis statistik atau cryptanalysis [20]- [23]. Dalam evaluasi ini, field data pengguna yaitu fullname dipilih sebagai data yang diuji.…”