Analisis Kinerja Algoritma Kriptografi Kandidat Advanced Encryption Standard (AES) pada Smartphone

Farisi, Ahmad

doi:10.35957/jatisi.v4i2.103

Cited by 5 publications

(9 citation statements)

References 5 publications

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“…AES dipilih oleh National Institute of Standards and Technologi (NIST) melalui sayembara. Tiga algoritma dengan peringkat teratas secara berturut-turut adalah Rijndael yang terpilih sebagai AES, Serpent, dan Twofish [8].…”

Section: Latar Belakangunclassified

Perbandingan Kinerja Algoritma Kandidat AES Dalam Enkripsi dan Dekripsi File Dokumen

Sansaya

Farisi²

2023

MDP-SC

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File dokumen adalah salah satu bentuk informasi yang berharga sehingga diperlukan sistem keamanan untuk menjaga agar informasi didalamnya tidak dapat diakses oleh pihak yang tidak berwenang dengan kriptografi. Teknologi yang dapat menerapkan kriptografi adalah android yang dikenal memiliki mobilitas tinggi, dengan keterbatasan kinerja. Untuk itu dibutuhkan algoritma kriptografi dengan kinerja efisien untuk melakukan kriptografi file dokumen pada platform android. Penelitian ini bertujuan untuk membandingkan kinerja algoritma kriptografi Kandidat AES dalam enkripsi dan dekripsi file dokumen di perangkat android. Pengujian akan mengukur waktu, penggunaan memori, persentase CPU, ukuran file, kecepatan enkripsi, dan avalanche effect. Hasil pengujian menunjukkan waktu enkripsi tercepat adalah 196.51 ms, waktu dekripsi tercepat 204.04 ms, oleh Rijndael. Penggunaan memori peling efisien 1547.9 KB dan 1464.19 KB oleh Serpent. Persentase penggunaan CPU paling efisien 6.43% dan 4.28%, oleh Rijndael. Kecepatan enkripsi tertinggi 9825.68 KB/detik dan kecepatan dekripsi 9241.42 KB/detik oleh Rijndael. Rata-rata avalanche effect tertinggi 49.99% oleh algoritma Twofish.

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Section: Latar Belakangunclassified

Perbandingan Kinerja Algoritma Kandidat AES Dalam Enkripsi dan Dekripsi File Dokumen

Sansaya

Farisi²

2023

MDP-SC

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“…The key used in the decryption process can be different from the key used in the encryption process, it is also called public key cryptography. Conversely, if the key used is the same, it is also called symmetric key cryptography [5].…”

Section: Descriptionmentioning

confidence: 99%

“…First iteration: i = 0, then j = (j + S[i] + K[i] ) mod 8 = (j + S[0] + K[0] ) mod 8 = (0 + 0 + 1 ) mod 8 = 1 Swap S[0] and S[1] to produce an array S: 10010111 Second iteration: i = 1, then j = (j + S[i] + K[i] ) mod 8 = (j + S[1] + K[1] ) mod 8 = (1 + 0 + 7 ) mod 8 = 1 Swap S[1] and S[0] to produce an array S: 00010111 Third iteration: i = 2, then j = (j + S[i] + K[i]) mod 8 = (j + S[2] + K[2] ) mod 8 = (0 + 0 + 1 ) mod 8 = 1 Swap S[2] and S[3] to produce an array S: 00110111 Fourth iteration: i = 3, then j = ( j + S[i] + K[i] ) mod 8 = ( j + S[3] + K[3] ) mod 8 = (1 + 1 + 7 ) mod 8 = 1 Swap S[3] and S[2] to produce an array S: 01100111 Fourth iteration: i = 4, then j = ( j + S[i] + K[i] ) mod 8 = ( j + S[4] + K [4] ) mod 8 = (1 + 0 + 1 ) mod 8 = 0 Swap S[4] and S[3] to produce an array S: 01010111 Fourth iteration: i = 5, then j = ( j + S[i] + K[i] ) mod 8 = ( j + S[5] + K[5] ) mod 8 = (0 + 1 + 7 ) mod 8 = 0 Swap S[5] and S[4] to produce an array S: 01100011 Fourth iteration: i = 6, then j = ( j + S[i] + K[i] ) mod 8 = ( j + S[6] + K[6] ) mod 8 = (0 + 1 + 1 ) mod 8 = 0 Swap S[6] and S[5] to produce an array S: 01100011 Fourth iteration: i = 7, then j = ( j + S[i] + K[i] ) mod 8 = ( j + S[3] + K[3] ) mod 8 = (0 + 1 + 7 ) mod 8 = 0 Swap S[7] and S[6] so as to produce an array S: 01100001 Fourth iteration: i = 8, then j = ( j + S[i] + K[i] ) mod 8 = ( j + S[8] + K[8] ) mod 8 = (0 + 1 + 1 ) mod 8 = 0 Swap S[8] and S[0] to produce an array S: 00110000 After getting the results of the S array from the fourth iteration, the next process is to XOR the pseudo randombyte with plaintext, with the entered plaintext is 10110000. Because the plaintext consists of two characters, two iterations occur.…”

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confidence: 99%

Analysis Of Voice Data Security Security By Using The Rc4 Algorithm

Nurhidayati¹,

Muis²

2021

Info Sains

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Data security and confidentiality is one of the most important aspects in the field of communication, especially communication using computer media. One of the fields of science that is used to secure data is cryptography. Cryptography is a science that uses mathematical equations to encrypt and decrypt data. Encryption is the process of converting plaintext (readable data) into ciphertext (unreadable data) and decryption is the opposite of encryption, which changes ciphertext back into plaintext. In this study, the RC4 algorithm will be discussed to encrypt and decrypt mp3 files stored on the computer.

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“…Tujuan penelitian adalah untuk melakukan proses penyandian data dan mengenkripsi dan mendeskripsi menggunakan metode twofish, Menerapakan metode twofish dan penyandian record [5], [6] menggunakan metode tersebut dan menerapkan metode twofish dan memprosesnya menggunakan Microsoft visual basic net 2008.…”

Section: Pendahuluanunclassified

Aplikasi Penyandian Record Menggunakan Metode Twofish

Asmawi¹

2020

JUKI

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Technological developments are increasingly progressing, for example for data security. Data security is very important in maintaining the confidentiality of information, especially sensitive information, which only authorized parties can know, moreover data storage is done on a computer, if the data is not secured in advance then the data will be known by the parties who are entitled to it. is not entitled to the security of data on the record, the data on the computer is not easily seen and cannot be changed by irresponsible parties so that the data will be safe and cannot be contested by any party One of the data safeguards is by using a cryptographic system, which is the encryption of the contents of the information (plaintext) into incomprehensible content through an encryption process (encoding) and to retrieve the original information, a description process (deschiper) is carried out accompanied by using the correct key. Data encryption or cryptography is the study of hiding letters or writings so that they cannot be read by unauthorized people. Cryptography has been used since the time of Julius Caesar, who sent messages to the commander but did not have a courier to carry the message. Cryptography has 2 (two) important parts, namely encryption and description. Encryption is the process of encrypting the original message into a message that cannot be interpreted as the original. Description is to change a message that has been interpreted to be the original message, usually called plaintext, while the message that has been interpreted is called ciphertext.

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Analisis Kinerja Algoritma Kriptografi Kandidat Advanced Encryption Standard (AES) pada Smartphone

Cited by 5 publications

References 5 publications

Perbandingan Kinerja Algoritma Kandidat AES Dalam Enkripsi dan Dekripsi File Dokumen

Perbandingan Kinerja Algoritma Kandidat AES Dalam Enkripsi dan Dekripsi File Dokumen

Analysis Of Voice Data Security Security By Using The Rc4 Algorithm

Aplikasi Penyandian Record Menggunakan Metode Twofish

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