scholarly journals A File Encoding Using A Combination of Advanced Encryption Standard, Cipher Block Chaining and Stream Cipher In Telkom Region 4 Semarang

2021 ◽  
Vol 6 (2) ◽  
pp. 54-61
Author(s):  
Lekso Budi Handoko ◽  
Andi Danang Krismawan
Keyword(s):  
Information Technology ◽  
Data Security ◽  
Stream Cipher ◽  
Information Leakage ◽  
Advanced Encryption Standard ◽  
Data Confidentiality ◽  
Avalanche Effect ◽  
Customer Data ◽  
Advance Encryption Standard ◽  
Block Chaining

The increase in significant advances in information technology greatly provides comfort and convenience in managing data. This convenience is what makes people who are not responsible for using it as a crime such as hacking, cracking, phishing, and so on. In Telkom Region 4 Semarang, there is a container where there are important company data such as customer data. Customer data is very important and the contents of the data must be kept confidential. The company has experienced significant losses due to information leakage due to negligence in the last 5 years. For this reason, data security is necessary so that data is safe and is not misused. This study applies the Advance Encryption Standard algorithm - Cipher Block Chaining (AES-CBC) and Stream cipher in order to secure data so as to reduce the risk of data theft by telecom subscribers. Based on the average avalanche effect value of AES-CBC and a stream cipher of 49.34%, this shows that the AES-CBC and Stream Cipher encrypted files are difficult to crack so that data confidentiality is well maintained.

Internet Cafe Billing System Data Security Using RC4 Stream Cipher

2021 ◽  
Vol 12 (02) ◽  
pp. 46-53
Author(s):  
Bobi Akbar
Keyword(s):  
Data Security ◽  
Stream Cipher ◽  
Data Communication ◽  
The Internet ◽  
Network System ◽  
Data Confidentiality ◽  
Billing System ◽  
System Data ◽  
Rc4 Stream Cipher ◽  
Case Data

In data communication, against a data security method known as cryptography (Cryptography). Cryptography is a data security method that can be used to maintain data confidentiality, data authenticity or integrity, and the authenticity of the sender. This method is intended so that important information of a limited or confidential nature sent through public telecommunications facilities cannot be known or utilized by unauthorized parties. In this case, data security is also needed at the internet cafe (internet cafe). Warnet which is a place that provides Interconnection Networking that connects computers to form a network system that covers the whole world (global). Each cafe requires a billing system that is used to determine the state of the user in using the facilities at the cafe, starting from how long it takes to use and how much it costs each user. For this reason, so that the data on the billing system cannot be manipulated or modified by unauthorized persons, it is necessary to secure data. The data security method that will be used is cryptography, especially by using the RC4 stream cipher.

scholarly journals Improvisasi algoritma advanced encryption standard (AES) dengan melakukan pemetaan s-box pada modifikasi mixcolumns

Repositor ◽  
2019 ◽  
Vol 1 (2) ◽  
pp. 95
Author(s):  
Dana Putri Harum ◽  
Aminudin Aminudin ◽  
Sofyan Arifianto
Keyword(s):  
Data Security ◽  
Exchange Process ◽  
Computation Time ◽  
Lookup Table ◽  
Advanced Encryption Standard ◽  
Memory Usage ◽  
Constant Matrix ◽  
Avalanche Effect ◽  
Encryption And Decryption ◽  
Environment Performance

AbstrakAlgoritma kriptografi merupakan salah satu unsur penting dalam pengamanan data. Berbagai improvisasi pengembangan algoritma telah dilakukan untuk mengoptimalisasikan kemanan proses pertukaran dalam suata jaringan data. Efisiensi performa menjadi salah satu pertimbangan penggunaan algoritma tertentu. AES memiliki keamanan super yang hingga saat ini keamanannya hanya dapat ditembus dengan waktu sekitar  tahun dan semilyar processor. Kompleksitas keamanan AES sebanding dengan penggunaan penggunaan memori serta waktu yang dibutuhkan untuk memproses enkripsi dan dekripsi data begitu besar. Penelitian ini melakukan modifikasi lookup table sbox dan constant matrix pada mixcolumns. Improvisasi tersebut dilakukan dengan harapan mampu meningkatkan performa agar menjadi lebih efisien. Pengujian yang dilakukan terhadap penggunaan memori, waktu komputasi serta persentase avalanche effect masing – masing memiliki selisih sebesar 24mb, 18.9 detik, serta peningkatan avalanche effect sebesar 0.92%. berdasarkan data tersebut dapat diketahui bahwa performa pada improvisasi AES ini telah mampu meningkatakan performa algoritma dengan mereduksi waktu dan memori serta meningkatkan persentase avalanche effect.Cryptographic algorithm is an important element in data security. Any improvised of algorithm development has been carried out to optimize the security of the exchange process in a data network environment. Performance efficiency is one of the considerations of using algorithms. AES has a super security nowaday and its security can only be broken about   years and a billion processors. The complexity of AES security is proportional with the memory usage and the time are needed to process encryption and decryption of data is huge. This study modified the sbox table and constant matrix in mixcolumns. That Improvement is expected of being able to improve the performance to become more efficient. Tests carried out on memory usage, computation time and the percentage of avalanche effect which have a difference of 24MB, 18.9 seconds, and an increase in the avalanche effect of 0.92%. based on the data, it can be known that the performance of the AES has been able to improve the performance of the algorithm by reducing time and memory also it is increasing the percentage of avalanche effect

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

2020 ◽  
Vol 5 (3) ◽  
pp. 153
Author(s):  
Intan Fitriani ◽  
Aryo Baskoro Utomo
Keyword(s):  
Data Security ◽  
Short Message Service ◽  
Advanced Encryption Standard ◽  
Short Message ◽  
Brute Force ◽  
Test Results ◽  
Avalanche Effect ◽  
Cryptographic Algorithms ◽  
Message Service

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%.

Implementasi Enkripsi dan Otentikasi Transmisi Data ZeroMQ Menggunakan Advanced Encryption Standard

2020 ◽  
Vol 4 (6) ◽  
Author(s):  
I Made Sukarsa ◽  
I Made Rama Pradana ◽  
Putu Wira Buana
Keyword(s):  
Direct Observation ◽  
Advanced Encryption Standard ◽  
Message Delivery ◽  
Normal Delivery ◽  
Delivery Performance ◽  
Data Message ◽  
Encryption And Authentication ◽  
Block Chaining

Communication via sockets is used to transmit information between applications or between processes over network or locally. ZeroMQ is a library for sending messages using sockets that are quite well known. Talking about sending data, message security is an important part that needs to be taken into account, especially when sending data over a network. ZeroMQ sends messages openly without securing the messages sent. This is evidenced by research which states that ZeroMQ does not have a security layer for sending messages over the network and direct observation of message packets using the wireshark application. Therefore, this study creates a method of securing and authenticating message delivery using AES (Advanced Encryption Standard) CBC (Cipher Block Chaining) mode combined with an authentication method. The AES CBC mode was chosen because it is faster than other methods and has strong encryption. This encryption and authentication are used so that the sender and recipient of the message are both valid senders and recipients so that no message changes during message delivery and messages can only be opened by the message recipient and the sender of the message. Tests are conducted to measure the effect of encryption and authentication on message delivery performance. Based on the tests conducted, there is an increase of 7% from normal delivery speed and the potential for messages is not up to 0.3% - 1.5%.

DATA SECURITY USING RC6 CIPHER ALGORITHM AS AN IMPLEMENTATION OF PRIVACY PRINCIPLE IN THE UU-ITE PERSPECTIVE AND ISLAMIC LAW

2020 ◽  
Author(s):  
Dedy Agung Prabowo ◽  
Ujang Juhardi ◽  
Bambang Agus Herlambang
Keyword(s):  
Information Technology ◽  
Information System ◽  
Computer Technology ◽  
Data Security ◽  
Block Cipher ◽  
Islamic Law ◽  
Important Thing ◽  
Is Security ◽  
Privacy Principle ◽  
System Data

Recently, Information technology develops rapidly. It is possible for us to get some informationquickly, properly and efficiently. The information technology also has many advantages fo r people. Theneed for information is increasing according to the need of its users. This proves that informationtechnology can make our job easier and it can help us to save our time particularly for the job thatrelated to information and data processin g. With the increasing use of computer technology today, italso brings up some problems. One of them is security and confidentiality problem which is animportant aspect in an information system. Data security is an important thing in maintaining theconf identiality of particular data that only can be known by those who have right. RC6 is a symmetrickey algorithm which encrypts 128 bit plaintext blocks to 128 bit ciphertext blocks. The encryptionprocess involves four operations which is the critical arit hmetic operation of this block cipher. As alegal state, Indonesia has issued a regulation in a form of laws governing information and electronictransaction or commonly referred to UU ITE. Besides, Islam is a religion that comprehensively givesthe guidan ce of life for people. Islam has provided guidance in the various fields ranging from social,politics, economics and various other fields.

High Speed FPGA Based 128-bit Advance Encryption Standard (AES)

2021 ◽  
Vol 11 ◽  
Author(s):  
Ibrahem M. T. Hamidi ◽  
Farah S. H. Al-aassi
Keyword(s):  
High Throughput ◽  
Field Programmable Gate Array ◽  
High Speed ◽  
Design Tool ◽  
Advanced Encryption Standard ◽  
Clock Frequency ◽  
Advance Encryption Standard ◽  
Field Programmable ◽  
Internal Component ◽  
Gate Array

Aim: Achieve high throughput 128 bits FPGA based Advanced Encryption Standard. Background: Field Programmable Gate Array (FPGA) provides an efficient platform for design AES cryptography system. It provides the capability to control over each bit using HDL programming language such as VHDL and Verilog which results an output speed in Gbps rang. Objective: Use Field Programmable Gate Array (FPGA) to design high throughput 128 bits FPGA based Advanced Encryption Standard. Method: Pipelining technique has used to achieve maximum possible speed. The level of pipelining includes round pipelining and internal component pipelining where number of registers inserted in particular places to increase the output speed. The proposed design uses combinatorial logic to implement the byte substitution. The s-box implemented using composed field arithmetic with 7 stages of pipelining to reduce the combinatorial logic level. The presented model has implemented using VHDL in Xilinix ISETM 14.4 design tool. Result: The achieved results were 18.55 Gbps at a clock frequency of 144.96 MHz and area of 1568 Slices in Spartan3 xc3s1000 hardware. Conclusion: The results show that the proposed design reaches a high throughput with acceptable area usage compare with other designs in the literature.

scholarly journals Legal aspects of land administration service with land computerization information systems in Sidoarjo

2020 ◽  
Vol 9 (8) ◽  
pp. e307983659
Author(s):  
Taufik Wibowo
Keyword(s):  
Information Technology ◽  
Information System ◽  
Information Systems ◽  
Qualitative Analysis ◽  
Data Security ◽  
Legal Aspects ◽  
Cultural Issues ◽  
Electronic Documents ◽  
Normative Approach ◽  
Land Administration

The aim of this analysis is referred to several problems which are concerning the Land Administration Service in National Land Agency and Law Aspect of Land Administration Service with the Computerization Information System in BPN Sidoarjo. This research applies the Juridical Normative approach especially in Land Law with the Descriptive and Analytic and qualitative analysis. The result showed that Land Data Management used the information technology which is something that absolutely must be done is related to the characteristics of the land data itself which are multidimensional in nature related to economic, political, defense and security and socio-cultural issues. It can be concluded that information and electronic Transaction, some doubts about the use of electronic land data have found a clarity, especially relating to the electronic documents that are used as a means of proving and electronic data security.

scholarly journals Cryptosystem for Secure Data Transmission using Advance Encryption Standard (AES) and Steganography

2019 ◽  
pp. 317-322 ◽  
Author(s):  
Musa. M. Yahaya ◽  
Aminat Ajibola
Keyword(s):  
Digital Media ◽  
Data Transmission ◽  
Data Security ◽  
Data Transfer ◽  
Business Owners ◽  
Advanced Encryption Standard ◽  
Least Significant Bit ◽  
Media Image ◽  
Key Players ◽  
Secure Data Transmission

Recently, the rate of data transfer over the internet globally has increased and this called for more data security as security of data is of great concern for individuals as well as business owners. Cryptography and steganography are two major key players for data security technique. Cryptography is use to perform encryption on the secrete message while steganography hides the secrete message in digital media, image in this regards. This paper employed these two techniques using Advanced Encryption Standard (AES) for the cryptography and Least Significant Bit (LSB) for the steganography. Combining the two algorithms ensured data integrity, data security, and flexibility. The changes in the secrete message carrier (Stego) is insignificant and is often not noticeable by the nicked eyes, thus this make the interception of the message often difficult by intruder.

scholarly journals Optimization of Advanced Encryption Standard (AES) Using Vivado High Level Synthesis (HLS)

10.29007/x3tx ◽  
2019 ◽  
Author(s):  
Luka Daoud ◽  
Fady Hussein ◽  
Nader Rafla
Keyword(s):  
High Level Synthesis ◽  
Advanced Encryption Standard ◽  
Data Confidentiality ◽  
Maximum Throughput ◽  
Loop Unrolling ◽  
Aes Algorithm ◽  
Hardware Implementations ◽  
High Level ◽  
Dedicated Hardware ◽  
Vivado Hls

Advanced Encryption Standard (AES) represents a fundamental building module of many network security protocols to ensure data confidentiality in various applications ranging from data servers to low-power hardware embedded systems. In order to optimize such hardware implementations, High-Level Synthesis (HLS) provides flexibility in designing and rapid optimization of dedicated hardware to meet the design constraints. In this paper, we present the implementation of AES encryption processor on FPGA using Xilinx Vivado HLS. The AES architecture was analyzed and designed by loop unrolling, and inner-round and outer-round pipelining techniques to achieve a maximum throughput of the AES algorithm up to 1290 Mbps (Mega bit per second) with very significant low resources of 3.24% slices of the FPGA, achieving 3 Mbps per slice area.

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