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Medical Image Encryption Using Modified Identity Based Encryption Purnamasari, Dian Neipa; Sudarsono, Amang; Kristalina, Prima
EMITTER International Journal of Engineering Technology Vol 7 No 2 (2019)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24003/emitter.v7i2.405

Abstract

The development of technology and communication also affects the level of security needed for digital image transmission. It is known that digital images now have important meanings in both communication and video conference. In this paper, we propose a security method for medical encryption in the form of images. The proposed method is implemented in the modified Identity-Based Encryption scheme. The encryption algorithm used is Elliptic Curve Cryptography (ECC) to generate key pairs and the Advanced Encryption Standard (AES) to generate symmetric keys and encrypt process. This method has been tested based on computation time, histogram analysis and statistical analysis. The results of the test were obtained that the proposed method was resistant to multiple attacks despite having slower computing time. The proposed compute time error percentage is 1.69% for key generator stages and 0.07% for total compute time at the encrypt-decrypt stage.
Secure Data Travelling User using Hybrid Cryptosystem with User Privacy Protection Anindya Dwi Putri Islamidina; Amang Sudarsono; Titon Dutono
EMITTER International Journal of Engineering Technology Vol 8 No 1 (2020)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24003/emitter.v8i1.486

Abstract

Nowadays traveling is the activity that everyone likes the most, but sometimes there is one traveling member who is lost and confused looking for the location of the other members. When traveling, they must bring a smartphone because of its small size and easy to carry anywhere. For this reason, an Android-based smartphone application that is able to send GPS data to all travelling members is proposed. In order to secure data transmission, cryptography and group signature to ensure that only traveling members could find out the location are applied. We use hybrid cryptography, which is a combination of symmetric cryptography using AES and asymmetric cryptography using IB-mRSA. We also add group signature as verification that members are in the same traveling group. The test result showed that the proposed method is safer than the comparison method because the symmetric key is encrypted before the key is distributed, so the attacker can not know the key. The total processing time needed to send data until member get data is 2.01 s.
Higher Rate Secret Key Formation (HRKF) based on Physical Layer for Securing Vehicle-to-Vehicle Communication Dewi, Inka Trisna; Sudarsono, Amang; Kristalina, Prima; Yuliana, Mike
EMITTER International Journal of Engineering Technology Vol 8 No 1 (2020)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24003/emitter.v8i1.493

Abstract

One effort to secure vehicle-to-vehicle (V2V) communication is to use a symmetrical cryptographic scheme that requires the distribution of shared secret keys. To reduce attacks on key distribution, physical layer-based key formation schemes that utilize the characteristics of wireless channels have been implemented. However, existing schemes still produce a low bit formation rate (BFR) even though they can reach a low bit error rate (BER). Note that V2V communication requires a scheme with high BFR in order to fulfill its main goal of improving road safety. In this research, we propose a higher rate secret key formation (HRKF) scheme using received signal strength (RSS) as a source of random information. The focus of this research is to produce keys with high BFR without compromising BER. To reduce bit mismatch, we propose a polynomial regression method that can increase channel reciprocity. We also propose a fixed threshold quantization (FTQ) method to maintain the number of bits so that the BFR increases. The test results show that the HRKF scheme can increase BFR from 40% up to 100% compared to existing research schemes. To ensure the key cannot be guessed by the attacker, the HRKF scheme succeeds in producing a key that meets the randomness of the NIST test.
SDN-Based Network Intrusion Detection as DDoS defense system for Virtualization Environment Usman, Saifudin; Winarno, Idris; Sudarsono, Amang
EMITTER International Journal of Engineering Technology Vol 9 No 2 (2021)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24003/emitter.v9i2.616

Abstract

Nowadays, DDoS attacks are often aimed at cloud computing environments, as more people use virtualization servers. With so many Nodes and distributed services, it will be challenging to rely solely on conventional networks to control and monitor intrusions. We design and deploy DDoS attack defense systems in virtualization environments based on Software-defined Networking (SDN) by combining signature-based Network Intrusion Detection Systems (NIDS) and sampled flow (sFlow). These techniques are practically tested and evaluated on the Proxmox production Virtualization Environment testbed, adding High Availability capabilities to the Controller. The evaluation results show that it promptly detects several types of DDoS attacks and mitigates their negative impact on network performance. Moreover, it also shows good results on Quality of Service (QoS) parameters such as average packet loss about 0 %, average latency about 0.8 ms, and average bitrate about 860 Mbit/s.
Implementation of Secret Key Generation on Mobile Crowdsensing Application to Secure Tracking Location of Motorcyclists Dewi, Ni Made Lintang Asvini; Sudarsono, Amang; Yuliana, Mike
The Indonesian Journal of Computer Science Vol. 12 No. 4 (2023): The Indonesian Journal of Computer Science
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v12i4.3259

Abstract

Mobile crowdsensing is a method for collecting many data from sensors on smartphone. In this research, mobile crowdsensing application will be developed to display location of motorcyclits who connected in an Ad-Hoc network along with a security system using the Secret Key Generation (SKG) scheme to generate a secret key that will be used to encrypt and decrypt the data. From the results it can be concluded that the highest measurement correlation is 0.0398 and the lowest is 0.0018 but after randomness extraction proccess, the highest correlation is 0.996 and the lowest is 0.978. After encryption, information of Alice and Bob is stored as random character in database and decrypted as plaintext as shown as in application. In the attacking result, the data after encrypted just shown random character in traffic monitor. When the eavesdroppers manipulate its IP address like Alice's, they can’t connect to Bob.
Penentuan Keabsahan Dokumen KHS Dengan Menggunakan QR Code dan Digital Signature di Politeknik Negeri Manado Lordan Kimbal, Heaven; Sudarsono, Amang; Winarmo, Idris
The Indonesian Journal of Computer Science Vol. 13 No. 1 (2024): The Indonesian Journal of Computer Science
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v13i1.3603

Abstract

The change in the KHS process from manual to computerized has positive impacts such as integration with the judicial system, ease of inputting and printing data, and in recapitulating data. However, there are risks in this concept, namely loss and damage to data which can cause doubts about the validity of KHS data. Departing from this problem, an idea emerged to create a system that can prove the validity of KHS printed documents by applying QR Code technology and Digital Signature. With Digital Signature, information about the contents of KHS when it is first printed is encrypted first so that it cannot be changed by unauthorized parties, then the encryption results will be stored on the QR Code. So that the determination of document validity is done by comparing the contents of the current document with the contents of the document in the QR Code, if the information from both is the same then the printed document is declared an original document and vice versa. The verification process will use hash logic which is one of the functions of providing verification and authentication because it produces a unique value for each input. This result is expected to help Politeknik Negeri Manado to check the validity of KHS printed by students.
Co-Authors Abd. Rasyid Syamsuri Adam Surya Putra Adam Surya Putra Afifah Dwi Ramadhani agostinho marques ximenes Ahmad Zainudin Ali Ridho Barakbah Anang Budikarso Anang Budikarso, Anang Anang Siswanto Anang Siswanto, Anang Anindya Dwi Putri Islamidina Ari Wijayanti Ari Wijayanti Aries Pratiarso Aries Pratiarso Aries Pratiarso, Aries Astin, Novita Astin, Novita Bambang Sumantri Bayu Dwiyan Satria Bih Hwang Lee Bima Sena Bayu Dewantara Dadet Pramadihanto Darmawan, Zakha Maisat Eka Darmawan, Zakha Maisat Eka Dewi, Florista Dewi, Inka Trisna Dewi, Ni Made Lintang Asvini Dian Neipa Purnamasari Donny Farhan Eko Prayitno Farel Juliansyah Farhan, Donny Febby Ronaldo Fitri, Novi Aryani Florista Dewi Gulo, Melki Mario Gunawan, M. Wisnu Hadi, Mochammad Zen Samsono Haniah Mahmudah Hari Wahyuningrat S. Hary Oktavianto Haryadi Amran Hasan Basri Hasan Basri Hendy Briantoro Heru Iswanto, Heru Hidayah, Nuril Hudhajanto, Rizky Pratama Hudhajanto, Rizky Pratama I Gede Puja Astawa I Gede Puja Astawa I Gede Puja Aswara Ida Anisah Idris Winarno Indah Yulia Prafitaning Tiyas, Indah Yulia Prafitaning Ismed Jauhar, Ismed Juliansyah, Farel Kevin Prima Pambudi, Kevin Prima Lordan Kimbal, Heaven Louis Nashih Uluwan Arif M Udin Harun Al Rasyid, M Udin Harun M. Cahyo Kriswantoro Mahardhika, Yesta Medya Mahmudah, Haniah Mala Nurilmala Mike Yuliana Mochammad Zen Samsono Hadi Mohamad Ridwan Muh. Subhan Muhammad Taufiq Sumadi Nanang Syahroni Ni Made Lintang Asvini Dewi Nihayatus Sa'adah Ningsih, Norma Nisa, Choirun Choirun Nisa Nur Nur Adi Siswandari Nurul Fahmi Nurul Fahmi Priambodo, Naufal Ammar Prima Kristalina Putra, Adam Surya Qoirul Setiawan, Qoirul R Rizki Rachmadi Rafina Destiarti Ainul Rahardita Widyatra Ramadhani, Afifah Dwi Reni Soelistijorini Renovita Edelani Rini Satiti Rokhmat Albasyih Sa'adah, Nihayatus Samsul Huda Samsul Huda Santoso, Tribudi Saputro, Anton Cahyo Satiti, Rini Sa’adah, Nihayatus Soelistijorini, Reni Sritrusta Sukaridhoto Syahroni, Nanang Taufiqurrahman, Muh. Alfan Taufiqurrahman, Muh. Alfan Titon Dutono Tri Budi Santoso Tri Budi Santoso Tri Harsono Tri Susanti TRI SUSANTI Tribudi Santoso Vivien Arief Wardhany Wahjoe Tjatur Sesulihatien Wahyuningrat S., Hari Winarmo, Idris Ximenes, Agostinho Marques Yoedy Moegiharto, Yoedy Yoga Yuniadi Yudha, R. Gaguk Pratama Yudha, R. Gaguk Pratama Yuliana, Mike