84 research outputs found
STRATEGI PEMASARAN PT. PRIMAGRAPHIA DIGITAL: ANALISIS KINERJA DI LINGKUNGAN PLATFORM MARKETPLACE
No full textPenelitian ini bertujuan untuk menganalisis faktor-faktor yang mempengaruhi fluktuasi penjualan PT. Primagraphia Digital di marketplace selama tahun 2022. Melalui pendekatan deskriptif kualitatif, data diperoleh dari wawancara dengan lima informan internal perusahaan. Hasil penelitian menunjukkan bahwa fluktuasi penjualan dipengaruhi oleh berbagai faktor, termasuk perubahan selera konsumen, kondisi pasar, dan kualitas layanan. Faktor-faktor musiman seperti bulan Ramadhan dan Idul Fitri juga memiliki dampak signifikan. Penelitian ini menyimpulkan bahwa perusahaan perlu terus melakukan evaluasi dan penyesuaian strategi pemasaran untuk mengatasi fluktuasi penjualan dan mempertahankan pertumbuhan yang stabil dalam jangka panjang
CRYPTOGRAPHIC PROTOCOL SECURITY IN NATIONAL ENCRYPTION APPLICATIONS
Get PDFIn the era of digital transformation, information exchange, especially confidential and strategic information has become the most vital aspect for almost all organizations. Various bad precedents regarding classified and strategic information leaks in Indonesia have become a slap in the face that must be acknowledge and answered with effective solutions. In 2020, XYZ Agency developed a file encryption application (ABC Application) to address the challenge of securing confidential information, especially those transmitted on electronic channels. Until 2022, the ABC Application has been implemented in a limited scope and its implementation is planned to be expanded nationally. After 2 years of operation, the XYZ Agency has conducted a study on the security of the algorithm used in ABC Application, but unfortunately has not conducted an in-depth study regarding the security of the protocol suite used in the Application. In this research, a security analysis of ABC application protocol suites, namely the registration protocol, user verification, key generation, and key request for the encryption-decryption process protocol was conducted through formal verification approach using the Scyther Tool. The analysis focuses on aspects of guaranteeing confidentiality of information and authentication with four criteria, namely secrecy, aliveness, synchronization, and agreement. The experimental results showed that these protocols meet the security criteria for the transmitted confidential information but have general weaknesses in the authentication aspect, especially for synchronization and agreement criteria. Based on these weaknesses, technical recommendations are proposed that are able to overcome the identified weaknesses
DEVELOPMENT OF PROTECTION PROFILE FOR SECOND-LEVEL E-KTP CARD READER BASED ON ISO/IEC 15408:2022 AND ISO/IEC TS 19608:2018
Get PDFThe second level e-KTP reader device is an electronic data reader device stored in the e-KTP chip by applying a verification device in the form of a fingerprint/face scan. The data stored in the e-KTP chip is personal data that is general and specific, as stated in Law Number 27 of 2022. Therefore, users of e-KTP readers as controllers and processors of personal data are obliged to prevent unauthorised access lawfully by using a security system reliably, safely and responsibly. Permendagri Number 76 of 2020 requires compliance with product standards by involving relevant K/L agencies in the security sector as a form of supervision. Based on BSSN Regulation 15 of 2019, implementing the evaluation process in Indonesia's common criteria scheme requires a Protection Profile document to support the evaluation of IT device security. However, there is no Protection Profile document for e-KTP reader devices that have been certified so that it can be used as a reference in developing IT devices to support the evaluation of IT device security. Therefore, in this study, developing Protection Profiles for e-KTP readers based on ISO/IEC 15408 and ISO/IEC TS 19608: 2018 was carried out to prepare functional security requirements and security guarantees by considering the protection of personal data. While the developing method used is based on ISO/IEC TR 15446:2017. The results of this study are preparing a Protection Profile document consisting of 25 functional security requirements to fulfil 8 device security objectives with a level of security assurance at Evaluation Assurance Level (EAL) 4. Then the design results are tested based on the Assurance Protection Profile Evaluation class (APE) ISO/IEC 18045:2022 and declared to meet the criteria based on the ISO/IEC 15408 series
MODIFICATION ADVANCED ENCRYPTION STANDARD (AES) ALGORITHM WITH PERFECT STRICT AVALANCHE CRITERION S-BOX
Get PDFThe Advanced Encryption Standard or better known as the AES Algorithm is a standard algorithm and has been widely used as an application of cryptography. Currently, a lot of research is developing about attacks on the AES algorithm. Therefore, there have been many studies related to modifications to the AES algorithm with the aim of increasing the security of the algorithm and to produce alternatives to encryption algorithms that can be used to secure data. In this study, modifications were made to the AES algorithm by replacing the S-box using the perfect SAC S-box in the SubBytes process. The Perfect SAC S-box has an exact SAC average value of 0.5. The S-box that will be used must have good security strength, therefore the perfect SAC S-box is tested, namely the AC, SAC, BIC, XOR Table Distribution, and LAT Distribution tests. Based on the results of the study, it was found that the perfect SAC S-box had almost the same S-box test results as the AES S-box. Furthermore, after the perfect SAC S-box is applied to the AES algorithm, it is analyzed how the effect of these modifications on the AES algorithm uses randomness testing for the block cipher algorithm, namely the strict avalanche criterion (SAC) test. The results of the AES test with perfect SAC S-box can meet the SAC test since the second round with better results than the original AES algorithm with SAC values of 0.5003 and 0.5019
Observability analysis of power distribution systems with distributed energy resources using correlational measurements
No full textThesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2019Cataloged from PDF version of thesis.Includes bibliographical references (pages 57-59).In this thesis, an observability analysis framework is proposed for power distribution systems. The framework analyzes the sufficiency of the available measurements for monitoring the system. In the areas of the network where sufficient sensors have been deployed, the complex voltage at the nodes may be estimated. The framework also provides a metric that quantifies the accuracy of these voltage estimates. Due to the cost of sensors and the size of distribution systems, it is frequently the case that the available measurements are insufficient for complete observability of the system. In this thesis, the author proposes the use of Correlational Measurements (CMs) for improving distribution system observability by leveraging correlation between loads and between Distributed Energy Resources (DERs). Load correlation due to class-residential, commercial, industrial, etc.- is captured via correlational load measurements, the first type of CM. Injection correlation of DERs-such as wind turbines located in proximity-is captured via correlational DER measurements, the second type of CM. This thesis presents the CM formulation and derives modified node voltage and branch current based state estimators (NVSE and BCSE) accommodating CMs. Additionally, this thesis contains an on-line parameter estimation scheme for CMs that improves the accuracy of state estimates over time. The observability analysis framework with CMs is demonstrated through simulations on the IEEE 123 Node Distribution Test Feeder. It is shown that the introduction of CMs leads to improved observability of the system with only a 0.7% decrease in state estimation accuracy for NVSE and a 0.5% increase in state estimation accuracy for BCSE.by Yohan M. John.S.M.S.M. Massachusetts Institute of Technology, Department of Mechanical Engineerin
My ministry with primary children Central Presbyterian Church Atlanta, Georgia September 1970 - April 1972, 1973
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A COBIT-Based Critical Asset Evaluation of Electronic Certificate Management in Central, Urban, and Rural Government Agencies: Study and Analysis
No full textChaos properties of the Chaotic Permutation generated by Multi Circular Shrinking and Expanding Movement
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