Hyperledger was set up with the aim of being an open-source platform targeted at accelerating industry-wide collaboration hosted by The Linux Foundation for developing robust and dependable blockchain and distributed ledger-based technological platform that may be applied across several industry sectors to improve the efficiency, performance, and transactions of different business operations. Various distributed ledger frameworks and libraries have been developed for this purpose. In this thesis, the Ursa cryptographic library, which is one of the libraries being developed to offer its users with dependable, secure, user friendly and pluggable cryptographic applications to its users, has been examined and the performances of both the anonymous identity creation process and the presented cryptographic algorithms are examined.


Design of a Customer's Type Based Algorithm for Partner Selection Problem of Virtual Enterprise
Virtual Enterprise (VE) is a temporary platform for individual enterprises to collaborate with each other, sharing their core competencies to fulfill a customer demand. In order to improve the customer satisfaction, the most successful VEs select their consortium's members based on customer's preferences. There is quite extensive literature in the field of partner selection in VE, each proposing a new approach to evaluate and select the most appropriate partners among pool of enterprises. However, none of t...
A Decision Support System for Optimal Selection of Enterprise Information Security Preventative Actions
Sonmez, Ferda Ozdemir; Günel Kılıç, Banu (2021-09-01)
Types and complexity of information security related vulnerabilities are growing rapidly and present numerous challenges to the enterprises. One of the key challenges is to identify the optimal set of precautions with limited budget. Despite the fact that majority of enterprises have a budget constraint for installing and maintaining the protection systems, the majority of the previous work only focus on prioritization of security targets and do not consider the preventative actions and budget constraints. ...
Automated integration of real-time and non-real-time defense systems
Dalkiran, Emre; Onel, Tolga; Oğuztüzün, Mehmet Halit S.; Demir, Kadir Alpaslan (2021-04-01)
Various application domains require the integration of distributed real-time or near-real-time systems with non-real-time systems. Smart cities, smart homes, ambient intelligent systems, or network-centric defense systems are among these application domains. Data Distribution Service (DDS) is a communi-cation mechanism based on Data-Centric Publish-Subscribe (DCPS) model. It is used for distributed systems with real-time operational constraints. Java Message Service (JMS) is a messaging standard for enterpr...
Design of a Multi Agent Based Virtual Enterprise Framework for Sustainable Production
Sadigh, Bahram Lotfi; ÜNVER, HAKKI ÖZGÜR; Kilic, S. Engin (2011-07-08)
In this paper a Platform as a Service (PaaS) based multi agent virtual enterprise framework for sustainability is introduced which is designed in order to facilitate the collaboration between Small and Medium Sized Enterprises (SMEs) working in Aviation and Defense Cluster of OSTIM Organized Industrial Region in Ankara, Turkey. In order to enable SMEs to capture opportunities and design products collaboratively in a network, a Virtual Enterprise framework shall be developed. This framework also targets to i...
Utilisation of AM/FM systems in the operation of distribution networks
Güven, Ali Nezih; Celenk, Ertuk; Guven, Ayse S. (null; 1994-12-01)
Citation Formats
A. ŞİMŞEK, “IMPLEMENTATION ANALYSIS OF CRYPTOGRAPHY TOOLBOX IN HYPERLEDGER,” M.S. - Master of Science, Middle East Technical University, 2021.