User interface design for certificate operations with Network Security Services

Bc. Lenka Horáková

Master's thesis

Abstract:

Teoretická časť diplomovej práce popisuje základy správy kľúčov a kryptografických knižníc NSS (Network Security Services), GnuTLS a OpenSSL. Praktická časť popisuje tvorbu a priebeh experimentu použitia NSS, GnuTLS a OpenSSL systémov pre správu kryptografických kľúčov a certifikátov verejných kryptografických kľúčov. V spolupráci s vedúcim práce a konzultantom sme pripravili jednotlivé úlohy pre študentov predmetu PA193 Secure Coding Principles and Practices na FI MU. Na základe výsledkov testovania bola porovnaná použiteľnosť týchto systémov a boli navrhnuté konkrétne zlepšenia. Taktiež boli navrhnuté konkrétne kroky pre experiment na konferencii DevConf 2017 v Brne. Boli navrhnuté wireframy grafického rozhrania pre NSS pre vymedzené kryptografické operácie s certifikátom.

Abstract:

The theoretical part of the Master thesis describes basic information about the key management and cryptographic libraries NSS (Network Security Services), GnuTLS, and OpenSSL. The practical part describes the design and the process of the experiment for the use of the NSS, GnuTLS and OpenSSL systems for management of cryptographic keys and public key certificates. In collaboration with the tutor and the consultant, we prepared individual tasks for the students of PA193 Secure Coding Principles and Practices of FI MU. Based on the results of this experiment the usability of the various systems was compared and specific improvements were suggested. The specific steps in performing the experiment for the DevConf 2017 conference in Brno were suggested as well. The wireframes of the graphical user interface of NSS for specialized cryptographic certificate operations were designed.

Keywords

key management, public key certificate, cryptographic library, NSS, GnuTLS, OpenSSL, certtool, certutil, usability, usability testing, unmoderated UX study, wireframe, graphical user interface, DevConf

Language used: English

Date on which the thesis was submitted / produced: 4. 1. 2017

Thesis defence

• Date of defence: 8. 2. 2017
• Supervisor: prof. RNDr. Václav Matyáš, M.Sc.
• Reader: RNDr. Vlasta Šťavová

Masaryk University

Faculty of Informatics

Master programme / field:
Applied Informatics / Service Science, Management and Engineering