20.500.12556/DKUM-67154 Varen in anonimen spletni sporočilni sistem Secure and anonymous web-based messaging system V diplomskem delu smo implementirali varen in anonimen spletni sporočilni sistem, ki predstavlja aplikacijo, katere namen je zagotoviti anonimnost in varnost uporabnika pred potencialnimi sledilci in sistemskim administratorjem. Anonimnost smo zagotovili preko anonimnega omrežja TOR in dodatnega šifriranja podatkov, ki gredo preko strežnika skozi omrežje. Z uporabo šifriranja od konca do konca smo zagotovili dodaten nivo anonimnosti in varnosti, saj se podatki, ki gredo v omrežje, šifrirajo, preden vstopijo vanj. V postopku izmenjave ključev smo uporabili princip Diffie-Hellman algoritma, s čimer je možna zagotovitev uporabe šifriranja od konca do konca. In this thesis we have implemented a secure and anonymous web-based messaging system. It represents an application which ensures users anonymity from third-party attackers and administrators as well as security. We implemented anonymity through an anonymous browser network called TOR and an encryption process that encrypts data. With the use of End to End encryption we made sure that the data is encrypted before it leaves the browser on the client side. We established a concept of Diffie-Hellmans key exchange for additional security. Šifriranje Diffie-Hellman protokol AES algoritem End to End šifriranje PHP varen anonimen pogovorni sistem Encryption Diffie-Hellman protocol AES algorithm End to End encryption PHP secure anonymous messaging system true true false M. Slatinek Slovenski jezik Angleški jezik Diplomsko delo/naloga 2017-08-04 02:00:23 2017-08-28 14:45:28 2022-08-01 13:36:49 2019-07-11 16:10:48 2017 0 [Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 004.777:681.188(043.2) 20878358 URN:SI:UM:DK:YNFHMX3R UN_Slatinek_Mark_2017.pdf UN_Slatinek_Mark_2017.pdf 1 1770F3BAD5C4E645EE7141EA93EC21FE 329300226db4d0cc491db4ac2d7a15c3ebbc9f9ca63601167b70e56509d16a9d 79fdb325-7c0e-11eb-bb7a-00155d0001ca 20.500.12556/dkum/dd3af343-ae0b-4307-8591-f58ce36c324f https://dk.um.si/Dokument.php?lang=slv&id=114826 Fakulteta za elektrotehniko, računalništvo in informatiko 0 0 0