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DoS Mitigation using Proof of Work – An example utilizing the UDP protocol.
KTH, School of Computer Science and Communication (CSC).
KTH, School of Computer Science and Communication (CSC).
2012 (English)Independent thesis Advanced level (professional degree), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

In this report, we review the types of proof of work systems that already exist and are used in different environments. The main work that we have done is an implementation of our own protocol on top of UDP in order to make a server more secure against DoS attacks. After studying the results shown by the tests we found that there are good chances for a proof of work protocol to mitigate DoS attacks. We also show that it can not give complete protection as there will always be an upper limit on how much data a computer can handle.

Abstract [sv]

I rapporten går vi igenom vilka typer av proof of work-system som redan idag finns och används i olika miljöer. Det stora arbetet vi själva utfört är en implementation av vårt eget protokoll ovanpå UDP i syfte till göra en server mer säker mot DoS-attacker. Efter att ha studerat de resultat som visats av testerna kom vi fram till att det finns goda chanser för ett proof of work protokoll att lindra DoS attacker mot servrar. Vi visar också att det inte går att få ett fullständigt skydd då det alltid kommer att finnas en övre gräns för hur mycket data som en dator kan hantera.

Place, publisher, year, edition, pages
Kandidatexjobb CSC, K12045
National Category
Computer Science
URN: urn:nbn:se:kth:diva-131050OAI: diva2:654496
Educational program
Master of Science in Engineering - Computer Science and Technology
Available from: 2013-10-07 Created: 2013-10-07

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