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Upgrading the SSL protocol to TLS in the Roxen WebServer
Linköping University, Department of Electrical Engineering.
2002 (English)Independent thesis Basic level (professional degree)Student thesis
Abstract [en]

The company Roxen Internet Software have an implementation of the secure network protocol SSL (Secure Sockets Layer) which is used in their web server product. This report describes the upgrading of that implementation to the TLS1.0 (Transport Layer Security) standard. It also describes a performance investigation of the SSL/TLS support in the Roxen WebServer and compares it with other common web servers. The initial setup time for the secure SSL/TLS connection was found to be very long in the Roxen Webserver compared to its competitors. The main bottleneck, in the Roxen implementation, was found to be the modular exponentiation that is the core of the RSA decryption algorithm. One suggested improvement is to upgrade the bignumber numerical package used in Roxen WebServer, GMP (The GNU Multiple Precision arithmetic library) from version 2.0 to version 4.0. The newer version of the bignumber package have been measured to have considerably better performance in its modular exponentation operation.

Place, publisher, year, edition, pages
Institutionen för systemteknik , 2002. , 47 p.
LiTH-ISY-Ex, 3308
Keyword [en]
Informationsteknik, SSL, TLS, RSA, Roxen
Keyword [sv]
National Category
Computer and Information Science
URN: urn:nbn:se:liu:diva-1475OAI: diva2:18799
Available from: 2002-12-20 Created: 2002-12-20

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