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Global Secure Message Handling
KTH, Superseded Departments, Teleinformatics. (CCSlab)
KTH, Superseded Departments, Teleinformatics. (CCSlab)
1999 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The goal of this report is to devise a mechanism for sending messages in a non-secure environment, such as the Internet. The messages are supposed to pass a number of middlemen, who make routing decisions based on the content of some fields of the message. The system should provide security services for selective field confidentiality, authentication, and data integrity. The system should utilize established standards and protocols as much as possible and be able to process at least 100 messages per minute.

There are many proposed standards for sending secure messages over the Internet. S/MIME has been chosen because it provides the desired security mechanisms and has been a de facto standard.

There are many alternatives when composing an S/MIME message. To be able to understand how the choice affects throughput and latency, an S/MIME application has been implemented in Java. The application is used for performance measurements on two different communication models.

The measurements show that the relative difference in latency for the two implemented communication models is about 170%. This could be compared with the relative difference for weak as opposed to strong encryption, which is about 30%. The measurements also show that the goal of 100 processed messages per minute is reachable.

Place, publisher, year, edition, pages
1999. , 160 p.
National Category
Communication Systems
URN: urn:nbn:se:kth:diva-94953OAI: diva2:526424
Educational program
Master of Science in Engineering - Electrical Engineering
1999-10-04, Biblioteket, Teleinformatics, Isafjordsgatan 22, Kista, 16:00 (English)
Available from: 2012-06-20 Created: 2012-05-11 Last updated: 2013-09-09Bibliographically approved

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