A hardware architecture of stateless open digest spam fingerprinting unit

Spam has become one of the main problems for email users and servers. Approximately around 75 % of all sent emails is spam. Currently spam detection is being done at email servers on application layer which need to store all TCP packets of an email and then use spam detection methods after reassembl...

Full description

Saved in:

Bibliographic Details
Main Author:	Monemi, Alireza
Format:	Thesis
Published:	2010
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-utm-ep.26770
record_format	uketd_dc
spelling	my-utm-ep.267702017-08-23T02:07:05Z A hardware architecture of stateless open digest spam fingerprinting unit 2010 Monemi, Alireza TK Electrical engineering. Electronics Nuclear engineering Spam has become one of the main problems for email users and servers. Approximately around 75 % of all sent emails is spam. Currently spam detection is being done at email servers on application layer which need to store all TCP packets of an email and then use spam detection methods after reassembling. The spam detection technique on the application layer is slow and cannot cope with the current speed of the internet. If email classes could be estimated before being accepted by receiving MTAs for queuing, better spam handling strategies could be utilized. The aim of this project is divided in two parts. First to develop an inline Internet Protocol wrapper that is capable for processing packets for stateless content classification. The second aim is to the development of a hardware spam detection unit based on Nilsimsa fingerprinting algorithm. The IP wrapper is implemented successfully on hardware. This unit increases the Ethernet speed from 25 Mbit/s to 85 Mbit/s and provides a simple interface to transfer and receive packets from Ethernet port. IP Wrapper also provides extra time to process received packets for the microcontroller. In this project we present hardware architecture of a modified form of Nilsimsa algorithm to be implemented on hardware for higher fingerprinting throughput while having the same accuracy as the original algorithm. The improvement is noticeable in the term of processing speed and hardware allocated resources, and the accuracy tested on false positive spam detection. The implemented algorithm works with the operation frequency up to 123 MHz and has the throughput of 1 byte per 2 clock cycles (4 bit per clock cycle). Our system also needs extra 512 clock cycles after receiving whole of the message to complete the computation of Nilsimsa fingerprint. 2010 Thesis http://eprints.utm.my/id/eprint/26770/ http://libraryopac.utm.my/client/en_AU/main/search/results?qu=A+hardware+architecture+of+stateless+open+digest+spam+fingerprinting+unit&te= masters Universiti Teknologi Malaysia, Faculty of Electrical Engineering Faculty of Electrical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
topic	TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering Monemi, Alireza A hardware architecture of stateless open digest spam fingerprinting unit
description	Spam has become one of the main problems for email users and servers. Approximately around 75 % of all sent emails is spam. Currently spam detection is being done at email servers on application layer which need to store all TCP packets of an email and then use spam detection methods after reassembling. The spam detection technique on the application layer is slow and cannot cope with the current speed of the internet. If email classes could be estimated before being accepted by receiving MTAs for queuing, better spam handling strategies could be utilized. The aim of this project is divided in two parts. First to develop an inline Internet Protocol wrapper that is capable for processing packets for stateless content classification. The second aim is to the development of a hardware spam detection unit based on Nilsimsa fingerprinting algorithm. The IP wrapper is implemented successfully on hardware. This unit increases the Ethernet speed from 25 Mbit/s to 85 Mbit/s and provides a simple interface to transfer and receive packets from Ethernet port. IP Wrapper also provides extra time to process received packets for the microcontroller. In this project we present hardware architecture of a modified form of Nilsimsa algorithm to be implemented on hardware for higher fingerprinting throughput while having the same accuracy as the original algorithm. The improvement is noticeable in the term of processing speed and hardware allocated resources, and the accuracy tested on false positive spam detection. The implemented algorithm works with the operation frequency up to 123 MHz and has the throughput of 1 byte per 2 clock cycles (4 bit per clock cycle). Our system also needs extra 512 clock cycles after receiving whole of the message to complete the computation of Nilsimsa fingerprint.
format	Thesis
qualification_level	Master's degree
author	Monemi, Alireza
author_facet	Monemi, Alireza
author_sort	Monemi, Alireza
title	A hardware architecture of stateless open digest spam fingerprinting unit
title_short	A hardware architecture of stateless open digest spam fingerprinting unit
title_full	A hardware architecture of stateless open digest spam fingerprinting unit
title_fullStr	A hardware architecture of stateless open digest spam fingerprinting unit
title_full_unstemmed	A hardware architecture of stateless open digest spam fingerprinting unit
title_sort	hardware architecture of stateless open digest spam fingerprinting unit
granting_institution	Universiti Teknologi Malaysia, Faculty of Electrical Engineering
granting_department	Faculty of Electrical Engineering
publishDate	2010
_version_	1747815506656624640

A hardware architecture of stateless open digest spam fingerprinting unit

Similar Items