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    Volume : 6 Issue : 6 June 2009 Price : Rs. 3.00

    Chairmans MessageDr. S. Salivahanan

    Mobile: 94441 89433

    From The Editor s DeskH.R. Mohan

    Editorial TeamMr. H.R. Mohan, Dr. S. Salivahanan, Dr. M. Ponnavaikko,

    Dr. P. Suresh Chander Pal, Mr. T.S. Rangarajan, Mrs. M. Ramalatha

    Dear Friends,

    I am happy to mention that Mrs.Ramalatha Marimuthu, IEEE Madras SectionWIE Chair has been felicitated for receivingIEEE MGM Achievement Award. AlsoLifetime Achievement Award was presented

    to Dr. Suresh Chander Pal, Dr. G.V. Rao and Er. K.V. Rupchand andOutstanding Mentor Award were presented to Dr. T. Thiagarajan.These awards were presented by Dr. S. Salivahanan, Chairman, IEEEMadras Section during a function recently held. Our hearty congratulationsto all the recipients.

    IEEE Computer Society, Madras Chapter and Computer Societyof India, Chennai Chapter organized a technical talk on EnterpriseMobility. Mr. Mahesh N Iyer, Chief Operating Officer, iPathTechnologies Pvt. Ltd., Chennai delivered the talk on Saturday the 23rdMay 2009, and a presentation cum demonstration programme on DanceTherapy by Mr. Muthiah Ramanathan, Director Training of MindDynamics Center and Ms. Gitu Pappu @ Gayathri, Dancer and Yogapractitioner on Saturday the 6th June 2009. Further, Computer Societyhas also lined up technical meetings on Electronic Payment Systemson 13th Jun, eLearning on 20th Jun and MPower ERP Solutions on27th Jun along with a workshop on Technologies of the Future on 25thJun. A humanitarian project for children with special needs - NovelScreening System was launched in association with Lions club and WIEin a function held on June 04, 2009.

    A Faculty Development Program on Challenges in InformationSecurity was conducted during June 19 20, 2009 at Karunya University,Coimbatore. Faculty members from different colleges attended. AnotherFaculty Development Program on Time Frequency Signal Analysiswill be conducted during July 07- 13, 2009 at IIT Madras. The facultymembers of technical institutions are welcome to attend this programme.

    IEEE Communications Society and IEEE Computer Society havejoined SSN College of Engineering , Chennai in organizing an InternationalConference on Wireless Communication and Sensor Computing ICWSCS2010 during January 02 04, 2010 in association with Indian NuclearSociety, IGCAR, Kalpakkam. This conference is listed in IEEE ConferenceCalendar papers will be published in the proceedings of the conferenceand IEEE Explore, provided at least one of the authors registers for theconference. The extended version of the selected papers will be publishedin the International Journal of Distributed Sensor Networks. For furtherdetails, please visit the website The IEEEmembers can utilize this opportunity to present their research findings.

    contd..... page 7

    Dear Friends,

    In the May issue of LINK, we had reportedon the entries from India topping in numbers in theIEEE Presidents Change the World Competition. Asexpected, in the voting for the Peoples Choice winner(selection based on online voting) competition, it isgratifying to see that three entries from India areleading. The project NIDAAN An E-Healthcare

    Solution for the Under-Privileged and the Needy by Sumit Pandey,Gandhinagar tops with 528 votes followed by the project ISHHS -Information System on Human and Health Services by SampathkumarVeeraraghavan, who is associated with the GOLD section of MadrasSection past Chairman of Madras is in the second position with 428votes. The project AGROBOT - an autonomous robot which runs onsolar energy and deals with the application of robots in agriculture is atthe cultivation stage by Nagendran Rajendran, Udumalpet, and anotherMadras Section member is placed third with 124 votes. The rest of theprojects have secured fewer than 20 votes. All competition winners willbe announced to the public when this issue reaches you.

    As usual, Kongu Engineering College has reported about theiractivities. This time three events Student Professional AwarenessConference, INTUIT-09 Competition and a workshop on Virtualisationheld as part of valedictory programme for the year 2008-09. A report thenational conf. on Recent Advances in e-Communication and i-Technologies held at Anand Inst. of Higher technology and theinauguration of the Student Branch at Kalaignar Karunanidhi Inst. ofTechnology appear in this issue. The impact of the semester exams andvacation is quite evident from the less no. of events reported.

    The detailed reports of the five events three talks dealing withDigital Forensics, Enterprise Mobility and Beyond Google:Electronic Resources for Effective Research one conference on OpensSource Software and one workshop on Information Security organizedby the IEEE Computer Society Madras Chapter appear along with areport on the World Telecommunication & Information Society Daycelebrated on May 17th and a report on the WIE Committee Meetingheld at Florida appear in this issue of LINK.

    LINK congratulates Mr. V. Sathya Narayana of SVCE, and Ms.T.A. Sai Sindhuja of Easwari Engg. College, the winners of Info Contest0904 who will receive a prize of Rs. 500/= each sponsored by SRA Systems.

    Readers attention is drawn to the announcements relating to theFDP at IIT Madras, Conf. on Intelligent Agent & Multi-Agent Systems,WIE Congress, DLP by PES at IIT, Conf. on Library Networking, Conf.on Wireless Communication and Sensor networking and other threeinternational conf. to be held in Dec 2009.


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    IEEE-MAS Link Volume : 6 Issue : 6 June 2009

    Presentation on Digital Forensics

    A presentation on the topic DigitalForensics by Mr. Sriram Raghavan,Doctoral Researcher, Queensland University ofTechnology, Brisbane, Australia was organizedjointly by the IEEE Madras Section, IEEEComputer Society Madras Chapter, IEEE MadrasWomen in Engineering Affinity Group andComputer Society of India, Chennai Chapteron Saturday, 16th May 2009. Dr. S. Salivahanan,Chairman, IEEE Madras Section welcomed thegathering and introduced the speaker.

    Mr. Sriram Raghavan from QueenslandUniversity of Technology, Brisbane gave anoverview of the new and emerging field ofDigital forensics. Forensics, as we all know dealswith crime scene reconstruction: digital forensicsis its digital twin. Formally defined by the DigitalForensic Research Workshop (DFRWS)Technical Committee in 2001 as the applicationof scientifically proven methods and techniquesin the identification, collection and preservation,verification, analysis, interpretation,documentation and presentation of digitallyretained or stored artifacts for facilitating or

    furthering the reconstruction of events found tobe criminal or help anticipate unauthorized actionsshown to be disruptive. Digital forensics is definedas a multi-stage process which begins with theidentification of possible evidence sources untilthe time where it may be presented in a court of law.

    Some recent challenges in the field havebeen in the acquisition of digital evidence fromdifferent sources, such as, hard disks, volatilememory, USB drives, PDAs, mobile phones andDVRs etc. It is noted that each type of digitalartifact has varied lifetimes and must beappropriately addressed by an investigatorbefore the acquisition process. For example,while hard disks would only be written intoonce every few minutes, the memory and cacheare accessed a few thousand times within thesame interval. Hence, an investigator must beaware of implications when one decides to gofor offline or online acquisition of evidence.

    Mr. Sriram also discussed some of thechallenges that arise out of such decisions andopined that such trade-offs must be handledbased on situation needs by an investigator. Oncea source is acquired it should be preserved forintegrity and HASH signatures like MD5 andSHA1 are used for this purpose. Once signed,this signature must be verified every time theevidence source is accessed by an investigator.Each investigation requires the maintenance ofa Chain of Custody form which tracks thelife of an evidence source during an investigation.

    It is a known fact that logs are generated

    during any digital transaction between twodevices. It was pointed out that such logs couldland up altering the content during an acquisition.Since integrity is critical to any investigation,the use of write blockers which intercept BIOSinterrupts generated during hard disk writes.

    In todays world, Mr. Sriram notes the rapidadvancement in digital technologies has givenbirth to several different digital devices, eachwith their own formats and file systems. Healso notes that the chance of coming across suchdevices has tremendously increased in the recentyears. He calls for the need to integrate suchsources under one roof and analyse data frommultiple disparate technologies in a uniform manner.

    Mr. Sriram and his research group at theInformation Security Institute at QUT, Brisbanehave come up with the Forensic IntegrationArchitecture (FIA) to address this challenge.The architecture adopts the scalable SOA modelto integrate different evidence sources both atsyntactic and semantic levels. Having establishedthis architecture, his team is now workingtowards identifying links across differentevidence sources at the two levels and integrateinformation at a contextual level with what hecalls Digital Evidence Composition (DEC).

    The presentation, attended by about 80participants generated a lot of interaction andexperience sharing from the participants. Afterthe presentation, Mr. H.R. Mohan, Chairman,IEEE Computer Society presented a mementoto the speaker Mr. Sriram and Mr. S. Ramasamy,Secretary, CSI Chennai


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