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    This post was last updated on       October 6th, 2020

Dr. Krishnamurthy G.N

Designation :

Area of specialization :

Date of Joining BNMIT :

Nature of Association (Regular/Contractual/Adjunct) :

E-mail Id : 

No. of years of Experience :

Name of FacultyDr. Krishnamurthy G.N 




DepartmentInformation Science & Engineering
QualificationB.E, M.E, Ph.D.
Area of specialization
  • Cryptography: Block Ciphers design and performance analysis
  • Operating Systems
  • Computer Architecture
  • Logic Design
Date of Joining BNMIT11-January-2010
Nature of Association




No. of years of ExperienceTeaching:21years

Research: 14 years


DegreeInstitutionMonth & Year of Passing% of marks obtained
Ph.DVTU, India2009
M.TechVTU, India2000
B.E.VTU, India1990


SI. No.DesignationInstitutionDuration
1PrincipalBNMIT, Bangalore, India June 2015 – Till date
2Professor & HOD,

Dept. of ISE

BNMIT, Bangalore, IndiaJune 2010 – June 2015

(Deputed to VTU twice for 2 years and 2months)

3Professor, Dept. of CSE,BNMIT, Bangalore, IndiaJan 2010 – May 2010
4Professor, Dept. of CSE,Cambridge Institute of Technology, Bangalore, India(Sep 2009 – Jan 2010)
5Assistant professor, Dept. of ISEBapuji Institute of Engg. & Tech., Davangere, IndiaMarch 2006 – Sep2009
6Lecturer, Dept. of ISEBapuji Institute of Engg. & Tech., Davangere, IndiaApril 1997 – Feb 2006
7Lecturer, Dept. of ECE/CSEBapuji Institute of Engg. & Tech., Davangere, IndiaSep 1997 – Mar 2001
8Faculty NIIT, Davangere, IndiaNov 1996 – Aug 1997

Academic Positions and other Responsibilities (University Level):

  • Implemented complete automation process of examination activities covering all the 193 Engineering colleges coming under VTU by introducing Digital Evaluation, online question paper delivery, online application entry, online attendance entry, online IA marks entry, online resume entry, Online M.Tech Thesis evaluation etc., which has benefited all the students and staff of all the disciplines of UG, PG,D.
  • Administering the Pre-examination preparations like Setting, Printing and Supply of Question Papers for the University
  • Administering the smooth conduct of Engineering (both UG and PG) Examinations throughout the state, spread over 193 Engineering colleges and conduct of course work examinations for research scholars of Ph.D. / M.Sc. Engineering by research and evaluation of
  • Announcement of results throughout the Karnataka state Engineering institutions before the starting of next semester
  • Member Convener for the preparation of regulations in various examination
  • Revamping of Infrastructure facilities required for the Examination Section with a view to meet the requirement for next 10
  • Establishment of World Class Data Centre at the University – first of its kind in IndianUniversities.
  • Establishment of Disaster Recovery
  • Implementation of automation process of admission, monitoring and Evaluation of M.Sc.(Engg. by Research) / Ph.D. course
  • Implementation of automation process of M.Tech. thesis
  • Implementation of online Question paper delivery system has eliminated leakages of question papers as papers get printed at the examination centers half an hour before the commencement of examinations. Implementation of Digital Evaluation has eliminated possible totaling errors and has helped in achieving error free evaluation for UG, PG and Ph.D. answer scripts and hence speedy announcement of results. They are first of their kind in Karnataka Universities.

Was member for the following committees constituted to improve the examination process.

  • Committee to review the remuneration for the teachers involved in various examination
  • Committee constituted to prepare the Guidelines for Digital
  • Committee constituted to review the performance and to suggest improvements in digital valuation and QPDS.
  • Committee constituted to suggest modalities for the conduct of examinations for higher semester students of UBDTCE,
  • Committee constituted to discuss about the procurement of secured evidencing solutions from M/s. Pitney Bowes
  • Committee constituted for the verification of Ph.D.
  • Malpractice Cases inquiry

Awards and Achievements: 

  • Honored by Honorable Governor of Karnataka Sri Vajubhai Rudabhai Vala, Minister for Higher Education, Government of Karnataka Sri G T Deve Gowda, and Vice Chancellor of Visveswaraya Technological University, in recognition of contribution of services to VTU as Registrar of Evaluation on 29th April 2018 on occasion of VTU Foundation day celebrations at VTU Campus
  • Received National Global Leadership Award for Environment, Education and Social work, in the presence of Sri D.H Shankara Murthy, Honorable Chairman for Legislative Council, and Dr. Ramachandra Gowda, Chairman of Planning Commission, Government of Karnataka, during March 2011, awarded by Power Development and Energy Research
  • Received the Best Citizen of India Award from the International publishing house, New Delhi.
  • Received excellent teacher‟s award during 2005, 2006 and 2007 from Management, BIET, Davangere.

Professional Memberships:

  • International Association of Engineers
  • Indian Society for TechnicalEducation

Workshops /Seminars Organized:

  • Organized one week Faculty Development Program on “IT Infrastructure Management Services” held at BNMIT, Bangalore from 5th to 9th January
  • Organized Faculty Development Program on “Cryptography and Network Security Issues” sponsored by VGST, Bangalore held at VTU Campus, Jnana Sangama, Belgaum during April 2012
  • Worked as one of the organizer for the International conference on “Biomedical Instrumentation” jointly organized by VTU, Belgaum and Instrumentation Society of India, IISc, Bangalore
  • Organized a National conference on “Recent Trends in Cryptography” on 1st and 2nd April 2009 at BIET, Davangere

Expertise/Subjects handled

  • Agile Technologies – Principles and Practice
  • Wireless and Mobile Netwoks
  • Wireless Sensor Networks
  • Advanced Computer Architecture
  • Computer Systems Design and Architecture
  • Operating Systems
  • Computer System Performance Analysis
  • Distributed Systems
  • Computer Networks
  • Management and Entrepreneurship
  • Graph Theory and Combinatorics
  • Object Oriented programming in C++
  • Data Structures
  • Basic Electronics
  • Analog Electronic Circuits
  • Electronic Circuits
  • Logic Design
  • Mobile Communications
  • Mobile Computing
  • Software Engineering
  • Computer Communications
  • Computer Concepts and C Programming
  • Distributed Operating Systems

Research Experience Details:

  • Cryptography provides security for the information which is very much required in the fast evolution of digital data exchange. There has been a tremendous enhancement in the field of cryptography, which tries to manipulate the plaintext so that it becomes unreadable, less prone to hacker and crackers, and again obtain the plaintext back by manipulating this unreadable text in some way. The main emphasis of the research work was to enhance the security of AES and other well-known block ciphers such as Blowfish and CAST algorithms.
  • AES algorithm was made stronger by making the S-Box key dependent without changing the basic operations of
  • The performance of Blowfish and CAST128 was improved by modifying its
  • A new algorithm Blow-CAST-Fish is introduced by combining Blowfish and
  • All the above algorithms were tested for security through Encryption quality, Key sensitivity, Histogram and Correlation coefficient analysis using digital
  • Effect of removal of Shiftrows stage and Mixcolumns stage was

Now, the emphasis is on design and analysis of key scheduling algorithm and low area FPGA implementation.


Research Supervision

Sl.No.Name of the studentPh.D/M.PhilUniversityStatusTitle of Research Topic
1Sharada Y YalavigiPh.DVTUPursuingSecurity Issues in distributed

sensor Networks

2Shailaja APh.DVTUPursuingDesign and Analysis of Light

weight Block Ciphers

3Rekha CPh.DVTUPursuingDesign of key scheduling

algorithm for block ciphers

4Jyothi RPh.DVTUPursuingMulti-Objective Optimization for the performance of predictive algorithms on the given data set and Predictive

data analytics

6Varun C RPh.DVTUPursuingEfficient Cyber Crime Prediction Module by

applying Machine Learning Technique

7Girija JPh.DJNTUPursuingDesign, Implementation and Analysis of Novel Registration Algorithms for

4D Medical Images.

8Harini SPh.DVTUPursuingIntelligent System for Analysis of Indian Food


Funding Received:


Research Publications:

In National & International Journals 

International Journals:

  • Harini S, Dr.Saritha Chakrasali, Dr.Krishnamurthy G N, “A Survey on Food Grain Identification Techniques”, International Journal of Innovative Research in Science, Engineering and Technology, Volume 7, Issue 6, June 2018, p-ISSN 2347-6710, e-ISSN :2319-8753.
  • Shailaja A and Dr Krishnamurthy G N, “LOW AREA FPGA IMPLEMENTATION OF DROMCSLA-QTL ARCHITECTURE FOR CRYPTOGRAPHIC APPLICATIONS” International Journal of Network Security & Its Applications (IJNSA) Vol. 10, No.3, May2018
  • Sharada Y. Yalavigi, Dr. Krishnamurthy G. N, Dr. Nandini Sidnal, “Security Schemes to Resolve Wormhole Attack in Distributed Sensor Networks”, Volume 4 Issue 2, February 2015, International Journal of Science and Research (IJSR),1422-1430.
  • Shailaja S, Dr Krishnamurthy G N, ”Comparison of Blowfish and Cast-128 Algorithms Using Encryption Quality, Key Sensitivity and Correlation Coefficient Analysis”, American Journal of Engineering Research (AJER) e-ISSN : 2320-0847 p-ISSN : 2320-0936 Volume-3, Issue-7, pp-161- 166.
  • Krishnamurthy G N and Dr. V Ramaswamy, “Performance Analysis of Blowfish and its modified version using Encryption quality, Key sensitivity, Histogram and Correlation coefficient analysis”, International Joint Journal Conference in Recent Trends in Engineering, Vol. 1, No. 2, India
  • Krishnamurthy G N, Dr. V Ramaswamy, “Encryption Quality Analysis and Security Evaluation of CAST-128 Algorithm and its modified version using digital images”, International Journal of Network Security and Applications,
  • Krishnamurthy G N, V Ramaswamy, “Making AES Stronger: AES with Key Dependent S-Box”, IJCSNS International Journal of Computer Science and Network Security, VOL.8 No.9, September 2008, pp 388-398,
  • Krishnamurthy G.N, Dr. V. Ramaswamy, Leela G.H and Ashalatha M.E,“Blow-CAST-Fish, a New 64-bit Block Cipher”, IJCSNS, ISSN: 1738-7906, Vol. 8, No.4, pp 282-290, April -2008, Korea.
  • Krishnamurthy G.N, Dr. V. Ramaswamy , Leela G.H and Ashalatha M.E, “Performance enhancement of Blowfish and CAST-128 algorithms and Security analysis of modified Blowfish algorithm using Avalanche effect”, Journal ISSN: 1738-7906, Vol Number: Vol.8, No.3, pp 244- 250, March -2008, Korea.

Papers presented in International/National Conferences


  • Girija J, Dr.Krishanamurthy G N, Dr. P. Chenna Reddy, “4D Medical Image Registration : A Survey” International conference on Intelligent Sustainable Systems organized by SCAD Institute of Technology, Palladam, Tamil Nadu, 7thand 8th December
  • Girija J, Dr.Krishanamurthy G N, Dr. P. Chenna Reddy, “Gradient analysis of 3D image sequence using DTCWT and DD DTCWT” International conference on Science, Technology & Management, at Institute of Electronics and Telecommunication Engineers, Bengaluru, on 24thSeptember
  • Krishnamurthy G N, Dr. V Ramaswamy, “Encryption quality analysis and Security Evaluation of Blow-CAST-Fish using digital images”, International Conference on Computer, Electrical, and Systems Sciences, and Engineering, Amsterdam, The Netherlands, held during July 25-26,
  • KrishnamurthyG N, V Ramaswamy, “Study of effect of removal of Shiftrows and Mixcolumns stages of AES and AES-KDS on their Encryption Quality and hence Security”, International conference on Computer, Electrical, & Systems Science, & Engineering, Organized by World Academy of Science, Engineering and Technology, Penang, Malaysia, during 22nd to 24th February 2011
  • Krishnamurthy G.N, Ramaswamy V, Leela G.H, Ashalatha M.E, “Performance enhancement of CAST-128 algorithm by modifying its function” International Joint Conferences on Computer, Informationand Systems Sciences and Engineering (CISSE 07), December 3, 2007 to December 14, 2007, Technically Co-Sponsored by Institute of Electrical and Electronic Engineers (IEEE), University of Bridgeport, Bridgeport, CT, 06610, USA, published in Sringer Series.
  • Prof. Krishnamurthy G.N, DR. V. Ramaswamy and Mrs. Leela G.H, “Performance enhancement of blowfish algorithm by modifying its function and demonstrate the same with VHDL simulation” International Joint Conferences on Computer, Information and Systems Sciences and Engineering (CISSE 06), December 4, 2006 to December 14, 2006, which is Technically Co-Sponsored by Institute of Electrical and Electronic Engineers(IEEE), University of Bridgeport, Bridgeport, CT, 06610, USA, published in Sringer Series.


  • Krishnamurthy G N, V Ramaswamy, “Enhancing the performance of Blowfish algorithm by modification to its function” in the on “Cryptology” JNNCE, Shimoga, 12th– 14th Aug 2005
Session Chair at International Conference:
  • Chaired a session in the International Conference on Computer, Electrical, and Systems Sciences, and Engineering, Amsterdam, The Netherlands, held during July 25-26,
  • Chaired a session in the international conference on Computer, Electrical, & Systems Science, & Engineering organized by World Academy of Science, Engineering and Technology, at Penang, Malaysia, during 22nd to 24th February
  • Member of Technical Committee of World Academy of Science, Engineering & Technology for the year 2014, 2015 & 2016.
Participation in Training courses/Seminars/Workshops
  • Attended AICTE / ISTE sponsored STTP on “Recent trends in Computer Graphics and Vision Methodology” conducted by Pondechery Engg College, held at Pondechery, from 14-05-2001 to 25- 05-2001.
  • Attended AICTE / ISTE sponsored STTP on “Fuzzy logic and its applications to power systems” conducted at BIET, Davangere, from 15-03-2004 to26-03-2004.
  • Delivered a lecture on “Shell programming” in the STTP on “Power Linux – unleash the full potentials of linux” during 14 -02 -2004 to 25 – 02 –
  • Participated in  the  „.NET  train  the  trainer‟  workshop,  organized  by  board  for  IT  Education standards(BITES) in association with Microsoft Corporation(India) Pvt. Ltd., conducted from 07th to 11th June, 2004 at BIET,
  • Attended a workshop on “QOS on Internet” from 4thto 9th July 2005 at BIET,
  • Attended KSCST 23rdSponsored Project cum Exhibition on 12th and 13th Jan
  • Attended one day Workshop on “Model   Question Papers and  Guidelines preparation” for 6th sem BE   CSE/ISE of  VTU at   BMS  College of Engineering on 12-04-2001.
  • Attended one day Seminar on “Building and Managing Computer Resources of an Organization“ held on 14thjuly 2001 at SDM College of Engineering ,Dharwad
  • Attended Workshopon “DB2 “ conducted at BMS College of Engineering, conducted by IBM/VTU from 13-08-2001 to 18-08-2001.
  • Participatedin the 15th CSI Karnataka Student Convention held at PES Institute of Technology, Bangalore during Dec 07, 2001 to Dec 09,
  • Participatedin one day Orientation Program on 18-01-2002 Organized by IGNOU Regional Center, Bangalore at BIET,
  • Attended One day meeting at Bangalore regarding Mahithi Sindhu
  • Attended  Fifth  State level  ISTE  convention  and  National  Seminar on “Role of Technical Education in meeting the challenges of Globalization” on 12th and 13th  2002, at University B.D.T College of Engineering, Davangere
  • Attended one day conference on “Microsoft TechEd” at JRD Tata auditorium, IISc complex, Bangalore, on 15 Sept 2003
  • Attended International conference on “Software Agents” held at Bapuji Institute of Engg. &
    Technology, Davangere on 5th and 6th Sept. 2003.
  • Attended International conference on “Software Agents” held at Bapuji Institute of Engg. & Technology, Davangere on 5thand 6th 2003.
  • Attended Infosys initiated “Campus Connect Programme” workshop from 16-12-2004 to 18-12-2004 at Infosys,
  • Attend the Faculty Enablement program at Infosys, Technologies, Bangalore from 13thMarch to 17thMarch
  • Attended Infosys initiated Soft Skills training program Infosys, Technologies, Bangalore from 7thAugust 2006 to 11th August 2006.
  • Attended the Intel Multi-Core Training Programming for academia conducted by VTU-Intel India Private Limited, Bangalore at RV College of Engineering, Bangalore, held from 28thto 30th March 2007.
  • Represented BIET for the Placement officers meet from leading Institutions from different parts of the country to discuss the strategies of placement, organized by Mahindra British Telecom, held at Pune, during 2007

Visits Abroad:

I have worked as Deputy Chief Superintendent of VTU examinations at JSSATE, Mauritius from 25th Dec 2009 to 4th Jan 2010 and presented a paper in an International conference at Penang, Malaysia, during 22nd to 24th February 2011 and another in an International conference at Amsterdam, The Netherlands, held during July 25-26, 2012. I have also visited Germany, Austria, Italy, Switzerland, France and Vatican City. Visited European (Belgium, Netherlands) Universities (University of Ghent, Gronongen and Antwerp) as a part of delegation team to explore the possibilities of collaboration with those Universities during October 2013.

Personal Details:
  • Date of Birth:15-03-1974
  • Sex: Male
  • Family Details: Wife: Swetha M.BDaughters: Aisiri. N K & Akshara N K
  • Passport number: K2650741 (valid upto 15thMarch 2022)




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