Particle magic need for quantum

International Journal of Artificial Intelligence & Applications (IJAIA) Vol. 6, No. 5, September 2015
DOI : 10.5121/ijaia.2015.6507 99
PARTICLE MAGIC: NEED FOR QUANTUM
CRYPTOGRAPHY RESEARCH IN THE SOUTH
ASIAN REGION
Dhishan Dhammearatchi
Sri Lanka Institute of Information Technology Computing (Pvt) Ltd
ABSTRACT
Securing sensitive and important information from intruders is a tedious task in the 21st
century. In order to
protect information different ciphering techniques has been used. Quantum Cryptography has taken a new
path in the field of crypto systems where all the presently used crypto systems are classified as classical
cryptography systems. Classical cryptography systems use mathematical formulas where quantum
cryptography uses the principles of photon polarization and heisenberg uncertainty principle. As the south
asian region is developing rapidly in almost all the sectorsthe need of securing information has become a
difficult task. Therefore, the need of starting extensive research on quantum cryptography for the south
asian region to safeguard information from intruders has been the purpose of this study. Comparative
study of the growth of the telecommunication sector in the south asian region and how quantum
cryptography could assist in securing information has been discussedas results.In the end, details of the
need to research on quantum cryptography in the south asian region to overcome future predicted cyber
threats are also discussed.
KEYWORDS
Quantum Cryptography, Classical Cryptography, South Asia
1. INTRODUCTION
From as far as the written history is concerned mankind has been involved in sending different
messages across families, states, as well as countries for different purposes. The messages could
be classified into different categories. Exchange of family information and warfare information
were the main two types involved. The transport medium was with the assistance of birds or
through human message’s. Mostly these messages were written in plain text. Before long these
messages were intercepted by rivalry which was a major disadvantage when coming to warfare.
From the above mentioned history to the present, interception can be seen. However, the medium
of receive/ transmission and method of intercepting has been changed from time to time. As a
solution to the above mentioned issue different cryptography methods were introduced. Figure
01, illustrates how a plain text from a sender is intended to be sent to the receiver. ATBASH,
Scytale, Polybius Square, Caesar, Changing keys, Wheel, Playfair were some of the ancient
ciphering methods used [1] [2]. A leap from ancient cryptology happened after the World War I
when Germany developed a ciphering machine named as “Enigma” [2]. However, Enigma and
other similar cipher systems such as “Stepping Switch” systems were exploited during World
War II and new ciphering techniques were on research till 1976 where Data Encryption Standard
(DES) was introduced [1] [3].

100
DES uses two different keys in communication. Those are public and private keys. The algorithm
distinct different means of communication. As figure 02, explains the public key exploitation
does not reveal the encrypted message till the private key is not known to the attacker [1] [3].
DES is commonly categorized as a symmetric encryption technique where the sender and the
receiver share a key for encryption as well as decryption [4]. It contained a 56-bit key length
where by 1999 was too small to be cracked within 23 hours in a distributed net project using an
exhaustive key search method [5]. As it was exploited DES was removed as the ciphering method
for National Security Systems. However, DES is still used presently as a component for the
Triple Data Encryption Algorithm (3DES/TDEA) which came as a replacement for DES.
The system has been illustrated through figure 03. 3DES is also a symmetric encryption
technique where a number of three DES keys are used instead of one DES key. A combination of
three 56-bit key lengths gave a total of 168-bit key which was more secure than DES. However,
as 3DES is a symmetric system where the same key is shared between the source and the
destination as well as the weightage of the key made the cipher system more vulnerable as well as
too slow in performance [4]. As a solution Advanced Encryption Standard (AES) was introduced.
AES is also a symmetric cipher technology with key values of 128, 192, and 256 bits.
Functionality of AES system has been illustrated through figure 04. The main disadvantage of
AES is the common issue faced by symmetric encryption where the same key is used for
encryption as well as decryption. However, with the use of four main processing methods used in
AES, which are 1) SubByte; 2) ShiftRows; 3) MixColumns; and 4) AddRoundkey secures the
key which is better than other symmetric techniques [6]. A better solution than symmetric
systems were researched where asymmetric encryption systems were built. Asymmetric
encryption systems such as Rivest-Shamir-Adleman (RSA) eliminates the shared key exchange
issue by using different encryption and decryption keys [7].
RSA is a cryptosystem where the source of the data uses the receiver’s public key to encrypt the
data where it is only possible for the specific receiver to decrypt using the private key where RSA
uses block cipher encryption. It uses two large prime numbers being multiplied as and converts to
0s and 1s which are usable keys that cannot be factored in reasonable time [8] [9]. This is the
widely used cryptosystem in web browsers, email programmes, mobile phones, virtual private
networks, and secure shell [9]. However, with the introduction of the cryptanalysis which reveals,
or to attempt to reveal cipher text into the original message. It assesses the vulnerability of
cryptosystems such as RSA. The revealing of the original message is to factor the large prime
number to get the private decryption key and the public encryption key. The cryptanalysis to
crack the above mentioned keys combines a mathematical, brute-force, and implementation
attack [8]. However, due to the factor of implementation of faster computers, supercomputers,
and quantum computers enable to factor cipher text into associated prime numbers of the original
message which has been discussed in [10]. Furthermore, there is a possibility for an eavesdropper
to keep a copy/clone the captured packet for future decryption of the cipher text as well as there
would be no trace or warning that indicates the mentioned anomaly. In the early 1970s, a new
cryptography named Quantum Cryptography (QC) was recommended and in the year 1984 the
first QC protocol named “BB84” was introduced [10].
QC is based on quantum physics where the encryption and decryption happens through quantum
state of light which is the closes mankind has reached in the law of nature. As a fundamental
theory is concerned QC is based on two elements which are the Heisenberg Uncertainty principle
and the principle of photon polarization [10]. Presently, this technology is researched widely
around the world as QC is a non-clonable technology first presented by WoottersAndzurek in
1982 [11]. Furthermore, through figure 06 Quantum Key distribution (QKD) has been illustrated
which explains that QC is different than conventional/classical cryptography. QC was first

101
implemented for fibre optics where in 2004 two Austrian banks with the distance of 500m in road
system, but 1.5 km of fibrelaid in a sewage system has been linked was the first transaction of
money transfer without interruption [10]. In the same paper, it discusses the QC operation in free
space in Vienna in the year 2003.
Through this paper the author has concentrated on why QC is important to South Asian
Countries. Prior to the above mentioned purpose the author would highlight the importance of the
growth of telecommunication services in the South Asian Region. The growth has been
determined by comparing the growth of broadband subscription services in the years of 2012 and
2013 with the assistance of censor statistics of three South Asian Countries. The subscription has
grown as shown; Sri-Lanka 47.3%; India 40.2%; Pakistan 26.5% [12] [13] [14]. It has been
illustrated through figure 07, 08, and 09.
The analyzed statistic indicated above states an increase of a number of individuals connected to
the World Wide Web. The number comprises governmental, private as well as individual
connections. Online connectivity has enabled reachability to different services offered by large to
mid/small size institutes which comprises financial, educational, telecommunication, airlines and
more. Critical information would be transferred using different service providers in the South
Asian region in the above mentioned services. It explains that more the accessibility to the outside
through serviceproviders, carries more risk of exploitation. Exploitation of information can result
a downfall of not only an institute, but as well as a country. Therefore, almost all the
organizations in the region should be using a crypto system to encrypt and decrypt sensitive
information. Mostly Symmetric and Asymmetric cryptography systems would be widely used.
Through the mentioned explanation classifies the issues with symmetric and asymmetric systems
which were described earlier in this paper. The author considers sharing keys or mathematical
algorithms would not be secure systems as the processing power of the ordinary computers would
be growing each year which results an increase of exploitation year by year. Therefore, the author
suggests Quantum Cryptography a better replacement to the conventional crypto systems. At the
same time the author explains the need of research for QC for the South Asian Region which
would be discussed extensively in the upcoming sections.
2. QUANTUM CRYPTOGRAPHY IMPLEMENTATION
The need for Information and Communication Technology (ICT) has rapidly developed from
early 1970s’ to present where the concept Anything, Anytime, Anywhere has taken a toll on day
to day lives of a human being. Any information can be accessed at any time of the day across the
globe with just an internet connection. Organizations require employees to be productive by
giving access to critical information at the work place, on the go through mobile applications or at
home. At the same time organizations invest in keeping the information secure as possible from
intruders through the assistance of different vendor products, following different standards and
giving permission to different users inside the organization as well as for outside users. The most
popular method of securing information is through a system named as cryptography. It is where
information is encrypted when transmitting and decrypted when receiving. Widely used crypto
systems uses an algorithm that comprises mathematical formulation. However, latest
development, such as cryptanalysis has indicated the vulnerability of widely used crypto systems
by cracking encryption and decryption. This vulnerability has been addressed by researchers
where in early 1980s’ Quantum Cryptography was introduced which is based on natural laws of
photons.

102
2.1 Conventional Cryptography and its limitations
Conventional Cryptography comprises two different key algorithms. Those are Symmetric and
Asymmetric key algorithms. Symmetric key algorithms such as Data Encryption Standard (DES),
Triple Data Encryption Algorithm (3DES/TDEA), and Advance Encryption Standard (AES) uses
the same key to encrypt as well to decrypt information where RSA (Ron Rivest, AdiShamir and
Leonard Adleman) uses different keys to encrypt as well as to decrypt information. This key
generation is a product of prime factorization. Longer the key generation better secured.
However, longer the key, slower the system operates in data communication as the processing
unit of the device needs to utilize the processing power immensely for the encryption and
decryption process. The development of faster machines and quantum computation has enabled
the keys to be cracked faster than legacy computers. Specifically, man in the middle attacks could
be dangerous in transmitting critical information. A person located center of the communication
pathway between the source and the destination can obtain original information and can keep a
copy for later use and send the original to the destination. The difficulty faced by most of the
network administrators is that there are no information received whether the data was intercepted
in the middle or not.
In 1984 Quantum Cryptography was introduced with BB84 which was beyond classical
encryption and decryption methods. It used the source of light to operate in a linear and circular
polarization where a middle person tries to intercept the light particle will be destroyed where a
notification of particles not reaching the destination has been sent. At the point of interception
data will stop transporting where the middle person would not receive any further information.
2.2 Theoretical overview of Quantum Cryptography
Quantum cryptography is based on quantum mechanism. When QC was first introduced it was
researched on optical fibre where discrete particles named as photons were used for the crypto
system. In QC encryption Heisenberg uncertainty principle is a measurement which states that a
photon in transmission cannot be measured. If tried the photon would be destroyed. Photon
polarization is also a principle used in QC. It explains the direction of electromagnetic field
associated with its wave. There are four different polarization states. 0-bit can be represented
through a horizontal state which states -450
and 1-bit through vertical state of +450
. It has been
illustrated through figure 10. A single photon is called Quantum Bits or QBITS.
However, QC would also distribute keys from the source to the destination. The difference
between the distribution in classical cryptography and QC is that QC uses a separate channel to
distribute quantum keys which are called Quantum Key Distribution (QKD). Using the quantum
channel a large number of photons are sent across from the source to the destination which are
recorded based on the orientation pattern the destination was able to record. Afterwards, the
filtered orientation will be sent across in the classical channel which is through the normal data
distribution channel without disclosing the actual results. Emitter located in the source compares
the sent orientation from the destination with the actual sent. Then the emitter sends the
mismatching orientation to the destination where the mismatch is discarded from both source and
the destination. This phase is called shifting of the key.
2.3 The importance of Quantum Cryptography in the real world
As mentioned in the section 2.2, before transmitting information QKD is exchanged to verify the
agreed key combination. The advantage of QC over classical cryptography is that QC firstly a
different medium of key distribution which is involved with photons, secondly by using a
separate channel named as Quantum channel to distribute a large number of photons, and thirdly

103
the mismatching orientation would be discarded without the actual results not been shared by the
receiver.
Through the above mentioned processors an eavesdropper would have a difficulty in identifying
the real key distribution. If any case an eavesdropper is present in the middle firstly source and
the destination which shared the orientation would not be the real one that the eavesdropper has,
secondly due to the reason of mismatch orientation been discarded the real key distribution or the
discarded orientation would not be accurate to the eavesdropper where statistically it is a 50-50
chance of getting it correct and thirdly if the eavesdropper does any change to figure out the
correct key orientation photons would be destroyed where alerts would raise of destroyed
photons.
The advantages mentioned above displays an error free communication along with more security
and monitoring capabilities been involved which cannot be seen in classical cryptography.
2.4Varieties of services offered and latest implementation of Quantum Cryptography
As mentioned in section 1.0, two Austrian banks were involved in transferring the first money
transaction while the same paper discusses open air transmission in Vienna. In Switzerland
turnkey services in quantum cryptography has been commercialized [16]. Furthermore, quantum
cryptography implementation in wireless networks has been discussed through a protocol named
as SARG04 [17]. In SARG04 a different 4-way handshake has discussed over 4-way handshake
which is standardized by IEEE through 802.11. In the year 2004 Cambridge, Massachusetts
became the first quantum cryptography network that is up and running while Chip Elliott of
BBN Technologies in Cambridge sent the first data across the Quantum Net [10].
There are some modifications such as detecting errors, anomalies using cryptanalysis which is
theoretically researched which needs to be experimentally researched. However, it is the latest
generation of cryptography with wireless and optical fibre experiments and deployments
happening throughout the world. Mobile QC is yet to be researched.
2.5 Need of Quantum Cryptography to the South Asian region
The South Asian region has a number of developing countries where a lot of financial activities
along with a number of cyber threats increasing which is a major threat to the development of the
region. According to the Federal Bureau of Investigation: Internet Crime Complaint Centre’s
2014 report, India is placed 04th
while Pakistan is placed 17th
in complaint statistics by country
[15]. Furthermore, Colombo, Sri Lanka has been ranked first as the fastest growing cities in the
world [18].
The stated statistics indicated above as well as in section 1.0 which states the growth of
telecommunication services in the region makes the region more depended on Information
Technology with the concept of Internet of Things. Along with it brings more exploitation on
sensitive information which effects from the stock markets of the countries, defense systems of
the countries to day to day activities with the association of Internet. Different anomalies such as
scanning, enumeration, phishing, escalating privileges, Denial of service attacks (DOS),
unauthorized access to the local super user (U2SU), and Unauthorized access from a remote
machine (R2L) would be increasing significantly. Furthermore, terrorist activities are not as field
war any longer. It is a cyber-war. As described South Asian is rising in collaborating cybercrimes
by terrorist and extremist for the international movement of money, smuggling arms, and illegal
drugs [19].

104
Therefore, with the analysis stated above the author would recommend in starting quantum
cryptography research sooner than later in South Asian region. Furthermore, the author considers
latest cryptography needs to be improved to mitigate and overcome cyber threats and anomalies.
3. CONCLUSION
Cryptography has become more advanced and more secure with Quantum Cryptography without
being depended on mathematical formulas and to protect the algorithms created being cracked by
intruders. South Asia is a vastly developing region with vast telecommunication subscription base
along with a large transaction base accumulating in day to day basis in almost all the sectors.
With it comes disruption of compromising sensitive information. In this paper the author has
discussed not only the technical details of Quantum Cryptography, but also a widespread
implementations that have been executed in the real world except mobile communication. Along
with it the author has stated combined Quantum Cryptography and South Asian Region through
the need of starting research on Quantum Cryptography in South Asian Regions to overcome
future predicted cyber threats.
ACKNOWLEDGEMENT
My sincere thanks goes to the staff members of Sri Lanka Institute of Information Technology
Computing (Pvt) Ltd as well as all the authors whom I have referred in this research paper.
Without their contribution to the field would have not been possible to be successful in this
research.
REFERENCES
[1] Saini, N., Mandal, S., “Review Paper on Cryptography”, International Journal of Research, May
2015, pp. 45-49.
[2] Cohen, F.B., “Introductory Information Protection” Fred Cohen and Associates, 1995 <Available -
http://all.net/books/IP/Chap2-1.html > [Access 06th June 2015].
[3] Diffie, W., Hellman, M., “New Direction in cryptography”, IEEE Transaction on Information
Technology, November 1976, pp. 644-654.
[4] Karthil, S., Muruganandam, A., “Data Encryption and Decryption by using Triple DES and
performance analysis of crypto system”, International Journal of Scientific Engineering and Research,
November 2014, pp. 24-31.
[5] Kenekayoro, P.T, “The data encryption standard thirty four years later: An overview” African Journal
of Mathematics and Computer Science Research, October 2010, pp. 267-269.
[6] Fadul, I.M.A., Ahmed T.M.H., “Enhanced Security of Rijndael Algorithm using Two Secret Keys”,
International Journal of Security and its applications, July 2013, pp. 127-134.
[7] Pahal, R., Kumar, V., “Efficient Implementation of AES”, International Journal of Advanced
Research in Computer Science and Software Enginnering, July 2013, pp. 290-295.
[8] Abubakar, A., Jabaka, S., Tijjani, B.I., Zeki, H.C., Usman, M.J., Raji, S., Mahmud, M.,
“Cryptanalytic attacks on Rivest, Shamir, and Adleman (RSA] cryptosystem: Issues and Challenges”,
Journal of Theoretical and Applied Information Technology, March 2014, pp. 37-43.
[9] Kota, C.M., Aissi, C., “Implementation of RSA algorithm and its cryptanalysis”, Proceedings of
ASEE Gulf-Southwest Annual Conference, March 2002.
[10] Kilor, P.P, Som, P.D., “Quantum Cryptography: Realizing next generation information security”,
International Journal of Application or Innovation in Engineering and Management, February 2014,
pp. 286-289.
[11] Sharma, R.D., “Quantum Cryptography: A New Approach to Information Security”, International
Journal of Power System Operation and Energy Management, 2011, pp. 11-13.
[12] Central Bank of Sri Lanka, “Economic and Social Statistics of Sri Lanka 2014”, Central Bank of Sri
Lanka Statistics Department, April 2014, pp. 160.
[13] Baruah, P., Baruah, R., “Telecom Sector in India: Past, Present and Future”, International Journal of
Humanities and Social Science Studies, November 2014, pp. 147-156.
[14] Pakistan Telecommunication Authority, “Annual Report 2014”, 2014 pp. 51.

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[15] Federal Bureau of Investigation: Internet Crime Complaint Centre, “2014 Internet Crime Report”,
Federal Bureau of Investigation, May 2014, pp. 22.
[16] Reddy, M.I.S., Reddy, K.S., Reddy, M.P., Bhat, P.J., Rajeev, “Key Distillation Process on Quantum
Cryptography Protocols in Network Security”, International Journal of Advanced Research in
Computer Science and Software Engineering, June 2012, pp. 12-24.
[17] Ahmed, J., Garg, A.K., Singh, M., Bansal, S., Amir, M., “Quantum Cryptography Implementation in
Wireless Network”, International Journal of Science and Research, April 2014, pp. 129-133.
[18] Hedrick-Wong, Y., Choong, D., “Master Card: 2015 Global Destination Cities Index”, MasterCard
Worldwide Insights, 2015, pp. 02.
[19] Rollins, J., Wilson, C., “Terrorist Capabilities for Cyberattack: Overview and Policy Issues”, CRS
Report for Congress, January 2007.
Author
I am a Lecturer / Network Engineer with over 08 years of hands on experience who worked for Millennium
Information Technologies, a subsidiary of the London Stock Exchange as well as a lecturer in SLIIT
Computing (Pvt) Ltd which is a leading private university in Sri Lanka. I have been involved in many
critical projects primarily in Sri Lanka, United Kingdom, and the Maldives. I have also acquired a
bachelors and a masters degree with a number of professional examinations as well as being a Toastmaster
with Competent Communication Status.
APPENDIX
Figure 01: Process involved in encryption and decryption
Figure 02: Public key involvement in DES
(Source: http://www-ee.stanford.edu/~hellman/publications/24.pdf)
Figure 03: 3DES System

106
(Source: http://www.ijser.in/archives/v2i11/SjIwMTM0MDM=.pdf)
Figure 04: AES System
(Source: http://arxiv.org/ftp/arxiv/papers/1307/1307.3057.pdf)
Figure 05: RSA Cryptosystem
(Source: http://www.jatit.org/volumes/Vol61No1/5Vol61No1.pdf)

107
Figure 06: Quantum Cryptography Operation
(Source: http://www.interscience.in/IJPSOEM_Vol1Iss1/paper3.pdf)
Figure 07: Sri Lankan Telecommunication Services of Years 2004 – 2013
(Source: http://www.cbsl.gov.lk/pics_n_docs/10_pub/_docs/statistics/other/econ_&_ss_2014_e.pdf)
Figure 08: Indian Telecommunication Services 2007 – 2014
(Source: http://www.ijhsss.com/files/RASHMI-BARUAH.pdf)

108
Figure 09: Pakistan Telecommunication Services 2008 – 2013
(Source: http://www.pta.gov.pk/annual-reports/ptaannrep2013-14.pdf)
Figure 10: Photon Polarization states
(Source: http://www.ijarcsse.com/docs/papers/June2012/Volume_2_issue_6/V2I600121.pdf)

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