CONCLUSION
The combination of quantum mechanic with cryptography has
given rise to a new field which is quantum cryptography. In this project, we
started by introducing the basic cryptographic notions, namely
encryption/decryption, one type of cryptosystems and Diffie-Hellmann
Key-Exchange.
As this field make a jonction with physics, in our second
part, we studied some notions related to quantum mechanics as polarization,
Heisenberg Uncertainty Principle, quantum entanglement and the no-cloning
theorem where we explained the use of those notions. The notions developed in
the second section of this project, are the basic and important one to
understand physics notions used in quantum cryptography and those notions allow
us to introduce a Quantum Key Distribution Protocols (QKD), QKD as a main
element in quantum cryptography, follow by Quantum Key Distribution
implementation technologies. We also gave some examples and come up with the
last point related to Quantum key Distribution applications.
Indeed, we reach our last point by taking one example of
application SECOQC which is a quantum network. In this application, BBN
Technolgy with Havard University and others groups developed new protocols for
quantum area in the F6 project. The protocols was developped in OSI model,
using the composition of the model, the researchers added a new componant in
the classical protocols acting with specific layers. As in session layer, they
added a QKD in TLS/SSL and the combination give the QSSL protocol again they
added in network layer, they combine two protocols nammed IPSEC plus QKD and
they found a new protocol called SEQKEIP. The last one is data link where they
found other name like Q3P, which is the composition of QKD with a protocol
Point-to-point protocol. This is one of the applications of quantum
cryptography. All the applications and technologies are possible by the way of
single photon and single detector. The only way they are used for transmitting
information through quantum network is an optical fiber.
2
Acknowledgements
I express my sincere thanks to the AIMS-NEI and AIMS-Senegal
family, for funding, providing me with an opportunity to study and all the
necessary facilities for completion of my work in good condition.
I place on record, sincere gratitude to my supervisor Dr.
Kassem Kalach, from Institue for Quantum Computing. I am extremely thankful and
indebted to him for his expertise, sincere and valuable guidance extended to
me.
Big thanks to my father Jean Kanyinda Bidiku and mother Jeanne
Ngomba Bitota for helping and supporting me since i was borned till now. Thanks
to my sisters Lydie Gambwalemba Galubadi-a-Lemba, Fidele Kapinga Kalonji, Ruth
Muambi Kanyinda, Esther Mbombo Kanyinda, Dorcas Ngomba Kanyinda.
I thanks my tutor Miss. Bernadette Faye for her help,
constructive criticism, encouragement and support during my essay phase.
I also thank my colleagues and all tutors, one and all, who
directly or indirectly, have lent their hand in this venture.
3
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