New Dawn of Security in Telecommunications: Quantum Cryptography

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New Dawn of Security in Telecommunications: Quantum

Cryptography

Presented By: Mayssaa El Rifai

Bhagyashri Arun Darunkar

University of Oklahoma, Tulsa

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Introduction: Need for secure communication

*Ref: —Milner, Newsweek, Oct. 10, 20112

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Timeline of Secure Communication

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Why Quantum Cryptography?

• Quantum Cryptography was first proposed in 1970• The first protocol in quantum cryptography was proposed in a paper published in

1984 by Bennett and Brassard (BB84)• The basics of the quantum cryptography rest on two main principles

The Heisenberg uncertainty principle

The no-cloning theorem

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Protocols

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Limitations of BB’84

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Single photon requirement Data rate Distance

Limitations

Solution

USE MULTI-PHOTON TOLERANT QUANTUM SECURE PROTOCOL

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The Three-stage Protocol: Idea

ALICE BOB

ALICE BOB

Information

Information

Information

Information

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The Three-Stage Protocol: Science

Proposed by Dr. Kak in 2006X

UA

X

UB

UA(X)

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The Single-stage protocolAlice and Bob make use of this shared information to form new key by using concept of

braiding

ALICE BOBInformation

Information

Variation in Dr. Kak’s protocol, proposed by James ThomasAssumption Prerequisite

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Summary

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Thank You

Any Questions?

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Contact DetailsBhagyashri Darunkar Email: Bhagyashri@ou.eduMayssaa El Rifai Email: mayssaa@ou.edu

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