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Presented by: Mayssaa El Rifai and Bhagyashri Arun Darunkar
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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: [email protected] El Rifai Email: [email protected]
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