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Cryptography nowadays is looking for a secure and trusted channel especially in key distribution between two legitimate parties without being intercepted or deciphered by intruders either in wireless or wired communication medium. The invention of Quantum Cryptography as part of quantum mechanics has solved the key distribution problem in cryptosystem by providing a secure communication channel between two parties with absolute security guaranteed by the laws of physics. Quantum Key Distribution (QKD) as a new method in key distribution used to transmit secret key between two legitimate parties. This paper will discuss the implementation of BB84 protocol in UDP 802.11i Wireless Local Area Network (WLAN). WLAN as wireless links are much noisier and less reliable in general than wired links.
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