Ann, a security administrator, needs to implement a transport encryption solution that will enable her to detect attempts to sniff packets. Which of the following could
be implemented?
A.
Eliptical curve algorithms
B.
Ephemeral keys
C.
Quantum cryptography
D.
Steganography
Quantum cryptography uses physics instead of mathematics to encode messages, which provides greater security.
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Provide greater security, yes; but how does quantum detect sniffing attempts?
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For those who’s like me, not knowing fully how QKD works, here’s in brief how it uses physics.
“An important and unique property of quantum key distribution is the ability of the two communicating users to detect the presence of any third party trying to gain knowledge of the key. ” -https://en.wikipedia.org/wiki/Quantum_key_distribution
“Quantum cryptography uses the properties of light to create effectively unbreakable encryption. Any attempt to tap in affects the signal and can be instantly detected. “-https://www.theverge.com/2013/9/6/4701118/scientists-reveal-new-breakthrough-in-uncrackable-quantum-cryptography
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