Q. With reference to Quantum Communication, consider the following statements:
1.Quantum communication is considered ‘Future-proof’ since no future advancements in computational power can break quantum-cryptosystems.
2.The US had successfully launched the world’s first quantum satellite.
3.The data encryption in quantum communication relies on mathematics.
Which of the statements given above is/are correct?

[A] 1 only

[B] 1 and 2 only

[C] 1 and 3 only

[D] 1, 2 and 3 only

Answer: A
Notes:

Statement 1 is correct: Since Quantum Communication uses Quantum Key Distribution (QKD), it is considered as ‘Future-proof’. This denotes no future advancements in computational power can break quantum-cryptosystems.

Statement 2 is incorrect: China had successfully launched the world’s first quantum satellite in August, 2016, dubbed as Quantum Experiments at Space Scaler (QUESS) satellite. It was nicknamed as Micius after a 5th century BC Chinese philosopher and scientist.

Statement 3 is incorrect: Typical encryption relies on traditional mathematics. But, the Quantum Communication uses physics to encrypt data. Quantum Key Distribution (QKD) is a secure communication technique that uses quantum properties of photons, the elementary particles of light, to encrypt secret keys that can be shared by two parties to protect their communications.

Source: ISRO demonstrates hack-proof quantum communication

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