COMPUTER FUNDAMENTALS

Detailed explanation-1: -Quantum cryptography is different from traditional cryptographic systems in that it relies on physics, rather than mathematics, as the key aspect of its security model. Quantum cryptography is a system that is completely secure against being compromised without the knowledge of the message sender or the receiver.

Detailed explanation-2: -Quantum computers are machines that use the properties of … quantum physics to store data and perform computations. This can be extremely advantageous for certain tasks where they could vastly outperform even our best supercomputers.

Detailed explanation-3: -Post-quantum cryptography, also known as quantum-proof cryptography, aims to create encryption methods that cannot be broken by algorithms, or calculations, that run on future quantum computers. Today’s encryption methods will not necessarily remain secure if and when quantum computers become a reality.

Detailed explanation-4: -General background: Quantum computing (theory) is at the intersection of math, physics and computer science. (Experiment also can involve electrical engineering.)

Detailed explanation-5: -In the context of cryptography this means that sender and receiver can produce between them shared outcomes through entangled quantum systems, without a third party being able to secretly gain knowledge about these outcomes. Any eavesdropping leaves traces that clearly flag the intrusion.