Certified Incident Handler (ECIH) — Question 30

Paul, a computer user, has shared information with his colleague using an online application. The online application used by Paul has been incorporated with the latest encryption mechanism. This mechanism encrypts data by using a sequence of photons that have a spinning trait while traveling from one end to another, and these photons keep changing their shapes during their course through filters: vertical, horizontal, forward slash, and backslash.
Identify the encryption mechanism demonstrated in the above scenario.

Answer options

• A. Quantum cryptography
• B. Homomorphic encryption
• C. Rivest Shamir Adleman encryption
• D. Elliptic curve cryptography

Correct answer: A

Explanation

The correct answer is Quantum cryptography, as it specifically involves the use of photons and their properties for secure communication. Homomorphic encryption allows computation on encrypted data, while Rivest Shamir Adleman encryption is a type of public key encryption, and Elliptic curve cryptography is based on elliptic curves, none of which describe the photon-based mechanism mentioned.