TITLE:
On Security of Quantum Cryptography by Probabilistic Analysis
AUTHORS:
Jianzhong Zhao
KEYWORDS:
Quantum Cryptography, Classical Cryptography, Fundamental Equations, Unique Solution, Probability, Insecure
JOURNAL NAME:
Journal of Quantum Information Science,
Vol.12 No.4,
December
1,
2022
ABSTRACT: The existing quantum cryptography is a classical cryptography in nature and basically insecure because of its classical (conventional) bits, classical encryption algorithm and classical (public) channel. A novel topic about successful communication between the legitimate users, Alice and Bob, is discussed with probability of solution uniqueness of Bob’s decryption equation. We find, by probabilistic analysis, that success of communication between Alice and Bob is probabilistic with a probability bigger than 1/2. It is also novel to define insecurity of the quantum cryptography by probability of solution uniqueness of the search equation of Eve, the eavesdropper. The probability of Eve’s success to find the plain-text of Alice (and Bob) is greater than 1/2, and so the quantum cryptography is seriously insecure.