The RSA Algorithm uses which mathematical concept as the basis of its encryption?

The correct answer is D. Two large prime numbers. RSA security is based on the practical difficulty of factoring the product of two large prime numbers. During key generation, two large primes (p and q) are selected and multiplied together to produce n (the modulus), which is made public. The security relies on the fact that whi

Submitted by khalil_dz· Apr 18, 2026Cryptography

Question

Options

AGeometry
B16-round ciphers
CPI (3.14159...)
DTwo large prime numbers

How the community answered

(48 responses)

B
2% (1)
C
4% (2)
D
94% (45)

Explanation

RSA security is based on the practical difficulty of factoring the product of two large prime numbers. During key generation, two large primes (p and q) are selected and multiplied together to produce n (the modulus), which is made public. The security relies on the fact that while multiplying two primes is computationally trivial, factoring their product back into the original primes is computationally infeasible for sufficiently large numbers (typically 2048 bits or more today). This asymmetry between easy multiplication and hard factorization is what makes RSA work.

Topics

#RSA Algorithm#Asymmetric Cryptography#Prime Numbers#Cryptographic Principles

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