Asymmetric Encryption (Security+) Quiz: RSA, ECC & Diffie-Hellman

1. What is the primary purpose of a Certificate Authority (CA) in asymmetric encryption?

To generate random numbers for key creation

To verify and authenticate public keys

To encrypt all data in transit

To perform key escrow for law enforcement

Submit

6. Which asymmetric algorithm is specifically designed for digital signatures and is part of the DSA family?

RSA

Elliptic Curve Digital Signature Algorithm (ECDSA)

Diffie-Hellman

AES

7. The forward secrecy property in key exchange ensures which of the following?

Session keys remain secret even if long-term keys are compromised

All past communications are automatically encrypted

The public key cannot be used to decrypt future messages

Private keys never need to be stored securely

8. What happens if an attacker obtains your RSA private key?

They can decrypt messages intended for you

They can create forged digital signatures

Both A and B

Neither A nor B, the key is useless without the public key

9. In the RSA encryption process, plaintext is encrypted using which key?

The private key

The public key

A symmetric session key

A randomly generated ephemeral key

10. Which algorithm is considered vulnerable to attacks from quantum computers?

AES-256

SHA-256

RSA and ECC

HMAC

11. In RSA encryption, which two mathematical operations form the basis of the algorithm?

Prime factorization and modular exponentiation

Elliptic curve operations and hash functions

Diffie-Hellman exchange and symmetric keys

AES encryption and key derivation

12. In ECC, the security strength depends on which property?

The size of the prime modulus

The difficulty of the elliptic curve discrete logarithm problem

The number of iterations in the algorithm

The length of the hash function output

13. Which of the following is a characteristic of digital signatures created with asymmetric encryption?

Only the sender can verify the signature

Only the sender can create the signature

Both parties must share the same private key

The signature changes with every verification

14. What cryptographic problem does RSA security depend on?

Discrete logarithm problem

Integer factorization problem

Elliptic curve discrete logarithm

Hash collision problem

15. In Diffie-Hellman, what are 'g' and 'p' used for?

Generating private keys

Public parameters known to all parties

Encrypting the final shared secret

Verifying digital signatures

16. The Diffie-Hellman key exchange allows two parties to establish a shared secret over what type of channel?

Encrypted channel only

Secure, authenticated channel

Insecure, public channel

Direct, in-person meeting

17. Elliptic Curve Cryptography (ECC) provides equivalent security to RSA with which of the following?

Larger key sizes

Significantly smaller key sizes

Identical key sizes

Variable key sizes depending on the curve

18. What does the variable 'd' represent in RSA cryptography?

The public exponent

The private exponent

The modulus

The prime factor

19. In RSA, the public key consists of which two components?

N and d

E and d

N and e

P and q

20. What is the primary advantage of asymmetric encryption over symmetric encryption?

Faster computation speed

No need to share secret keys in advance

Smaller key sizes

Immunity to brute-force attacks

Asymmetric Crypto Quiz: Can You Master RSA, ECC & Diffie-Hellman?