Cryptography (Security+) Quiz: Symmetric, Asymmetric & Hashing

1. What does a digital signature provide?

Encryption of sensitive data

Authentication and non-repudiation

Key distribution

Data compression

Submit

3. What is the minimum recommended key length for RSA encryption today?

512 bits

1024 bits

2048 bits

4096 bits

4. True or False: A hash function is deterministic, always producing the same output for the same input.

True

False

Submit

7. Which protocol uses both symmetric and asymmetric encryption?

HTTP

TLS/SSL

FTP

SMTP

8. What is the main advantage of asymmetric encryption over symmetric?

Faster processing speed

No need to securely exchange keys

Smaller key sizes

Better for real-time applications

9. True or False: Symmetric encryption is faster than asymmetric encryption.

True

False

10. Which of the following is considered cryptographically weak for passwords?

SHA-256

Bcrypt

MD5

PBKDF2

11. Which encryption method uses the same key for both encryption and decryption?

Asymmetric encryption

Symmetric encryption

Public key infrastructure

Digital signature

12. True or False: RSA is a symmetric encryption algorithm.

True

False

13. Which cryptographic method requires a secure channel to exchange the encryption key?

Asymmetric encryption

Digital signatures

Symmetric encryption

Hashing

14. What is the key length of AES-256?

128 bits

192 bits

256 bits

512 bits

15. True or False: A hash function can be easily reversed to retrieve the original data.

True

False

16. Which of the following is a cryptographic hash function?

RSA

SHA-256

3DES

Diffie-Hellman

17. What is the primary purpose of a hashing function?

To encrypt data for transmission

To create a fixed-length fingerprint of data

To generate public keys

To manage key distribution

18. Which algorithm is commonly used for asymmetric encryption?

SHA-256

RSA

MD5

Blowfish

19. In asymmetric encryption, what is publicly shared with others?

Private key

Public key

Shared secret

Master key

20. AES and DES are examples of what type of encryption?

Asymmetric

Hashing

Symmetric

One-way

Cryptography Quiz: Do You Know Symmetric, Asymmetric & Hashing?

1. What does a digital signature provide?

2.

What first name or nickname would you like us to use?

2. HMAC (Hash-based Message Authentication Code) combines hashing with a ____ for authentication.

3. What is the minimum recommended key length for RSA encryption today?

4. True or False: A hash function is deterministic, always producing the same output for the same input.

5. The Diffie-Hellman algorithm is primarily used for secure ____ exchange.

6. A hash collision occurs when two different inputs produce the same ____.

7. Which protocol uses both symmetric and asymmetric encryption?

8. What is the main advantage of asymmetric encryption over symmetric?

9. True or False: Symmetric encryption is faster than asymmetric encryption.

10. Which of the following is considered cryptographically weak for passwords?

11. Which encryption method uses the same key for both encryption and decryption?

12. True or False: RSA is a symmetric encryption algorithm.

13. Which cryptographic method requires a secure channel to exchange the encryption key?

14. What is the key length of AES-256?

15. True or False: A hash function can be easily reversed to retrieve the original data.

16. Which of the following is a cryptographic hash function?

17. What is the primary purpose of a hashing function?

18. Which algorithm is commonly used for asymmetric encryption?

19. In asymmetric encryption, what is publicly shared with others?

20. AES and DES are examples of what type of encryption?