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Cryptography Objective Questions and Answers

Practice cryptography objective questions with answers and detailed explanations. Covers AES, RSA, hashing, HMAC, JWT, encryption standards and security basics.

This cryptography quiz contains carefully curated objective questions with correct answers and clear explanations. It is designed for developers, security learners, and interview preparation, covering modern encryption, hashing, authentication, and security best practices.

Practice Cryptography MCQs with Detailed Explanations

Answer at least 12 questions to submit.

31.
Which attack targets encrypted data patterns?
Hard
32.
Which function converts plaintext into ciphertext?
Easy
33.
What does RSA stand for?
Easy
34.
Which algorithm is suitable for hashing large files?
Easy
35.
Which cryptographic tool hides data inside images?
Easy
36.
Which algorithm provides both encryption and authentication?
Medium
37.
Which algorithm is recommended over MD5 for hashing?
Easy
38.
What is the purpose of a nonce?
Medium
39.
Which algorithm is commonly used for secure APIs?
Medium
40.
Which cryptographic property ensures secrecy?
Easy
41.
Which attack attempts all possible keys?
Easy
42.
Which cryptographic algorithm is used for signing JWTs?
Medium
43.
Which algorithm provides forward secrecy?
Hard
44.
What does ECC offer compared to RSA?
Medium
45.
Which algorithm should NOT be used for password storage?
Easy
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