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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.

46.
Which cryptographic operation verifies data authenticity?
Medium
47.
What is the purpose of a private key?
Easy
48.
Which algorithm is best suited for mobile devices?
Medium
49.
Which protocol uses certificates for trust?
Easy
50.
Which encryption type uses the same key for encryption and decryption?
Easy
51.
What is the purpose of a certificate authority?
Easy
52.
Which algorithm is resistant to quantum attacks?
Hard
53.
Which attack involves intercepting communication?
Easy
54.
Which cryptographic function is one-way?
Easy
55.
Which algorithm is used for generating digital certificates?
Medium
56.
What does encryption protect against?
Easy
57.
Which algorithm is commonly used in blockchain hashing?
Easy
58.
What is the main goal of cryptography?
Easy
59.
Which encryption is faster for large data?
Medium
60.
Which cryptographic practice improves password security the most?
Easy
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