Cryptography MCQs With Answers

What is the purpose of a salt in password hashing?

________ is an asymmetric encryption algorithm used for secure data transmission.

________ is a cryptographic protocol used for securing network management and monitoring.

Which key management technique uses two keys: a public key and a private key?

________ is a protocol that provides secure communication over a computer network.

________ is a type of attack where an attacker tries every possible key until the correct one is found.

What is the process of converting plaintext into ciphertext called?

________ is a cryptographic hash function commonly used in digital signatures.

What is the purpose of a cryptographic nonce?

What is the purpose of a nonce in cryptographic protocols?

________ is a process that verifies the integrity and authenticity of a message.

What type of encryption uses the same key for both encryption and decryption?

Which cryptographic algorithm is used for generating digital signatures?

________ is a type of cryptographic attack that aims to retrieve the original plaintext from a given ciphertext without knowledge of the key.

________ is a method of ensuring confidentiality by adding random data to the plaintext before encryption.

Which cryptographic protocol is used for securing database connections?

What is the primary purpose of digital signatures in cryptography?

Which cryptographic protocol is used for secure web browsing?

________ is a cryptographic protocol that provides secure communication over a network.

Which cryptographic algorithm is based on the difficulty of solving the discrete logarithm problem?

Which cryptographic attack method uses a known set of plaintext/ciphertext pairs to deduce keys?

Which cipher technique shifts the letters of the plaintext by a fixed number of positions in the alphabet?

________ is a key derivation function commonly used for securely hashing passwords.

What cryptographic technique ensures data integrity but not confidentiality?

________ is a symmetric-key encryption algorithm known for its use in securing data at rest.

Which cryptographic protocol is used for secure shell access to a remote computer?

Which encryption algorithm is known for its use in securing wireless networks (WEP and WPA)?

________ is a protocol used for securing voice over IP (VoIP) communications.

________ is an encryption mode that combines Electronic Codebook (ECB) with chaining.

What cryptographic principle states that the algorithm should remain secure even if the attacker knows how it works?

Which type of attack exploits the mathematics behind modular arithmetic in cryptography?

________ is a technique that involves hiding a message within another message.

What type of cryptographic attack targets weaknesses in the implementation of a cryptographic system?

________ is a symmetric encryption algorithm used widely in the past but now considered insecure.

________ is a process of transforming data into a fixed-size string of characters.

________ is a block cipher encryption algorithm that operates on 128-bit blocks.

________ is a cryptographic protocol used for securing email transmission.

What cryptographic technique involves rearranging the letters in the plaintext to create the ciphertext?

________ is a protocol used for securing terminal sessions.

Which cryptographic algorithm is commonly used for encryption and decryption?