Fundamentals of Cryptography Quiz

What is the primary purpose of a hash function in cryptography?

• To encrypt data for secure transmission

• To generate a unique fixed-size output from input data

• To decrypt encrypted messages

• To create digital signatures

Which of the following is a characteristic of a good hash function?

• It is reversible

• It produces the same output for different inputs

• It is deterministic

• It requires a key for operation

What is the main purpose of a digital signature?

• To encrypt data

• To verify the authenticity and integrity of a message

• To hash data

• To generate keys

Which encryption algorithm is known for its use of a public and private key pair?

• AES

• RSA

• DES

• SHA-256

What is a cipher in the context of cryptography?

• A method for storing data

• A technique for encoding messages

• A type of digital signature

• A form of hash function

Which of the following is an example of a symmetric encryption algorithm?

• RSA

• ECC

• AES

• DSA

What does the term "cryptographic secrecy" refer to?

• The ability to hide the existence of a message

• The confidentiality of the encryption key

• The process of generating a hash

• The use of digital signatures

In cryptography, what is a key?

• A random number used for hashing

• A piece of information that determines the output of a cryptographic algorithm

• A method for decrypting messages

• A type of cipher

What does the "C" in the CIA triad stand for?

• Cryptography

• Confidentiality

• Consistency

• Complexity

Which of the following is NOT a property of a secure hash function?

• Pre-image resistance

• Collision resistance

• Reversibility

• Avalanche effect