Cryptography and Cybersecurity Quiz

What is cryptography in the context of cybersecurity?

• The process of converting plaintext into ciphertext

• The study of secure communication techniques

• The art of breaking encrypted messages

• The management of encryption keys

Which term describes the original, readable message before encryption?

• Ciphertext

• Algorithm

• Plaintext

• Hash value

What is the primary purpose of cryptanalysis?

• Creating encryption algorithms

• Managing encryption keys

• Generating digital signatures

• Breaking encryption systems

In cryptography, what is symmetric encryption?

• Using different keys for encryption and decryption

• Using the same key for encryption and decryption

• Using public keys only

• Using multiple keys simultaneously

What defines key length in cryptography?

• The physical size of the encryption key

• The time required to generate a key

• The number of bits in the key

• The complexity of the algorithm

What is a distinguishing feature of asymmetric encryption?

• It uses mathematically related key pairs

• It's faster than symmetric encryption

• It requires only one key

• It always uses 128-bit keys

Which describes a public key's primary function?

• Decrypting sensitive messages

• Signing digital documents

• Encrypting messages

• Generating hash values

What is the main purpose of hashing in cryptography?

• Message compression

• Data integrity verification

• Key generation

• Message encryption

What characterizes SHA (Secure Hash Algorithm)?

• It produces variable-length outputs

• It's reversible

• It produces fixed-length outputs

• It requires a encryption key

What is MD5's primary limitation?

• Too slow for modern use

• Vulnerable to collision attacks

• Requires too much processing power

• Limited to small files