Cryptography and Security Quiz

Which of the following is an asymmetric encryption algorithm?

• AES

• RSA

• DES

• Blowfish

What is the purpose of a digital signature in cryptography?

• To verify the authenticity and integrity of a message

• To encrypt the message content

• To ensure confidentiality of the data

• To provide a hash value for the message

Which algorithm is used in the SSL/TLS protocols for securing communications over the internet?

• RSA

• AES

• SHA-256

• DES

What is a key difference between symmetric and asymmetric encryption?

• Symmetric uses two keys, and asymmetric uses one key.

• Symmetric encryption is slower than asymmetric encryption.

• Symmetric encryption uses the same key for both encryption and decryption.

• Asymmetric encryption is faster and more efficient.

Which of the following hashing algorithms is commonly used in blockchain technology?

• MD5

• SHA-256

• AES

• RSA

What does the term "salt" refer to in cryptographic hash functions?

• A random value added to input before hashing to ensure uniqueness

• A secret key used for encryption

• A method to increase the length of the hash

• A protocol used to encrypt the hash

Which of the following protocols ensures secure communication over a network?

• FTP

• HTTPS

• SMTP

• SNMP

Which cryptographic method is used to securely exchange keys between two parties?

• RSA

• Diffie-Hellman key exchange

• AES

• SHA-256

Which of the following is a common vulnerability found in software applications?

• SQL Injection

• Man-in-the-middle attack

• Cross-site scripting (XSS)

• Both a and c

What is the main purpose of a buffer overflow attack?

• To crash the software application

• To gain unauthorized access to system memory

• To overload the network traffic

• To encrypt sensitive data