Module 14: Cryptography and Encryption

What is cryptography primarily used for?

• Storing large amounts of data

• Enhancing user interface designs

• Transforming information into an unreadable format for unauthorized parties

• Backing up files

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

• Symmetric cryptography

• Asymmetric cryptography

• Digital signatures

• Hashing

In asymmetric cryptography, which key is used for decryption?

• Public key

• Private key

• Hash key

• Session key

Which algorithm is the most commonly used for symmetric encryption?

• RSA

• SHA-256

• AES

• MD5

What is one of the main purposes of cryptography in secure communication?

• Securing email, messaging, and VPNs

• Increasing server speed

• Optimizing search engines

• Compressing large files

Which algorithm is commonly used for asymmetric encryption?

• AES

• RSA

• DES

• Blowfish

What does encryption convert readable data into?

• Plaintext

• Decrypted text

• Hash value

• Ciphertext

Which of the following is NOT an application of cryptography?

• Digital signatures

• Secure authentication

• Compressing files

• Data storage

What is a brute-force attack in the context of cryptography?

• An attack that attempts to guess the encryption key by trying all possible combinations

• An attack that installs malware on the system

• An attack that steals the private key using social engineering

• An attack that intercepts communications directly

What should be used alongside cryptography for a more comprehensive security solution?

• Firewalls and access controls

• Compression algorithms

• Virus scanning software

• Blockchain technology