Cryptographic Concepts Quiz

Digital signature provides(any 3)

• Confidentiality

• Integrity

• Authentication

• Non-repudiation

• Authorization

Examples of key stretching algorithms include:

• ROT13

• bcrypt

• PBKDF2

• Twofish

• DSA

Pseudo-random data added to a password before hashing is called:

• IV

• seed

• Salt

• Shim

Answer explanation

Salting

What are the characteristic features of Elliptic Curve Cryptography (ECC)?

• Larger key sizes, slower computations, weak security
• Complex implementation, high resource usage, low efficiency
• Limited compatibility, high cost, low flexibility
• Vulnerable to quantum attacks, outdated technology, low adoption
• Smaller key sizes, faster computations, strong security

An asymmetric encryption key designed to be used only for a single session or transaction is known as:

• session key
• ephemeral key
• temporary key
• unique key

What are the characteristic features of a session key?

• Dynamic, pre-determined, used for a single communication session
• Permanent, manually generated, used for multiple communication sessions
• Temporary, randomly generated, used for a single communication session
• Randomly generated, stored permanently, used for authentication

A type of encryption scheme where the same key is used to encrypt and decrypt data is referred to as:

• Public key encryption
• Symmetric encryption
• Asymmetric encryption
• One-time pad

Which of the following terms illustrate the security through obscurity concept?

• Code obfuscation

• Steganography

• SSID broadcast suppression

• Encryption

What is the purpose of steganography?

• To encrypt data using a secure algorithm
• To increase the font size of text
• To organize files in a computer system
• To conceal messages or information within other non-secret text or data.

Which of the following terms applies to the concept of confidentiality?

• Privacy breach
• Information sharing
• Data protection
• Translation