Cryptography Unit 1: Attacks on Computer And Computer Security
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Questions and Answers

What is another term for symmetric key cryptography?

  • Symmetric encryption (correct)
  • Single-key encryption
  • One-key encryption
  • Dual-key encryption

Which type of cryptography uses two keys for encryption and decryption?

  • Stream ciphers
  • Block ciphers
  • Public cryptography
  • Asymmetric cryptography (correct)

What is the key difference between symmetric and asymmetric cryptography?

  • Key interchangeability
  • Number of keys used (correct)
  • Security level
  • Speed of encryption

Which type of cryptography is generally slower but more secure?

<p>Asymmetric cryptography (C)</p> Signup and view all the answers

In stream ciphers, how does the key behave during encryption?

<p>Changes constantly (C)</p> Signup and view all the answers

Which type of key is not revealed in asymmetric cryptography?

<p>Private key (A)</p> Signup and view all the answers

What is the characteristic of the public key in asymmetric cryptography?

<p>Interchangeable between users (B)</p> Signup and view all the answers

Which type of cryptography works on a single bit at a time?

<p>Stream ciphers (B)</p> Signup and view all the answers

What is a characteristic of the private key in asymmetric cryptography?

<p>Used for decryption only (D)</p> Signup and view all the answers

What aspect of encryption does asymmetric cryptography rely on?

<p>Public and private keys (D)</p> Signup and view all the answers

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