Asymmetric Encryption: Public Key Cryptography and RSA Algorithm
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Questions and Answers

What is another name for Asymmetric Encryption?

  • Public key algorithms (correct)
  • Private key encryption
  • Symmetric key encryption
  • Hash functions
  • How many keys are used in Asymmetric Encryption to encrypt and decrypt the plain text?

  • Four keys
  • Three keys
  • Two keys (correct)
  • One key
  • In the analogy provided, who uses the public key for encryption?

  • Medium
  • Kebede
  • Abebe (correct)
  • Algorithm
  • How many keys does the user have in Asymmetric Encryption?

    <p>Two keys</p> Signup and view all the answers

    What is required to decrypt a message encrypted using the public key in Asymmetric Encryption?

    <p>The private key</p> Signup and view all the answers

    Why are asymmetric algorithms designed with different keys for encryption and decryption?

    <p>To enhance security</p> Signup and view all the answers

    What is the purpose of the Diffie-Hellman algorithm?

    <p>To exchange a secret key securely</p> Signup and view all the answers

    In asymmetric algorithms, what is the usual key length range?

    <p>512 to 2048 bits</p> Signup and view all the answers

    What are the system parameters in the Diffie-Hellman protocol?

    <p>p and g</p> Signup and view all the answers

    Why are asymmetric algorithms relatively slow?

    <p>They involve complex computational problems such as factoring large numbers and computing discrete logarithms</p> Signup and view all the answers

    What problem does the Diffie-Hellman algorithm rely on for its security?

    <p>Computing discrete logarithms of large numbers</p> Signup and view all the answers

    What are the steps involved in the Diffie-Hellman key exchange?

    <p>Agree on global public elements, exchange public values, compute the shared secret key</p> Signup and view all the answers

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