History of SSL/TLS Protocols

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Questions and Answers

What is the primary purpose of the handshake phase in SSL?

  • To negotiate the protocol version and cipher suite (correct)
  • To establish a symmetric key for data transfer
  • To authenticate the client using public-key cryptography
  • To encrypt the application data

What is the main reason for the overhead in SSL compared to TCP?

  • The overhead of the record header and payload
  • The redundant version checking in the record header
  • The use of symmetric key encryption in the data transfer phase
  • The need for public-key encryption in the handshake phase (correct)

What is the purpose of the initialization vectors in the key material?

  • To encrypt the message authentication codes (MACs)
  • To decrypt the encrypted data
  • To initialize the cipher block chaining (CBC) mode (correct)
  • To provide a random seed for the symmetric key

What is the purpose of the session ID in SSL?

<p>To index the session resumption cache (C)</p> Signup and view all the answers

What is the primary application of SSL/TLS in the given scenario?

<p>Secure email communication using SMTP/SSL (C)</p> Signup and view all the answers

What is the main benefit of session resumption in SSL?

<p>Reduced overhead due to fewer handshake messages (A)</p> Signup and view all the answers

What is the main purpose of the Handshake Protocol in SSL/TLS?

<p>To establish a secure connection (B)</p> Signup and view all the answers

What is the primary function of the SSL/TLS Record Protocol?

<p>To transfer application data (A)</p> Signup and view all the answers

What is the purpose of the random number in the Client Hello message?

<p>To prevent replay attacks (A)</p> Signup and view all the answers

What is the result of combining the premaster secret and random values in SSL/TLS?

<p>Master secret (A)</p> Signup and view all the answers

What is the purpose of the Certificate Revocation List (CRL) in SSL/TLS?

<p>To ensure the certificate has not been revoked (A)</p> Signup and view all the answers

What is the primary function of the SSL/TLS Change Cipher Spec message?

<p>To switch to newly negotiated algorithms and key material (C)</p> Signup and view all the answers

What is the purpose of the SSL/TLS Finished message?

<p>To verify the integrity of the master secret (B)</p> Signup and view all the answers

What is the main difference between SSL 3.0 and TLS 1.0?

<p>SSL 3.0 is not interoperable with TLS 1.0 (D)</p> Signup and view all the answers

What is the purpose of the Client Hello message in SSL/TLS?

<p>To offer a list of supported cipher suites to the server (B)</p> Signup and view all the answers

What is the main purpose of the SSL/TLS protocol?

<p>To establish a secure connection (D)</p> Signup and view all the answers

What is the primary goal of the TLS protocol?

<p>To provide privacy and data integrity between two communicating applications (D)</p> Signup and view all the answers

What is the OSI model layer that is responsible for providing logical addressing and routing?

<p>Network layer (D)</p> Signup and view all the answers

What is the original protocol that SSL/TLS is based on?

<p>Secure Sockets Layers protocol, ver 3.0 (C)</p> Signup and view all the answers

What is the purpose of the Certification Authority (CA) in a Public Key Infrastructure (PKI)?

<p>To issue digital certificates to clients (D)</p> Signup and view all the answers

What is the layer of the OSI model that is responsible for providing error-free transfer of data between devices?

<p>Transport layer (D)</p> Signup and view all the answers

What is the first version of the SSL protocol?

<p>SSL 1.0 (D)</p> Signup and view all the answers

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