SSL: Secured Socket Layer Background and Checking in Browsers

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What is SSL?

A new web browser developed by Netscape in 1994
A new version of the Transport Layer Security Protocol (TLS)
A type of encryption algorithm used for securing data
A communication protocol for securing web browser and server communications (correct)

Which organization developed the Secure Sockets Layer Protocol (SSL) in 1994?

Microsoft
Apple
Google
Netscape (correct)

What is the latest version of the SSL protocol based on?

TLS Version 1.0 with SSL Version 3.0 compatibility
SSL Version 3.0
SSL Version 1.0
TLS Version 1.0 (correct)

What does SSL ensure between a web server and browsers?

Privacy and integrity of data passed between them (D) Signup and view all the answers

What is the main purpose of SSL in a web browser?

To establish an encrypted link between a web server and the browser (D) Signup and view all the answers

What type of encryption algorithm is used for encrypting sensitive data in SSL?

DES and RSA algorithm (B) Signup and view all the answers

In the SSL protocol, what is the purpose of Phase 1?

To agree on encryption algorithms between the client and server (A) Signup and view all the answers

What is the main function of a certificate in the SSL protocol during Phase 2?

To authenticate the server to the client (B) Signup and view all the answers

What happens during the SSL protocol Phase 3?

Client generates a pre-master key and sends it to the server (B) Signup and view all the answers

What is the purpose of generating a master key in SSL key generation process?

To create cipher keys for secure communication (B) Signup and view all the answers

During SSL data transmission, what does the MAC (message integrity) ensure?

Data authenticity (D) Signup and view all the answers

What is the purpose of a certificate containing an RSA public key in SSL protocol Phase 2?

To eliminate separate public key exchange between client and server (D) Signup and view all the answers

What happens if no certificate containing a public key is available in SSL protocol Phase 2?

Server passes Diffie-Hellman key exchange parameters instead (C) Signup and view all the answers

What is the role of compression algorithms in SSL data transmission?

To reduce the size of data blocks before hashing (A) Signup and view all the answers

How are preferred encryption algorithms communicated between client and server in SSL protocol Phase 1?

By passing them in the https request (B) Signup and view all the answers

"What is the significance of CA's public key in SSL certificate validation?"

"To validate the authenticity of the server's certificate" (A) Signup and view all the answers

In symmetric-key cryptography, what is the primary challenge for two parties?

Distributing the shared secret key (C) Signup and view all the answers

What is the role of a Key-Distribution Center (KDC) in symmetric-key cryptography?

Distributing the shared secret key to parties (C) Signup and view all the answers

What type of keys does a KDC create for each member in symmetric-key cryptography?

Session keys for secure communication (C) Signup and view all the answers

What is the primary advantage of symmetric-key cryptography over asymmetric-key cryptography for enciphering large messages?

Efficiency in message encryption (A) Signup and view all the answers

What is the main purpose of a Public-Key Infrastructure (PKI) in symmetric-key cryptography?

Verifying digital certificates (D) Signup and view all the answers

Why is a shared secret key needed in symmetric-key cryptography?

To encrypt and decrypt messages between parties (C) Signup and view all the answers

In Kerberos, what is the purpose of the Trusted Third Party (TTP)?

It knows all passwords and can grant access to any server (D) Signup and view all the answers

What is the main drawback of the naïve solution where every server knows every user’s password in network authentication?

Compromise of one server results in compromising all users (D) Signup and view all the answers

What issue does the Kerberos protocol aim to address?

Eliminating the need for a single point of failure in authentication (C) Signup and view all the answers

What is the role of the Authentication Server (AS) in the Kerberos protocol?

Granting tickets to users for accessing network services (C) Signup and view all the answers

What is the primary advantage of using Kerberos for user authentication on a network?

Eliminating the need for a single point of failure in authentication (D) Signup and view all the answers

What does the term 'Single Logon' authentication refer to in the context of Kerberos?

User only needs to obtain an encrypted ticket once for all network services (C) Signup and view all the answers

What is the drawback of sending passwords in plaintext during authentication?

Risk of compromise if intercepted by unauthorized parties (B) Signup and view all the answers

How does Kerberos ensure that users do not need to send their passwords each time they access network services?

By using a single logon approach with encrypted tickets (C) Signup and view all the answers

What is the primary purpose of the Trusted Third Party (TTP) in Kerberos?

To eliminate the need for a single point of failure in authentication (A) Signup and view all the answers

What is the key advantage of 'Single Logon' authentication in Kerberos?

Users only need to obtain an encrypted ticket once, instead of entering passwords frequently (D) Signup and view all the answers