What Is The Maximum Size Allowed To Perform Padding In TLS?

Which key exchange technique is not supported by SSLv3? Explanation: Fortezza is not supported in SSLv3.

Which of the following is not valid input to the PRF in SSLv3?

Which of the following is not a valid input to the PRF in SSLv3? Answer: Initialization vector, Since the PRF does not require an initialization vector. Therefore the answer is initialization vector.

What is the recommended cryptographic algorithm for the Secure Shell Transport Layer?

What is the recommended cryptographic algorithm for the Secure Shell Transport Layer? Explanation: aes 128 is the reccomended cryptographic algorithm.


Is SSH over TCP or UDP? SSH usually runs over TCP. That being said, RFC 4251 specifies that SSH transmission layer protocol “might also be used on top of any other reliable data stream”. SSH protocol’s default settings are to listen on TCP port 22 for connections.

What layer is SSH on OSI?

SSH is an application layer protocol, which is the 7th layer of the OSI model.

Which of the following alert codes does not support TLS?

Which of the following alert codes is not supported by SSLv3? Explanation: no_certificate is not supported by the SSLv3. Explanation: The overflow error is encountered when the length exceeds 214 + 2048.

What is a covert channel Mcq?

Explanation: A covert channel is the use of a protocol or communications channel in a nontraditional way.

How many combinations of keys can be constructed from a 72 ciphertext stream cipher?

9. How many combinations of keys can be constructed from a 72 ciphertext stream cipher? Explanation: For stream cipher, if there are n ciphertexts then there are n*(n−1)/2 combination of keys to be made. = 2556.

Which protocol consists of only 1 bit?

Which protocol consists of only 1 bit? Explanation: The change cipher spec protocol is bit long. 13.

How many phases are in the handshaking protocol?

Handshake Protocol divided into 4 phases:

Server Authentication and key Exchange. Client Authentication and key Exchange. Change CipherSpec and Finish.

What is known as a sandbox Mcq?

A sandbox is an isolated testing environment that enables users to run programs or open files without affecting the application, system or platform on which they run. … Cybersecurity professionals use sandboxes to test potentially malicious software.

What is difference between SSL and TLS?

Transport Layer Security (TLS) is the successor protocol to SSL. TLS is an improved version of SSL. It works in much the same way as the SSL, using encryption to protect the transfer of data and information. The two terms are often used interchangeably in the industry although SSL is still widely used.

Is TLS and https the same?

Let’s recap. HTTPS is just the HTTP protocol but with data encryption using SSL/TLS. SSL is the original and now deprecated protocol created at Netscape in the mid 90s. TLS is the new protocol for secured encryption on the web maintained by IETF.

What is the difference between a TLS connection and a TLS session?

Difference between connection and session is that connection is a live communication channel, and session is a set of negotiated cryptography parameters. … List and briefly define the parameters that define a TLS Session state. Session Identifier, Peer Certificate, Cipher Spec, Master Secret, Is Resumable. (1.

What are the two main types of covert channels?

Covert channels are generally unauthorized and hidden. And they’re used to send information in a way that violates your security policy. There are two different types of covert channels, covert timing channels and covert storage channels.

What is a covert timing channel?

Definition(s): A system feature that enables one system entity to signal information to another by modulating its own use of a system resource in such a way as to affect system response time observed by the second entity. See: covert channel.

What is covert channel problem in confinement?

From Wikipedia, the free encyclopedia. In computer security, a covert channel is a type of attack that creates a capability to transfer information objects between processes that are not supposed to be allowed to communicate by the computer security policy.

What is TLS alert?

3.4 The TLS alert protocol

The alert protocol is there to allow signals to be sent between peers. These signals are mostly used to inform the peer about the cause of a protocol failure. … An alert signal includes a level indication which may be either fatal or warning (under TLS1. 3 all alerts are fatal).

What is the significance of alert protocol in TLS?

The alert protocol is used to alert status changes to the peer. The primary use of this protocol is to report the cause of failure. Status changes include such things as error condition like invalid message received or message cannot be decrypted, as well as things like the connection has closed.

Which OSI layer is TLS?

TLS belongs to the Session Layer. The Network layer deals with addressing and routing; it can be ruled out. The Transport layer ensures end-to-end transmission by flow control and error detection and recovery.

Which OSI layer is nslookup?

Tools such as ping , nslookup , etc. all work at application layer; but as you stated, the messages are sent up and down the protocol stack to work at all layers of the OSI model.

What OSI layer is ARP?

ARP works between Layers 2 and 3 of the Open Systems Interconnection model (OSI model). The MAC address exists on Layer 2 of the OSI model, the data link layer. The IP address exists on Layer 3, the network layer.

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