Confidentiality: When the original plaintext message cannot be determined by an attacker, who intercepts the cipher text-encryption, the message is said to be confidential. Message Integrity: When the receiver can detect whether the message sent is encrypted or not or was altered in transit, the property is said to be message integrity.

Question

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Answer 1

Question

Chapter 8, Problem R1RQ

Program Plan Intro

Confidentiality:

When the original plaintext message cannot be determined by an attacker, who intercepts the cipher text-encryption, the message is said to be confidential.

Message Integrity:

When the receiver can detect whether the message sent is encrypted or not or was altered in transit, the property is said to be message integrity.

Expert Solution & Answer

Explanation of Solution

Difference between message confidentiality and message integrity:

Some of the difference between message confidentiality and message integrity are mentioned below:

Message Confidentiality	Message Integrity
In message confidentiality, two or more hosts communicate securely, typically using encryption	In message integrity, the message transported has not been tampered with or altered
In message confidentiality, communication cannot be monitored (sniffed) by untrusted hosts and the communication between the two parties is confidential.	A message has integrity only when the payload sent is the same as the payload received.

Confidentiality without integrity:

“Yes”, one can have confidentiality without integrity as sending a message confidentially does not guarantee data integrity. Although when two nodes have authenticated each other, the integrity of a message between them could be compromised during the transmission of a message.

Integrity without Confidentiality:

“Yes”, one can have integrity without confidentiality as a message that is altered in transit and is detected might have been sent in plaintext and thus would not be confidential.

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Students have asked these similar questions

What are the differences between message confidentiality and message integrity? Can you have confidentiality without integrity? Can you have integrity without confidentiality? Justify your answer.

Is it possible to apply message secrecy and message integrity security to the same message? Why do you think it is?

Assuming I have a very important not confidential message to send to a friend, which means that I do not care whether the massage is seen by others or not, my aim is to get it to my friend with its integrity ensured. Outline the mechanisms and procedures you would go through to deliver this message securely.

Answer 2

Question

Chapter 8, Problem R1RQ

Program Plan Intro

Confidentiality:

When the original plaintext message cannot be determined by an attacker, who intercepts the cipher text-encryption, the message is said to be confidential.

Message Integrity:

When the receiver can detect whether the message sent is encrypted or not or was altered in transit, the property is said to be message integrity.

Expert Solution & Answer

Explanation of Solution

Difference between message confidentiality and message integrity:

Some of the difference between message confidentiality and message integrity are mentioned below:

Message Confidentiality	Message Integrity
In message confidentiality, two or more hosts communicate securely, typically using encryption	In message integrity, the message transported has not been tampered with or altered
In message confidentiality, communication cannot be monitored (sniffed) by untrusted hosts and the communication between the two parties is confidential.	A message has integrity only when the payload sent is the same as the payload received.

Confidentiality without integrity:

“Yes”, one can have confidentiality without integrity as sending a message confidentially does not guarantee data integrity. Although when two nodes have authenticated each other, the integrity of a message between them could be compromised during the transmission of a message.

Integrity without Confidentiality:

“Yes”, one can have integrity without confidentiality as a message that is altered in transit and is detected might have been sent in plaintext and thus would not be confidential.

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Answer 3

Question

Chapter 8, Problem R1RQ

Program Plan Intro

Confidentiality:

When the original plaintext message cannot be determined by an attacker, who intercepts the cipher text-encryption, the message is said to be confidential.

Message Integrity:

When the receiver can detect whether the message sent is encrypted or not or was altered in transit, the property is said to be message integrity.

Expert Solution & Answer

Explanation of Solution

Difference between message confidentiality and message integrity:

Some of the difference between message confidentiality and message integrity are mentioned below:

Message Confidentiality	Message Integrity
In message confidentiality, two or more hosts communicate securely, typically using encryption	In message integrity, the message transported has not been tampered with or altered
In message confidentiality, communication cannot be monitored (sniffed) by untrusted hosts and the communication between the two parties is confidential.	A message has integrity only when the payload sent is the same as the payload received.

Confidentiality without integrity:

“Yes”, one can have confidentiality without integrity as sending a message confidentially does not guarantee data integrity. Although when two nodes have authenticated each other, the integrity of a message between them could be compromised during the transmission of a message.

Integrity without Confidentiality:

“Yes”, one can have integrity without confidentiality as a message that is altered in transit and is detected might have been sent in plaintext and thus would not be confidential.

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Answer 4

Question

Chapter 8, Problem R1RQ

Program Plan Intro

Confidentiality:

When the original plaintext message cannot be determined by an attacker, who intercepts the cipher text-encryption, the message is said to be confidential.

Message Integrity:

When the receiver can detect whether the message sent is encrypted or not or was altered in transit, the property is said to be message integrity.

Expert Solution & Answer

Explanation of Solution

Difference between message confidentiality and message integrity:

Some of the difference between message confidentiality and message integrity are mentioned below:

Message Confidentiality	Message Integrity
In message confidentiality, two or more hosts communicate securely, typically using encryption	In message integrity, the message transported has not been tampered with or altered
In message confidentiality, communication cannot be monitored (sniffed) by untrusted hosts and the communication between the two parties is confidential.	A message has integrity only when the payload sent is the same as the payload received.

Confidentiality without integrity:

“Yes”, one can have confidentiality without integrity as sending a message confidentially does not guarantee data integrity. Although when two nodes have authenticated each other, the integrity of a message between them could be compromised during the transmission of a message.

Integrity without Confidentiality:

“Yes”, one can have integrity without confidentiality as a message that is altered in transit and is detected might have been sent in plaintext and thus would not be confidential.

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Answer 5

Chapter 8, Problem R1RQ

Program Plan Intro

Confidentiality:

When the original plaintext message cannot be determined by an attacker, who intercepts the cipher text-encryption, the message is said to be confidential.

Message Integrity:

When the receiver can detect whether the message sent is encrypted or not or was altered in transit, the property is said to be message integrity.

Expert Solution & Answer

Explanation of Solution

Difference between message confidentiality and message integrity:

Some of the difference between message confidentiality and message integrity are mentioned below:

Message Confidentiality	Message Integrity
In message confidentiality, two or more hosts communicate securely, typically using encryption	In message integrity, the message transported has not been tampered with or altered
In message confidentiality, communication cannot be monitored (sniffed) by untrusted hosts and the communication between the two parties is confidential.	A message has integrity only when the payload sent is the same as the payload received.

Confidentiality without integrity:

“Yes”, one can have confidentiality without integrity as sending a message confidentially does not guarantee data integrity. Although when two nodes have authenticated each other, the integrity of a message between them could be compromised during the transmission of a message.

Integrity without Confidentiality:

“Yes”, one can have integrity without confidentiality as a message that is altered in transit and is detected might have been sent in plaintext and thus would not be confidential.

Answer 6

Chapter 8, Problem R1RQ

Program Plan Intro

Confidentiality:

When the original plaintext message cannot be determined by an attacker, who intercepts the cipher text-encryption, the message is said to be confidential.

Message Integrity:

When the receiver can detect whether the message sent is encrypted or not or was altered in transit, the property is said to be message integrity.

Expert Solution & Answer

Explanation of Solution

Difference between message confidentiality and message integrity:

Some of the difference between message confidentiality and message integrity are mentioned below:

Message Confidentiality	Message Integrity
In message confidentiality, two or more hosts communicate securely, typically using encryption	In message integrity, the message transported has not been tampered with or altered
In message confidentiality, communication cannot be monitored (sniffed) by untrusted hosts and the communication between the two parties is confidential.	A message has integrity only when the payload sent is the same as the payload received.

Confidentiality without integrity:

“Yes”, one can have confidentiality without integrity as sending a message confidentially does not guarantee data integrity. Although when two nodes have authenticated each other, the integrity of a message between them could be compromised during the transmission of a message.

Integrity without Confidentiality:

“Yes”, one can have integrity without confidentiality as a message that is altered in transit and is detected might have been sent in plaintext and thus would not be confidential.

Answer 7

Chapter 8, Problem R1RQ

Program Plan Intro

Confidentiality:

When the original plaintext message cannot be determined by an attacker, who intercepts the cipher text-encryption, the message is said to be confidential.

Message Integrity:

When the receiver can detect whether the message sent is encrypted or not or was altered in transit, the property is said to be message integrity.

Answer 8

Expert Solution & Answer

Explanation of Solution

Difference between message confidentiality and message integrity:

Some of the difference between message confidentiality and message integrity are mentioned below:

Message Confidentiality	Message Integrity
In message confidentiality, two or more hosts communicate securely, typically using encryption	In message integrity, the message transported has not been tampered with or altered
In message confidentiality, communication cannot be monitored (sniffed) by untrusted hosts and the communication between the two parties is confidential.	A message has integrity only when the payload sent is the same as the payload received.

Confidentiality without integrity:

“Yes”, one can have confidentiality without integrity as sending a message confidentially does not guarantee data integrity. Although when two nodes have authenticated each other, the integrity of a message between them could be compromised during the transmission of a message.

Integrity without Confidentiality:

“Yes”, one can have integrity without confidentiality as a message that is altered in transit and is detected might have been sent in plaintext and thus would not be confidential.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Ch. 8 - Prob. R1RQ Ch. 8 - Prob. R2RQ Ch. 8 - Prob. R3RQ Ch. 8 - Prob. R4RQ Ch. 8 - Prob. R5RQ Ch. 8 - Prob. R6RQ Ch. 8 - Prob. R7RQ Ch. 8 - Prob. R8RQ Ch. 8 - Prob. R9RQ Ch. 8 - Prob. R10RQ

Explanation of Solution

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Chapter 8 Solutions