Answered: Attackers alter the Tag (ciphertext)…

Attackers alter the Tag (ciphertext) and MAC (message authentication code) using MACs. What if I were to do this? This attack always reveals to the receiver a modified Tag or ciphertext.

LINUX+ AND LPIC-1 GDE.TO LINUX CERTIF.

5th Edition

ISBN:9781337569798

Author:ECKERT

Publisher:ECKERT

Chapter12: Network Configuration

Section: Chapter Questions

Problem 10RQ

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Concept explainers

Network Security

The word "network security" refers to a wide range of technology, devices, and processes. In its most basic form, it is a combination of rules and configurations that use both hardware and software technologies to safeguard the confidentiality, integrity, and accessibility of computer networks and data. Every company, regardless of sector, size or infrastructure, needs network security solutions to protect itself from the ever-increasing landscape of cyber threats that exist today.

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Attackers alter the Tag (ciphertext) and MAC (message authentication code) using MACs. What if I were to do this? This attack always reveals to the receiver a modified Tag or ciphertext.

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Step 1: Considerate Ciphertext Tags and Message verification Codes (MACs)

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Similar questions

An attacker may decrypt the ciphertext (message authentication code) by changing the tag or the MAC. Can you identify any issues with this plan? If this attack is successful, the victim may be able to decrypt a modified ciphertext from the original Tag.
What happens if a potential attacker tries to alter the Tag (the MAC) and the ciphertext while they are in transit, using a MAC (message authentication code)? Please elaborate on why this attack is pointless given that the receiver will detect a modified Tag/ciphertext.
When a MAC is used, an attacker attempts to change the Tag (the MAC) and the ciphertext (message authentication code). What might go wrong if I did this? If this attack is effective, the receiver will always be able to recognise a changed Tag or ciphertext.
What happens if an attacker attempts to modify the Tag (the MAC) and the ciphertext while the message is in transit while using a message authentication code (MAC)? Explain why this kind of attack will never succeed since the recipient would be able to recognise a changed tag or ciphertext.
An attacker may decrypt the ciphertext (message authentication code) by altering the tag or the MAC. Do you foresee any possible issues with this strategy? The victim may be able to read a ciphertext that has been modified from the original Tag if this attack is successful.
What happens if an attacker attempts to alter the Tag (the MAC) and the ciphertext when a message authentication code (MAC) is being used? Describe why a successful attack like this would never be possible since the recipient might detect a changed tag or ciphertext.
An attacker attempts to modify the Tag (ciphertext) and the MAC using a MAC (message authentication code). What would happen if I did that? If this attack is effective, the receiver will always be able to recognise a changed Tag or ciphertext.
What happens if an attacker attempts to alter the Tag (the MAC) and the ciphertext in transit while using a MAC (message authentication code)? Explain why this attack would always fail since the recipient will be able to identify a changed Tag/ciphertext.
An attacker attempts to change the Tag (the MAC) and the ciphertext while deploying a MAC (message authentication code). What may occur if I performed this? If this attack is effective, the receiver will always be able to recognize a changed Tag or ciphertext.
What happens if an attacker attempts to alter the Tag (the MAC) and the ciphertext while using a MAC (message authentication code) in transit? Explain why this attack will always fail since the receiver can detect a changed Tag/ciphertext.
What happens if an attacker tries to modify the Tag (the MAC) and the ciphertext in transit when employing a MAC (message authentication code)? Explain why this attack will always fail as the receiver would be able to recognise a modified Tag/ciphertext.
Using a MAC (message authentication code), what happens if an attacker attempts to tamper with the Tag (the MAC) and the ciphertext while in transit? The recipient would be able to spot a tampered Tag/ciphertext, thus please explain why this attack is futile.