A sender S sends a message m to receiver R which is digitally signed by S with its private key In this scenario one or more of the following security violations can take place GATE Computer Science Engineering 2017
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A sender S sends a message m to receiver R, which is digitally signed by S with its private key. In this scenario, one or more of the following security violations can take place GATE-Computer-Science-Engineering-2017

I. S can launch a birthday attack to replace m with a fraudulent message. 
II. A third party attacker can launch a birthday attack to replace m with a fraudulent message. 
III. R can launch a birthday attack to replace m with a fraudulent message. 
 

Which of the following are possible security violations?  

(A) I and II only 
(B) I only 
(C) II only 
(D) II and III only



By:13priya

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Answers

(B) I only 

Aparna-Dasgupta

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