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1 votes
1 votes
For non-repudiation protocol of network security, which of the following statements is or are true ?

1) the receiver can verify the claimed identity of the sender

2) sender cannot later repudiate the contents of the message

3)the receiver cannot possibly have concocted the message himself

 

A) all the above

B) 1 and 3 only

C) 2 and 3 only

D)2 only

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