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<p><a href="https://gateoverflow.in/1332/gate2009-46">https://gateoverflow.in/1332/gate2009-46</a></p> <p>&nbsp;</p> <p>here in the Ist equation ....the message nd cipher text are as same as given or they should be reversed.</p>
asked in Computer Networks by Loyal (6.3k points) | 21 views
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@eyeamgj, yes, they should be reversed.

 

given that d is public key, e is private key

Let consider A wants to send Msg M to B

then A is calculate M' = Md mod n , B  is calculate M = (M')e mod n

but they give as  M' = Me mod n , B  is calculate M = (M')d mod n

 

therefore M and M' are need to interchange, otherwise M' is Plain text and M is cipher text

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