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Digital Signature Algorithm

Digital Signature Algorithm

Question Description

I’m working on a cyber security discussion question and need an explanation and answer to help me learn.

The  DSA  digital  signature  scheme  discussed  in  class  employs  global  public-key

components and an individual secret key. For every message to sign DSA also requires an integer

k. Why does k have to be random and unique to every signing?  Explain specifically what can go 
wrong if it is not random or not unique respectively (so you should discuss these  two scenarios 
separately). 

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