Digital Signatures Based

• Let (G,S,V) be a digital signature scheme

  • Secure Against Chosen Message Attack
  • Stateless (signature algorithm does not keep state between invocations)

Alice Bob

Aliceís Public

Verification key x

DOC

s=S(s, DOC)

(s,x)

If V(x, ,DOC)=1

Then accept

s

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