Define Undeniable Signature Scheme
Define Undeniable Signature Scheme?
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Undeniable signature scheme, introduced by Chaum and van Antwerpen, are non-self-authenticating signature schemes, here signatures can only be confirmed with the signer's consent. Though, when a signature is only demonstrable with the help of a signer, the dishonest signer might refuse to authenticate a genuine document. Undeniable signatures resolve this trouble by adding up a new component termed as the disavowal protocol in adding up to the normal components of verification and signature.
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Throws clause: It is a clause in a method header pointing that one or additional exceptions will be propagated from this technique. For example: public int find(String s) throws NotFoundExc
Native method: In native method, the method is written in a language other than Java, however accessible to a Java program. Native methods are far away from the scope of this definition.
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