Quantum Digital Signature: Difference between revisions

*''Transferability:'' Also known as authenticity, it means that at any point a recipient (buyer) can prove it to another recipient (verifier) that the concerned message has been signed by the claimed sender (Seller).

*''Unforgeability:'' Also known as integrity, it ensures that a dishonest recipient (buyer) can neither alter a DS nor sign a message with a fake DS (DS that has not come from a genuine sender) and forward it to other recipients (verifier) successfully.  

*''Non-Repudiation:'' This property implies that at any point a dishonest sender (seller) cannot deny having signed the message sent to a genuine recipient (Buyer).