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Digital signature is extensively used in many practical applications as numerous cryptographic services have been proposed. In this paper, the authors will be the first to propose a signature scheme that integrates the following properties. It is a distributed RSA-type multi-signature. It is a blind and weakly undeniable signature. The modulus used by each participant cosigner is identical. Its signature form is identical to that of a standard RSA signature. The length of the signature is independent of the number of participant cosigners. "Zero-knowledge undeniable signatures" is applied to execute the confirmation/disavowal protocols. "The Gap-Problem" is used to solve the forgery problems. A multi-signature distributes the authority and responsibility of the signer among a set of cosigners with efficiency.
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