Description: In view of the security flaws in the non-repudiation of l-l-c-z threshold agents, an improved threshold agent is proposed
For the password analysis of l-l-c-z threshold agent, the method of changing public key is used to calculate the effective forgery result of any message
A new improved protocol is presented with a new improved protocol in the form of a shortened digital signature standard (SDSS) security technology, as well as a technology that validates the signing of the results through a public key
The analysis results show that with L - L - C - Z compared threshold proxy signature secret agreement, the improved threshold proxy signature secret agreement to withstand the receiver public key substitution attack. The improved threshold proxy signature using the receiver public key instead of the private key secret agreement to verify the sign close as a result, the validation process can open to a third party.
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