The Application Research Of Zero-knowledge Proof-based XML Multiple Figure Digital Signature In Electronic Official Document.

Today, network is becoming more and more prosperous, the safety problem has become a very important one. Digital Signature can assure the integrality and confidentiality of the document to be sent. The most important is that it realizes the signer's undeniable. The zero-knowledge proof is used to prove such questions: the certifier owns a secret, and he makes verifier believe this without disclosing any information about the secret. Among the five applying fields of the world sponsoring "Infobahn" , Electro-government is the first. We can say that government information is guide of society information and electron government is necessity of informative society. Electronic official document is one of most important aspect of Electro-Government. Multiple figure digital signature is most important way to realize electronic official paper.This paper focuses on study a project of XML multiple figure digital signature, and this project bases on zero-knowledge proof. It has small grain size, can realize different people only can sign his own part. It as increase the difficulty of password attacking. The verifier can not get any useful information about the certifier. The plan can be used in the occasion requiring higher security. Now the study about zero-knowledge proof based XML multiple figure digital signature is little.