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METHOD AND SERVER FOR PROVIDING NOTARY SERVICE WITH RESPECT TO FILE AND VERIFYING FILE RECORDED BY THE NOTARY SERVICE
METHOD AND SERVER FOR PROVIDING NOTARY SERVICE WITH RESPECT TO FILE AND VERIFYING FILE RECORDED BY THE NOTARY SERVICE
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机译:提供与文件有关的公证服务并验证由公证服务记录的文件的方法和服务器
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摘要
A method is provided for providing a notary service for a file, the method includes the steps in which: (a) when a notary service request for a specific file is obtained, a server generates, by using a hash function, or supports the generation of, a message digest of the specific file; and (b) if a predetermined condition is satisfied, the server registers, in a database, or supports the registration of, a representative hash value or a value obtained by processing the representative hash value, the representative hash value being generated by calculating at least one neighboring hash value that matches a specific hash value, wherein the specific hash value is a hash value of the result of encrypting the message digest with a private key of a first user, a private key of a second user and a private key of the server.
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