File verification method and device, equipment and storage medium

The invention provides a file verification method and device, equipment and a storage medium, and is applied to the technical field of electronic file evidence storage and verification. The method comprises the following steps: performing hash calculation on each batch of sorted multiple original fi...

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Bibliographic Details
Main Authors GAO MING, ZHANG XIAOSHI, SHEN WENJUN, DING SHIJING
Format Patent
LanguageChinese
English
Published 24.03.2023
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:The invention provides a file verification method and device, equipment and a storage medium, and is applied to the technical field of electronic file evidence storage and verification. The method comprises the following steps: performing hash calculation on each batch of sorted multiple original files to obtain original hash values of each batch of sorted multiple original files; on the basis of the original hash values of the multiple original files, constructing an original file Merkel tree of each batch of sorted multiple original files; performing solidification storage on the original hash value of the root node of the Merkel tree of the original file; a to-be-verified file Merkel tree of each batch of sorted to-be-verified files is constructed, a root node hash value of the to-be-verified file Merkel tree is obtained, and the construction rule of the to-be-verified file Merkel tree is consistent with the construction rule of the original file Merkel tree; and comparing the root node original hash value
Bibliography:Application Number: CN202211644132