Apparatus and method for generating identifier of content file based on hash and method for hash code generation

摘要

The present invention relates to an apparatus and method for generating an identifier of a content file capable of identifying the identities of content files uploaded by different users at a higher speed using a hash operation and a hash code generation method used therefor, Using the identifiers generated according to the present invention, identities of content files uploaded by different users can be identified at relatively high speed. In addition to the bit values constituting the contents of the file stream, The possibility of identification error of the content file can be greatly reduced by performing the hash calculation based on the size of the content file.