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 a device and a method for generating an identifier of a content file capable of identifying the identity of content files uploaded by difference users using a hash calculation at high speed and a method for generating a hash code using the same. Using an identifier generated by the present invention allows the identity of the content file uploaded by different users to be identified at high speed and reduces the possibility of identity identifying errors of the content file by performing the hash calculation based on bit values composing the contents of a file stream as well as the its own size of the file stream. [Reference numerals] (110) Stream input unit; (120) Hash code generation unit; (121) File-sized hash block generation unit; (122) Unit block division unit; (123) Stream hash block generation unit; (124) Hash calculation unit; (130) Identifier generation unit