GPU-based fast password recovery system and method for MS-Office

摘要

A fast password recovery system and method from an MS-Office file using a graphics processor is disclosed. The password recovery system extracts DOCID, SALT and HASHEDSALT values from the MS-Office file encrypted with Office 97/2000 compatible algorithms and stores them in the graphics processor''s memory. A central processing unit; And a process of converting a key sequence of a password by an Office 97/2000 compatible algorithm and determining whether a password matches by using the stored DOCID, SALT, and HASHEDSALT values for a plurality of passwords stored in a memory of a graphics processor. And a graphics processor for providing the result to the central processing unit. This makes it possible to quickly recover passwords from MS-Office files.