[1]Tu Xingyuan,Li Peng,One is the method of dos to expand the password function[J].Journal of Zhengzhou University (Engineering Science),1992,13(02):80-82.
                                
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                                    Journal of Zhengzhou University (Engineering Science)[ISSN
                                    1671-6833/CN
                                    41-1339/T] Volume:
                                    13
                                    Number of periods:
                                    1992 02
                                    Page number:
                                    80-82
                                    Column:
                                    
                                    Public date:
                                    1992-06-28
                                
                                
                                    - Title:
 
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                                        One is the method of dos to expand the password function
 
                                
                                
                                
                                    - Author(s):
 
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                                        Tu Xingyuan; Li Peng;
 
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                                        Zhengzhou Institute of Technology Computing Center, Zhengzhou Institute of Technology Computing Center,
 
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                                    - Keywords:
 
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                                        Data confidentiality;  file management
 
                                
                                
                                    - CLC:
 
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                                    - DOI:
 
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                                    - Abstract:
 
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                                        This article gives a method of expanding PC and DOS operating systems that enables it to have data confidentiality functions, and analyzes the expansion solution and strategy. The DOS after the anti -charging DOS is completely compatible with the original DOS.