Patent ID: 11880471
Assignee: INSPUR SUZHOU INTELLIGENT TECHNOLOGY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 8:
9. The PCA-based password hard-coding detection method according to claim 8, wherein the feature set obtained in Step 4.1 is a 1*m matrix F=(F1, F2 . . . Fm), the matrix U is a m*m matrix, and the distance d obtained by calculation is:, d
   =
   
    
     
      
       ∑
        
      
      
       i
       =
       1
      
      m
     
     ⁢
     
      
       ∑
        
      
      
       1
       =
       1
      
      m
     
     ⁢
     
      
       (
       
        
         F
         j
        
        -
        
         U
         
          j
          ⁢
          i
         
        
       
       )
      
      2
     
    
   
  
  ,, wherein Fj is a value of a jth column in the matrix F, and Uji is a value of a jth row and an ith column in the matrix U.