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Step 5. Punishment of users

1 : function UserPunish( $U s e r u s e r, R u l e r u l e$ )

2 : Let $p_{i} = r u l e . p u n i s h m e n t$ ;

3 : if ( $u s e r . a c c o u n t \leq p_{i} . m$ and $u s e r . c r e d i t \leq p_{i} . c$ )

4 : $u s e r . D C = n u l l$ ;

5 : push $u s e r$ into CRL;

6 : else

7 : $u s e r . a c c o u n t = u s e r . a c c o u n t - p_{i} . m$ ;

8 : $u s e r . c r e d i t = u s e r . c r e d i t - p_{i} . c$ ;

9 : end if

10: End function