s = [ 0x5b , 0x54 , 0x52 , 0x5e , 0x56 , 0x48 , 0x44 , 0x56 , 0x5f , 0x50 , 0x3 , 0x5e , 0x56 , 0x6c , 0x47 , 0x3 , 0x6c , 0x41 , 0x56 , 0x6c , 0x44 , 0x5c , 0x41 , 0x2 , 0x57 , 0x12 , 0x4e ]

def enc(s):

     return ''.join([ chr (c ^ 0x33 ) for c in s])

print (enc(s))

#include<stdio.h>

void decrypt (unsigned int * v, unsigned int * k) { 

     unsigned int v0 = v[ 0 ], v1 = v[ 1 ];  / * set up * /

 

     / / unsigned int delta = 0xabcdef23 ;         

     unsigned int delta = ( 0 - 0x543210DD )& 0xffffffff ;

 

     / / / / unsigned int sum = 0x79bde460 ;

     unsigned int sum = delta<< 5 ;

 

     unsigned int k0 = k[ 0 ], k1 = k[ 1 ], k2 = k[ 2 ], k3 = k[ 3 ];   / * cache key * / 

     for ( int i = 0 ; i< 32 ; i + + ) {                         / * basic cycle start * / 

         v1 - = ((v0<< 4 ) + k2) ^ (v0 + sum ) ^ ((v0>> 5 ) + k3); 

         v0 - = ((v1<< 4 ) + k0) ^ (v1 + sum ) ^ ((v1>> 5 ) + k1); 

         sum - = delta; 

     }                                              / * end cycle * / 

     v[ 0 ] = v0; v[ 1 ] = v1; 

} 

 

 

int main(){

     / / unsigned int a2[] = { 0x45678901 , 0x34567890 , 0x23456789 , 0x12345678 };

     / / 大小端的问题

     unsigned int a2[] = { 0x12345678 , 0x23456789 , 0x34567890 , 0x45678901 };

     unsigned int Buf2[ 8 ];

     Buf2[ 0 ] = 0x2E63829D ;

     Buf2[ 1 ] = 0xC14E400F ;

     Buf2[ 2 ] = 0x9B39BFB9 ;

     Buf2[ 3 ] = 0x5A1F8B14 ;

     Buf2[ 4 ] = 0x61886DDE ;

     Buf2[ 5 ] = 0x6565C6CF ;

     Buf2[ 6 ] = 0x9F064F64 ;

     Buf2[ 7 ] = 0x236A43F6 ;

 

     decrypt(Buf2,a2);

     decrypt(Buf2 + 2 ,a2);

     decrypt(Buf2 + 4 ,a2);

     decrypt(Buf2 + 6 ,a2);

 

     for ( int i = 0 ;i< 40 ;i + + ){

         printf( "%c" , * ((unsigned char * )Buf2 + i));

     }

 

     return 0 ;

}

#include <stdio.h>

int main(){

     unsigned int v8[ 10 ];

     v8[ 0 ] = 0x9FDFF04 ;

     v8[ 1 ] = 0xB0F301 ;

     v8[ 2 ] = 0xADF00500 ;

     v8[ 3 ] = 0x5170607 ;

     v8[ 4 ] = 0x17FD17EB ;

     v8[ 5 ] = 0x1EE01EA ;

     v8[ 6 ] = 0xFA05B1EA ;

     v8[ 7 ] = 0xAC170108 ;

     v8[ 8 ] = 0xFDEA01EC ;

     v8[ 9 ] = 0x60705F0 ;

 

     for ( int i = 0 ;i< 41 ;i + + ){

         unsigned char c = ( * ((unsigned char * )v8 + i) + 0x56 )^ 0x32 ;

         printf( "%c" , c);

     }

 

}

#include<stdio.h>

int main(){

     int ida[] = {

         0x08 , 0x06 , 0x07 , 0x06 , 0x01 , 0x06 , 0x0D , 0x06 , 0x05 , 0x06 , 0x0B , 0x07 , 0x05 , 0x06 , 0x0E , 0x06 , 0x03 , 0x06 ,

         0x0F , 0x06 , 0x04 , 0x06 , 0x05 , 0x06 , 0x0F , 0x05 , 0x09 , 0x06 , 0x03 , 0x07 , 0x0F , 0x05 , 0x05 , 0x06 , 0x01 , 0x06 ,

         0x03 , 0x07 , 0x09 , 0x07 , 0x0F , 0x05 , 0x06 , 0x06 , 0x0F , 0x06 , 0x02 , 0x07 , 0x0F , 0x05 , 0x01 , 0x06 , 0x0F , 0x05 ,

         0x02 , 0x07 , 0x05 , 0x06 , 0x06 , 0x07 , 0x05 , 0x06 , 0x02 , 0x07 , 0x03 , 0x07 , 0x05 , 0x06 , 0x0F , 0x05 , 0x05 , 0x06 ,

         0x0E , 0x06 , 0x07 , 0x06 , 0x09 , 0x06 , 0x0E , 0x06 , 0x05 , 0x06 , 0x05 , 0x06 , 0x02 , 0x07 , 0x0D , 0x07

         };

 

     int temp[ 2 ];

     for ( int i = 0 ;i < 50 ;i + + ){

         for ( int j = 0 ; j < = 255 ; j + + ) {

             temp[ 0 ] = j & 0xF ;

             temp[ 1 ] = (j >> 4 ) & 0xF ;

             if (ida[ 2 * i] = = temp[ 0 ] && ida[ 2 * i + 1 ] = = temp[ 1 ]){

                 printf( "%c" , j);

                 break ;

             }

         }

     }

}