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<?php function decrypt($a) { $tmp_1 = strtolower(strrev($a)); $tmp_2 = (substr($tmp, 0,4) ^ hexdec('BFF')) ^ hexdec('D77D'); $tmp_3 = substr($tmp,4); unset($tmp_5); for($tmp_5=0; $tmp_5 < strlen($tmp_3); $tmp_5++) { } } define('__FLAG__', 'flag{hidden_flag}'); if(decrypt($_REQUEST['pass']) == 'pwning_the_phpreverse!') { __FLAG__; } ?>
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 11, Position 2 = 13
Branch analysis from position: 11
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 13
filename:       /in/5jYYM
function name:  (null)
number of ops:  14
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   24     0  E >   INIT_FCALL                                               'define'
          1        SEND_VAL                                                 '__FLAG__'
          2        SEND_VAL                                                 'flag%7Bhidden_flag%7D'
          3        DO_ICALL                                                 
   25     4        INIT_FCALL                                               'decrypt'
          5        FETCH_R                      global              ~1      '_REQUEST'
          6        FETCH_DIM_R                                      ~2      ~1, 'pass'
          7        SEND_VAL                                                 ~2
          8        DO_FCALL                                      0  $3      
          9        IS_EQUAL                                                 $3, 'pwning_the_phpreverse%21'
         10      > JMPZ                                                     ~4, ->13
   27    11    >   FETCH_CONSTANT                                   ~5      '__FLAG__'
         12        FREE                                                     ~5
   29    13    > > RETURN                                                   1

Function decrypt:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 31
Branch analysis from position: 31
2 jumps found. (Code = 44) Position 1 = 34, Position 2 = 30
Branch analysis from position: 34
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 30
2 jumps found. (Code = 44) Position 1 = 34, Position 2 = 30
Branch analysis from position: 34
Branch analysis from position: 30
filename:       /in/5jYYM
function name:  decrypt
number of ops:  35
compiled vars:  !0 = $a, !1 = $tmp_1, !2 = $tmp_2, !3 = $tmp, !4 = $tmp_3, !5 = $tmp_5
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   RECV                                             !0      
    4     1        INIT_FCALL                                               'strtolower'
          2        INIT_FCALL                                               'strrev'
          3        SEND_VAR                                                 !0
          4        DO_ICALL                                         $6      
          5        SEND_VAR                                                 $6
          6        DO_ICALL                                         $7      
          7        ASSIGN                                                   !1, $7
    5     8        INIT_FCALL                                               'substr'
          9        SEND_VAR                                                 !3
         10        SEND_VAL                                                 0
         11        SEND_VAL                                                 4
         12        DO_ICALL                                         $9      
         13        INIT_FCALL                                               'hexdec'
         14        SEND_VAL                                                 'BFF'
         15        DO_ICALL                                         $10     
         16        BW_XOR                                           ~11     $9, $10
         17        INIT_FCALL                                               'hexdec'
         18        SEND_VAL                                                 'D77D'
         19        DO_ICALL                                         $12     
         20        BW_XOR                                           ~13     $12, ~11
         21        ASSIGN                                                   !2, ~13
    6    22        INIT_FCALL                                               'substr'
         23        SEND_VAR                                                 !3
         24        SEND_VAL                                                 4
         25        DO_ICALL                                         $15     
         26        ASSIGN                                                   !4, $15
    7    27        UNSET_CV                                                 !5
    8    28        ASSIGN                                                   !5, 0
         29      > JMP                                                      ->31
         30    >   PRE_INC                                                  !5
         31    >   STRLEN                                           ~19     !4
         32        IS_SMALLER                                               !5, ~19
         33      > JMPNZ                                                    ~20, ->30
   12    34    > > RETURN                                                   null

End of function decrypt

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
180.83 ms | 1403 KiB | 24 Q