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<?php $data = "wpdPVWejqNRYqDTeUJ2Iw06/rnfHAoy5jtgTojiilD0="; $pwd = "ICS2015"; $salt = "7"; $dec = Decrypt($data, $pwd, $salt); echo "Dec: " . $dec . "\r\n"; $enc = Encrypt("boy10@naver.com", $pwd, $salt); echo "Enc: " . $enc . "\r\n"; function Decrypt($ciphertext, $password, $salt) { $ciphertext = base64_decode($ciphertext); $key = PBKDF1($password, $salt, 100, 32); $iv = PBKDF1($password, $salt, 100, 16); // NB: Need 128 not 256 and CBC mode to be compatible $decpad = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $key, $ciphertext, MCRYPT_MODE_CBC, $iv); $pad = ord($decpad[($len = strlen($decpad)) - 1]); $dec = substr($decpad, 0, strlen($decpad) - $pad); return $dec; } function Encrypt($ciphertext, $password, $salt) { $key = PBKDF1($password, $salt, 100, 32); $iv = PBKDF1($password, $salt, 100, 16); return base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $key, $ciphertext, MCRYPT_MODE_CBC, $iv)); } function PBKDF1($pass, $salt, $count, $cb) { static $base; static $extra; static $extracount= 0; static $hashno; static $state = 0; if ($state == 0) { $hashno = 0; $state = 1; $key = $pass . $salt; $base = sha1($key, true); for($i = 2; $i < $count; $i++) { $base = sha1($base, true); } } $result = ""; if ($extracount > 0) { $rlen = strlen($extra) - $extracount; if ($rlen >= $cb) { $result = substr($extra, $extracount, $cb); if ($rlen > $cb) { $extracount += $cb; } else { $extra = null; $extracount = 0; } return $result; } $result = substr($extra, $rlen, $rlen); } $current = ""; $clen = 0; $remain = $cb - strlen($result); while ($remain > $clen) { if ($hashno == 0) { $current = sha1($base, true); } else if ($hashno < 1000) { $n = sprintf("%d", $hashno); $tmp = $n . $base; $current .= sha1($tmp, true); } $hashno++; $clen = strlen($current); } // $current now holds at least as many bytes as we need $result .= substr($current, 0, $remain); // Save any left over bytes for any future requests if ($clen > $remain) { $extra = $current; $extracount = $remain; } return $result; } ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/oOgZ7
function name:  (null)
number of ops:  22
compiled vars:  !0 = $data, !1 = $pwd, !2 = $salt, !3 = $dec, !4 = $enc
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 'wpdPVWejqNRYqDTeUJ2Iw06%2FrnfHAoy5jtgTojiilD0%3D'
    3     1        ASSIGN                                                   !1, 'ICS2015'
    4     2        ASSIGN                                                   !2, '7'
    8     3        INIT_FCALL_BY_NAME                                       'Decrypt'
          4        SEND_VAR_EX                                              !0
          5        SEND_VAR_EX                                              !1
          6        SEND_VAR_EX                                              !2
          7        DO_FCALL                                      0  $8      
          8        ASSIGN                                                   !3, $8
    9     9        CONCAT                                           ~10     'Dec%3A+', !3
         10        CONCAT                                           ~11     ~10, '%0D%0A'
         11        ECHO                                                     ~11
   11    12        INIT_FCALL_BY_NAME                                       'Encrypt'
         13        SEND_VAL_EX                                              'boy10%40naver.com'
         14        SEND_VAR_EX                                              !1
         15        SEND_VAR_EX                                              !2
         16        DO_FCALL                                      0  $12     
         17        ASSIGN                                                   !4, $12
   12    18        CONCAT                                           ~14     'Enc%3A+', !4
         19        CONCAT                                           ~15     ~14, '%0D%0A'
         20        ECHO                                                     ~15
  116    21      > RETURN                                                   1

Function decrypt:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/oOgZ7
function name:  Decrypt
number of ops:  49
compiled vars:  !0 = $ciphertext, !1 = $password, !2 = $salt, !3 = $key, !4 = $iv, !5 = $decpad, !6 = $pad, !7 = $len, !8 = $dec
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   16     0  E >   RECV                                             !0      
          1        RECV                                             !1      
          2        RECV                                             !2      
   18     3        INIT_FCALL                                               'base64_decode'
          4        SEND_VAR                                                 !0
          5        DO_ICALL                                         $9      
          6        ASSIGN                                                   !0, $9
   19     7        INIT_FCALL_BY_NAME                                       'PBKDF1'
          8        SEND_VAR_EX                                              !1
          9        SEND_VAR_EX                                              !2
         10        SEND_VAL_EX                                              100
         11        SEND_VAL_EX                                              32
         12        DO_FCALL                                      0  $11     
         13        ASSIGN                                                   !3, $11
   20    14        INIT_FCALL_BY_NAME                                       'PBKDF1'
         15        SEND_VAR_EX                                              !1
         16        SEND_VAR_EX                                              !2
         17        SEND_VAL_EX                                              100
         18        SEND_VAL_EX                                              16
         19        DO_FCALL                                      0  $13     
         20        ASSIGN                                                   !4, $13
   23    21        INIT_FCALL_BY_NAME                                       'mcrypt_decrypt'
         22        FETCH_CONSTANT                                   ~15     'MCRYPT_RIJNDAEL_128'
         23        SEND_VAL_EX                                              ~15
         24        SEND_VAR_EX                                              !3
         25        SEND_VAR_EX                                              !0
         26        FETCH_CONSTANT                                   ~16     'MCRYPT_MODE_CBC'
         27        SEND_VAL_EX                                              ~16
         28        SEND_VAR_EX                                              !4
         29        DO_FCALL                                      0  $17     
         30        ASSIGN                                                   !5, $17
   25    31        INIT_FCALL                                               'ord'
         32        STRLEN                                           ~19     !5
         33        ASSIGN                                           ~20     !7, ~19
         34        SUB                                              ~21     ~20, 1
         35        FETCH_DIM_R                                      ~22     !5, ~21
         36        SEND_VAL                                                 ~22
         37        DO_ICALL                                         $23     
         38        ASSIGN                                                   !6, $23
   26    39        INIT_FCALL                                               'substr'
         40        SEND_VAR                                                 !5
         41        SEND_VAL                                                 0
         42        STRLEN                                           ~25     !5
         43        SUB                                              ~26     ~25, !6
         44        SEND_VAL                                                 ~26
         45        DO_ICALL                                         $27     
         46        ASSIGN                                                   !8, $27
   28    47      > RETURN                                                   !8
   29    48*     > RETURN                                                   null

End of function decrypt

Function encrypt:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/oOgZ7
function name:  Encrypt
number of ops:  31
compiled vars:  !0 = $ciphertext, !1 = $password, !2 = $salt, !3 = $key, !4 = $iv
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   32     0  E >   RECV                                             !0      
          1        RECV                                             !1      
          2        RECV                                             !2      
   35     3        INIT_FCALL_BY_NAME                                       'PBKDF1'
          4        SEND_VAR_EX                                              !1
          5        SEND_VAR_EX                                              !2
          6        SEND_VAL_EX                                              100
          7        SEND_VAL_EX                                              32
          8        DO_FCALL                                      0  $5      
          9        ASSIGN                                                   !3, $5
   36    10        INIT_FCALL_BY_NAME                                       'PBKDF1'
         11        SEND_VAR_EX                                              !1
         12        SEND_VAR_EX                                              !2
         13        SEND_VAL_EX                                              100
         14        SEND_VAL_EX                                              16
         15        DO_FCALL                                      0  $7      
         16        ASSIGN                                                   !4, $7
   38    17        INIT_FCALL                                               'base64_encode'
         18        INIT_FCALL_BY_NAME                                       'mcrypt_encrypt'
         19        FETCH_CONSTANT                                   ~9      'MCRYPT_RIJNDAEL_128'
         20        SEND_VAL_EX                                              ~9
         21        SEND_VAR_EX                                              !3
         22        SEND_VAR_EX                                              !0
         23        FETCH_CONSTANT                                   ~10     'MCRYPT_MODE_CBC'
         24        SEND_VAL_EX                                              ~10
         25        SEND_VAR_EX                                              !4
         26        DO_FCALL                                      0  $11     
         27        SEND_VAR                                                 $11
         28        DO_ICALL                                         $12     
         29      > RETURN                                                   $12
   40    30*     > RETURN                                                   null

End of function encrypt

Function pbkdf1:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 11, Position 2 = 30
Branch analysis from position: 11
1 jumps found. (Code = 42) Position 1 = 28
Branch analysis from position: 28
2 jumps found. (Code = 44) Position 1 = 30, Position 2 = 22
Branch analysis from position: 30
2 jumps found. (Code = 43) Position 1 = 33, Position 2 = 57
Branch analysis from position: 33
2 jumps found. (Code = 43) Position 1 = 38, Position 2 = 51
Branch analysis from position: 38
2 jumps found. (Code = 43) Position 1 = 46, Position 2 = 48
Branch analysis from position: 46
1 jumps found. (Code = 42) Position 1 = 50
Branch analysis from position: 50
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 48
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 51
1 jumps found. (Code = 42) Position 1 = 88
Branch analysis from position: 88
2 jumps found. (Code = 44) Position 1 = 90, Position 2 = 63
Branch analysis from position: 90
2 jumps found. (Code = 43) Position 1 = 98, Position 2 = 100
Branch analysis from position: 98
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 100
Branch analysis from position: 63
2 jumps found. (Code = 43) Position 1 = 65, Position 2 = 71
Branch analysis from position: 65
1 jumps found. (Code = 42) Position 1 = 85
Branch analysis from position: 85
2 jumps found. (Code = 44) Position 1 = 90, Position 2 = 63
Branch analysis from position: 90
Branch analysis from position: 63
Branch analysis from position: 71
2 jumps found. (Code = 43) Position 1 = 73, Position 2 = 85
Branch analysis from position: 73
2 jumps found. (Code = 44) Position 1 = 90, Position 2 = 63
Branch analysis from position: 90
Branch analysis from position: 63
Branch analysis from position: 85
Branch analysis from position: 57
Branch analysis from position: 22
2 jumps found. (Code = 44) Position 1 = 30, Position 2 = 22
Branch analysis from position: 30
Branch analysis from position: 22
Branch analysis from position: 30
filename:       /in/oOgZ7
function name:  PBKDF1
number of ops:  102
compiled vars:  !0 = $pass, !1 = $salt, !2 = $count, !3 = $cb, !4 = $base, !5 = $extra, !6 = $extracount, !7 = $hashno, !8 = $state, !9 = $key, !10 = $i, !11 = $result, !12 = $rlen, !13 = $current, !14 = $clen, !15 = $remain, !16 = $n, !17 = $tmp
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   42     0  E >   RECV                                             !0      
          1        RECV                                             !1      
          2        RECV                                             !2      
          3        RECV                                             !3      
   44     4        BIND_STATIC                                              !4
   45     5        BIND_STATIC                                              !5
   46     6        BIND_STATIC                                              !6
   47     7        BIND_STATIC                                              !7
   48     8        BIND_STATIC                                              !8
   50     9        IS_EQUAL                                                 !8, 0
         10      > JMPZ                                                     ~18, ->30
   52    11    >   ASSIGN                                                   !7, 0
   53    12        ASSIGN                                                   !8, 1
   55    13        CONCAT                                           ~21     !0, !1
         14        ASSIGN                                                   !9, ~21
   56    15        INIT_FCALL                                               'sha1'
         16        SEND_VAR                                                 !9
         17        SEND_VAL                                                 <true>
         18        DO_ICALL                                         $23     
         19        ASSIGN                                                   !4, $23
   57    20        ASSIGN                                                   !10, 2
         21      > JMP                                                      ->28
   59    22    >   INIT_FCALL                                               'sha1'
         23        SEND_VAR                                                 !4
         24        SEND_VAL                                                 <true>
         25        DO_ICALL                                         $26     
         26        ASSIGN                                                   !4, $26
   57    27        PRE_INC                                                  !10
         28    >   IS_SMALLER                                               !10, !2
         29      > JMPNZ                                                    ~29, ->22
   63    30    >   ASSIGN                                                   !11, ''
   65    31        IS_SMALLER                                               0, !6
         32      > JMPZ                                                     ~31, ->57
   67    33    >   STRLEN                                           ~32     !5
         34        SUB                                              ~33     ~32, !6
         35        ASSIGN                                                   !12, ~33
   68    36        IS_SMALLER_OR_EQUAL                                      !3, !12
         37      > JMPZ                                                     ~35, ->51
   70    38    >   INIT_FCALL                                               'substr'
         39        SEND_VAR                                                 !5
         40        SEND_VAR                                                 !6
         41        SEND_VAR                                                 !3
         42        DO_ICALL                                         $36     
         43        ASSIGN                                                   !11, $36
   71    44        IS_SMALLER                                               !3, !12
         45      > JMPZ                                                     ~38, ->48
   73    46    >   ASSIGN_OP                                     1          !6, !3
         47      > JMP                                                      ->50
   77    48    >   ASSIGN                                                   !5, null
   78    49        ASSIGN                                                   !6, 0
   80    50    > > RETURN                                                   !11
   82    51    >   INIT_FCALL                                               'substr'
         52        SEND_VAR                                                 !5
         53        SEND_VAR                                                 !12
         54        SEND_VAR                                                 !12
         55        DO_ICALL                                         $42     
         56        ASSIGN                                                   !11, $42
   85    57    >   ASSIGN                                                   !13, ''
   86    58        ASSIGN                                                   !14, 0
   87    59        STRLEN                                           ~46     !11
         60        SUB                                              ~47     !3, ~46
         61        ASSIGN                                                   !15, ~47
   88    62      > JMP                                                      ->88
   90    63    >   IS_EQUAL                                                 !7, 0
         64      > JMPZ                                                     ~49, ->71
   92    65    >   INIT_FCALL                                               'sha1'
         66        SEND_VAR                                                 !4
         67        SEND_VAL                                                 <true>
         68        DO_ICALL                                         $50     
         69        ASSIGN                                                   !13, $50
         70      > JMP                                                      ->85
   94    71    >   IS_SMALLER                                               !7, 1000
         72      > JMPZ                                                     ~52, ->85
   96    73    >   INIT_FCALL                                               'sprintf'
         74        SEND_VAL                                                 '%25d'
         75        SEND_VAR                                                 !7
         76        DO_ICALL                                         $53     
         77        ASSIGN                                                   !16, $53
   97    78        CONCAT                                           ~55     !16, !4
         79        ASSIGN                                                   !17, ~55
   98    80        INIT_FCALL                                               'sha1'
         81        SEND_VAR                                                 !17
         82        SEND_VAL                                                 <true>
         83        DO_ICALL                                         $57     
         84        ASSIGN_OP                                     8          !13, $57
  100    85    >   PRE_INC                                                  !7
  101    86        STRLEN                                           ~60     !13
         87        ASSIGN                                                   !14, ~60
   88    88    >   IS_SMALLER                                               !14, !15
         89      > JMPNZ                                                    ~62, ->63
  105    90    >   INIT_FCALL                                               'substr'
         91        SEND_VAR                                                 !13
         92        SEND_VAL                                                 0
         93        SEND_VAR                                                 !15
         94        DO_ICALL                                         $63     
         95        ASSIGN_OP                                     8          !11, $63
  108    96        IS_SMALLER                                               !15, !14
         97      > JMPZ                                                     ~65, ->100
  110    98    >   ASSIGN                                                   !5, !13
  111    99        ASSIGN                                                   !6, !15
  114   100    > > RETURN                                                   !11
  115   101*     > RETURN                                                   null

End of function pbkdf1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
154.14 ms | 1408 KiB | 25 Q