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<?php //Enter your code here, enjoy! function hmac($algo,$data,$passwd){ /* md5 and sha1 only */ $algo=strtolower($algo); echo $algo; $p=array('md5'=>'greatherH32','sha1'=>'H40'); if(strlen($passwd)>64) { $passwd=pack($p[$algo],$algo($passwd)); echo 'pass greater than 64'; echo $passwd; } if(strlen($passwd)<64) { $passwd=str_pad($passwd,64,chr(0)); echo 'pass smaller than 64'; echo $passwd; } $ipad=substr($passwd,0,64) ^ str_repeat(chr(0x36),64); echo 'ipad: $ipad'; $opad=substr($passwd,0,64) ^ str_repeat(chr(0x5C),64); echo 'opad: $opad'; return($algo($opad.pack($p[$algo],$algo($ipad.$data)))); } # XXX ePay.bg URL (https://devep2.datamax.bg/ep2/epay2_demo/ if POST to DEMO system) $submit_url = 'https://devep2.datamax.bg/ep2/epay2_demo/'; # XXX Secret word with which merchant make CHECKSUM on the ENCODED packet $secret = 'secret'; $min = 'D544248794'; $invoice = 1234; # XXX Invoice $sum = '22.80'; # XXX Ammount $exp_date = '01.08.2020'; # XXX Expiration date $descr = 'Test'; # XXX Description $data = <<<DATA MIN={$min} INVOICE={$invoice} AMOUNT={$sum} EXP_TIME={$exp_date} DESCR={$descr} DATA; # XXX Packet: # (MIN or EMAIL)= REQUIRED # INVOICE= REQUIRED # AMOUNT= REQUIRED # EXP_TIME= REQUIRED # DESCR= OPTIONAL $ENCODED = base64_encode($data); $CHECKSUM = hmac('sha1', $ENCODED, $secret); # XXX SHA-1 algorithm REQUIRED echo <<<HTML <HTML> <head> <meta http-equiv="content-type" content="text/html; charset=windows-1251"> </head> <BODY TEXT=#000000 BGCOLOR=#FFFFFF> <BR> <BR> <CENTER><h1>DEMO</h1> <TABLE border=1> <form action="{$submit_url}" method=POST> <input type=hidden name=PAGE value="paylogin"> <input type=hidden name=ENCODED value="{$ENCODED}"> <input type=hidden name=CHECKSUM value="{$CHECKSUM}"> <input type=hidden name=URL_OK value="SET_URL_OK_IF_NEEDED"> <input type=hidden name=URL_CANCEL value="SET_URL_CANCEL_IF_NEEDED"> <TR> <TD>ÌÈÍ: {$min}</TD> </TR> <TR> <TD>Ôàêòóðà íîìåð: {$invoice}</TD> </TR> <TR> <TD>Îïèñàíèå: {$descr}</TD> </TR> <TR> <TD> <xmp> Ïðîäóêòè êîë. åä.öåíà öåíà ------------------------------------------------ ïðîäóêò1 3 2.50 7.50 ïðîäóêò2 1 3.50 3.50 ïðîäóêò3 2 4.00 8.00 ------------------------------------------------ îáùî 19.00 ÄÄÑ 3.80 Âñè÷êî {$sum} </xmp> </TD> </TR> <TR> <TD>Ñóìà: {$sum}</TD> </TR> </table> <table width=100%> <TR align=center> <TD><INPUT type=submit></TD> </TR> </TABLE> </form> </BODY> </HTML> HTML; ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/gdRBa
function name:  (null)
number of ops:  47
compiled vars:  !0 = $submit_url, !1 = $secret, !2 = $min, !3 = $invoice, !4 = $sum, !5 = $exp_date, !6 = $descr, !7 = $data, !8 = $ENCODED, !9 = $CHECKSUM
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   33     0  E >   ASSIGN                                                   !0, 'https%3A%2F%2Fdevep2.datamax.bg%2Fep2%2Fepay2_demo%2F'
   35     1        ASSIGN                                                   !1, 'secret'
   37     2        ASSIGN                                                   !2, 'D544248794'
   38     3        ASSIGN                                                   !3, 1234
   39     4        ASSIGN                                                   !4, '22.80'
   40     5        ASSIGN                                                   !5, '01.08.2020'
   41     6        ASSIGN                                                   !6, 'Test'
   44     7        ROPE_INIT                                    10  ~18     'MIN%3D'
          8        ROPE_ADD                                      1  ~18     ~18, !2
          9        ROPE_ADD                                      2  ~18     ~18, '%0AINVOICE%3D'
   45    10        ROPE_ADD                                      3  ~18     ~18, !3
         11        ROPE_ADD                                      4  ~18     ~18, '%0AAMOUNT%3D'
   46    12        ROPE_ADD                                      5  ~18     ~18, !4
         13        ROPE_ADD                                      6  ~18     ~18, '%0AEXP_TIME%3D'
   47    14        ROPE_ADD                                      7  ~18     ~18, !5
         15        ROPE_ADD                                      8  ~18     ~18, '%0ADESCR%3D'
   48    16        ROPE_END                                      9  ~17     ~18, !6
   43    17        ASSIGN                                                   !7, ~17
   58    18        INIT_FCALL                                               'base64_encode'
         19        SEND_VAR                                                 !7
         20        DO_ICALL                                         $24     
         21        ASSIGN                                                   !8, $24
   59    22        INIT_FCALL                                               'hmac'
         23        SEND_VAL                                                 'sha1'
         24        SEND_VAR                                                 !8
         25        SEND_VAR                                                 !1
         26        DO_FCALL                                      0  $26     
         27        ASSIGN                                                   !9, $26
   62    28        ROPE_INIT                                    17  ~29     '%3CHTML%3E%0A%3Chead%3E%0A++++%3Cmeta+http-equiv%3D%22content-type%22+content%3D%22text%2Fhtml%3B+charset%3Dwindows-1251%22%3E%0A%3C%2Fhead%3E%0A%3CBODY+TEXT%3D%23000000+BGCOLOR%3D%23FFFFFF%3E%0A%3CBR%3E%0A%3CBR%3E%0A%3CCENTER%3E%3Ch1%3EDEMO%3C%2Fh1%3E%0A%3CTABLE+border%3D1%3E%0A%0A%3Cform+action%3D%22'
   72    29        ROPE_ADD                                      1  ~29     ~29, !0
         30        ROPE_ADD                                      2  ~29     ~29, '%22+method%3DPOST%3E%0A%3Cinput+type%3Dhidden+name%3DPAGE+value%3D%22paylogin%22%3E%0A%3Cinput+type%3Dhidden+name%3DENCODED+value%3D%22'
   74    31        ROPE_ADD                                      3  ~29     ~29, !8
         32        ROPE_ADD                                      4  ~29     ~29, '%22%3E%0A%3Cinput+type%3Dhidden+name%3DCHECKSUM+value%3D%22'
   75    33        ROPE_ADD                                      5  ~29     ~29, !9
         34        ROPE_ADD                                      6  ~29     ~29, '%22%3E%0A%3Cinput+type%3Dhidden+name%3DURL_OK+value%3D%22SET_URL_OK_IF_NEEDED%22%3E%0A%3Cinput+type%3Dhidden+name%3DURL_CANCEL+value%3D%22SET_URL_CANCEL_IF_NEEDED%22%3E%0A%0A%3CTR%3E%0A%3CTD%3E%C3%8C%C3%88%C3%8D%3A+'
   80    35        ROPE_ADD                                      7  ~29     ~29, !2
         36        ROPE_ADD                                      8  ~29     ~29, '%3C%2FTD%3E%0A%3C%2FTR%3E%0A%0A%3CTR%3E%0A%3CTD%3E%C3%94%C3%A0%C3%AA%C3%B2%C3%B3%C3%B0%C3%A0+%C3%AD%C3%AE%C3%AC%C3%A5%C3%B0%3A+'
   84    37        ROPE_ADD                                      9  ~29     ~29, !3
         38        ROPE_ADD                                     10  ~29     ~29, '%3C%2FTD%3E%0A%3C%2FTR%3E%0A%0A%3CTR%3E%0A%3CTD%3E%C3%8E%C3%AF%C3%A8%C3%B1%C3%A0%C3%AD%C3%A8%C3%A5%3A+'
   88    39        ROPE_ADD                                     11  ~29     ~29, !6
         40        ROPE_ADD                                     12  ~29     ~29, '%3C%2FTD%3E%0A%3C%2FTR%3E%0A%0A%3CTR%3E%0A%3CTD%3E%0A%0A%3Cxmp%3E%0A%C3%8F%C3%B0%C3%AE%C3%A4%C3%B3%C3%AA%C3%B2%C3%A8++++++++++++++++++++%C3%AA%C3%AE%C3%AB.++%C3%A5%C3%A4.%C3%B6%C3%A5%C3%AD%C3%A0+++%C3%B6%C3%A5%C3%AD%C3%A0%0A------------------------------------------------%0A%C3%AF%C3%B0%C3%AE%C3%A4%C3%B3%C3%AA%C3%B21+++++++++++++++++++++3++++++2.50++++7.50%0A%C3%AF%C3%B0%C3%AE%C3%A4%C3%B3%C3%AA%C3%B22+++++++++++++++++++++1++++++3.50++++3.50%0A%C3%AF%C3%B0%C3%AE%C3%A4%C3%B3%C3%AA%C3%B23+++++++++++++++++++++2++++++4.00++++8.00%0A------------------------------------------------%0A%C3%AE%C3%A1%C3%B9%C3%AE+++19.00%0A%C3%84%C3%84%C3%91++++3.80%0A%C3%82%C3%B1%C3%A8%C3%B7%C3%AA%C3%AE+++'
  103    41        ROPE_ADD                                     13  ~29     ~29, !4
         42        ROPE_ADD                                     14  ~29     ~29, '%0A%3C%2Fxmp%3E%0A%0A%3C%2FTD%3E%0A%3C%2FTR%3E%0A%0A%3CTR%3E%0A%3CTD%3E%C3%91%C3%B3%C3%AC%C3%A0%3A+'
  110    43        ROPE_ADD                                     15  ~29     ~29, !4
         44        ROPE_END                                     16  ~28     ~29, '%3C%2FTD%3E%0A%3C%2FTR%3E%0A%0A%0A%3C%2Ftable%3E%0A%0A%3Ctable+width%3D100%25%3E%0A%3CTR+align%3Dcenter%3E%0A%3CTD%3E%3CINPUT+type%3Dsubmit%3E%3C%2FTD%3E%0A%3C%2FTR%3E%0A%0A%0A%3C%2FTABLE%3E%0A%0A%3C%2Fform%3E%0A%3C%2FBODY%3E%0A%3C%2FHTML%3E'
         45        ECHO                                                     ~28
  128    46      > RETURN                                                   1

Function hmac:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 12, Position 2 = 23
Branch analysis from position: 12
2 jumps found. (Code = 43) Position 1 = 26, Position 2 = 34
Branch analysis from position: 26
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 34
Branch analysis from position: 23
filename:       /in/gdRBa
function name:  hmac
number of ops:  73
compiled vars:  !0 = $algo, !1 = $data, !2 = $passwd, !3 = $p, !4 = $ipad, !5 = $opad
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   RECV                                             !0      
          1        RECV                                             !1      
          2        RECV                                             !2      
    6     3        INIT_FCALL                                               'strtolower'
          4        SEND_VAR                                                 !0
          5        DO_ICALL                                         $6      
          6        ASSIGN                                                   !0, $6
    7     7        ECHO                                                     !0
    8     8        ASSIGN                                                   !3, <array>
   10     9        STRLEN                                           ~9      !2
         10        IS_SMALLER                                               64, ~9
         11      > JMPZ                                                     ~10, ->23
   11    12    >   INIT_FCALL                                               'pack'
         13        FETCH_DIM_R                                      ~11     !3, !0
         14        SEND_VAL                                                 ~11
         15        INIT_DYNAMIC_CALL                                        !0
         16        SEND_VAR_EX                                              !2
         17        DO_FCALL                                      0  $12     
         18        SEND_VAR                                                 $12
         19        DO_ICALL                                         $13     
         20        ASSIGN                                                   !2, $13
   12    21        ECHO                                                     'pass+greater+than+64'
   13    22        ECHO                                                     !2
   16    23    >   STRLEN                                           ~15     !2
         24        IS_SMALLER                                               ~15, 64
         25      > JMPZ                                                     ~16, ->34
   18    26    >   INIT_FCALL                                               'str_pad'
         27        SEND_VAR                                                 !2
         28        SEND_VAL                                                 64
         29        SEND_VAL                                                 '%00'
         30        DO_ICALL                                         $17     
         31        ASSIGN                                                   !2, $17
   19    32        ECHO                                                     'pass+smaller+than+64'
   20    33        ECHO                                                     !2
   24    34    >   INIT_FCALL                                               'substr'
         35        SEND_VAR                                                 !2
         36        SEND_VAL                                                 0
         37        SEND_VAL                                                 64
         38        DO_ICALL                                         $19     
         39        INIT_FCALL                                               'str_repeat'
         40        SEND_VAL                                                 '6'
         41        SEND_VAL                                                 64
         42        DO_ICALL                                         $20     
         43        BW_XOR                                           ~21     $19, $20
         44        ASSIGN                                                   !4, ~21
   25    45        ECHO                                                     'ipad%3A+%24ipad'
   26    46        INIT_FCALL                                               'substr'
         47        SEND_VAR                                                 !2
         48        SEND_VAL                                                 0
         49        SEND_VAL                                                 64
         50        DO_ICALL                                         $23     
         51        INIT_FCALL                                               'str_repeat'
         52        SEND_VAL                                                 '%5C'
         53        SEND_VAL                                                 64
         54        DO_ICALL                                         $24     
         55        BW_XOR                                           ~25     $23, $24
         56        ASSIGN                                                   !5, ~25
   27    57        ECHO                                                     'opad%3A+%24opad'
   29    58        INIT_DYNAMIC_CALL                                        !0
         59        INIT_FCALL                                               'pack'
         60        FETCH_DIM_R                                      ~27     !3, !0
         61        SEND_VAL                                                 ~27
         62        INIT_DYNAMIC_CALL                                        !0
         63        CONCAT                                           ~28     !4, !1
         64        SEND_VAL_EX                                              ~28
         65        DO_FCALL                                      0  $29     
         66        SEND_VAR                                                 $29
         67        DO_ICALL                                         $30     
         68        CONCAT                                           ~31     !5, $30
         69        SEND_VAL_EX                                              ~31
         70        DO_FCALL                                      0  $32     
         71      > RETURN                                                   $32
   30    72*     > RETURN                                                   null

End of function hmac

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
165.48 ms | 956 KiB | 27 Q