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<?php $secret = 'a0a7e7997b6d5fcd55f4b5c32611b87c'; function encrypt128($str, $secret) { $block = 16; $pad = $block - (strlen($str) % $block); $str .= str_repeat(chr($pad), $pad); return base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $secret, $str, MCRYPT_MODE_ECB)); } function sslEncrypt128($str, $secret) { return base64_encode(openssl_encrypt($str, 'aes-128-ecb', $secret, OPENSSL_RAW_DATA)); } var_dump(encrypt128('small1', $secret)); var_dump(sslEncrypt128('small1', $secret));
based on 30ID9
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/v2J2N
function name:  (null)
number of ops:  18
compiled vars:  !0 = $secret
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   3     0  E >   ASSIGN                                                   !0, 'a0a7e7997b6d5fcd55f4b5c32611b87c'
   5     1        NOP                                                      
  14     2        NOP                                                      
  19     3        INIT_FCALL                                               'var_dump'
         4        INIT_FCALL                                               'encrypt128'
         5        SEND_VAL                                                 'small1'
         6        SEND_VAR                                                 !0
         7        DO_FCALL                                      0  $2      
         8        SEND_VAR                                                 $2
         9        DO_ICALL                                                 
  20    10        INIT_FCALL                                               'var_dump'
        11        INIT_FCALL                                               'sslencrypt128'
        12        SEND_VAL                                                 'small1'
        13        SEND_VAR                                                 !0
        14        DO_FCALL                                      0  $4      
        15        SEND_VAR                                                 $4
        16        DO_ICALL                                                 
        17      > RETURN                                                   1

Function encrypt128:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/v2J2N
function name:  encrypt128
number of ops:  28
compiled vars:  !0 = $str, !1 = $secret, !2 = $block, !3 = $pad
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   5     0  E >   RECV                                             !0      
         1        RECV                                             !1      
   7     2        ASSIGN                                                   !2, 16
   8     3        STRLEN                                           ~5      !0
         4        MOD                                              ~6      ~5, !2
         5        SUB                                              ~7      !2, ~6
         6        ASSIGN                                                   !3, ~7
   9     7        INIT_FCALL                                               'str_repeat'
         8        INIT_FCALL                                               'chr'
         9        SEND_VAR                                                 !3
        10        DO_ICALL                                         $9      
        11        SEND_VAR                                                 $9
        12        SEND_VAR                                                 !3
        13        DO_ICALL                                         $10     
        14        ASSIGN_CONCAT                                 0          !0, $10
  11    15        INIT_FCALL                                               'base64_encode'
        16        INIT_FCALL_BY_NAME                                       'mcrypt_encrypt'
        17        FETCH_CONSTANT                                   ~12     'MCRYPT_RIJNDAEL_128'
        18        SEND_VAL_EX                                              ~12
        19        SEND_VAR_EX                                              !1
        20        SEND_VAR_EX                                              !0
        21        FETCH_CONSTANT                                   ~13     'MCRYPT_MODE_ECB'
        22        SEND_VAL_EX                                              ~13
        23        DO_FCALL                                      0  $14     
        24        SEND_VAR                                                 $14
        25        DO_ICALL                                         $15     
        26      > RETURN                                                   $15
  12    27*     > RETURN                                                   null

End of function encrypt128

Function sslencrypt128:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/v2J2N
function name:  sslEncrypt128
number of ops:  14
compiled vars:  !0 = $str, !1 = $secret
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
  14     0  E >   RECV                                             !0      
         1        RECV                                             !1      
  16     2        INIT_FCALL                                               'base64_encode'
         3        INIT_FCALL_BY_NAME                                       'openssl_encrypt'
         4        SEND_VAR_EX                                              !0
         5        SEND_VAL_EX                                              'aes-128-ecb'
         6        SEND_VAR_EX                                              !1
         7        FETCH_CONSTANT                                   ~2      'OPENSSL_RAW_DATA'
         8        SEND_VAL_EX                                              ~2
         9        DO_FCALL                                      0  $3      
        10        SEND_VAR                                                 $3
        11        DO_ICALL                                         $4      
        12      > RETURN                                                   $4
  17    13*     > RETURN                                                   null

End of function sslencrypt128

Generated using Vulcan Logic Dumper, using php 7.3.0