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<?php // This is a demo, decrypting a string which was encrypted here: https://repl.it/BhjH // CAUTION: This is a 512 bit RSA demo key - NEVER USE THIS SOMEWHERE FOR REAL! $private_key_string = <<<__EOF__ -----BEGIN RSA PRIVATE KEY----- MIIBOQIBAAJBAOhTYPPN5g/2CSnWflL39tXhvUUXNZYcd57TBiR2+ds7iB4bjivB IujlivE0xD8/GQD+8Pe12A4oYjmnHqfa620CAwEAAQJAUMAiU7t+Oo/+0V7vW3E6 h07GFYyioIFWhoq8eNItuCgIXCD3yA9Ox98JwYS9q/1WQiuw/gISOM+uZlaWlpKx dQIhAPzXgBaMVpuJmMdfgQ2Hhdg5dUUKBnSdOOLCjwv9AHujAiEA6zpGank0WaQg QLPlGr4eQt00vbMkuekwD23eD562ba8CICVlRiePmBunDTantHGo0q35SZPteKj0 u/4l4nxWbiTbAiAeWb6MLmdayZp/vrZo5O7yoagUcfDjK/tPglWMnmXbcQIgFKiP k6RAkp/k3ZsF0O1KJwC9n3UYl/SsMrp7S2Pj/Nk= -----END RSA PRIVATE KEY----- __EOF__; $public = <<<__asdfadF__ -----BEGIN PUBLIC KEY----- MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAOhTYPPN5g/2CSnWflL39tXhvUUXNZYc d57TBiR2+ds7iB4bjivBIujlivE0xD8/GQD+8Pe12A4oYjmnHqfa620CAwEAAQ== -----END PUBLIC KEY----- __asdfadF__; $private_key = openssl_pkey_get_private($private_key_string); $public = openssl_pkey_get_public($public); $a = (string) hash('sha256','abc-abc-abc-abc.1499935378002'); openssl_private_encrypt((string)hash('sha256','abc-abc-abc-abc.1499935378002'),$crypted,$private_key); echo "pre: ".base64_encode($crypted)."\n"; openssl_public_decrypt ( $crypted,$decrypted, $public); echo "decrypted: $decrypted\n";
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/BHbbA
function name:  (null)
number of ops:  42
compiled vars:  !0 = $private_key_string, !1 = $public, !2 = $private_key, !3 = $a, !4 = $crypted, !5 = $decrypted
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   ASSIGN                                                   !0, '-----BEGIN+RSA+PRIVATE+KEY-----%0AMIIBOQIBAAJBAOhTYPPN5g%2F2CSnWflL39tXhvUUXNZYcd57TBiR2%2Bds7iB4bjivB%0AIujlivE0xD8%2FGQD%2B8Pe12A4oYjmnHqfa620CAwEAAQJAUMAiU7t%2BOo%2F%2B0V7vW3E6%0Ah07GFYyioIFWhoq8eNItuCgIXCD3yA9Ox98JwYS9q%2F1WQiuw%2FgISOM%2BuZlaWlpKx%0AdQIhAPzXgBaMVpuJmMdfgQ2Hhdg5dUUKBnSdOOLCjwv9AHujAiEA6zpGank0WaQg%0AQLPlGr4eQt00vbMkuekwD23eD562ba8CICVlRiePmBunDTantHGo0q35SZPteKj0%0Au%2F4l4nxWbiTbAiAeWb6MLmdayZp%2FvrZo5O7yoagUcfDjK%2FtPglWMnmXbcQIgFKiP%0Ak6RAkp%2Fk3ZsF0O1KJwC9n3UYl%2FSsMrp7S2Pj%2FNk%3D%0A-----END+RSA+PRIVATE+KEY-----'
   17     1        ASSIGN                                                   !1, '-----BEGIN+PUBLIC+KEY-----%0AMFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAOhTYPPN5g%2F2CSnWflL39tXhvUUXNZYc%0Ad57TBiR2%2Bds7iB4bjivBIujlivE0xD8%2FGQD%2B8Pe12A4oYjmnHqfa620CAwEAAQ%3D%3D%0A-----END+PUBLIC+KEY-----'
   24     2        INIT_FCALL_BY_NAME                                       'openssl_pkey_get_private'
          3        SEND_VAR_EX                                              !0
          4        DO_FCALL                                      0  $8      
          5        ASSIGN                                                   !2, $8
   26     6        INIT_FCALL_BY_NAME                                       'openssl_pkey_get_public'
          7        SEND_VAR_EX                                              !1
          8        DO_FCALL                                      0  $10     
          9        ASSIGN                                                   !1, $10
   28    10        INIT_FCALL                                               'hash'
         11        SEND_VAL                                                 'sha256'
         12        SEND_VAL                                                 'abc-abc-abc-abc.1499935378002'
         13        DO_ICALL                                         $12     
         14        CAST                                          6  ~13     $12
         15        ASSIGN                                                   !3, ~13
   30    16        INIT_FCALL_BY_NAME                                       'openssl_private_encrypt'
         17        INIT_FCALL                                               'hash'
         18        SEND_VAL                                                 'sha256'
         19        SEND_VAL                                                 'abc-abc-abc-abc.1499935378002'
         20        DO_ICALL                                         $15     
         21        CAST                                          6  ~16     $15
         22        SEND_VAL_EX                                              ~16
         23        SEND_VAR_EX                                              !4
         24        SEND_VAR_EX                                              !2
         25        DO_FCALL                                      0          
   31    26        INIT_FCALL                                               'base64_encode'
         27        SEND_VAR                                                 !4
         28        DO_ICALL                                         $18     
         29        CONCAT                                           ~19     'pre%3A+', $18
         30        CONCAT                                           ~20     ~19, '%0A'
         31        ECHO                                                     ~20
   33    32        INIT_FCALL_BY_NAME                                       'openssl_public_decrypt'
         33        SEND_VAR_EX                                              !4
         34        SEND_VAR_EX                                              !5
         35        SEND_VAR_EX                                              !1
         36        DO_FCALL                                      0          
   36    37        ROPE_INIT                                     3  ~23     'decrypted%3A+'
         38        ROPE_ADD                                      1  ~23     ~23, !5
         39        ROPE_END                                      2  ~22     ~23, '%0A'
         40        ECHO                                                     ~22
         41      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
144.16 ms | 1392 KiB | 17 Q