original_string: private function makeKey($block, $valContext)
      {
          $pwarray = str_repeat("\0", 64);
  
          for ($i = 0; $i < 5; $i++) {
              $pwarray[$i] = $valContext[$i];
          }
          
          $pwarray[5] = chr($block & 0xff);
          $pwarray[6] = chr(($block >> 8) & 0xff);
          $pwarray[7] = chr(($block >> 16) & 0xff);
          $pwarray[8] = chr(($block >> 24) & 0xff);
  
          $pwarray[9] = "\x80";
          $pwarray[56] = "\x48";
  
          $md5 = new PHPExcel_Reader_Excel5_MD5();
          $md5->add($pwarray);
  
          $s = $md5->getContext();
          return new PHPExcel_Reader_Excel5_RC4($s);
      }
code: private function makeKey($block, $valContext)
      {
          $pwarray = str_repeat("\0", 64);
  
          for ($i = 0; $i < 5; $i++) {
              $pwarray[$i] = $valContext[$i];
          }
          
          $pwarray[5] = chr($block & 0xff);
          $pwarray[6] = chr(($block >> 8) & 0xff);
          $pwarray[7] = chr(($block >> 16) & 0xff);
          $pwarray[8] = chr(($block >> 24) & 0xff);
  
          $pwarray[9] = "\x80";
          $pwarray[56] = "\x48";
  
          $md5 = new PHPExcel_Reader_Excel5_MD5();
          $md5->add($pwarray);
  
          $s = $md5->getContext();
          return new PHPExcel_Reader_Excel5_RC4($s);
      }
code_tokens: private function makeKey ( $ block , $ valContext ) { $ pwarray = str_repeat ( "\0" , 64 ) ; for ( $ i = 0 ; $ i < 5 ; $ i ++ ) { $ pwarray [ $ i ] = $ valContext [ $ i ] ; } $ pwarray [ 5 ] = chr ( $ block & 0xff ) ; $ pwarray [ 6 ] = chr ( ( $ block >> 8 ) & 0xff ) ; $ pwarray [ 7 ] = chr ( ( $ block >> 16 ) & 0xff ) ; $ pwarray [ 8 ] = chr ( ( $ block >> 24 ) & 0xff ) ; $ pwarray [ 9 ] = "\x80" ; $ pwarray [ 56 ] = "\x48" ; $ md5 = new PHPExcel_Reader_Excel5_MD5 ( ) ; $ md5 -> add ( $ pwarray ) ; $ s = $ md5 -> getContext ( ) ; return new PHPExcel_Reader_Excel5_RC4 ( $ s ) ; }
docstring: Make an RC4 decryptor for the given block
  
  @var int    $block      Block for which to create decrypto
  @var string $valContext MD5 context state
  
  @return PHPExcel_Reader_Excel5_RC4
docstring_tokens: Make an RC4 decryptor for the given block