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Aug 16th, 2018
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  1. function decrypt($input)
  2. {
  3. global $key;
  4.  
  5. if($input == '') return $input;
  6. $data = explode(',', base64_decode($input));
  7. if(count($data) != 2) return $input;
  8. $input = $data[0];
  9. $size = $data[1];
  10. $iv_size = mcrypt_get_iv_size(MCRYPT_GOST, MCRYPT_MODE_ECB);
  11. $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
  12. $input = mcrypt_decrypt(MCRYPT_GOST, $key, $input, MCRYPT_MODE_ECB, $iv);
  13. return substr($input,0,$size);
  14. }
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