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- function decrypt($input)
- {
- global $key;
- if($input == '') return $input;
- $data = explode(',', base64_decode($input));
- if(count($data) != 2) return $input;
- $input = $data[0];
- $size = $data[1];
- $iv_size = mcrypt_get_iv_size(MCRYPT_GOST, MCRYPT_MODE_ECB);
- $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
- $input = mcrypt_decrypt(MCRYPT_GOST, $key, $input, MCRYPT_MODE_ECB, $iv);
- return substr($input,0,$size);
- }
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