/**
* Convert a binary string into a hexadecimal string without cache-timing
* leaks
*
* @param string $bin_string (raw binary)
* @return string
*/
public static function hexEncodeUpper(string $bin_string) : string
{
return Hex::encodeUpper($bin_string);
}
/**
* RFC 4648 Base16 decoding
*
* "foo" -> "666F6F"
*
* @param string $str
* @return string
*/
public function base16Encode(string $str) : string
{
return Hex::encodeUpper($str);
}