??????? ??? ??? ??? ??? ?? ????? ?? ? ?? ??? ??? ??? ?????. ???, ??, ???? ?? ??? ???? ???? ?? ??? ??? ???? ????, ??? ???? ??? ?????? ???? ???? ? ?? ???? ?? ? ????.Conclusion-to-end encryption means that only the sender and recipients maintain the keys to encrypt and decrypt messages. The provider service provider who controls the method by which t