Secure data transfer protocols for web-server on Arduino

Tell me please, what are the requirements to the protocol https, and what other security protocols data transfer can be used for web-server on Arduino?

check here

AWOL:
check here

it's my post. But I want to know another security protocols, that can be used on arduino.

Vitaliy_Livnov:
it's my post. But I want to know another security protocols, that can be used on arduino.

You can also read here. That's my post.

What's your problem with understanding about "Arduino" and "https protocol"?

https is the standard encryption protocol, which is used by all major webbrowser applications on PCs, tablet computers and smartphones.

But other than http, which uses very little resources and can be implemented on small microcontrollers, the https secure and encrypted protocol requires much more RAM, so that it is useless trying to implement https with systems that have less than about 200KB (0.2MB, 0.0002GB) at least. An Atmega328 has 2 KB (0.002MB, 0.000002GB) of RAM. The RAM needed for https is by factor 100 higher (at least) than an Atmega328 has built inside.

If you want to create a different (less secure, less RAM requiring) encryption protocol, you will not only have to create servers using that protocol, but you also will have to develop clients which can access and decode the non-standard encryption protocol.

So not a single standard weblient can be used, if the server is doing non-standard encryption.
Webclient and webserver need to speak the same encryption language to understand each other.

Do you also want to create weblients of your own on different computer platforms, which then will communicate with your Arduino webservers using non-standard encryption? Or do you want to send encrypted messages from one Arduino to another Arduino across the Internet?

Perhaps you better stop asking silly questions about things that are not possible, and you start explaining what you want to achieve.

Thank You. I want to use standart encryption protocol in low-cost embedded system.

Then Arduino is probably not your thing, or you have to upgrade to a Yún, Due with wifi, or something that offers the right amount of memory and processor power.

Vitaliy_Livnov:
I want to use standart encryption protocol in low-cost embedded system.

I see, you are just starting new threads in this forum for the reason to always harping on the same string.

Boring!