Re: [lwip-users] HTTPS support in lwip

[Noam Weissman]

Hi Simon,

Is there a way to limit the number of concurrent HTTP connection, say to one ?

If this can be done we may be able to run HTTPS with an overhead of about 40K 
for SSL/TLS

BR,
Noam.

-----Original Message-----
From: lwip-users [mailto:address@hidden On Behalf Of Simon Goldschmidt
Sent: Thursday, May 18, 2017 3:07 PM
To: address@hidden
Subject: Re: [lwip-users] HTTPS support in lwip

Sandeep wrote:
> Could you please give me a rough figure of how much RAM it may use, 
> just to know whether it is viable in the above said system?

The most consuming part is that TLS requires 16 kByte per direction and 
connection as encrypt/decrypt buffer.
As modern web browsers open multiple connections (~6?), that means you need >= 
192 Byte only for TLS.

Of course that can be stripped down, but that's additional work to do.

Simon

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