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Earle F. Philhower, III f6dd826437

Fix MFLN probe and allow returning whether MFLN succeeded or not after a connection. (#6000 )

Fixes #5996

* Add extensions to probe message for EC, others

probeMFLN was failing on some connection attempts to servers which only
supported EC based ciphers because it did not include the proper TLS
handshake extensions to list what kinds of ECs it supported.

Add those to the probeMFLN ClientHello message to make probes pass.

* Add client.getMFLNStatus method, returns MFLN state

After a connection it is useful to check whether MFLN negotiation
succeeded.  getMFLNStatus returns a bool (valid only after
client.connect() succeeds, of course) indicating whether the requested
buffer sizes were negotiated successfully.

2019-04-25 12:40:26 -07:00

bearssl @ a143020fe6

Fix MFLN probe and allow returning whether MFLN succeeded or not after a connection. (#6000 )

2019-04-25 12:40:26 -07:00

Makefile

Update to latest BearSSL code. (#5669 )

2019-01-25 18:59:05 +00:00

README.md

Add a build directory for libbearssl.a (#4736 )

2018-05-23 19:50:26 -07:00

README.md

BearSSL ESP8266 builder

This directory contains the git submodule for the ESP8266 ported bearssl low-level library, a port of BearSSL

If you are only working on the BearSSL:: namespace functions in the Arduino ESP8266WiFi library (BearSSL::WiFiClientSecure, BearSSL::WiFiServerSecure, etc.) you do NOT need to work in this directory.

Normal users can simply use the libbearssl.a file already included in the Arduino repo. Experienced users looking to work on the underlying BearSSL-ESP8266 ported library can use this directory to automate the build flow.

Prerequisites

The tools directory needs to be populated (i.e. Arduino IDE should be able to compile an executable probect. get.py should ensure this).

UNIX-like system (Linux, Mac):

If you need to change the *.t0 (Forth-like language) you will need a .NET-compatible runtime (such as mono under Linux) to rebuild the resulant .c files.

For Windows (untested)

Microsoft's .NET runtime must be installed to run the .t0->.c workflow.

Building

make all: Init the submodule, if needed, then build but do not install the library
make install: Init the submodule, if needed, then build and copy the library to the standard location in tools/sdk/lib

Editing the library

https://github.com/earlephilhower/bearssl-esp8266 is the current repository for this library. A git remote to the original BearSSL sources from https://bearssl.org/git/BearSSL is added on submodule init. You can either manually do pulls, or make merge-upstream to bring in any BearSSL upstream changes.

Documentation in the library README-esp8266 and git log describes the changes done.

Feel free to drop me a line at earlephilhower@yahoo.com if you have questions.

-Earle F. Philhower, III