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Old 06-11-2019, 10:37 AM   #1
Registered: Mar 2019
Distribution: OpenBSD/Alpine Linux
Posts: 117

Rep: Reputation: Disabled
Unhappy Libressl Tutorial

Hello everyone, I need some help and pointers. I am working on a project that requires me to make an HTTPS connection in C. The way I am doing this is by using Libressl and creating a connection.c (where the connection will be made) and a repos.h (where the repo I am connecting to will be defined). The project is to simply make the connection and once the connection is made have the program print "Connected to Repository". For the most I am good on everything, but I am having some trouble getting started with Libressl, I can't find any documentation for it or tutorials to use to learn how it works. Does anyone have any links to tutorials or documentation for Libressl? I am sorry to post this type of question, but I am just having a hard time finding any reference material. With that I also have one more question, the aim of the final product is to minimal and secure (hence Libressl over Openssl, I am also on an OpenBSD machine which uses Libressl) is there a way to not have to throw all of Libressl in on this program? Like not need to have Libressl as a dependency, but actually only have the header or part of the library I need? Thank you in advance, sorry for the noobish question...
Old 06-11-2019, 12:32 PM   #2
Registered: Sep 2018
Distribution: Debian, CentOS, FreeBSD
Posts: 204

Rep: Reputation: Disabled
I advise against statically linking a TLS library. If a vulnerability appears in the library, you would have to recompile and redistribute your application. I would also make sure that whatever TLS library you use is available in the repositories of the OSs you are targeting. Sticking to shared libraries available in repositories saves you from having to update your program every time a library changes.

The LibreSSL source code ships with man pages. Those are the documentation.

If I remember correctly, LibreSSL is a drop in replacement for OpenSSL, so any OpenSSL tutorial or doc SHOULD work.
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