How to Create a Self-signed Client Certificate with OpenSSL

I have posted before about creating self-signed client certificates with makecert utility. Today I’d like to describe step by step how we can do it with OpenSSL.

Client certificates are essential for mutual SSL authentication. During development and testing, I usually need self-signed ones for simplicity.

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Mert Ilis

Mert Ilis

I’m a software development enthusiast who likes trying different web technologies and adding value to his team.