How do clients extract the public key from a self-signed certificate?

I have gone over:

Why do we need to sign the self-signed certificate?
Basic self-signed certificate questions
Is a self-signed SSL certificate much better than nothing?

I am new to cryptography and security. I am trying to understand the… Continue reading How do clients extract the public key from a self-signed certificate?

Independent C library or function (on Linux) to programmatically generate a self-signed certificate [closed]

Is there a simple C library or function to programmatically generate a self-signed certificate in C on Ubuntu? Of course, one can execute a simple system("….") call to execute a CLI. I am looking for a native, small, stand-alo… Continue reading Independent C library or function (on Linux) to programmatically generate a self-signed certificate [closed]

While importing certificates in keystore, do we treat these like CA root certificates?

When we need to call an internal domain via HTTPS, Java doesn’t allow it because it doesn’t recognize the certificate that those domain web servers are sending (probably because those certificates are self-signed given that these domains a… Continue reading While importing certificates in keystore, do we treat these like CA root certificates?

Chrome: why is invalid certificate usage for resources loaded from localhost disabled?

In chrome there is a flag called: allow-insecure-localhost. As far as I can tell all it does is block localhost connection over tls if the certificate is self signed.

Why is this feature turned off by default?
Does it affect regular user… Continue reading Chrome: why is invalid certificate usage for resources loaded from localhost disabled?