Have you ever looked for a Windows based simple user interface for creating your Certificate Signing Requests (CSR) or just to create a Self Signed Certificate ? Then OpenSSLUI is for you.
If you need to create OpenSSL based KEYs either for a home brewed singing authority or to create a Signing request
Sometimes you need to request for a signed certificate from a Certificate Authority. That is when you need to generate a Signing Requests
If you are just curious and want to experiment with a self signed SSL certificate or you are just fine with a self signed certificate , then this tool is for you
Certificate Signing Request must be signed by some Signing Authority if that is to be used as trusted. This tool help you sign a request
When you need to bundle your certificates in PKCS12 format it is nice to have a handly tool which does that for you, this tool helps that too