I am building an application that use SecureSocket between java and c#.
I found that java need a "keystore" to communicate while c# use cert like .cer or .p12 or .pfx , etc.
I have difficulties making them communicate.

Can anyone gives examples on how to make the "keystore" using java keytool and how to generate the corrsponding cert for c#?
And gives example "hello world code" that make them communicate?
Thanks so much.