What are and how do I use OpenSSL BIO pairs?
key-pair, openssl
Solution
A BIO in OpenSSL is similar to a File handle. You use a pair of them to communicate with each other securely like you would with two sockets. The best explanation I've found is here.
I also got a lot of use out of Herong Yang's site a few months ago when I had to write an application using OpenSSL. The sections on creating and signing certificates using OpenSSL and keytool were a big help when it came to testing my application.
Problem
What exactly is a BIO pair in OpenSSL, and how is it intended to be used? I've already checked the OpenSSL docs, but any details are few and far between.