Public-key cryptography uses of a pair of matching keys, a public key and a private key, which are created at the same time using a key generation utility (ssh-keygen.exe is the key generation utility used in OpenSSH). You will need physical access to both PCs. The information for this guide was tested on PCs with WinXP and Lubuntu and may be applicable to other versions of Linux and Windows. This guide demonstrates how to setup automatic OpenSSH RSA public-key authentication for Windows (using OpenSSH v3.8.1p1-1) and Linux (using OpenSSH v5.3p1) PCs currently working with password authentication on a local network.
