Diablo 2 and Diablo 2 Lord of Destruction expansion cd key. Keytool -export -alias clientprivate -keystore client.private -file temp.key -storepass clientpw And here's the command to insert the client's private key into its own keystore: keytool -import -noprompt -alias clientpublic -keystore client.public -file temp.key -storepass public We'll also extract and store the server's public key. Keytool generate public private key pair.