Ummm, for those who have forgotten their password, please create a new set of keys and remember the password this time. More detailed guides are in the user guide, or online help. One thing to remember about your keys. They are not magical. They are blocks of text.
Text is universal, easy to copy, and easy to share.
When the package creates your key pair, you will be prompted to post your keys to a default server. It saves some time to do so then. Select your key pair and then click Copy on the Edit menu. Open your email message editor . Paste to the page in the editor.