code signing certification

hi,

It's a mystery to me exactly what's required here. There are companies in the listing provider in the documentation for the Exchange (https://www.adobeexchange.com/resources) which provide certificates for Adobe AIR software:

https://www.globalsign.com/code-signing/adobe-air.html

http://www.thawte.com/code-signing/index.html

and there are others that do the same thing but are not listed:

http://www.digicert.com/code-signing/adobe-air.htm

Does anyone have any guidance on whether the certifcates provided by these companies are exactly what is needed for Configurator? Will such a certification be in the "p12" format?

(It might be quite expensive to make a mistake here!)

thanks for any advice,

John