How to get an epub registered (ADE, DRM) on android phone?

Hello guys,

In the moment I'm travelling for a few month and only took the most necessary stuff with me. I now decided to buy a few more travel guidebooks online. I got a kobo aura which I use all the time. But now I don't know how to register my DRM secured books to get it to work with my kobo. I do not have a pc with me, and as fare as I know there is no android version of ADE. Does anybody got an idea how to hurt around this problem?

Thank you.