You need to set the crosswalk version to 10. You can do this in the intel sdk. Click on project -> build settings -> Android-Crosswalk. Then scroll down to "Crosswalk version" where "stable" is filled in and change it to "beta". Sometimes it is really pain in the amboss that intel doesn't give correct instructions. I found the solution somewhere else on the web.
For everybody who ran into this:
Crosswalk version = "stable" -> Crosswalk 7 with openSSL error
Crosswalk version = "beta" -> Crosswalk 10 without openSSL error
I don't know why they don't make a new stable of it if the old one has such a bug. Forcing developers to use the beta version in production doesn't feel right. I think this will be updated soon.