Google announced that HTTPS sites, SSL secured can now have Google AdSense ads on them without an issue.

For this to work, you simply need to go into your AdSense console, click on your existing ad units and get the revised code. The revised or new code will work on both HTTPS and HTTP web sites without an issue.

Google’s Sandor Sas, an AdSense Software Engineer, added:

The big question publishers are asking…. What took so long Google?

Forum discussion at Google+.