Signing RPMs

[Jitesh Shah]

So, I picked up the sign_unsigned.py script from releng. I replaced the keys in there with our keys, tweaked some minor stuff here and there and managed to get it running. 
I use it as 
"./sign_unsigned.py --level <level> <tag-name>"
and it runs alright. I can see that the signatures are cached under the sigcache directory (but NOT embedded in the rpms themselves, which makes sense since the rpm can probably be a part of different tags and might be signed differently within each tag)

So, I thought, well, mash would be the one which'll embed the keys in the rpms. So, I set strict_keys to True.. added my key to the keys list in my .mash file. mash has no problems with the rpms and it can verify the signatures alright. But, it still doesn't embed the signatures in the rpm (is it supposed to?). So, the created repository still has all rpms unsigned. 

What am I missing here? where to the rpms get signed actually?

Regards,
Jitesh