BIS, if you can't fix this issue right away, maybe you can add "skip signature verification for HCs" option, same as you have for file patching for HC?

BIS, please, do something about this in 1.60.
It's been more than a year without HC :(
Can we just have an option for skipping signature verification for HCs (like you can allow file patching only for HCs)? This will not solve a problem, of course, but at least it will allow us to use HC.

Can confirm. Tested on debian 8.x and ubuntu 14.04 LTS, both either crashes with signature verification timeout or just fails to verify signatures (BIS A3 ones, not mods) just at start.

Nope. It times out after some time and not booting into game, sadly. But at least it passes signature verification (it seems)

In my case there is 549 *.pbo files. I will try to check with less amount, but yeah, this seems to be an issue.

Thank you @cuel for info. I removed some stuff from my modpack, ended up woth 505 pbo files (but not all actually used, ie optionals in ACE) and HC started working.