Security over SONET/SDH

What security protocols are folks using to protect SONET/SDH?

At what speeds?

"Excuse me NSA, can I have export approval for one KG-530 SDH encryptor?" What are the odds :slight_smile:

And how would we know that the "export model" isn't simply providing a more convenient backdoor for the NSA?


I assumed that the latter is what "NSA Approved" means.

crypto-ag anyone?