So the problem is B is essentially forging A's private key by redirecting A's messages to whoever they want to while A thinks they're sending them to B and C thinks the messages are directly from A and has no idea about Bs involvement?
It's not forging the key, they can't make their own messages, or even read the messages A sent them that they're redirecting. Everything else, yeah that's pretty much right.
Thanks!
I think I get it now.
So the problem is B is essentially forging A's private key by redirecting A's messages to whoever they want to while A thinks they're sending them to B and C thinks the messages are directly from A and has no idea about Bs involvement?
It's not forging the key, they can't make their own messages, or even read the messages A sent them that they're redirecting. Everything else, yeah that's pretty much right.