[tor-dev] A layered transport

Hi: I've discovered that the GFW normally doesn't block https protocols. We can use a https front tier to distribute connections to actual bridges. The front tier encrypts an internal address identifier with its private key (no matching public key or public algorithm) and returns to user the encrypted identifier, part of which also includes the user's chosen password. Then when submitting requests, the user encrypt again with his password the items such as his timestamp, broswer headers. The request line to https server is no different from an ordinary one and include both the user encrypted item and front tier encrypted item. After the connection is established, data is relayed inside https between bridge and user.