752f884c23
sphinx: Removed per-hop payloads, will be replaced by hop_data
This is in preparation for the migration to `hop_data` which contains
all fields, and uses the `short_channel_id` instead of the pubkey.
8 years ago
bc0039e8c0
sphinx: Onion reply wrapping and unwrapping
Signed-off-by: Christian Decker <decker.christian@gmail.com>
8 years ago
09b31624f0
sphinx: Creating copy of sphinx for new daemon
Keeping both the legacy daemon and the new daemon happy with the
restructure is a lot of work, so we just don't do it :-)
8 years ago
8a84e961ed
daemon/sphinx: support modern v0 hop payload.
This just means we put the outgoing_cltv_value where we used to put zeroes.
The old daemon simply ignores this, but the new one should check it as per
BOLT 4.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
8 years ago
8146b838e8
daemon/sphinx: split handling.
We want to use HSM to do the ECDH part, so split that out.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
8 years ago
cae283087d
sphinx: Committing the onion packet to the payment-hash
The sphinx onion packet now commits to the HTLC payment-hash it is
associated with. This prevents replay attacks with the same onion.
8 years ago
91b17d45d8
sphinx: Removing last vestiges of the end-to-end payload
So far this was simply set to a zero-length end-to-end payload. We
don't have any plans of re-adding it for the moment, so let's get rid
of the unused code.
8 years ago
a4fdaab5b3
Use global secp256k1_ctx instead of passing it around.
If I'd known how large this patch would be (though trivial), I'd
have done it in parts.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
8 years ago
41299b679c
sphinx: process_onionpacket doesn't modify the packet.
Make it const.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
8 years ago
8599d63256
sphinx: add brackets around constant definition
Always do this, otherwise "MACRO * foo" can have unexpected results.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
8 years ago
7bb5c279a8
sphinx: Implemented sphinx onion routing
Implements a spec-compliant sphinx onion routing format. The format has
been cross-checked with the go implementation
cdecker/lightning-onion@b9e117e.
9 years ago
Christian Decker
Rusty Russell