diff --git a/router/doc/udp.html b/router/doc/udp.html
index 2a71dfd0a..bb93dde15 100644
--- a/router/doc/udp.html
+++ b/router/doc/udp.html
@@ -1,4 +1,4 @@
-$Id: udp.html,v 1.8 2005/04/04 12:21:30 jrandom Exp $
+$Id: udp.html,v 1.9 2005/04/05 10:28:54 jrandom Exp $
Secure Semireliable UDP (SSU)
DRAFT
@@ -138,9 +138,13 @@ around briefly, to address packet loss and reordering.
that many byte representation of Alice's IP address
2 byte port number (unsigned, big endian 2s complement)
4 byte relay tag which Alice can publish (else 0x0)
- 40 byte DSA signature of the critical exchanged data, encrypted
- with another layer of encryption using the negotiated sessionKey.
- The IV is reused here (but with the sessionKey, not the introKey).
+ 4 byte timestamp (seconds from the epoch) for use in the DSA
+ signature
+ 40 byte DSA signature of the critical exchanged data
+ (Alice's IP + Alice's port + Bob's IP + Bob's port + Alice's
+ new relay tag + Bob's signed on time), encrypted with another
+ layer of encryption using the negotiated sessionKey. The IV
+ is reused here.
8 bytes padding, encrypted with an additional layer of encryption
using the negotiated session key as part of the DSA block
N bytes, currently uninterpreted (later, for challenges)
@@ -159,17 +163,19 @@ around briefly, to address packet loss and reordering.
+----+----+----+----+----+----+----+----+
|size| that many byte IP address (4-16) |
+----+----+----+----+----+----+----+----+
- | Port (A)| public relay tag | |
- +----+----+----+----+----+----+ |
- | DSA signature |
- | |
- | |
- | |
- | +----+----+
- | |
+ | Port (A)| public relay tag | signed
+----+----+----+----+----+----+----+----+
- (8 bytes of padding) | |
- +----+----+----+----+----+----+ |
+ on time | |
+ +----+----+ |
+ | DSA signature |
+ | |
+ | |
+ | |
+ | +----+----+----+----+----+----+
+ | | (8 bytes of padding)
+ +----+----+----+----+----+----+----+----+
+ | |
+ +----+----+ |
| arbitrary amount |
| of uninterpreted data |
. . .
@@ -180,7 +186,7 @@ around briefly, to address packet loss and reordering.
Peer: |
- Bob to Alice |
+ Alice to Bob |
Data: |
|
Key used: |
sessionKey |
@@ -213,6 +222,8 @@ bits 4-7: total identity fragments
. . .
| |
+----+----+----+----+----+----+----+----+
+ | signed on time | |
+ +----+----+----+----+ |
| arbitrary amount of uninterpreted |
| data, up from the end of the |
| identity key to 40 bytes prior to |