From c53bb766ee2e1e96c12bfec7a3606bef51c7111c Mon Sep 17 00:00:00 2001
From: zzz <zzz@i2pmail.org>
Date: Sat, 31 Jul 2021 12:17:57 -0400
Subject: [PATCH] Clarifications for prop. 157
---
i2p2www/spec/tunnel-creation-ecies.rst | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/i2p2www/spec/tunnel-creation-ecies.rst b/i2p2www/spec/tunnel-creation-ecies.rst
index 98dd571c6..71a55d572 100644
--- a/i2p2www/spec/tunnel-creation-ecies.rst
+++ b/i2p2www/spec/tunnel-creation-ecies.rst
@@ -792,9 +792,7 @@ keydata = HKDF(ck, ZEROLEN, "SMTunnelReplyKey", 64)
replyKey = keydata[32:63]
ck = keydata[0:31]
- Layer key:
- Layer key is always AES for now, but same KDF can be used from Chacha20
-
+ AES Layer key:
keydata = HKDF(ck, ZEROLEN, "SMTunnelLayerKey", 64)
layerKey = keydata[32:63]
@@ -815,6 +813,9 @@ keydata = HKDF(ck, ZEROLEN, "SMTunnelReplyKey", 64)
{% endhighlight %}
+Note: The KDF for the IV key at the OBEP is different from that for the other hops,
+even if the reply is not garlic encrypted.
+
Record Encryption
```````````````````````
--
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