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Unverified Commit c53bb766 authored by zzz's avatar zzz
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Clarifications for prop. 157

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i2p2www/spec/tunnel-creation-ecies.rst
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...@@ -792,9 +792,7 @@ keydata = HKDF(ck, ZEROLEN, "SMTunnelReplyKey", 64) ...@@ -792,9 +792,7 @@ keydata = HKDF(ck, ZEROLEN, "SMTunnelReplyKey", 64)
replyKey = keydata[32:63] replyKey = keydata[32:63]
ck = keydata[0:31] ck = keydata[0:31]
Layer key: AES Layer key:
Layer key is always AES for now, but same KDF can be used from Chacha20
keydata = HKDF(ck, ZEROLEN, "SMTunnelLayerKey", 64) keydata = HKDF(ck, ZEROLEN, "SMTunnelLayerKey", 64)
layerKey = keydata[32:63] layerKey = keydata[32:63]
...@@ -815,6 +813,9 @@ keydata = HKDF(ck, ZEROLEN, "SMTunnelReplyKey", 64) ...@@ -815,6 +813,9 @@ keydata = HKDF(ck, ZEROLEN, "SMTunnelReplyKey", 64)
{% endhighlight %} {% 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 Record Encryption
``````````````````````` ```````````````````````
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