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SSU: Document that the Bob-to-Alice peer test message

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must be in-session as of API 0.9.52.

Already implemented by i2pd; Java I2P fixes will be in 1.6.0.
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zzz
2021-10-19 14:31:10 -04:00
parent 5344482dbe
commit ddfa9b3063
2 changed files with 23 additions and 11 deletions
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17
i2p2www/spec/ssu.rst
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@@ -3,8 +3,8 @@ SSU Protocol Specification
==========================
.. meta::
:category: Transports
:lastupdated: 2021-06
:accuratefor: 0.9.50
:lastupdated: 2021-10
:accuratefor: 0.9.52
.. contents::
@@ -1016,8 +1016,10 @@ Note: IPv6 peer testing is supported as of release 0.9.27.
3. When sent from Charlie to Bob: Bob/Charlie sessionKey
4. When sent from Bob to Alice: Alice's introKey, as
received in the PeerTest message from Alice
4. When sent from Bob to Alice: Alice/Bob sessionKey
(or for Bob prior to 0.9.52, Alice's introKey, as
received in the PeerTest message from Alice,
see note below)
5. When sent from Charlie to Alice: Alice's introKey, as
received in the PeerTest message from Bob
@@ -1107,6 +1109,13 @@ Notes
* As of release 0.9.15, Alice must have an established session with Bob and use
the session key.
* Prior to API version 0.9.52, in some implementations, Bob replied to Alice using
Alice's intro key rather than the Alice/Bob session key, even though
Alice and Bob have an established session (since 0.9.15).
As of API version 0.9.52, Bob will correctly use the session key in all
implementations, and Alice should reject a message received from Bob
with Alice's intro key if Bob is API version 0.9.52 or higher.
* Extended options in the header: Not expected, undefined.
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