Prop. 159 more updates
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@ -3101,6 +3101,7 @@ SessionRequest (Type 0)
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------------------------
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Alice sends to Bob.
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Size: 80 + payload size.
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Long header.
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Noise content: Alice's ephemeral key X
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@ -3255,14 +3256,6 @@ Payload
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Notes
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`````
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- When the published address is "NTCP", Bob supports both NTCP and SSU2 on the
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same port. For compatibility, when initiating a connection to an address
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published as "NTCP", Alice must limit the maximum size of this message,
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including padding, to 287 bytes or less. This facilitates automatic protocol
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identification by Bob. When published as "SSU2", there is no size
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restriction. See the Published Addresses and Version Detection sections
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below.
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- The unique X value in the initial ChaCha20 block ensure that the ciphertext is
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different for every session.
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@ -3377,6 +3370,7 @@ SessionCreated (Type 1)
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------------------------
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Bob sends to Alice.
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Size: 80 + payload size.
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Noise content: Bob's ephemeral key Y
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Noise payload: datetime, options, relay tag, and padding blocks
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@ -3522,6 +3516,7 @@ Payload
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- Address block
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- Relay Tag block (optional)
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- Options block (optional)
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- Termination block (optional, if session is rejected)
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- Padding block (optional)
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@ -3647,6 +3642,7 @@ SessionConfirmed (Type 2)
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-----------------------------
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Alice sends to Bob.
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Size: 80 + payload size.
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Noise content: Alice's static key
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Noise payload part 1: None
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@ -4020,9 +4016,12 @@ decrypt the Session Request message to generate a Retry message in response.
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Retry (Type 9)
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-------------------------------
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Bob sends to Alice.
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Size: 48 + payload size.
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TODO encrypted? to what key?
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Noise payload: Only padding block
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Noise payload: See below.
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Raw contents:
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@ -4088,7 +4087,8 @@ Unencrypted data (Poly1305 authentication tag not shown):
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Source Connection ID :: As received from Alice in Session Request
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Token :: 8 byte unsigned integer, nonzero
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Token :: 8 byte unsigned integer, randomly generated by Bob, nonzero,
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or zero if session is rejected and a termination block is included
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{% endhighlight %}
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@ -4096,10 +4096,13 @@ Unencrypted data (Poly1305 authentication tag not shown):
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Payload
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```````
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- DateTime block
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- Termination block
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- Address block
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- Options block (optional)
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- Termination block (optional, if session is rejected)
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- Padding block (optional)
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Notes
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`````
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This is NOT a standard Noise message and is not part of the handshake.
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