Fwd: SecureSession protocol version 1.0 ( was Re: [Vm-dev] Re: SecureSes

I thought you may be interested in this.

Thank you,
Robert


-------- Forwarded Message --------
Subject: 	SecureSession protocol version 1.0 ( was Re: [Vm-dev] Re: 
SecureSession frame types)
Date:   Mon, 21 Dec 2015 20:42:12 -0500
From:   Robert Withers <robert(_dot_)w(_dot_)withers(_at_)gmail(_dot_)com>
To: 	Squeak Virtual Machine Development Discussion 
<vm-dev(_at_)lists(_dot_)squeakfoundation(_dot_)org>, Pharo Development List 
<pharo-dev(_at_)lists(_dot_)pharo(_dot_)org>, 5gangip(_at_)ietf(_dot_)org


I updated with all the feedback and here is a version 1.0 pdf 
specification. I appreciate any comments or suggestions you may have for 
this.
   https://www.dropbox.com/s/ywu9pjxrfvg1hys/FrameTypes.pdf?dl=0


Thank you,
Robert

On 12/20/2015 10:51 AM, Robert Withers wrote:
> More, sorry. I left out the msgSize in the FEC spec. Let me reorder 
> the tagging, fit the 3 bytes of normal msgSpec into 4bytes and thusly...
>
> ---Default non-FEC msgSpec + header + payload layout:
>
> - 8bytes (X) messageSpecification...
> -
> - (32bits...)
> - 4bits tagging
> - 6bits multicastSymbol
> - 6bits messageVersion
> - 2bits sanguinity
> - 6bits headerType "Implies Y header size. NOTE: except for FEC 
> encodings"
> - 8bits unused
> - (32bits...)
> - 4bytes messageSize (X+Y+Z) (Z bytes = (messageSize - headerSize(Y) - 
> 8bytes msgSpec (X = 8))
> -
> - Ybytes message header 
> https://www.dropbox.com/s/ywu9pjxrfvg1hys/FrameTypes.pdf?dl=0
> -
> - Zbytes message payload
>
>
>
> Special FEC coded 64bit <msgSpec + header> + payload layout, for 64bit 
> alignment:
> - 8bytes (X) message specification...
> -
> - (32bits...)
> - 4bits tagging
> - 6bits multicastSymbol
> - 6bits messageVersion
> - 2bits sanguinity
> - 6bits FEC message type "NOTE: this means different layout"
> - 2bits rsMode
> - 6bits partial blockCount
> - (32bits...)
> - 4bits blockCount           "NOTE: for 1MB encoded/982KB data - 
> blockCount * blockCodeBytes = Z"
> - 20bits messageSize (X+Y+Z) (Z bytes = (messageSize - headerSize(Y) - 
> 8bytes msgSpec (X = 8))  "NOTE: this can specify 1MB data"
> - 8bits primitivePolynomial spec (good for our current rsModes)
> -
> - Y = 0
> -
> - Zbytes-sized payload
>
> Ok, that's what it is I think, this proposal.
>
> robert
>
>
>
> On 12/20/2015 10:33 AM, Robert Withers wrote:
> > ---Default non-FEC msgSpec + header + payload layout:
> >
> > - 6bits multicastSymbol
> > - 2bits sanguinity
> > - 6bits messageVersion
> > - 6bits headerType "NOTE: except for FEC encodings"
> > - 4bytes messageSize
> > - Xbytes header
> > -
> > - (messageSized - headerSize - 7specBytes) Bytes-sized payload
> >
> >
> > Special FEC coded 64bit <msgSpec + header> + payload layout, for 
> > 64bit alignment:
> > - (32bits...)
> > - 6bits multicastSymbol
> > - 2bits sanguinity
> > - 6bits messageVersion
> > - 6bits FEC message type "NOTE: this means different layout"
> > - 2bits rsMode
> > - (32bits...)
> > - 10bits blockCount           "NOTE: for 1MB encoded/982KB data"
> > - 20bits messageSize        "NOTE: this can specify 1MB data plus
> > - 8bits primitivePolynomial spec (good for our current rsModes)
> > - 4bits tagging
> > -
> > - (messageSized - headerSize - 4specBytes) OR (blockCount * rsMode's 
> > blockCodeBytes) Bytes-sized payload
--
. ..  ...   ^,^    robert
Go Panthers!