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Bounty program for improvements to Tcl and certain Tcl packages.

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Copyright (C) 1997-2000 Matt Newman <[email protected]>


$Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/README.txt,v 1.1.1.1 2000/01/19 22:10:58 aborr Exp $

TLS (aka SSL) Channel - can be layered on any bi-directional
Tcl_Channel (Note: Requires Trf Core Patch)

Both client and server-side sockets are possible, and this code
should work on any platform as it uses a generic mechanism for
layering on SSL and Tcl.









Full filevent sematics should also be intact - see tests directory for
blocking and non-blocking examples.

This was built (almost) from scratch based upon observation of OpenSSL 0.9.2B

Addition credit is due for Andreas Kupries ([email protected]), for
providing the Tcl_ReplaceChannel mechanism and working closely with me
to enhance it to support full fileevent semantics.

Also work done by the follow people provided the impetus to do this "right":-
tclSSL (Colin McCormack, Shared Technology)
SSLtcl (Peter Antman)

This code is licensed until the same terms as the Tcl Core.

I would also like to acknowledge the input of Marshall Rose, who convinced 
me that people need to be able to switch-to-encrypted mode part way
through a conversation.

Also I would like to acknowledge the kind support of Novadigm Inc, my
current employer, which made this possible.


Matt Newman
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Copyright (C) 1997-2000 Matt Newman <[email protected]>
TLS 1.4 Copyright (C) 2000 Ajuba Solutions

$Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/README.txt,v 1.2 2000/08/15 18:49:07 hobbs Exp $

TLS (aka SSL) Channel - can be layered on any bi-directional Tcl_Channel.


Both client and server-side sockets are possible, and this code should work
on any platform as it uses a generic mechanism for layering on SSL and Tcl.

The TLS 1.4 release requires Tcl 8.2.0+, with 8.3.2+ preferred.  The
stacked channel implementation in Tcl was originally introduced in 8.2.0
(previously the Trf patch) and rewritten for 8.3.2+ due to inherent
limitations in the earlier implementation.  TLS 1.4 should compile with
any stubs-capable Tcl interpreter, but will require 8.2+ when loaded.
There are known limitations in the 8.2.0-8.3.1 stacked channel
implementation, so it is encouraged that people use TLS 1.4+ with an
8.3.2+ Tcl interpreter.

Full filevent sematics should also be intact - see tests directory for
blocking and non-blocking examples.

This was built (almost) from scratch based upon observation of OpenSSL 0.9.2B

Addition credit is due for Andreas Kupries ([email protected]), for
providing the Tcl_ReplaceChannel mechanism and working closely with me
to enhance it to support full fileevent semantics.

Also work done by the follow people provided the impetus to do this "right":-
tclSSL (Colin McCormack, Shared Technology)
SSLtcl (Peter Antman)

This code is licensed under the same terms as the Tcl Core.

I would also like to acknowledge the input of Marshall Rose, who convinced 
me that people need to be able to switch-to-encrypted mode part way
through a conversation.

Also I would like to acknowledge the kind support of Novadigm Inc, my
current employer, which made this possible.


Matt Newman