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Copyright (C) 1997-2000 Matt Newman <matt@novadigm.com>
TLS 1.4.1 Copyright (C) 2000 Ajuba Solutions
$Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/README.txt,v 1.5 2003/05/15 21:02:10 razzell Exp $
$Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/README.txt,v 1.6 2004/02/17 21:27:20 razzell 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.
Full filevent sematics should also be intact - see tests directory for
blocking and non-blocking examples.
The current release is TLS 1.5.0, with binaries built against OpenSSL 0.9.7c.
For best security and function, always compile from source use the latest
official release of OpenSSL.
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. These modifications are by Jeff Hobbs
<jeff@hobbs.org>.
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.
For correct functioning, use OpenSSL 0.9.6g or later. This release contains
important fixes to memory management, as well as incorporating the verify
callback correction which appeared in OpenSSL 0.9.6c. For best security, use
the latest official release of OpenSSL.
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