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Tcl Data transformations (Tcl-Trf) (Version 2.1.4 / MAY-06-2009) Andreas Kupries (andreas_kupries@users.sourceforge.net) This directory contains a freely distributable extension to Tcl/Tk called Tcl Data transformations (Tcl-Trf). The collection of provided transformation procedures includes: * Generation of message digests (hash values, checksums) MD2, MD5, SHA/SHS, SHA-1, HAVAL, RIPEMD-128, -160 CRC (polynomial used by PGP) ADLER (based upon zlib) * Conversion from and to various data encodings: dual, octal, hexadecimal representation uuencoding, base64-encoding, ASCII85-encoding * A reed-solomon error correcting coder. * (De)Compression based on zlib 1.0.4 or higher (1.1.3 is current) (if available as shared library) * Data encryption: Was removed from the base package, but is available separately (TrfCrypt). Example applications distributed with the package are: * 'tools/md', a message digest generator. Upwardly compatible to 'md5sum'. Tcl-Trf is developed for Tcl 7.6 or higher. It is a pure Tcl extension, Tk is not required. The extension requires a patched core. Patch files for 7.6, 8.0 and 8.0a2 are part of the distribution. The plus-patches maintained by Jan Nijtmans (nijtmans@nici.kun.nl) contain this patch too . Supporting (optional) packages are: * memchan 1.0 or higher (required by testsuite, by same author) See http://www.oche.de/~akupries/soft/memchan/ * zlib-1.0.4 or higher (1.1.3 is current!) See http://www.cdrom.com/pub/infozip/zlib/ * SSLeay or OpenSSL See http://www.ssleay.org/ or http://www.openssl.org/ Packages built upon the fundament provided by Trf are * TrfCrypt, contains various encryption systems, by myself. See http://www.oche.de/~akupries/soft/trfcrypt/ * TLS, an SSL/TLS implementation for all valid Tcl channels, by Matt Newman <matt@novadigm.com> See http://www.sensus.org/tcl/tls.htm http://www.sensus.org/tcl/tls11.tgz This distribution contains the source code for Tcl-Trf + documentation describing commands (-> latex) and c-level interfaces (-> man-pages). COMPILING/USING Tcl-Trf To compile Tcl-Trf please follow the instructions in the HTML documentation (file: doc/html/trf_compile.html). To report bugs, bug fixes, descriptions of interesting Tcl-Trf applications, and suggested improvements: +) Send email to andreas_kupries@users.sourceforge.net or +) Post an article to the newsgroup comp.lang.tcl PLATFORMS tested: Linux 2.0.29 (gcc 2.7.2.3) Development system IRIX 6.2 (cc only) ULTRIX 4.1 (both cc and gcc) ULTRIX 4.4 (cc 3.0) HP-UX-9 (both cc and gcc) HP-UX-10.2 Solaris 2.5 (gcc only) Other machines and OS's should work too. Feedback about other OS's and compilers is appreciated. Please help me in making this package better.