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* designed LZMA as an algorithm;
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* wrote an implementation known as LZMA SDK, which is part of
8
the bigger 7-Zip project.
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* wrote the first version of the gzip-like lzma command line
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* helped a lot with the documentation.
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* ported LZMA SDK to C and zlib-like API (liblzma);
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* rewrote the command line tool again to use liblzma and pthreads.
5
XZ Utils is developed and maintained by Lasse Collin
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<lasse.collin@tukaani.org>.
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Major parts of liblzma are based on code written by Igor Pavlov,
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specifically the LZMA SDK <http://7-zip.org/sdk.html>. Without
10
this code, XZ Utils wouldn't exist.
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The SHA-256 implementation in liblzma is based on the code found from
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7-Zip <http://7-zip.org/>, which has a modified version of the SHA-256
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code found from Crypto++ <http://www.cryptopp.com/>. The SHA-256 code
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in Crypto++ was written by Kevin Springle and Wei Dai.
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Some scripts have been adapted from gzip. The original versions
18
were written by Jean-loup Gailly, Charles Levert, and Paul Eggert.
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Andrew Dudman helped adapting the script and their man pages for
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The GNU Autotools based build system contains files from many authors,
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which I'm not trying list here.
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Several people have contributed fixes or reported bugs. Most of them
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are mentioned in the file THANKS.