http://fileformats.archiveteam.org/index.php?action=history&feed=atom&title=LZ4 2026-04-10T14:13:30Z Revision history for this page on the wiki MediaWiki 1.19.2 http://fileformats.archiveteam.org/index.php?title=LZ4&diff=50853&oldid=prev 2025-08-16T11:32:35Z

<p>‎<span dir="auto"><span class="autocomment">Resources: </span> updated link for &#039;Debunking the LZ4 &quot;20 years old bug&quot; myth&#039; to Internet Archive copy, as the blog entry no longer exists.</span></p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr valign='top'> <td colspan='2' style="background-color: white; color:black;">← Older revision</td> <td colspan='2' style="background-color: white; color:black;">Revision as of 11:32, 16 August 2025</td> </tr><tr><td colspan="2" class="diff-lineno">Line 27:</td> <td colspan="2" class="diff-lineno">Line 27:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [https://fastcompression.blogspot.com/2011/05/lz4-explained.html LZ4 explained]</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [https://fastcompression.blogspot.com/2011/05/lz4-explained.html LZ4 explained]</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [https://ticki.github.io/blog/how-lz4-works/ How LZ4 works]</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [https://ticki.github.io/blog/how-lz4-works/ How LZ4 works]</div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>* [http://blog.securitymouse.com/2014/06/raising-lazarus-20-year-old-bug-that.html Raising Lazarus - The 20 Year Old Bug that Went to Mars] vs. [http://fastcompression.blogspot.com/2014/06/debunking-lz4-20-years-old-bug-myth.html Debunking the LZ4 &quot;20 years old bug&quot; myth]</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>* [http://blog.securitymouse.com/2014/06/raising-lazarus-20-year-old-bug-that.html Raising Lazarus - The 20 Year Old Bug that Went to Mars] vs. [<ins class="diffchange diffchange-inline">https://web.archive.org/web/20140627022047/</ins>http://fastcompression.blogspot.com/2014/06/debunking-lz4-20-years-old-bug-myth.html Debunking the LZ4 &quot;20 years old bug&quot; myth <ins class="diffchange diffchange-inline">- Internet Archive copy</ins>]</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>== References ==</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>== References ==</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>&lt;references/&gt;</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>&lt;references/&gt;</div></td></tr> </table>

Anonymoususer852 http://fileformats.archiveteam.org/index.php?title=LZ4&diff=50850&oldid=prev 2025-08-16T11:27:34Z

<p>Added link for magic bytes, only for FormatInfo. Added more &quot;signature bytes&quot; depending on version. Clarified which magic bytes belongs to which versions of LZ4.</p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr valign='top'> <td colspan='2' style="background-color: white; color:black;">← Older revision</td> <td colspan='2' style="background-color: white; color:black;">Revision as of 11:27, 16 August 2025</td> </tr><tr><td colspan="2" class="diff-lineno">Line 5:</td> <td colspan="2" class="diff-lineno">Line 5:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>|wikidata={{wikidata|Q15624241}} (Compression algorithm)&lt;br /&gt;{{wikidata|Q28770292}} (file format)</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>|wikidata={{wikidata|Q15624241}} (Compression algorithm)&lt;br /&gt;{{wikidata|Q28770292}} (file format)</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>|compression=lossless, mandatory</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>|compression=lossless, mandatory</div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>|magic=02 21 4c 18 (<del class="diffchange diffchange-inline">legacy</del>)&lt;br /&gt;04 22 4d 18</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>|magic=<ins class="diffchange diffchange-inline">[https://github.com/file/file/blob/master/magic/Magdir/compress#L304 </ins>02 21 4c 18<ins class="diffchange diffchange-inline">] </ins>(<ins class="diffchange diffchange-inline">v0.1-v0.9</ins>)&lt;br /&gt;<ins class="diffchange diffchange-inline">[https://github.com/file/file/blob/master/magic/Magdir/compress#L302 03 21 4c 18] (v1.0-v1.3)&lt;br /&gt;[https://github.com/file/file/blob/master/magic/Magdir/compress#L298 </ins>04 22 4d 18<ins class="diffchange diffchange-inline">] (v1.4+)</ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>|released=2011</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>|released=2011</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>}}</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>}}</div></td></tr> <tr><td colspan="2" class="diff-lineno">Line 18:</td> <td colspan="2" class="diff-lineno">Line 18:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>== Identification ==</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>== Identification ==</div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">When used as a file format, </del>LZ4 files begin with signature bytes {{magic|04 22 4d 18}}.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">* </ins>LZ4 <ins class="diffchange diffchange-inline">(v1.4+) compressed </ins>files begin with signature bytes {{magic|04 22 4d 18}}.</div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>&#160;</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">* LZ4 (v1.0-v1.3) compressed files begin with signature bytes {{magic|03 21 4c 18}}.</ins></div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">There is also a legacy format, whose </del>signature <del class="diffchange diffchange-inline">is </del>{{magic|02 21 4c 18}}.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">* LZ4 (v0.1-v0.9) compressed files begin with </ins>signature <ins class="diffchange diffchange-inline">bytes </ins>{{magic|02 21 4c 18}}.</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>== Resources ==</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>== Resources ==</div></td></tr> </table>

Anonymoususer852 http://fileformats.archiveteam.org/index.php?title=LZ4&diff=50846&oldid=prev 2025-08-16T10:48:19Z

<p>Added <a href="/wiki/DWARFS" title="DWARFS">DWARFS</a> as a user of LZ4.</p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr valign='top'> <td colspan='2' style="background-color: white; color:black;">← Older revision</td> <td colspan='2' style="background-color: white; color:black;">Revision as of 10:48, 16 August 2025</td> </tr><tr><td colspan="2" class="diff-lineno">Line 15:</td> <td colspan="2" class="diff-lineno">Line 15:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [[SquashFS|&lt;code&gt;squashfs-tools&lt;/code&gt;]]&lt;ref&gt;[https://github.com/plougher/squashfs-tools/blob/master/squashfs-tools/compressor.c#L31-L77 compressor.c (lines 31-77) - squashfs-tools - GitHub]&lt;/ref&gt;</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [[SquashFS|&lt;code&gt;squashfs-tools&lt;/code&gt;]]&lt;ref&gt;[https://github.com/plougher/squashfs-tools/blob/master/squashfs-tools/compressor.c#L31-L77 compressor.c (lines 31-77) - squashfs-tools - GitHub]&lt;/ref&gt;</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* zram&lt;ref&gt;[https://docs.kernel.org/admin-guide/blockdev/zram.html#select-compression-algorithm 2) Select compression algorithm - zram: Compressed RAM-based block devices -- The Linux Kernel documentation]&lt;/ref&gt; - Compressed RAM-based block devices.</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* zram&lt;ref&gt;[https://docs.kernel.org/admin-guide/blockdev/zram.html#select-compression-algorithm 2) Select compression algorithm - zram: Compressed RAM-based block devices -- The Linux Kernel documentation]&lt;/ref&gt; - Compressed RAM-based block devices.</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* [[DWARFS]]&lt;ref&gt;[https://github.com/mhx/dwarfs/blob/main/src/compression/lz4.cpp lz4.cpp - DWARFS - GitHub]&lt;/ref&gt;</ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>== Identification ==</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>== Identification ==</div></td></tr> </table>

Anonymoususer852 http://fileformats.archiveteam.org/index.php?title=LZ4&diff=50840&oldid=prev 2025-08-16T08:36:54Z

<p>Updated FormatInfo, updated links, added examples where lz4 is used under Linux and citations, added Wikipedia page.</p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr valign='top'> <td colspan='2' style="background-color: white; color:black;">← Older revision</td> <td colspan='2' style="background-color: white; color:black;">Revision as of 08:36, 16 August 2025</td> </tr><tr><td colspan="2" class="diff-lineno">Line 3:</td> <td colspan="2" class="diff-lineno">Line 3:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>|subcat=Compression</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>|subcat=Compression</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>|extensions={{ext|lz4}}</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>|extensions={{ext|lz4}}</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">|wikidata={{wikidata|Q15624241}} (Compression algorithm)&lt;br /&gt;{{wikidata|Q28770292}} (file format)</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">|compression=lossless, mandatory</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">|magic=02 21 4c 18 (legacy)&lt;br /&gt;04 22 4d 18</ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>|released=2011</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>|released=2011</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>}}</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>}}</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>'''LZ4''' is a lossless data compression algorithm and compressed data format. It is designed to support very fast compression.</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>'''LZ4''' is a lossless data compression algorithm and compressed data format. It is designed to support very fast compression.</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">In [[Linux]], LZ4 appears as one of the many compression format for:</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* [[vmlinuz]]&lt;ref&gt;[https://github.com/torvalds/linux/blob/master/scripts/extract-vmlinux#L56 extract-vmlinux shell script (line 56) - Linus Torvalds' kernel - GitHub]&lt;/ref&gt;</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* [[initramfs]]&lt;ref&gt;[https://github.com/dracut-ng/dracut-ng/blob/main/man/dracut.conf.5.adoc?plain=1#L119-L123 dracut.conf.5.adoc - dracut-ng manual pages - GitHub]&lt;/ref&gt;&lt;ref&gt;[https://gitlab.archlinux.org/archlinux/mkinitcpio/mkinitcpio/-/blob/master/mkinitcpio.conf?ref_type=heads#L61-67 mkinitcpio.conf (lines 61-67) - mkinitcpio - Arch Linux GitLab]&lt;/ref&gt;&lt;ref&gt;[https://github.com/anatol/booster/blob/master/docs/manpage.md?plain=1#L57 manpage.md (line 57) - booster - GitHub]&lt;/ref&gt;</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* [[SquashFS|&lt;code&gt;squashfs-tools&lt;/code&gt;]]&lt;ref&gt;[https://github.com/plougher/squashfs-tools/blob/master/squashfs-tools/compressor.c#L31-L77 compressor.c (lines 31-77) - squashfs-tools - GitHub]&lt;/ref&gt;</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* zram&lt;ref&gt;[https://docs.kernel.org/admin-guide/blockdev/zram.html#select-compression-algorithm 2) Select compression algorithm - zram: Compressed RAM-based block devices -- The Linux Kernel documentation]&lt;/ref&gt; - Compressed RAM-based block devices.</ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>== Identification ==</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>== Identification ==</div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>When used as a file format, LZ4 files begin with signature bytes <del class="diffchange diffchange-inline">&lt;code&gt;</del>04 22 4d 18<del class="diffchange diffchange-inline">&lt;/code&gt;</del>.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; 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color:black; font-size: smaller;"></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>== Resources ==</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>== Resources ==</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* [[wikipedia:LZ4 (compression algorithm)| LZ4 compression algorithm on Wikipedia]]</ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [https://github.com/Cyan4973/lz4 LZ4 website]</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [https://github.com/Cyan4973/lz4 LZ4 website]</div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>* [<del class="diffchange diffchange-inline">http</del>://fastcompression.blogspot.com/2011/05/lz4-explained.html LZ4 explained]</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>* [<ins class="diffchange diffchange-inline">https</ins>://fastcompression.blogspot.com/2011/05/lz4-explained.html LZ4 explained]</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [https://ticki.github.io/blog/how-lz4-works/ How LZ4 works]</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [https://ticki.github.io/blog/how-lz4-works/ How LZ4 works]</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [http://blog.securitymouse.com/2014/06/raising-lazarus-20-year-old-bug-that.html Raising Lazarus - The 20 Year Old Bug that Went to Mars] vs. [http://fastcompression.blogspot.com/2014/06/debunking-lz4-20-years-old-bug-myth.html Debunking the LZ4 &quot;20 years old bug&quot; myth]</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [http://blog.securitymouse.com/2014/06/raising-lazarus-20-year-old-bug-that.html Raising Lazarus - The 20 Year Old Bug that Went to Mars] vs. [http://fastcompression.blogspot.com/2014/06/debunking-lz4-20-years-old-bug-myth.html Debunking the LZ4 &quot;20 years old bug&quot; myth]</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">== References ==</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">&lt;references/&gt;</ins></div></td></tr> </table>

Anonymoususer852 http://fileformats.archiveteam.org/index.php?title=LZ4&diff=28504&oldid=prev 2017-06-30T18:17:32Z

<p>‎<span dir="auto"><span class="autocomment">Resources</span></span></p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr valign='top'> <td colspan='2' style="background-color: white; color:black;">← Older revision</td> <td colspan='2' style="background-color: white; color:black;">Revision as of 18:17, 30 June 2017</td> </tr><tr><td colspan="2" class="diff-lineno">Line 15:</td> <td colspan="2" class="diff-lineno">Line 15:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [https://github.com/Cyan4973/lz4 LZ4 website]</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [https://github.com/Cyan4973/lz4 LZ4 website]</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [http://fastcompression.blogspot.com/2011/05/lz4-explained.html LZ4 explained]</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [http://fastcompression.blogspot.com/2011/05/lz4-explained.html LZ4 explained]</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* [https://ticki.github.io/blog/how-lz4-works/ How LZ4 works]</ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [http://blog.securitymouse.com/2014/06/raising-lazarus-20-year-old-bug-that.html Raising Lazarus - The 20 Year Old Bug that Went to Mars] vs. [http://fastcompression.blogspot.com/2014/06/debunking-lz4-20-years-old-bug-myth.html Debunking the LZ4 &quot;20 years old bug&quot; myth]</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [http://blog.securitymouse.com/2014/06/raising-lazarus-20-year-old-bug-that.html Raising Lazarus - The 20 Year Old Bug that Went to Mars] vs. [http://fastcompression.blogspot.com/2014/06/debunking-lz4-20-years-old-bug-myth.html Debunking the LZ4 &quot;20 years old bug&quot; myth]</div></td></tr> </table>

Jsummers http://fileformats.archiveteam.org/index.php?title=LZ4&diff=21472&oldid=prev 2015-04-08T23:22:36Z

<p>Updated link</p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr valign='top'> <td colspan='2' style="background-color: white; color:black;">← Older revision</td> <td colspan='2' style="background-color: white; color:black;">Revision as of 23:22, 8 April 2015</td> </tr><tr><td colspan="2" class="diff-lineno">Line 13:</td> <td colspan="2" class="diff-lineno">Line 13:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>== Resources ==</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>== Resources ==</div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>* https://<del class="diffchange diffchange-inline">code.google</del>.com/<del class="diffchange diffchange-inline">p</del>/lz4<del class="diffchange diffchange-inline">/</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>* <ins class="diffchange diffchange-inline">[</ins>https://<ins class="diffchange diffchange-inline">github</ins>.com/<ins class="diffchange diffchange-inline">Cyan4973</ins>/lz4 <ins class="diffchange diffchange-inline">LZ4 website]</ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [http://fastcompression.blogspot.com/2011/05/lz4-explained.html LZ4 explained]</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [http://fastcompression.blogspot.com/2011/05/lz4-explained.html LZ4 explained]</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [http://blog.securitymouse.com/2014/06/raising-lazarus-20-year-old-bug-that.html Raising Lazarus - The 20 Year Old Bug that Went to Mars] vs. [http://fastcompression.blogspot.com/2014/06/debunking-lz4-20-years-old-bug-myth.html Debunking the LZ4 &quot;20 years old bug&quot; myth]</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [http://blog.securitymouse.com/2014/06/raising-lazarus-20-year-old-bug-that.html Raising Lazarus - The 20 Year Old Bug that Went to Mars] vs. [http://fastcompression.blogspot.com/2014/06/debunking-lz4-20-years-old-bug-myth.html Debunking the LZ4 &quot;20 years old bug&quot; myth]</div></td></tr> </table>

Jsummers http://fileformats.archiveteam.org/index.php?title=LZ4&diff=18016&oldid=prev 2014-06-28T01:41:39Z

<p>‎<span dir="auto"><span class="autocomment">Resources</span></span></p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr valign='top'> <td colspan='2' style="background-color: white; color:black;">← Older revision</td> <td colspan='2' style="background-color: white; color:black;">Revision as of 01:41, 28 June 2014</td> </tr><tr><td colspan="2" class="diff-lineno">Line 15:</td> <td colspan="2" class="diff-lineno">Line 15:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* https://code.google.com/p/lz4/</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* https://code.google.com/p/lz4/</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [http://fastcompression.blogspot.com/2011/05/lz4-explained.html LZ4 explained]</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [http://fastcompression.blogspot.com/2011/05/lz4-explained.html LZ4 explained]</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* [http://blog.securitymouse.com/2014/06/raising-lazarus-20-year-old-bug-that.html Raising Lazarus - The 20 Year Old Bug that Went to Mars] vs. [http://fastcompression.blogspot.com/2014/06/debunking-lz4-20-years-old-bug-myth.html Debunking the LZ4 &quot;20 years old bug&quot; myth]</ins></div></td></tr> </table>

Jsummers http://fileformats.archiveteam.org/index.php?title=LZ4&diff=11217&oldid=prev 2013-04-22T18:00:42Z

<p></p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr valign='top'> <td colspan='2' style="background-color: white; color:black;">← Older revision</td> <td colspan='2' style="background-color: white; color:black;">Revision as of 18:00, 22 April 2013</td> </tr><tr><td colspan="2" class="diff-lineno">Line 2:</td> <td colspan="2" class="diff-lineno">Line 2:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>|formattype=electronic</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>|formattype=electronic</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>|subcat=Compression</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>|subcat=Compression</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">|extensions={{ext|lz4}}</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">|released=2011</ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>}}</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>}}</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>'''LZ4''' is a lossless data compression algorithm and compressed data format. It is designed to support very fast compression.</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>'''LZ4''' is a lossless data compression algorithm and compressed data format. It is designed to support very fast compression.</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">== Identification ==</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">When used as a file format, LZ4 files begin with signature bytes &lt;code&gt;04 22 4d 18&lt;/code&gt;.</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">There is also a legacy format, whose signature is &lt;code&gt;02 21 4c 18&lt;/code&gt;.</ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>== Resources ==</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>== Resources ==</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* https://code.google.com/p/lz4/</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* https://code.google.com/p/lz4/</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [http://fastcompression.blogspot.com/2011/05/lz4-explained.html LZ4 explained]</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [http://fastcompression.blogspot.com/2011/05/lz4-explained.html LZ4 explained]</div></td></tr> </table>

Jsummers http://fileformats.archiveteam.org/index.php?title=LZ4&diff=11213&oldid=prev 2013-04-22T16:30:01Z

<p>Created page with &quot;{{FormatInfo |formattype=electronic |subcat=Compression }} &#039;&#039;&#039;LZ4&#039;&#039;&#039; is a lossless data compression algorithm and compressed data format. It is designed to support very fast c...&quot;</p> <p><b>New page</b></p><div>{{FormatInfo<br /> |formattype=electronic<br /> |subcat=Compression<br /> }}<br /> '''LZ4''' is a lossless data compression algorithm and compressed data format. It is designed to support very fast compression.<br /> <br /> == Resources ==<br /> * https://code.google.com/p/lz4/<br /> * [http://fastcompression.blogspot.com/2011/05/lz4-explained.html LZ4 explained]</div>

Jsummers