libarchive
7z
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libarchive | 7z | |
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33 | 5 | |
2,870 | 487 | |
4.1% | - | |
8.8 | 2.4 | |
6 days ago | 4 months ago | |
C | C++ | |
GNU General Public License v3.0 or later | GNU Lesser General Public License v3.0 only |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
libarchive
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The XZ attack and timeline
29. October 2021 At this point Jia Tan pops up, and the first thing we see from him is an innocuous patch to the xz repository, and while a lot of people believe he started out trying his luck with another library also known as libarchive, this is not the case, I would bet it’s more of a backup looking at the dates, being that there are a few days in between as shown in this commit.
- Zip entry size unset now honors user requested compression level
- Suspicious libarchive pull request
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Backdoor in upstream xz/liblzma leading to SSH server compromise
Potentially malicious commit by same author on libarchive: https://github.com/libarchive/libarchive/pull/1609
- WinRAR musste shady werden.
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Making Amiga IFF Thumbnails Work in Linux
Full agreement, and with the addition of xpk¹/xfd² as natural extensions to that extensibility too. I see things like xfd supporting xz¹, and I'm simultaneously amazed that it exists and happy that I don't need to do xz {,de}compression on 68k ;)
I guess we have something similar-ish with libarchive⁴, but nobody(including me) has pushed the extra mile to get file dialogs to support random compression and decompression formats.
Beyond OT: I didn't realise how much stuff was still going on at aminet, but I love love LOVE that people are still dropping new car sets for Geoff Crammond's F1GP.
¹ http://aminet.net/package/util/pack/xpk_User
² http://aminet.net/package/util/pack/xfdmaster
³ http://aminet.net/package/util/pack/xfd_lzma.lha
⁴ https://www.libarchive.org/
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WinRAR zero-day exploited since April to hack trading accounts
I don't have a preview channel install handy to check, but apparently they're using libarchive so here's the full list assuming they expose everything it supports:
https://github.com/libarchive/libarchive/wiki/LibarchiveForm...
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Announcing Windows 11 Insider Preview Build 23493 for the Dev Channel
As announced at the Build conference back in May, this build adds native support for reading additional archive file formats using the libarchive open-source project such as
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Poor winrar
LibarchiveFormats · libarchive/libarchive Wiki · GitHub
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Windows 11 getting native support for 7-Zip, RAR, and GZ archives
Seems what they're using is BSD-liscensed: https://github.com/libarchive/libarchive/wiki
7z
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7-zip 22.00 – APFS, Posix TAR, high precision timestamps
Looking back at this version history [1], there was perviously a gap of 3.5 years between releases (2011-2014). Skimming through the discussion forums, the 2.5yr gap between 19.00 and 21.07 was filled with a number of alpha and beta releases, eg 20.02 [2]. Version numbering seems to follow a consistent yy.## format since 2015.
[1] https://sourceforge.net/projects/sevenzip/files/7-Zip/
[2] https://sourceforge.net/p/sevenzip/discussion/45797/thread/9...
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And it's not like they're 60, they're twenty! I thought it was more known
Also, unlike WinRAR, 7zip is open-source. Code mirror here: https://github.com/kornelski/7z
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7zip > winRAR change my mind
It's also open source.
- 7-zip official Linux version
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How safe is 7Zip encryption?
AES is only as good as the KDF protecting the key. Looking at the github mirror of its code (updated march 2019), it seems to be using PBKDF2-SHA1 with 1,000 iterations. That's actually really bad because SHA1 is weak, and 1,000 iterations is very low.
What are some alternatives?
ZLib - A massively spiffy yet delicately unobtrusive compression library.
NanaZip - The 7-Zip derivative intended for the modern Windows experience
p7zip - A new p7zip fork with additional codecs and improvements (forked from https://sourceforge.net/projects/sevenzip/ AND https://sourceforge.net/projects/p7zip/).
PeaZip - Free Zip / Unzip software and Rar file extractor. Cross-platform file and archive manager. Features volume spanning, compression, authenticated encryption. Supports 7Z, 7-Zip sfx, ACE, ARJ, Brotli, BZ2, CAB, CHM, CPIO, DEB, GZ, ISO, JAR, LHA/LZH, NSIS, OOo, PAQ/LPAQ, PEA, QUAD, RAR, RPM, split, TAR, Z, ZIP, ZIPX, Zstandard.
fpart - Sort files and pack them into partitions
7-Zip-zstd - 7-Zip with support for Brotli, Fast-LZMA2, Lizard, LZ4, LZ5 and Zstandard
Klib - A standalone and lightweight C library
ck - Concurrency primitives, safe memory reclamation mechanisms and non-blocking (including lock-free) data structures designed to aid in the research, design and implementation of high performance concurrent systems developed in C99+.
7zip.html - Browse 7z archives online in the web-browsers
pixz - Parallel, indexed xz compressor
AndroidP7zip - An Android compress and extract library support popular compression format such as rar, zip, tar, lzma. based on p7zip.