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7-Zip is a free and open-source file archiver, a utility used to place groups of files within compressed containers known as "archives". It is developed by Igor Pavlov and was first released in 1999. [2] 7-Zip has its own archive format called 7z introduced in 2001, [12] but can read and write several others.
XZ Utils can compress and decompress the xz and lzma file formats. Since the LZMA format has been considered legacy, [2] XZ Utils by default compresses to xz. In most cases, xz achieves higher compression rates than alternatives like zip, [3] gzip and bzip2. Decompression speed is higher than bzip2, but lower than gzip.
The malicious code is known to be in 5.6.0 and 5.6.1 releases of the XZ Utils software package. The exploit remains dormant unless a specific third-party patch of the SSH server is used. Under the right circumstances this interference could potentially enable a malicious actor to break sshd authentication and gain unauthorized access to the ...
7z XZ RAR LHA/LZH ACE SIT SITX ARJ KGB DAR ARC CAB ALZ ISO/CD Image ZPAQ Special 7-Zip: Yes Yes Yes [b] Yes [b] Yes Yes [b] No No No No No No No No No No No No No ALZip [c] Yes Yes Yes Yes No Unknown No No No No No No No No No Yes Yes Unknown No Archive Manager: Yes Yes Yes Yes Yes Yes No [d] Yes Unknown Unknown Unknown Yes Unknown ...
7z.7z Igor Pavlov 2000 LZMA, LZMA2, Bzip2, PPMd, Deflate: Yes Yes, CRC32 No Yes, AES-256 Yes 100 ns [21] Yes LGPL, Public domain: ACE.ace Marcel Lemke 1998 [22] LZ77: Yes Yes Yes Yes, Blowfish Yes 2s ? Proprietary software: AFA .afa Vicente Sánchez-Alarcos 2009 Original Yes Yes Yes Yes, AES and CAST Yes ? ? ? ARC.arc Thom Henderson (SEA) 1985 ...
Zstd is the corresponding reference implementation in C, released as open-source software on 31 August 2016. [ 3 ] [ 4 ] The algorithm was published in 2018 as RFC 8478 , which also defines an associated media type "application/zstd", filename extension "zst", and HTTP content encoding "zstd".
Ark is a file archiver and compressor developed by KDE and included in the KDE Applications software bundle. It supports various common archive and compression formats including zip , 7z , rar , lha and tar (both uncompressed and compressed with e.g. gzip , bzip2 , lzip or xz ).
7z is a compressed archive file format that supports several different data compression, encryption and pre-processing algorithms. The 7z format initially appeared as implemented by the 7-Zip archiver. The 7-Zip program is publicly available under the terms of the GNU Lesser General Public License.