I’m looking forward to deploying PowerArchiver 2023 to my users. Can you tell us when the MSI will be available for download and distribution?
Thanks.
Just tried using the Modern (Windows 10) Icon set and seeing a few missing icons in both PowerArchiver Burner and PowerArchiver Encryption screens . They are all there in the Minimalistik icon set and the only difference I can see is the former is blue and the latter grey. In version 22.00.9
powerarc_2023-09-18_17-00-19.png
powerarc_2023-09-18_17-01-05.png
Hi there,
there were some security issues fixed in 7zip:
https://www.zerodayinitiative.com/advisories/ZDI-23-1165/
https://www.zerodayinitiative.com/advisories/ZDI-23-1164/
As it seems, that PowerArchiver and PACL use the 7zip libraries, could you please update them to the latest version?
Hi,
From where I get PAVD2023.EXE? PowerArchiver 2023 tries to open it.
But it seems, it tries to download PAVD2021.EXE.
Thanks
I noticed that the version of ZPAQ used is older than the latest released 7.15 https://mattmahoney.net/dc/zpaq.html also there seems to be a newer fork that adds several features https://github.com/fcorbelli/zpaqfranz
It would be useful to implement this latest version (it also maintains the same syntax and behavior as the latest official release if used the -715 flag) and add when opening a zpaq file a choice of the version of the files to show (e.g. as dummy folders represented the various versions present). Since any previous changes are stored with this format, it is possible to extract a snapshot of a certain date/version.
If I open a password-protected zipper file (created with WinRAR but I think that’s irrelevant), open it with PowerArchiver and run “Remove Encryption” on the same file, then reopen it and add a password with “Encrypt Archive,” the resulting archive will be protected with the old ZipCrypto algorithm and not AES as indicated.
(this can be verified, for example, by trying to open the archive files with Windows Explorer, which does not support the AES algorithm)
PA 21.00.18 running on Windows 7 64 bit.
I made a big .PA file and thought I’d check it was made correctly with Menu / Actions / Test.
Discovered:
a) PA always issues a UAC prompt to do this!
b) PA always says there are many errors in PA files.
Solved Some AES Encrypted Files extract to a zero-length file
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While archiving some emails to upload to the Cloud as encrypted archives, I noticed that when testing the archive, I could not correctly extract the original file. The file would be created but be zero bytes long. The text files I was compressing were approx 100MB long and the archive a zip file with AES128 encryption.
The issue seems to be with AES encryption (128 192 and 256 bit), but the PK 2.04g encryption seems to allow proper file extraction.
I managed to re-produce the issue with an 800k text file that contains random characters; this when encrypted with AES128 would extract to a zero-length file. However a 40MB file containing only repeated “1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ” strings (which compresses to 233kB) encrypts and decrypts ok.
I have only tried this with zip archives.
I am using PA version 18.00.31.
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Thanks for reporting this issue. At certain settings, zip file header was not set properly, hence the issue.
You can find updated version here:
https://forums.powerarchiver.com/topic/5933/fast-ring-powerarchiver-2018-18-00-37Please check it out and let us know if it works properly now.
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@south37 said in Some AES Encrypted Files extract to a zero-length file:
While archiving some emails to upload to the Cloud as encrypted archives, I noticed that when testing the archive, I could not correctly extract the original file. The file would be created but be zero bytes long. The text files I was compressing were approx 100MB long and the archive a zip file with AES128 encryption.
The issue seems to be with AES encryption (128 192 and 256 bit), but the PK 2.04g encryption seems to allow proper file extraction.
I managed to re-produce the issue with an 800k text file that contains random characters; this when encrypted with AES128 would extract to a zero-length file. However a 40MB file containing only repeated “1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ” strings (which compresses to 233kB) encrypts and decrypts ok.
I have only tried this with zip archives.
I am using PA version 18.00.31.
can you please compress that file to .pa and send it over to us at support at conexware dot com. That way we can take a look at it right away.
thank you!
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@spwolf
File sent as unencrypted .pa and sample encrypted zip file -
Thanks for reporting this issue. At certain settings, zip file header was not set properly, hence the issue.
You can find updated version here:
https://forums.powerarchiver.com/topic/5933/fast-ring-powerarchiver-2018-18-00-37Please check it out and let us know if it works properly now.
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@spwolf Just tested the new version with the files that were problematic and they all decrypt and extract ok.
Thanks for the fast fix on this issue.
