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    Can you include .3MF to the list of re-compressible formats?
    A

    Can you include .3MF to the list of re-compressible formats? Its structure is similar to MS Office 2007 documents and Open Document Format. It is a ZIP Deflate archive with XML data and some JPG, and/or PNG pictures inside. Otherwise, if I try to compress .3MF it bearly makes it smaller unless I recompress .3MF to the Store setting then it makes it a lot smaller.
    Wish they all would move to 7zip ZSTD in the first place so that the optimized file size with FileOptimizer would be 50% of the ZIP Deflate version. And there would be no extra compression needed :)

    Wishlist Jan 20, 2024, 8:38 PM
    Optimize archive on Context Menu
    W

    I noticed that the option to add the optimize archive function to the context menu is missing on Windows 10.
    Opening each archive with the interface in order to click it becomes tedious with many files.

    Same for others functions like Remove Archive Encryption

    Wishlist Feb 20, 2023, 10:07 AM

    Solved Serpent-256 Encryption for PAE/PAE2

    Wishlist
    serpent pea pae encryption cipher
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    • 2
      2Flo
      last edited by spwolf Aug 19, 2019, 12:00 PM Aug 16, 2019, 10:06 PM

      Hello.

      I believe it would be useful to implement Serpent-256 encryption for PAE/PAE2 formats, even though PowerArchiver offers strong encryption ciphers already.

      (deleted part advertising other software - admin)

      Do you think this will be a useful addition?

      Thank you for the consideration!

      1 Reply Last reply Reply Quote 0
      • S
        spwolf conexware
        last edited by Aug 19, 2019, 12:04 PM

        btw, by far the most secure is to use PA format with secure option:

        Secure AES 256-bits - creates PA archives with AES 256-bit encryption. For added security, we use the BWTS algorithm to scramble the data before AES, so attackers can not use LZ compression redundancy and other plaintext attacks to quickly check if given password is valid. This makes .pa format considerably more secure than ZIP AES. For the AES encryption module, we use FIPS 140-2 validated modules from Windows so you can rest assured that AES implementation has been tested and validated (FIPS 140-2 encryption module is always used)"

        1 Reply Last reply Reply Quote 1
        • B
          Brian Gregory Alpha Testers
          last edited by Aug 17, 2019, 11:21 PM

          Are you hoping for the ability to open encrypted archives from PEA?

          1 Reply Last reply Reply Quote 0
          • B
            Brian Gregory Alpha Testers
            last edited by Aug 18, 2019, 11:57 AM

            Or is this just SPAM advertising PEA?

            1 Reply Last reply Reply Quote 1
            • L
              Luxor Alpha Testers
              last edited by Aug 18, 2019, 1:56 PM

              My thoughts is the latter. Will wait for @spwolf to judge.

              Windows 10 Home 64-bit
              Intel Core i7 6700HQ @ 2.60GHz
              12.0GB Dual-Channel DDR3 @ 798MHz

              1 Reply Last reply Reply Quote 1
              • S
                spwolf conexware
                last edited by Aug 19, 2019, 12:04 PM

                btw, by far the most secure is to use PA format with secure option:

                Secure AES 256-bits - creates PA archives with AES 256-bit encryption. For added security, we use the BWTS algorithm to scramble the data before AES, so attackers can not use LZ compression redundancy and other plaintext attacks to quickly check if given password is valid. This makes .pa format considerably more secure than ZIP AES. For the AES encryption module, we use FIPS 140-2 validated modules from Windows so you can rest assured that AES implementation has been tested and validated (FIPS 140-2 encryption module is always used)"

                1 Reply Last reply Reply Quote 1
                • 2
                  2Flo
                  last edited by Aug 19, 2019, 10:08 PM

                  Hi.

                  I did not mean the link to be for advertising. The link was based on an open source software documentation/comparison that would support my request.

                  Of course, everything was just for suggestion purposes, to see if you think it’s worth implementing this feature.

                  My wish was centered on the encryption cipher itself. :)

                  Thank you!

                  B 1 Reply Last reply Aug 20, 2019, 1:20 AM Reply Quote 0
                  • B
                    Brian Gregory Alpha Testers @2Flo
                    last edited by Aug 20, 2019, 1:20 AM

                    @2Flo So, I ask again, are you hoping for the ability to open encrypted archives from PEA?

                    1 Reply Last reply Reply Quote 0
                    • 2
                      2Flo
                      last edited by Aug 21, 2019, 5:17 PM

                      Hi.

                      Essentially my wish would be to have the Serpent-256 encryption cipher as an option to encrypt any data.

                      The archive format doesn’t matter for me, I wish I had the option to create and open Serpent-256 encrypted [any supported archive / file type] from PowerArchiver.

                      Thank you! :)

                      B 1 Reply Last reply Aug 21, 2019, 10:49 PM Reply Quote 0
                      • B
                        Brian Gregory Alpha Testers @2Flo
                        last edited by Brian Gregory Aug 21, 2019, 10:55 PM Aug 21, 2019, 10:49 PM

                        @2Flo Because you believe it’s more secure than AES256 ?
                        I guess by some particular means of assessing the security of a cypher it may seem more secure.
                        But it’s also less efficient to implement than AES256.
                        PowerArchiver has chosen, IMHO quite reasonably, to go with the industry standard widely accepted and respected, more efficient, AES algorithm.:face_with_stuck-out_tongue:

                        1 Reply Last reply Reply Quote 0
                        • 2
                          2Flo
                          last edited by Aug 22, 2019, 10:45 AM

                          Hi.

                          Indeed, while Serpent uses a more conservative approach than AES with regards to security margin, it is slower in implementation and not that much public cryptoanalysis has been done on it compared to AES.

                          I was thinking about it for completion sake.
                          The reference code is public domain software and the optimized code is under GPL license.

                          Since PowerArchiver already supports AES, 3DES, RC2, RC4, Blowfish, and Twofish
                          and Serpent was also an AES finalist, I wondered if it could join the list of supported encryption ciphers.

                          Of course that Rijndael (AES) is still very secure, not broken, fast in implementation and universally supported.

                          It will remain to the developers’ decision wether Serpent is worth implementing. Nevertheless, PowerArchiver supports strong encryption ciphers and the addition of another is purely optional.

                          Thank you!

                          S 1 Reply Last reply Aug 23, 2019, 8:42 AM Reply Quote 0
                          • S
                            spwolf conexware @2Flo
                            last edited by Aug 23, 2019, 8:42 AM

                            @2Flo said in Serpent-256 Encryption for PAE/PAE2:

                            Hi.

                            Indeed, while Serpent uses a more conservative approach than AES with regards to security margin, it is slower in implementation and not that much public cryptoanalysis has been done on it compared to AES.

                            I was thinking about it for completion sake.
                            The reference code is public domain software and the optimized code is under GPL license.

                            Since PowerArchiver already supports AES, 3DES, RC2, RC4, Blowfish, and Twofish
                            and Serpent was also an AES finalist, I wondered if it could join the list of supported encryption ciphers.

                            Of course that Rijndael (AES) is still very secure, not broken, fast in implementation and universally supported.

                            It will remain to the developers’ decision wether Serpent is worth implementing. Nevertheless, PowerArchiver supports strong encryption ciphers and the addition of another is purely optional.

                            Thank you!

                            PAE format is there for legacy purposes these days… real meat is in Secure 256 AES implementation we do in PA format, with some extra work that makes brute force attacks harder to use.

                            2 1 Reply Last reply Aug 23, 2019, 2:23 PM Reply Quote 0
                            • 2
                              2Flo @spwolf
                              last edited by 2Flo Aug 23, 2019, 2:26 PM Aug 23, 2019, 2:23 PM

                              @spwolf said in Serpent-256 Encryption for PAE/PAE2:

                              @2Flo said in Serpent-256 Encryption for PAE/PAE2:

                              Hi.

                              Indeed, while Serpent uses a more conservative approach than AES with regards to security margin, it is slower in implementation and not that much public cryptoanalysis has been done on it compared to AES.

                              I was thinking about it for completion sake.
                              The reference code is public domain software and the optimized code is under GPL license.

                              Since PowerArchiver already supports AES, 3DES, RC2, RC4, Blowfish, and Twofish
                              and Serpent was also an AES finalist, I wondered if it could join the list of supported encryption ciphers.

                              Of course that Rijndael (AES) is still very secure, not broken, fast in implementation and universally supported.

                              It will remain to the developers’ decision wether Serpent is worth implementing. Nevertheless, PowerArchiver supports strong encryption ciphers and the addition of another is purely optional.

                              Thank you!

                              PAE format is there for legacy purposes these days… real meat is in Secure 256 AES implementation we do in PA format, with some extra work that makes brute force attacks harder to use.

                              Does this apply to the previously mentioned BWTS algorithm? Or does this apply to increased number of rounds / cipher operation mode / key derivation algorithm / something else?

                              S 1 Reply Last reply Aug 23, 2019, 3:29 PM Reply Quote 0
                              • S
                                spwolf conexware @2Flo
                                last edited by Aug 23, 2019, 3:29 PM

                                @2Flo said in Serpent-256 Encryption for PAE/PAE2:

                                @spwolf said in Serpent-256 Encryption for PAE/PAE2:

                                @2Flo said in Serpent-256 Encryption for PAE/PAE2:

                                Hi.

                                Indeed, while Serpent uses a more conservative approach than AES with regards to security margin, it is slower in implementation and not that much public cryptoanalysis has been done on it compared to AES.

                                I was thinking about it for completion sake.
                                The reference code is public domain software and the optimized code is under GPL license.

                                Since PowerArchiver already supports AES, 3DES, RC2, RC4, Blowfish, and Twofish
                                and Serpent was also an AES finalist, I wondered if it could join the list of supported encryption ciphers.

                                Of course that Rijndael (AES) is still very secure, not broken, fast in implementation and universally supported.

                                It will remain to the developers’ decision wether Serpent is worth implementing. Nevertheless, PowerArchiver supports strong encryption ciphers and the addition of another is purely optional.

                                Thank you!

                                PAE format is there for legacy purposes these days… real meat is in Secure 256 AES implementation we do in PA format, with some extra work that makes brute force attacks harder to use.

                                Does this apply to the previously mentioned BWTS algorithm? Or does this apply to increased number of rounds / cipher operation mode / key derivation algorithm / something else?

                                mentioned in the wiki and my response above:

                                For added security, we use the BWTS algorithm to scramble the data before AES, so attackers can not use LZ compression redundancy and other plaintext attacks to quickly check if given password is valid.

                                it is done after compression and before AES.

                                1 Reply Last reply Reply Quote 0
                                • 2
                                  2Flo
                                  last edited by Aug 23, 2019, 5:36 PM

                                  Thank you for the insight on this! :)

                                  1 Reply Last reply Reply Quote 0
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