Bug #123330 for File-KeePass: kdbx 4 support

Hello, KeePass is currently transitioning to a revised file format, kdbx 4: https://keepass.info/help/kb/kdbx_4.html This new file format offers several improvements compared to the previous one, notably: * cryptography refresh: support for ChaCha20 and Argon2; * storage for custom data. The changes to the file format are described in the web pages linked above. KeePassX has kdbx 4 support in git: https://github.com/keepassx/keepassx/pull/200 KeePassXC has an open pull request (waiting for implementation improvements) for kdbx 4 support: https://github.com/keepassxreboot/keepassxc/issues/148 During the transition period, KeePass keeps the old file format unless features requiring the new ones are used. My understanding is that at some point in the future the new file format will become mandatory. The current release of File::KeePass would then become unable to read KeePass databases. Having kdbx 4 support in File::KeePass (and tools that depend on File::KeePass, e.g. kpcli) would be useful, hence this bug report. Moreover, it would be nice to have a public bug report to track progress on this issue. Although it's not really relevant, here is the information required for bug reports on rt.cpan.org: ================================================================================ $ uname -a Linux uldune 4.12.0-0.bpo.2-amd64 #1 SMP Debian 4.12.13-1~bpo9+1 (2017-09-28) x86_64 GNU/Linux $ perl -v This is perl 5, version 24, subversion 1 (v5.24.1) built for x86_64-linux-gnu-thread-multi (with 75 registered patches, see perl -V for more detail) Copyright 1987-2017, Larry Wall Perl may be copied only under the terms of either the Artistic License or the GNU General Public License, which may be found in the Perl 5 source kit. Complete documentation for Perl, including FAQ lists, should be found on this system using "man perl" or "perldoc perl". If you have access to the Internet, point your browser at http://www.perl.org/, the Perl Home Page. $ dpkg -l libfile-keepass-perl Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-==============-============-============-================================= ii libfile-keepas 2.03-1 all interface to KeePass V1 and V2 da ================================================================================ Best regards, and many thanks for File::KeePass! -- Lionel