![]() This had the benefit of being very easy to implement a client for, as it’s just standard web traffic. In this case, it means the browser can communicate with KeePassXC in a way that means other applications can’t.īefore, the browser communicated with KeePassXC over HTTP, using the KeePassHTTP protocol. Native messaging is a way of two processes communicating in a secure-ish manor. Once the key is installed, I backed up the old key offline (just in case), and deleted it. ![]() As this re-encrypts the database with a new master key, you can enter a new password here to change it. Select the new key, and enter your current password, and apply. To use the new key, you need to change the key file in the master key settings (Database > Change master key). I don’t exactly know what the command is doing, but it looks more complex, so that must mean it’s more cryptographically secure, right? #Install the new key The above uses a mixture of OpenSSL, and the system’s random number generator. ![]() These can both be done in the Encryption settings for your database (Database > Database Settings). To migrate to KDBX4, you must change the Encryption Algorithm to “ChaCha20”, and the Key Derivation Function to “Argon2”. Full technical information, and the exact changes can be found on the KeePass website, however it’s not necessary to actually know how it works. There are many format improvements, including support for Argon2, custom data in groups and file attachments to entries. KDBX4 is the latest version of the KeePass database format. There’s little canonical documentation on how to upgrade to use these features, so I’ve written my own! #KDBX4 These new features require some changes to the system, your database file, and browser.
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