4 Commits

Author	SHA1	Message	Date
Lennart Poettering	48d67957d5	creds-util: add a concept of "user-scoped" credentials ... So far credentials are a concept for system services only: to encrypt or decrypt credential you must be privileged, as only then you can access the TPM and the host key. Let's break this up a bit: let's add a "user-scoped" credential, that are specific to users. Internally this works by adding another step to the acquisition of the symmetric encryption key for the credential: if a "user-scoped" credential is used we'll generate an symmetric encryption key K as usual, but then we'll use it to calculate K' = HMAC(K, flags || uid || machine-id || username) and then use the resulting K' as encryption key instead. This basically includes the (public) user's identity in the encryption key, ensuring that only if the right user credentials are specified the correct key can be acquired.	2024-01-30 17:07:47 +01:00
Lennart Poettering	16d4aed919	mime: also add magic-based mime type rules for our other binary files ... No immediate usecase, it's just nice that if you browser these files with a graphical file manager you see them recognized as what they are.	2024-01-17 22:52:19 +01:00
Lennart Poettering	2dda9c779e	mime: expose a mime type for encrypted credentials ... Let's make things nice for desktops, and provide a mime type for credential files. This uses the 128bit header identifier that our credential files start with. However, the files are always base64 encoded, hence we have to match the base64 string, hence add a small test case that generates them properly for us, and truncates them at the right place (since 128 is not evently divisable by 6).	2024-01-17 22:51:44 +01:00
Lennart Poettering	eb981a5b9b	mime: register confext/sysext images in shared-mime-info ... This make them recognized by file managers and stuff. Maybe one day we should properly register mime types in the "vnd." namespace with IANA, but I am too lazy to deal with the bureaucracy for that, hence let's stick with the x. namespace for now. This defines confext/sysext DDIs as subtype of: https://www.iana.org/assignments/media-types/application/vnd.efi.img Which is what everyone appears to use for raw disk images, in particular if they contain a GPT partition table.	2023-12-06 22:11:21 +01:00