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
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io.systemd.xml	creds-util: add a concept of "user-scoped" credentials	2024-01-30 17:07:47 +01:00
meson.build