key: add fingerprint to key config

and set/generate it on
- key creation
- key passphrase change
- key decryption if not already set
- key encryption with master key

Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>

src/bin/proxmox_backup_client/mount.rs

@@ -182,7 +182,7 @@ async fn mount_do(param: Value, pipe: Option<RawFd>) -> Result<Value, Error> {
     let crypt_config = match keyfile {
         None => None,
         Some(path) => {
-            let (key, _) = load_and_decrypt_key(&path, &crate::key::get_encryption_key_password)?;
+            let (key, _, _) = load_and_decrypt_key(&path, &crate::key::get_encryption_key_password)?;
             Some(Arc::new(CryptConfig::new(key)?))
         }
     };