Each secret property in a setting has an associated "flags" property that describes how to handle that secret. The "flags" property is a bitfield that contains zero or more of the following values logically OR-ed together.
0x0 (none)
- the system is responsible for providing
and storing this secret.
0x1 (agent-owned)
- a user-session secret agent
is responsible for providing and storing this secret; when it is
required, agents will be asked to provide it.
0x2 (not-saved)
- this secret should not be saved
but should be requested from the user each time it is required. This
flag should be used for One-Time-Pad secrets, PIN codes from
hardware tokens, or if the user simply does not want to save the
secret.
0x4 (not-required)
- in some situations it cannot
be automatically determined that a secret is required or not. This
flag hints that the secret is not required and should not be
requested from the user.