Low-water mark is an extension to Biba Model. In Biba model, no write up and no read down rules are enforced. In this model the rules are exactly opposite of the rules in Bell-La Padula model. In the low-water mark model, read down is permitted, but the subject label, after reading will be degraded to object label. It can be classified in floating label security models.
Read more about this topic: High-water Mark (computer Security)
Famous quotes containing the word mark:
“But the golden-rod is one of the fairy, magical flowers; it grows not up to seek human love amid the light of day, but to mark to the discerning what wealth lies hid in the secret caves of earth.”
—Margaret Fuller (1810–1850)