4 ms·
SSSS isn’t always used with fixed-size symmetric keys, in which case length can leak something important. But in practice it often is, since share size increase
by e79 6y ago
SSSS isn’t always used with fixed-size symmetric keys, in which case length can leak something important. But in practice it often is, since share size increases with message size and that can get unwieldy. So it isn’t usually an issue.
- maxfan8 6y agoMy point is that there is no reason why you wouldn’t used fixed-size symmetric keys which are more performant, prevent leaking message size, and have all the other security properties that you’d get if you just used SSSS.