151 search results - page 3 / 31 » Optimal (2, n) visual cryptographic schemes |
FOCS
2007
IEEE
14 years 1 months ago
2007
IEEE
We show for several planar and geometric problems that the best known approximation schemes are essentially optimal with respect to the dependence on ǫ. For example, we show that...
LATINCRYPT
2010
13 years 5 months ago
2010
Abstract. Misty schemes are classic cryptographic schemes used to construct pseudo-random permutations from 2n bits to 2n bits by using d pseudo-random permutations from n bits to ...
FOCS
2006
IEEE
14 years 1 months ago
2006
IEEE
A family of subsets C of [n] def = {1, . . . , n} is (r, t)exclusive if for every S ⊂ [n] of size at least n − r, there exist S1, . . . , St ∈ C with S = S1∪S2∪· · · ...
ISCC
2005
IEEE
14 years 28 days ago
2005
IEEE
We propose routing schemes that optimize the average number of hops for lookup requests in Peer–to–Peer (P2P) systems without adding any overhead to the system. Our work is in...
MYCRYPT
2005
Springer
14 years 25 days ago
2005
Springer
In this paper we produce a practical and efficient algorithm to find a decomposition of type n = k i=1 2si 3ti , si, ti ∈ N ∪ {0} with k ≤ c + o(1) ¡ log n log log n ....