JCT
2011
13 years 6 months ago
2011
This paper aims to present a new upper bound on the size of separating hash families. This bound improves previously known bounds for separating hash families of general type. Key...
TIT
2008
13 years 11 months ago
2008
We present some improved bounds on necessary conditions for separating hash families of type {w, w} and type {w, w - 1}. In particular, these bounds apply to secure frameproof cod...
DCC
2007
IEEE
14 years 11 months ago
2007
IEEE
A linear (qd, q, t)-perfect hash family of size s in a vector space V of order qd over a field F of order q consists of a set S = {1, . . . , s} of linear functionals from V to F ...