17. A computer-readable storage medium of claim 16 , wherein the apparatus is caused further to perform: selectively combining signatures into supersignatures by multiplying irreducible polynomials corresponding to the signatures, the supersignatures corresponding to supersignature fragments; causing at least in part storage of the supersignature fragments in the signature domain; for each of the queries, searching for a supersignature fragment corresponding to each query; and responding to each query with the searched signature fragments, the supersignature fragments, or a combination thereof.
16. A computer-readable storage medium of claim 15 , wherein the apparatus is caused further to perform: for each of the queries, searching for signature fragments corresponding to each query; and responding to each query with the searched signature fragments.