Best algorithm for hashing number values?

Question

When dealing with a series of numbers, and wanting to use hash results for security reasons, what would be the best way to generate a hash value from a given series of digits?

Answer 1

If performance is a factor I suggest to take a look at a CodeCentral entry of Peter Below. It performs very well for large number of items.

By default it uses P.J. Weinberger ELF hashing function. But others are also provided.