lll_spect

LLL-spectral test of linear congruential random number generators

This software calculates a normalized version of the classical spectral test for linear congruential pseudorandom number generators (LCGs), where the shortest vector is replaced by an approximation obtained with the Lenstra-Lenstra-Lovasz basis reduction algorithm, which can be calculated in polynomial time. The code is able to test in up to 24 dimensions, and includes an example of how to use the test to search for good LCG parameters.