Lattice basis files from the Darmstadt SVP Challenge (https://www.latticechallenge.org/svp-challenge/)
This is the original basis of dimension XX and seed YY obtained from SVP Challenge site.
This is the basis for dimension XX and seed YY reduced by the BKZ algorithm with a block size of 20 of fplll library (https://github.com/fplll/fplll).
Command is fplll basis_file -a bkz -b 20