The existing controls relating to the use of DSA have been rescinded, as has its status as an AACA, following the recent withdrawal of Federal Information Processing Standard (FIPS) 186-4 by the United States’ National Institute of Standards and Technology (NIST). [ISM-0473, ISM-1630, ISM-1760]
Mar 2022
DSA is not used for digital signatures.
The existing table outlining cryptographic algorithms for use with High Assurance Cryptographic Equipment has been converted into discrete recommendations. Furthermore, the recommendation to give preference to the United State’s Commercial National Security Algorithm suite algorithms and key sizes (ISM-1232) has been rescinded in preference to including recommended key lengths for each individual algorithm.