@misc{253356, author = {Paul Grassi and Michael Garcia and James Fenton}, title = {Digital Identity Guidelines [includes updates as of 03-02-2020]}, year = {2020}, month = {2020-03-02}, publisher = {Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NIST.SP.800-63-3}, language = {en}, }