@misc{1127916, author = {E B Barker and W C Barker and A Lee}, title = {Guideline for implementing cryptography in the federal government:}, year = {2005}, month = {2005-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NIST.SP.800-21e2}, language = {en}, }