@misc{1160441,
  author = {Dennis K Branstad},
  title = {Computer security and the data encryption standard:},
  year = {1978},
  month = {1978-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.SP.500-27},
  language = {en},
}