TY - GEN AU - Elaine Barker C2 - Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD DA - 2009-09-23 LA - en PB - Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD PY - 2009 TI - Recommendation for Digital Signature Timeliness UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=901593 ER -