TY - GEN AU - C M Chernick C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 2002-01-01 05:01:00 DO - https://doi.org/10.6028/NIST.SP.800-49 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 2002 TI - Federal SMIME V3 client profile: ER -