TY - GEN AU - W. Timothy Polk AU - Hildegard Ferraiolo AU - David Cooper C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 2015-06-01 04:06:00 DO - https://doi.org/10.6028/NIST.IR.7863 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 2015 TI - Cardholder authentication for the PIV digital signature key: ER -