TY - RPRT TI - Electronic authentication guideline AU - Burr, W E AU - Dodson, D F AU - Polk, W T PY - 2006 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST SP 800-63v1.0.2 DO - 10.6028/NIST.SP.800-63v1.0.2 ER -