TY - RPRT TI - 5th annual PKI R&D workshop "Making PKI easy to use" proceedings AU - Polk, William T AU - Hastings, Nelson E AU - Seamons, Kent PY - 2006 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST IR 7313 DO - 10.6028/NIST.IR.7313 ER -