The most prominent general deployments of SPKI/SDSI are E-speak, a middleware product from HP that used SPKI/SDSI for access control of web methods, and UPnP Security, that uses an XML dialect of SPKI/SDSI for access control of web methods, delegation of rights among network participants, etc.
Committee of Public Safety | New York Public Library | Public school (government funded) | public school | public | Key West | Simple Minds | Public Enemy | public relations | GNU General Public License | public domain | Public-access television | Key West, Florida | Public Radio International | Harvard School of Public Health | Public Enemy (band) | Chicago Public Schools | United States Public Health Service | Key Club | Boston Public | Public relations | The Simple Life | Francis Scott Key | public health | Simple Plan | Public Works Administration | Public speaking | Simple Network Management Protocol | Public Image Ltd | Minnesota Public Radio |
Buldas was a leading contributor to the Estonian Digital Signature Act and ID-card from 1996 to 2002, currently the only national-level public-key infrastructure (PKI) which has achieved widespread adoption by a country's population for legally binding digital signatures.