Send, export, fax, download, or print out your document. Improve your day-to-day document routines with Doc Editor - Spki. Form edit decoration. Keeping up ... PdfFiller is doc editor spki and form builder - it's easy to use, fast, and stable. Use it to start saving time and money! PDF Editor - Spki - edit your PDFs easily. Create and change forms, add signatures and other elements to documents in minutes. Try Form Application - Spki solutions online. Use PDF editor and build professional documents. Customize and change them easily. The format of SPKI objects is a simplified form of S-expression. An S-expression is a list enclosed in matching "(" and ")", similar to the recursive list data ... By C Ellison · 1999 · Cited by 267 ? The IETF Simple Public Key Infrastructure [SPKI] Working Group is tasked with producing a certificate structure and operating procedure to meet the needs of the Internet community for trust management. Simple public key infrastructure (SPKI, pronounced spoo-key) was an attempt to overcome the complexity of traditional X.509 public key infrastructure. 1 Answer. Short version: SPKI links not only names, but authorizations to keys. Also, it uses a better syntax (S-expressions) than X. 509 ... SPKI/SDSI certificates are expressed and communicated as canonical S-expressions. An S-expression is of power equivalent to XML (Extensible Markup Language). Concluded WG Simple Public Key Infrastructure (spki) ; 14 pages. RFC 2692 (was draft-ietf-spki-cert-req) SPKI Requirements. 1999-09, Experimental RFC.