DSig

• Provide a mechanism to express in a machine readable form:
  signer believes statement about resource
• Build on existing technologies
  1. Assertions: PICS 1.1 / RDF
  2. Signatures: PKCS 7 (etc.), PGP, DSS
  3. Certificates: X.509, SDSI 2.0, PGP

DSig adds Assertions and automatability

signer believes statement about object
Statement is machine readable (PICS/RDF syntax)

• DSig 1.0 is a working draft
  Spec available to members now
  Freeware implementation about to complete
• DSig 2.0 is about to launch
  Likely to be very rapid
  Expect rapid commercial adoption
  Plug-and-play will allow incremental adoption

Joseph M. Reagle