A Formal Semantics for SPKI

We extend the logic and semantics of authorization due to Abadi, Lampson, et al. to support restricted delegation. Our formal model provides a simple interpretation for the variety of constructs in the Simple Public Key Infrastructure (SPKI), and lends intuition about possible extensions. We discuss both extensions that our semantics supports and extensions that it cautions against.

• Type: Conference
• Year: 2000
• Where: ESORICS
• Authors: Jon Howell, David Kotz
• Keywords: ESORICS 2000, Possible Extensions, Security Privacy, Simple Interpretation, Simple Public Key Infrastructure