RFC 9804
Simple Public Key Infrastructure (SPKI) S-Expressions, June 2025
- File formats:
- Also available: XML file for editing
- Status:
- INFORMATIONAL
- Authors:
- R. Rivest
D. Eastlake 3rd - Stream:
- IETF
- Source:
- NON WORKING GROUP
Cite this RFC: TXT | XML | BibTeX
DOI: https://doi.org/10.17487/RFC9804
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Abstract
This memo specifies the data structure representation that was devised to support Simple Public Key Infrastructure (SPKI) certificates, as detailed in RFC 2692, with the intent that it be more widely applicable. It has been and is being used elsewhere. There are multiple implementations in a variety of programming languages. Uses of this representation are referred to in this document as "S-expressions". This memo makes precise the encodings of these SPKI S-expressions: It gives a "canonical form" for them, describes two "transport" representations, and also describes an "advanced" format for display to people.
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 8729.