{"draft":"draft-rivest-sexp-13","doc_id":"RFC9804","title":"Simple Public Key Infrastructure (SPKI) S-Expressions","authors":["R. Rivest","D. Eastlake 3rd"],"format":["HTML","TEXT","PDF","XML"],"page_count":"22","pub_status":"INFORMATIONAL","status":"INFORMATIONAL","source":"IETF - NON WORKING GROUP","abstract":"This memo specifies the data structure representation that was\r\ndevised to support Simple Public Key Infrastructure (SPKI)\r\ncertificates, as detailed in RFC 2692, with the intent that it be\r\nmore widely applicable. It has been and is being used elsewhere.\r\nThere are multiple implementations in a variety of programming\r\nlanguages. Uses of this representation are referred to in this\r\ndocument as \"S-expressions\". This memo makes precise the encodings\r\nof these SPKI S-expressions: It gives a \"canonical form\" for them,\r\ndescribes two \"transport\" representations, and also describes an\r\n\"advanced\" format for display to people.","pub_date":"June 2025","keywords":["Sexp","Sexpression","S-expression"],"obsoletes":[],"obsoleted_by":[],"updates":[],"updated_by":[],"see_also":[],"doi":"10.17487\/RFC9804","errata_url":null}