Short-Lived Certificates for Secure Telephone Identity

Document Type Expired Internet-Draft (individual)
Author Jon Peterson 
Last updated 2018-09-06 (latest revision 2018-03-05)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


When certificates are used as credentials to attest the assignment of ownership of telephone numbers, some mechanism is required to provide certificate freshness. This document specifies short-lived certificates as a means of guaranteeing certificate freshness for secure telephone identity (STIR), in particular relying on the Automated Certificate Management Environment (ACME) to allow signers to acquire certifcates as needed.


Jon Peterson (

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