The Simple Certificate Validation Protocol (SCVP) defines an
extensible means of delegating the development and validation of
certification paths to a server. It can be used to support the
development and validation of certification paths well after the
expiration of the certificates in the path by specifying a time of
interest in the past. The Evidence Record Syntax (ERS) defines
structures, called evidence records, to support non-repudiation of
existence of data. Evidence records can be used to preserve
materials that comprise a certification path such that trust in the
certificates can be established after the expiration of the
certificates in the path and after the cryptographic algorithms used
to sign the certificates in the path are no longer secure. This
document describes an application of SCVP to serve this purpose using
the WantBack feature of SCVP to convey evidence records.
Working Group Summary
This document is a product of the LTANS working group. This document
reflects the rough consensus of the working and passed through the
working group without notable controversies.
One implementation of the protocol is known. An open source
initiative to implement LTANS specifications appears to have
stalled. No other implementation plans have been announced.
Tobias Gondrom is the document shepherd for this document. Tim Polk
reviewed this for the IESG.