Signature Validation Token

The information below is for an old version of the document
Document Type Expired Internet-Draft (individual)
Authors Stefan Santesson  , Russ Housley 
Last updated 2021-04-24 (latest revision 2020-10-21)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Electronic signatures have a limited lifespan with respect to the time period that they can be validated and determined to be authentic. The Signature Validation Token (SVT) defined in this specification provides evidence that asserts the validity of an electronic signature. The SVT is provided by a trusted authority, which asserts that a particular signature was successfully validated according to defined procedures at a certain time. Any future validation of that electronic signature can be satisfied by validating the SVT without any need to also validate the original electronic signature or the associated digital certificates. SVT supports electronic signatures in CMS, XML, and PDF documents.


Stefan Santesson (
Russ Housley (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)