Session Key Interface (SKI) for TLS and DTLS

Document Type Replaced Internet-Draft (individual)
Authors Kelsey Cairns  , John Preuß Mattsson  , Robert Skog  , Daniel Migault 
Last updated 2016-04-21 (latest revision 2015-10-19)
Replaced by draft-mglt-lurk-tls12
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document describes a session key interface that can be used for TLS and DTLS. The Heartbleed attack has clearly illustrated the security problems with storing private keys in the memory of the TLS server. Hardware Security Modules (HSM) offer better protection but are inflexible, especially as more (D)TLS servers are running on virtualized servers in data centers.


Kelsey Cairns (
John Preuß Mattsson (
Robert Skog (
Daniel Migault (

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