The purpose of the SIDR working group is to reduce vulnerabilities in the inter-domain routing system. The two vulnerabilities that will be addressed are: * Is an Autonomous System (AS) authorized to originate an IP prefix * Is the AS-Path represented in the route the same as the path through which the NLRI traveled The SIDR working group will take practical deployability into consideration. Building upon the already completed and implemented framework: * Resource Public Key Infrastructure (RPKI) * Distribution of RPKI data to routing devices and its use in operational networks * Document the use of certification objects within the secure routing architecture This working group will specify security enhancements for inter-domain routing protocols.