Münster University of Applied Sciences Google Google Mozilla Corporation The Stream Control Transmission Protocol (SCTP) uses a 32-bit checksum in the common header of each packet to provide some level of data integrity. When the lower layer used by SCTP provides already the same or a higher level of data integrity, computing this checksum does not provide any additional protection, but does require computing resources. This document provides a simple extension to SCTP allowing to save these computing resources by using the constant 0 as the checksum in a backwards compatible way.