Cisco Apple Apple This document addresses two omissions in the Secure Frames (SFrame) protocol specification. First, the definition of the IANA registry for SFrame ciphersuites omits several important fields. This document requests that IANA add those fields and defines the contents of those fields for current entries. Second, the AEAD construction based on AES-CTR and HMAC is defined only for the 128-bit security level. This document registers parallel constructions at the 256-bit security level.