The IESG has concluded that this work is related to IETF work done in WG COSE, but this relationship does not prevent publishing. Additionally, the IESG requests the following note be added to the document if it is published: This document proposes a cryptographic signature algorithm that is claimed to be "post-quantum secure". Development of such algorithms is an active topic of great interest to the Internet community, but the IETF has chosen to defer selection and publication of "post-quantum secure" algorithms until after the conclusion of the NIST "Post-Quantum Cryptography" Project (https://csrc.nist.gov/projects/post-quantum-cryptography). The NIST-sponsored endeavor (whose participants include cryptographic experts from around the world) provides substantially more cryptographic expertise than is available solely within the IETF, and the IESG believes it is in the best interest of the Internet community to take advantage of the in-depth cryptographic reviews performed during the NIST project before selecting "post-quantum secure" algorithms for standardization.