I have reviewed this document as part of the security directorate’s ongoing effort to review all IETF documents being processed by the IESG. These comments were written primarily for the benefit of the security area directors. Document editors and WG chairs should treat these comments just like any other last call comments. Summary: Ready I don't see any problems with this. The content is thorough. Editorally, though, I might suggest that there is not really enough tutorial information for someone that is not familiar with these sorts of algorithms to understand this document, so perhaps either there could be another document that this points to, complete with figures (which is the only way to really understand these I think), or more tutorial information could be in this document, or perhaps just say in the beginning that the reader is assumed to already understand these algorithms. Radia