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. EDITORIAL COMMENTS In the Abstract, the acronym IDPKC doesn't match the capitalized letters in its expansion. Suggestion: s/Identifier-based Public Key Cryptography/Identifier-Based Public Key Cryptography/ In section 1, paragraph 2, s/legislation/legislations/. Why is the word "identifier" (and variants) persistently capitalized? It doesn't appear to be being used as a proper noun. In the title of section 2, s/Mode;/Mode:/. In section 2.1, paragraph 1, the acronym "TGK" is not expanded on first use. There is no IANA Considerations section, FULL STOP.