{"id":2794,"date":"2025-12-15T18:42:41","date_gmt":"2025-12-16T02:42:41","guid":{"rendered":"https:\/\/self-issued.info\/?p=2794"},"modified":"2025-12-15T18:42:41","modified_gmt":"2025-12-16T02:42:41","slug":"cose-hpke-spec-aligned-with-jose-hpke-spec","status":"publish","type":"post","link":"https:\/\/self-issued.info\/?p=2794","title":{"rendered":"COSE HPKE Spec Aligned with JOSE HPKE Spec"},"content":{"rendered":"<p><span class=\"plain\"><img decoding=\"async\" align=\"right\" src=\"https:\/\/self-issued.info\/images\/ietf-logo.png\" alt=\"IETF logo\"><\/span>The &#8220;<a href=\"https:\/\/datatracker.ietf.org\/doc\/draft-ietf-cose-hpke\/\">Use of Hybrid Public-Key Encryption (HPKE) with CBOR Object Signing and Encryption (COSE)<\/a>&#8221; specification has been updated to align with pertinent <a href=\"https:\/\/self-issued.info\/?p=2772\">changes recently applied to the JOSE HPKE specification<\/a>.  Changes in <a href=\"https:\/\/www.ietf.org\/archive\/id\/draft-ietf-cose-hpke-19.html\">draft 19<\/a> are:<\/p>\n<ul>\n<li>Utilize distinct algorithm identifiers for the use of HPKE for Integrated Encryption and HPKE for Key Encryption.<\/li>\n<li>Adds HPKE-7 algorithms.<\/li>\n<li>Defines use of the RFC 9052 Enc_structure for COSE HPKE.<\/li>\n<\/ul>\n<p>The next draft of COSE HPKE should update the examples to correspond to these changes.  After that, I believe the next step is to hold another set of concurrent working group last calls (WGLCs) for both specifications.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The &#8220;Use of Hybrid Public-Key Encryption (HPKE) with CBOR Object Signing and Encryption (COSE)&#8221; specification has been updated to align with pertinent changes recently applied to the JOSE HPKE specification. Changes in draft 19 are: Utilize distinct algorithm identifiers for the use of HPKE for Integrated Encryption and HPKE for Key Encryption. Adds HPKE-7 algorithms. [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29,28,32,27,25],"tags":[],"class_list":["post-2794","post","type-post","status-publish","format-standard","hentry","category-cbor","category-cryptography","category-ietf","category-json","category-specifications"],"_links":{"self":[{"href":"https:\/\/self-issued.info\/index.php?rest_route=\/wp\/v2\/posts\/2794","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/self-issued.info\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/self-issued.info\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/self-issued.info\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/self-issued.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2794"}],"version-history":[{"count":1,"href":"https:\/\/self-issued.info\/index.php?rest_route=\/wp\/v2\/posts\/2794\/revisions"}],"predecessor-version":[{"id":2795,"href":"https:\/\/self-issued.info\/index.php?rest_route=\/wp\/v2\/posts\/2794\/revisions\/2795"}],"wp:attachment":[{"href":"https:\/\/self-issued.info\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2794"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/self-issued.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2794"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/self-issued.info\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2794"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}