{"id":1986,"date":"2019-07-08T17:56:50","date_gmt":"2019-07-09T00:56:50","guid":{"rendered":"https:\/\/self-issued.info\/?p=1986"},"modified":"2019-07-08T17:56:50","modified_gmt":"2019-07-09T00:56:50","slug":"refinements-to-cose-and-jose-registrations-for-webauthn-algorithms","status":"publish","type":"post","link":"https:\/\/self-issued.info\/?p=1986","title":{"rendered":"Refinements to COSE and JOSE Registrations for WebAuthn Algorithms"},"content":{"rendered":"<p><span class=\"plain\"><img decoding=\"async\" align=\"right\" alt=\"IETF logo\" src=\"https:\/\/self-issued.info\/images\/ietf-logo.png\"><\/span>The &#8220;COSE and JOSE Registrations for WebAuthn Algorithms&#8221; specification has been updated to address feedback received since working group adoption.  The one breaking change is changing the secp256k1 curve identifier for JOSE from &#8220;<code>P-256K<\/code>&#8221; to &#8220;<code>secp256k1<\/code>&#8220;, for reasons described by John Mattsson.  The draft now also specifies that the SHA-256 hash function is to be used with &#8220;<code>ES256K<\/code>&#8221; signatures &#8211; a clarification due to Matt Palmer.<\/p>\n<p>The specification is available at:<\/p>\n<ul>\n<li><a href=\"https:\/\/tools.ietf.org\/html\/draft-ietf-cose-webauthn-algorithms-01\">https:\/\/tools.ietf.org\/html\/draft-ietf-cose-webauthn-algorithms-01<\/a><\/li>\n<\/ul>\n<p>An HTML-formatted version is also available at:<\/p>\n<ul>\n<li><a href=\"https:\/\/self-issued.info\/docs\/draft-ietf-cose-webauthn-algorithms-01.html\">https:\/\/self-issued.info\/docs\/draft-ietf-cose-webauthn-algorithms-01.html<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>The &#8220;COSE and JOSE Registrations for WebAuthn Algorithms&#8221; specification has been updated to address feedback received since working group adoption. The one breaking change is changing the secp256k1 curve identifier for JOSE from &#8220;P-256K&#8221; to &#8220;secp256k1&#8220;, for reasons described by John Mattsson. The draft now also specifies that the SHA-256 hash function is to be [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29,28,32,27,25,33],"tags":[],"class_list":["post-1986","post","type-post","status-publish","format-standard","hentry","category-cbor","category-cryptography","category-ietf","category-json","category-specifications","category-w3c"],"_links":{"self":[{"href":"https:\/\/self-issued.info\/index.php?rest_route=\/wp\/v2\/posts\/1986","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=1986"}],"version-history":[{"count":2,"href":"https:\/\/self-issued.info\/index.php?rest_route=\/wp\/v2\/posts\/1986\/revisions"}],"predecessor-version":[{"id":1988,"href":"https:\/\/self-issued.info\/index.php?rest_route=\/wp\/v2\/posts\/1986\/revisions\/1988"}],"wp:attachment":[{"href":"https:\/\/self-issued.info\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1986"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/self-issued.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1986"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/self-issued.info\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1986"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}