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<p class="MsoNormal">Spec call notes 18-Jul-11<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Nat Sakimura<o:p></o:p></p>
<p class="MsoNormal">Mike Jones<o:p></o:p></p>
<p class="MsoNormal">John Bradley<o:p></o:p></p>
<p class="MsoNormal">Edmund Jay<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Agenda:<o:p></o:p></p>
<p class="MsoNormal"> Encryption spec<o:p></o:p></p>
<p class="MsoNormal"> Anonymous client flow using asymmetric signatures<o:p></o:p></p>
<p class="MsoNormal"> Implementation update<o:p></o:p></p>
<p class="MsoNormal"> Feedback update<o:p></o:p></p>
<p class="MsoNormal"> Structure for reorganizing the specs<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Encryption<o:p></o:p></p>
<p class="MsoNormal"> Mike implementing in .NET<o:p></o:p></p>
<p class="MsoNormal"> Maybe get Breno to do Java version<o:p></o:p></p>
<p class="MsoNormal"> Edmund updating PHP library<o:p></o:p></p>
<p class="MsoNormal"> Could maybe do encryption<o:p></o:p></p>
<p class="MsoNormal"> Not doing integrity check if function doesn't support it<o:p></o:p></p>
<p class="MsoNormal"> Using key wrap function from XMLDSIG, rather than from JSMS<o:p></o:p></p>
<p class="MsoNormal"> An interesting question whether AES-GCM implemented in PHP<o:p></o:p></p>
<p class="MsoNormal"> Can call out to openssl, but sometimes fraught with peril<o:p></o:p></p>
<p class="MsoNormal"> Left OAEP out of list in 7.1<o:p></o:p></p>
<p class="MsoNormal"> May need to change OAEP definition. Uses 2 hash functions:<o:p></o:p></p>
<p class="MsoNormal"> 1. One has to do with key size of thing you're encrypting - should be as big as RSA key size<o:p></o:p></p>
<p class="MsoNormal"> Should be SHA-256,384,512 family<o:p></o:p></p>
<p class="MsoNormal"> 2. Has to do with how intermediate internal values in padding are calculated<o:p></o:p></p>
<p class="MsoNormal"> John will send reference and recommendations<o:p></o:p></p>
<p class="MsoNormal"> Mike asked John to sanity check the current JCA values<o:p></o:p></p>
<p class="MsoNormal"> John and Nat to provide encryption spec feedback within 24 hours<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Anonymous client flow using asymmetric signatures<o:p></o:p></p>
<p class="MsoNormal"> What Mozilla BrowserID is doing<o:p></o:p></p>
<p class="MsoNormal"> Not OAuth, so no client or RP identification in BrowserID<o:p></o:p></p>
<p class="MsoNormal"> Could have anonymous clients with unregistered clients using token flow<o:p></o:p></p>
<p class="MsoNormal"> Send to the introspection endpoint<o:p></o:p></p>
<p class="MsoNormal"> Get something useful without client registration<o:p></o:p></p>
<p class="MsoNormal"> Can get userid and access token to use at UserInfo endpoint<o:p></o:p></p>
<p class="MsoNormal"> John will write up an informal proposal for the list<o:p></o:p></p>
<p class="MsoNormal"> Almost indistinguishable flow from BrowserID except for IdP Discovery part<o:p></o:p></p>
<p class="MsoNormal"> Can be done in JavaScript<o:p></o:p></p>
<p class="MsoNormal"> No discovery needed for BrowserID since uses a central service run by Mozilla<o:p></o:p></p>
<p class="MsoNormal"> They eventually plan to remove need for service by building client into the browser<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Implementation update<o:p></o:p></p>
<p class="MsoNormal"> Google announced theirs (in incomplete state)<o:p></o:p></p>
<p class="MsoNormal"> Ryo Ito did test RP - specific to Google endpoint<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Feedback update<o:p></o:p></p>
<p class="MsoNormal"> Chuck Mortimore sent feedback today - need to review<o:p></o:p></p>
<p class="MsoNormal"> On July 13, Andrew Arnott had comments to AB list<o:p></o:p></p>
<p class="MsoNormal"> Nat responded on the list<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Structure for reorganizing the specs<o:p></o:p></p>
<p class="MsoNormal"> John and Nat will talk in person in Colorado<o:p></o:p></p>
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