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Services/KeyExchange: Difference between revisions
→Detailed Flow
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<pre>C: GET /new_channel HTTP/1.1 | <pre>C: GET /new_channel HTTP/1.1 | ||
S: "a7id"</pre></li> | S: "a7id"</pre></li> | ||
<li>Mobile generates PIN from random weak secret (4 characters a-z0-9) and the channel ID, computes and uploads J-PAKE msg 1 | <li>Mobile generates PIN from random weak secret (4 characters a-z0-9) and the channel ID, computes and uploads J-PAKE msg 1. To prevent double uploads in case of retries, the If-None-Match: * header is specified. This makes sure that the message is only uploaded if the channel is empty. If it is not then the request will fail with a 412 Precondition Failed which should be considered the same as 200 OK. The 412 will also contain the Etag of the data was the client just uploaded. | ||
<pre> | <pre> | ||
C: PUT /a7id HTTP/1.1 | C: PUT /a7id HTTP/1.1 | ||