RESOLVED WONTFIX 129127
JWK export should be padded to 8*n bytes 
https://bugs.webkit.org/show_bug.cgi?id=129127
Summary JWK export should be padded to 8*n bytes
Alexey Proskuryakov
Reported 2014-02-20 16:07:17 PST
As AES-KW can only wrap keys that are 8*n bytes bytes long, wrapping a CryptoKey in JWK format is only possible when the exported key happens to be of that size. See <https://www.w3.org/Bugs/Public/show_bug.cgi?id=24457>. We should probably wait to see if a particular form of padding gets prescribed. When done, we should re-add a subtest to crypto/subtle/aes-kw-wrap-unwrap-aes.html that was removed in <http://trac.webkit.org/r163244>.
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Radar WebKit Bug Importer
Comment 1 2016-08-15 17:59:19 PDT
<rdar://problem/27858069>
Jiewen Tan
Comment 2 2016-11-07 18:30:57 PST
Per discussion of the W3C thread and the most updated spec: https://www.w3.org/TR/WebCryptoAPI/#aes-kw-operations, and Editor's draft: https://w3c.github.io/webcrypto/Overview.html#aes-kw-operations. This padding restriction becomes a check on the wrapKey operation of AES-KW. Therefore, this bug is obsolete.
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