This is a bug in NSS. Here's the corresponding bug I filed against Chromium: https://code.google.com/p/chromium/issues/detail?id=349775
Wait, nobody does ECC client certificate TLS right?
iOS security bug – TLS mutual-auth fails with client elliptic curve keys
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Re: iOS security bug – TLS mutual-auth fails with client elliptic curve keys
#12This is a bug in NSS. Here's the corresponding bug I filed against Chromium: https://code.google.com/p/chromium/issues/detail?id=349775
Wait, nobody does ECC client certificate TLS right?
It's been fixed, but that was a bug in Chrome's NSS glue between NSS and the OS X native key store. (The fix is under third_party/nss, but no one else carries that particular file.) As far as I know, it works fine on other platforms and in NSS itself.