RFR: 8235710: Remove the legacy elliptic curves [v3]

[Anthony Scarpino]

On Thu, 24 Sep 2020 19:48:45 GMT, Weijun Wang <weijun at openjdk.org> wrote:

>> Anthony Scarpino has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   change exception for ec keyagreement
>>   fix supportedcurves in SunEC
>
> src/java.base/share/conf/security/java.security line 636:
> 
>> 634: #
>> 635: jdk.certpath.disabledAlgorithms=MD2, MD5, SHA1 jdkCA & usage TLSServer, \
>> 636:     RSA keySize < 1024, DSA keySize < 1024, EC keySize < 224
> 
> `jdk.disabled.namedCurves` still exists. If someone decides to add a curve there, shouldn't it be also disabled here?

jdk.disabled.namedCurves is commented out and I don't think it's good for every operation disabled algorithms call to
check an empty property.  The description for the disabledAlgorithm properties say you have to use "include", so I
don't think it is necessary to we keep it active..

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PR: https://git.openjdk.java.net/jdk/pull/289