On Fri, 11 Mar 2022 17:37:44 GMT, Michael McMahon <micha...@openjdk.org> wrote:

>> Hi,
>> 
>> Could I get the following change reviewed please, which is to disable the 
>> MD5 message digest algorithm by default in the HTTP Digest authentication 
>> mechanism? The algorithm can be opted into by setting a new system property 
>> "http.auth.digest.reEnabledAlgs" to include the value MD5. The change also 
>> updates the Digest authentication implementation to use some of the more 
>> secure features defined in RFC7616, such as username hashing and additional 
>> digest algorithms like SHA256 and SHA512-256.
>> 
>> - Michael
>
> Michael McMahon has updated the pull request incrementally with one 
> additional commit since the last revision:
> 
>   update after second review round

src/java.base/share/classes/sun/net/www/protocol/http/DigestAuthentication.java 
line 102:

> 100:         propPrefix + "reEnabledAlgorithms";
> 101: 
> 102:     private static final Set<String> disabledAlgorithms = new 
> HashSet<>();

It would be much better if this was an immutable set to make it MT-safe. You 
could set the value in the static block below using Set.copyOf().

-------------

PR: https://git.openjdk.java.net/jdk/pull/7688

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