[9] RFR: 8168882: keytool doesn't print certificate info if disabled algorithm was used for signing a jar

Artem Smotrakov artem.smotrakov at oracle.com
Tue Nov 8 02:50:48 UTC 2016


Hi Max,

Sure, I'll add a comment which explains why keytool resets that security 
property.

I didn't notice any strange thing happening if SSL server uses weak 
algorithms. Please see updated PrintSSL.java which now uses MD5withRSA.

Artem


On 11/07/2016 06:45 PM, Wang Weijun wrote:
> Hi Artem
>
> Change looks fine, but you can add a comment in keytool/Main on why you want to set that security property.
>
> BTW, you mentioned keytool -printcert -sslserver the other time. Is there any strange thing happening if the SSL server is using weak cert/cipher?
>
> Thanks
> Max
>
>> On Nov 8, 2016, at 9:59 AM, Artem Smotrakov <artem.smotrakov at oracle.com> wrote:
>>
>> Sean, Max,
>>
>> Please take a look at http://cr.openjdk.java.net/~asmotrak/8168882/webrev.03/
>>
>> It doesn't print a warning anymore, and reset the security property only if -jarfile specified. I also updated a couple of tests to check if "-printcert" works fine.
>>
>> Artem
>>
>>
>> On 11/03/2016 05:47 PM, Artem Smotrakov wrote:
>>> Thank you for review Sean.
>>>
>>> I'll remove the warning then. And I'll update it to reset the security property only if a jar file has been specified.
>>>
>>> Let me also check how "-printcert -file ..." and "-printcert -sslserver" work.
>>>
>>> Artem
>>>
>>>
>>> On 11/03/2016 07:27 AM, Wang Weijun wrote:
>>>> I agree with Sean.
>>>>
>>>> --Max
>>>>
>>>>> On Nov 3, 2016, at 10:00 PM, Sean Mullan <sean.mullan at oracle.com> wrote:
>>>>>
>>>>> You should only unset the jdk.jar.disabledAlgorithms property if a jarfile has been specified.
>>>>>
>>>>> Also, you are printing the warning message for all usages of the -printcert option, -ssl, etc, which is not correct.
>>>>>
>>>>> But I don't really think the warning message is necessary. The docs for the -printcert option are pretty clear that it simply extracts the certificate and prints it. If we are going to put a warning in for signed JARs, then arguably we should put in a more general, simple warning in for all usages of this option to say that the certificate, etc is not verified, ex:
>>>>>
>>>>> "WARNING: The -printcert option does not verify the certificate."
>>>>>
>>>>> But again, I don't think this is strictly necessary.
>>>>>
>>>>> Thanks,
>>>>> Sean




More information about the security-dev mailing list