RFR: 3 security-libs release notes on keytool/krb5/etc

[Weijun Wang]

I'll use "short key".

Thanks
Max

On 03/24/2017 06:26 PM, Bernd Eckenfels wrote:
> I wonder if "weak key" should be replaced by "weak key length" or "short
> key". It might otherwise imply key quality tests which are not carried out.
>
> Gruss
> Bernd
> --
> http://bernd.eckenfels.net
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> ------------------------------------------------------------------------
> *From:* security-dev <security-dev-bounces at openjdk.java.net> on behalf
> of Weijun Wang <weijun.wang at oracle.com>
> *Sent:* Friday, March 24, 2017 2:12:01 AM
> *To:* Security Dev OpenJDK
> *Subject:* RFR: 3 security-libs release notes on keytool/krb5/etc
>
> Hi All
>
> Please take a review on 3 release notes. The content itself is pasted as
> quotation below.
>
> https://bugs.openjdk.java.net/browse/JDK-8176087
> keytool now prints warnings when reading or generating cert/cert req
> using weak algorithms
>
>> In all keytool functions, if the certificate/certificate request/CRL
>> that is working on (whether it be the input, the output, or an
>> existing object) is using a weak algorithm or key, a warning will be
>> printed out.
>>
>> Precisely, an algorithm or a key is weak if it matches the value of
>> the jdk.certpath.disabledAlgorithms security property defined in
>> conf/security/java.security.
>
> https://bugs.openjdk.java.net/browse/JDK-8174143
> Deprecate security APIs that have been superseded
>
>> The classes and interfaces in the `java.security.acl` and
>> `javax.security.cert` packages have been superseded by replacements
>> for a long time and are deprecated in JDK 9. Two methods
>> `javax.net.ssl.HandshakeCompletedEvent.getPeerCertificateChain()` and
>> `javax.net.ssl.SSLSession.getPeerCertificateChain()` are also
>> deprecated since they return the
>> `javax.security.cert.X509Certificate` type.
>
> https://bugs.openjdk.java.net/browse/JDK-8168635
> rcache interop with krb5-1.15
>
>> The hash algorithm used in the Kerberos 5 replay cache file (rcache)
>> is updated from MD5 to SHA256 with this change. This is also the
>> algorithm used by MIT krb5-1.15. This change is interoperable with
>> earlier releases of MIT krb5, which means Kerberos 5 acceptors from
>> JDK 9 and MIT krb5-1.14 can share the same rcache file.
>>
>> A new system property named jdk.krb5.rcache.useMD5 is introduced. If
>> the system property is set to "true", JDK 9 will still use the MD5
>> hash algorithm in rcache. This is useful when both of the following
>> conditions are true: 1) the system has a very coarse clock and has to
>> depend on hash values in replay attack detection, and 2)
>> interoperability with earlier versions of JDK or MIT krb5 for rcache
>> files is required. The default value of this system property is
>> "false".
>
> Thanks
> Max
>
>
>