Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8148516 Increase the minimum strength of EC keys
  3. JDK-8148912

Release Note: Improve the default strength of EC in JDK.

    XMLWordPrintable

    Details

    • Type: Sub-task
    • Status: Closed
    • Priority: P2
    • Resolution: Delivered
    • Affects Version/s: 6u141, 7u131, 8u121, 9
    • Fix Version/s: 9
    • Component/s: security-libs

      Backports

        Description

        To improve the default strength of EC cryptography, EC keys less than 224 bits have been deactivated in certification path processing (via the "jdk.certpath.disabledAlgorithms" Security Property) and SSL/TLS/DTLS connections (via the "jdk.tls.disabledAlgorithms" Security Property) in JDK. Applications can update this restriction in the Security Properties and permit smaller key sizes if really needed (for example, "EC keySize < 192").
         
        EC curves less than 256 bits are removed from the SSL/TLS/DTLS implementation in JDK. The new System Property, "jdk.tls.namedGroups", defines a list of enabled named curves for EC cipher suites in order of preference. If an application needs to customize the default enabled EC curves or the curves preference, please update the System Property accordingly. For example:
         
            jdk.tls.namedGroups="secp256r1, secp384r1, secp521r1"
         
        Note that the default enabled or customized EC curves follow the algorithm constraints. For example, the customized EC curves cannot re-activate the disabled EC keys defined by the Java Security Properties.

          Attachments

            Issue Links

              Activity

                People

                Assignee:
                xuelei Xue-Lei Fan
                Reporter:
                xuelei Xue-Lei Fan
                Votes:
                0 Vote for this issue
                Watchers:
                2 Start watching this issue

                  Dates

                  Created:
                  Updated:
                  Resolved: