Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8226543

Reduce GC pressure during message digest calculations in password-based encryption

    XMLWordPrintable

Details

    Backports

      Description

        In PBES1Core.deriveCipherKey() there are loops that look like following:

                    for (int i = 0; i < iCount; i++) {
                        md.update(toBeHashed);
                        toBeHashed = md.digest(); // this resets the digest
                    }
        Calling md.digest() each time allocates a new byte[] array.
        It would be more GC friendly, if the same array were reused.

        Attachments

          Issue Links

            backported by

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8227245 Reduce GC pressure during message digest calculations in password-based encryption

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8227290 Reduce GC pressure during message digest calculations in password-based encryption

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8227342 Reduce GC pressure during message digest calculations in password-based encryption

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8227733 Reduce GC pressure during message digest calculations in password-based encryption

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8228345 Reduce GC pressure during message digest calculations in password-based encryption

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8228349 Reduce GC pressure during message digest calculations in password-based encryption

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8228870 Reduce GC pressure during message digest calculations in password-based encryption

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8228884 Reduce GC pressure during message digest calculations in password-based encryption

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8229674 Reduce GC pressure during message digest calculations in password-based encryption

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8235021 Reduce GC pressure during message digest calculations in password-based encryption

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8227712 Reduce GC pressure during message digest calculations in password-based encryption

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Closed
            links to

            Web Link Review request at security-dev alias

            Activity

              People

                igerasim Ivan Gerasimov
                igerasim Ivan Gerasimov
                Votes:
                0 Vote for this issue
                Watchers:
                3 Start watching this issue

                Dates

                  Created:
                  Updated:
                  Resolved: