JDK-8207775 : Better management of CipherCore buffers
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The com.sun.crypto.provider.CipherCore class allocates temporary internal buffers for internal functionality. Some users are requesting that these buffers be cleared after use.
Removing JDK 11u fix request until JDK-8209862 is fully assessed.
Performance issues reported via JDK-8209862
A useful fix to have in JDK 11 LTS. The JDK libraries should make best efforts to protect contents of crypto buffers and keystores. The patch involves tighening up crypto code so that buffer contents are deleted as soon as is practical. A test case for these fixes is not practical but I'd be happy to describe how to manually verify with SQE teams.
Patches should apply cleanly.