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Posted to dev@ws.apache.org by "Joseph Athman (Jira)" <ji...@apache.org> on 2020/06/04 13:44:00 UTC

[jira] [Commented] (WSS-673) Using default Java Security and Merlin is very slow for PKCS12

    [ https://issues.apache.org/jira/browse/WSS-673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17125929#comment-17125929 ] 

Joseph Athman commented on WSS-673:
-----------------------------------

I think one of the reasons this was so much more apparent to us is that our system often will send many outbound requests all at once (sometimes over 100 at a time). This causes a noticeable CPU spike since every outgoing request has to redo the private key decryption individually. 

We are going to work around this by extending the `Merlin` class and adding a caching mechanism to that. I think it would be nice to have something like that built in to WSS4J though.

> Using default Java Security and Merlin is very slow for PKCS12
> --------------------------------------------------------------
>
>                 Key: WSS-673
>                 URL: https://issues.apache.org/jira/browse/WSS-673
>             Project: WSS4J
>          Issue Type: Improvement
>          Components: WSS4J Core
>    Affects Versions: 2.2.5
>            Reporter: Joseph Athman
>            Assignee: Colm O hEigeartaigh
>            Priority: Major
>
> We use WSS4J to create SAML digital signatures. Recently, we switch from storing our client private key from a JKS file to PKCS12 file. This seems to have had the unintended consequence of causing huge spikes in CPU usage.
> After investigating the root cause, I believe the problem lies with the way WSS4J will retrieve a new instance of the private key for every request. With a PKCS12 file this appears to be extremely slow and CPU intensive due to the amount of time it takes to decrypt the private key.
> I'm wondering if there is some way to have WSS4J cache this private key lookup since it will always be the same each time. 
> Any ideas?



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