I have EE and I am trying to integrate the SAML plugin following your instructions located here:

http://www.liferay.com/web/mika.koivisto/blog/-/blogs/12725251

But I can not get it to work and keep gettting a jks issue:
ERROR [pool-2-thread-1][KeyStoreManagerImpl:122] Unable to load keystore
java.io.IOException: Keystore was tampered with, or password was incorrect

I have went through double and tripled checked all paths, ID's and passwords and everything is working so I am not sure why I can not get the provider to work correctly.

Have you tried with keytool that your keystore with the password you chose is functional? Does your keystore contain the key with then entity id of your IdP or SP if you are setting it up as SP?

I figured it out. Its very finicky in how you actually deploy the WAR file. If the application is running and you drop it in the deploy folder it doesn't work even if all the items are in the config file. Even after reboot it doesn't seem happy. The only way I got it to work was placing it in the deploy folder prior to startup of the application. Then it works.

Yeah the current version requires it to be pre configured before deployment. We are adding in configuration UI in the next version so you can just deploy it and configure later.