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Assertion signature validation failed. x

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Problem

I am using JIRA or Confluence. In the SAML Single Sign process i will be redirected to the Identity Provider and successful authenticated. If I am returned from the Identitiy provider to JIRA/Confluence I get the error message:

Processing saml failed: com.resolution.samlprocessor.SAMLProcessorException: Assertion signature validation failed

Solution

  1. The most occurring reason for this error is because the wrong token signing certificate is used. Please check if the right certificate from your identitiy provider is included in the "IdP Token Signing Certificate" field from your plugin configuration.

  2. It could be that your JIRA/Confluence system is use a wrong encoding e.g. "ANSI_X3.4-1968". With the wrong system encoding the certificate cant be decoded properly. As solution you can change your encoding back to the standard value "UTF-8" with follwing steps:
  •  On the <jira/confluence-install>/bin (or <tomcat-home>/bin for JIRA/Confluence WAR installations) directory, open the setenv.sh(Linux)/setenv.bat(Windows) file.
  •  Add the line: JVM_SUPPORT_RECOMMENDED_ARGS="-Dfile.encoding=utf-8" and save it.
  •  Restart JIRA/Confluence.

 

 

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