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SSO Not Working - Unable to validate Signature (Doc ID 2836337.1)

Last updated on JANUARY 31, 2022

Applies to:

Identity Cloud Service (IDCS) - Version N/A and later
Information in this document applies to any platform.


Applications are configured for SSO through Identity Cloud Services with ADFS and cloud gate, but are not working with the below error:


1 www/_include.php:17 (SimpleSAML_exception_handler)
0 [builtin] (N/A)
Caused by: Exception: Unable to validate Signature
7 vendor/simplesamlphp/saml2/src/SAML2/Utils.php:195 (SAML2\Utils::validateSignature)
6 vendor/simplesamlphp/saml2/src/SAML2/Assertion.php:674 (SAML2\Assertion::validate)
5 modules/saml/lib/Message.php:230 (SimpleSAML\Module\saml\Message::checkSign)
4 modules/saml/lib/Message.php:694 (SimpleSAML\Module\saml\Message::processAssertion)
3 modules/saml/lib/Message.php:659 (SimpleSAML\Module\saml\Message::processResponse)
2 modules/saml/www/sp/saml2-acs.php:145 (require)
1 lib/SimpleSAML/Module.php:266 (SimpleSAML\Module::process)
0 www/module.php:10 (N/A)
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The SSO is working fine before sometime.


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