3451782 - SAML authentication failed with corporate IdP involved, error "SAML2Assertion is not signed but it is required to be signed" occurred in IAS troubleshooting log

In the corporate IdP involved scenario, SAML authentication failed.
IAS issued error in the SAML response to SP
<StatusMessage>Failed to authenticate user.</StatusMessage>
In IAS troubleshooting log, following error occurred.
- SAML2Assertion is not signed but it is required to be signed. SAML2Assertion is not signed but it is required to be signed
- Authentication error. The authentication process did not set an authenticated principal in the current thread

Identity Authentication

Identity Authentication 1.0

IAS, IPS, SAML, corporate IdP, authentication, digital signed. , KBA , BC-IAM-IDS , Identity Authentication Service , Problem

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