Diagnosis
The signature check in the SAML message &V1& was not successful. Thereason can be one of the following:
The public key ( certificate ) of entity &V2& is missing from the PSEfile.
The key ( certificate ) of the issuer &V2& is flawed.

System Response
The signature check was unsucessful and the SAML message could not beprocessed.

Procedure
Check the entries in the developer trace of the application server.Check the entries for keys in the SAML2 PSE. In transaction STRUST,compare the certificates of the corresponding PSE with those that yourSAML2 partner provided.

Procedure for System Administration
Check the existence of the partner certificates and their correctness.Errors occur, for example, when the certificate has expired, or the whenthe certificate requires a chain of certificates to check the signature.