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Timothy KeithTimothy Keith 

Error: Single Sign- On " Your login attempt using single sign-on with an identity provider certificate has failed. Please contact your salesforce.com administrator for more information."

We have been receiving a  Single Sign on Error in Salesforce. 


Error : "Your login attempt using single sign-on with an identity provider cretificate has faild. Please contact your salesforce.com administrator for information" 

When I ran the SAML validator. 
 
On the 11th line, I received the error below. 

11. Validating the Signature
  Is the response signed? false
  Is the assertion signed? true
  The reference in the assertion signature is valid
  Signature or certificate problems
  The signature in the assertion is not valid
  Is the correct certificate supplied in the keyinfo? false

Has anyone ever had this issue? Please help; I don’t know where to begin to troubleshoot. 

Best,
​Tim