[Idpy-discuss] Help: saml2.sigver.SignatureError: Failed to verify signature

Hi, I am attempting to set up a SAML environment to better understand how Satosa works. Here is the model of my environment: SAML Service Provider (SP, pysaml2) <-> Satosa Proxy <-> SAML Identity Provider (IdP, pysaml2). During the single sign-on service, after entering the username and password, when the SAML IdP posts the AssertionConsumerService to the Satosa Proxy, an error(satosa log attached) occurs: 'saml2.sigver.SignatureError.', the following is my satosa proxy logs: https://pastebin.com/YsRMVzKD I am unsure about how to resolve this issue. Could anyone provide me with some guidance? Any help would be greatly appreciated. Thanks, Sam