Facing issue while Sending encrypted SAML authentication assertions

I am using auth0 as identity provider.
I need to send encrypted SAML authentication assertions to my application but I am getting below error-
invalid_request : Could not convert public key from PEM; PEM header type is not “PUBLIC KEY” or “RSA PUBLIC KEY”.

I have added pb7 and cer certificates in my application and added below rule in auth0 rules-
if (context.clientID === ‘myclientid’) {
context.samlConfiguration = (context.samlConfiguration || {});
context.samlConfiguration.encryptionPublicKey = “-----BEGIN PKCS7-----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\nQK3Vd8WrJgkNbkmpw3IxAA==\n-----END PKCS7-----\n”;
context.samlConfiguration.encryptionCert = “-----BEGIN CERTIFICATE-----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\nj7tlQK3Vd8WrJgkNbkmpw3I=\n-----END CERTIFICATE-----\n”;

Please help.