SAML SP Configuration Issue

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Hi, I am trying to implement SAML in my app, but I am not able to save my SP Configuration. I get a system error. When I turn off the encryption it works, but I need the encryption. I think there goes something wrong with the keystore, but I do not know exactly what and how to fix it. My error log gives this information: ERROR - Client: An error occurred while executing an action of SAML20.SAMLConfiguration_Overview.actionButton1: Unexpected end of JSON input Error: An error occurred while executing an action of SAML20.SAMLConfiguration_Overview.actionButton1: Unexpected end of JSON input I tried restarting the app, but that is not even possible. I had to disconnect the startup microflow to be able to restart. I tried throwing out the userlib and downloading all the appstore modules again, also does not help.  I am not sure or this might have had an effect, but before trying to implement SAML I upgraded from 7.23.7 to 8.10.3 Someone an idea what is going wrong here?
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3 answers
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A wild guess from my side: maybe you need to change the encryptionprefix constant to {AES2}.

 

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I do remember once that I had this with the URL metadata of a client. Downloading and uploading the metadata solved it. I never found the reason why it did not accept the URL metadata.

Regards,

Ronald

 

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Thank you both for trying to help me. Unfortunately both solutions do not work (encryption module is already set to {AES} and download metadata button gives the same error as the save button). I  have send the question to mendix support. 

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