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  • iNETZO 93 posts 412 karma points
    Oct 22, 2019 @ 19:14

    IDX10503: Signature validation failed using UmbracoIdentity on Windows 2016 server


    We created a member driven site by using UmbracoIdentity in Umbraco 8 to authenticate members against a ADFS server. This works fine on a local development enviorment but we now would like to use it on a Windows 2016 production server.

    When opening the site, the ADFS server authenticates properly but when in comes back to our webserver the error: IDX10503: Signature validation failed. Keys tried: '[PII is hidden]' occures. Where using Sectigo Positive SSL certificates on this site with 4096 bits encryption.

    I Googled a lot to find a solution but i don't see how i can fix this problem. Is there someone who had the same problem/error using UmbracoIdentity?

    Best regards,


  • iNETZO 93 posts 412 karma points
    Oct 23, 2019 @ 07:48

    It turned out that on the ADFS server for the domain were set to SHA1 instead of SHA256. If someone encounters the same problem, this may be a cause.

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