Enabling SHA1 in SP

SAML for ASP.NET
1

I have a SP accepting requests from client IdPs. Where in my saml.config can I enable SHA1?
Management says I need to test this for backward compatibility.

2

By default SHA1 support is disabled. It can be enabled in the <PartnerIdentityProvider> configuration by setting EnableSha1Support to true.

For example:

<PartnerIdentityProvider 
    Name="https://ExampleIdentityProvider"
    EnableSha1Support="true"
    Description="Example Identity Provider"
    SingleSignOnServiceUrl="https://localhost:44390/SAML/SSOService.aspx"
    SingleLogoutServiceUrl="https://localhost:44390/SAML/SLOService.aspx">
    <PartnerCertificates>
        <Certificate FileName="Certificates\idp.cer"/>
    </PartnerCertificates>
</PartnerIdentityProvider>
3

Thank you.