<PackageReference Include="Microsoft.IdentityModel.Tokens" Version="8.19.0" />

Microsoft.IdentityModel.Tokens.Experimental.IssuerValidationSource

public class IssuerValidationSource
Represents the source from which the token issuer was validated. i.e. whether the issuer was matched with the configuration provided or the validation parameters provided. If a custom issuer validation delegate is used, a custom validation source can be instantiated and used.
namespace Microsoft.IdentityModel.Tokens.Experimental { public class IssuerValidationSource { public static readonly IssuerValidationSource NotValidated; public static readonly IssuerValidationSource IssuerMatchedConfiguration; public static readonly IssuerValidationSource IssuerMatchedValidationParameters; public string Name { get; } public IssuerValidationSource(string name); } }