public SamlHandler(ClaimProvider issuer)
: base(issuer)
{
_signingKeyThumbprint = issuer.Parameters["signingKeyThumbprint"];
_issuer = issuer.Parameters["issuer"];
_identityProviderSSOURL = issuer.Parameters["identityProviderSSOURL"];
_audienceRestriction = issuer.Parameters["audienceRestriction"];
_requestedAuthnContextComparisonMethod = issuer.Parameters["requestedAuthnContextComparisonMethod"];
var authnContextClassRefs = issuer.Parameters["authnContextClassRefs"];
_authnContextClassRefs = !string.IsNullOrWhiteSpace(authnContextClassRefs)
? authnContextClassRefs.Split(',').ToList()
: new List<string>();
}