SupportingTokenSpecification ValidateTokensByParameters (SecurityTokenAuthenticator a, SecurityTokenResolver r, List<SupportingTokenInfo> tokens)
		{
			foreach (SupportingTokenInfo info in tokens)
				if (a.CanValidateToken (info.Token))
					return new SupportingTokenSpecification (
						info.Token,
						a.ValidateToken (info.Token),
						info.Mode);
			return null;
		}