Dallas-based Entrust, a provider of digital identification and authentication software, said this week that the firm has been selected by a Russian Internet firm. According to Entrust, Yandex.Money has selected the firm's products, including its IdentityGuard authentication platform. Financial impact of the deal was not disclosed. Entrust said that Yandex.Money will use its platform as part of its online payments systems in Russia. Entrust's software will be used for user authentication.