The distinctive security features of the Spanish electronic national identity card, known as Documento Nacional de Identidad electrónico, allow us to propose the usage of this cryptographic smart card in an authentication framework that can be used during the registration and login phases of internet services where the validation of the user’s age and real identity are key elements, as it is the case for example of the so-called social networks. Using this mechanism with NFC-capable devices, the identity and age of the potential user can be determined, allowing or denying the access to the service based on that information.

中文翻译：

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在社交网络中使用西班牙国民身份证

西班牙电子国民身份证的独特安全功能，即西班牙身份证，可以让我们提出在身份验证框架中使用此加密智能卡的建议，该框架可以在互联网服务的注册和登录阶段使用，验证用户年龄和真实身份是关键要素，例如所谓的社交网络就是这种情况。通过将此功能与支持NFC的设备配合使用，可以确定潜在用户的身份和年龄，从而基于该信息允许或拒绝对该服务的访问。