Authentication and identification for next generation communication systems

信息的认证可以说是现代电子通信系统中最重要的安全目标。在计算机终端上接收消息需要确保该消息来自所要求的发送者并且它没有被篡改。这一保证不存在于今天的大多数互联网通信中。对用户、设备和服务的身份识别以及消息身份验证的安全性不足，使身份盗窃和虚假网站等攻击成为主要的安全问题。身份验证系统为通信者提供关于通信中涉及的实体和交换的消息的保证。认证系统还必须应对技术进步和引入新服务所带来的挑战。社交网络和即时电话会议等应用程序需要在动态组中进行安全身份验证。多媒体数据是以非常大的数量产生的，并且多媒体认证系统有特殊的要求，例如容忍数据的微小变化。身份验证系统中一个日益令人担忧的问题是用户的隐私，以及确保用户的数据稍后不会被用来侵犯他们的隐私。

Authentication of information is arguably the most important security goal in modern electronic communication systems. Receiving a message on a computer terminal needs assurance that the message is coming from the claimed sender and it has not been tampered with. This assurance does not exist for most communications over the Internet today. Inadequate security for identification of users, devices and services, and authentication of messages has made attacks such as identity theft and fake websites, a major security concern. Authentication systems provide assurance for communicants about entities involved in the communication and the messages that are exchanged. Authentication systems must also meet the challenges resulting from the advancement of technologies and the introduction of new services. Applications such as social networking and instant tele-conferencing require secure authentication in dynamic groups. Multimedia data is produced at very large volumes and multimedia authentication systems have special requirements such as tolerance to small changes in data. A growing concern in authentication systems is users' privacy and the assurance that users' data cannot be later used to breach their privacy.