【摘要】 第一代蜂窝移动通信系统几乎没有采用任何安全机制来保护运营商和用户。第二代移动通信系统从总体上讲有了很大的改进,引进了实体认证和机密性保护措施,但其中的安全问题仍然有许多亟待改进的地方。随着第三代移动通信系统(3G)的出现,需构建一个能够解决3G将要面临的各种安全威胁的和谐同一的安全结构体系。更多还原

【Abstract】 The first Generation of cellular mobile communication systems contained few if any security measures to protect the system operator and users. The second generation did a lot better, and contained entity authentication and confidentiality protection. Although this was a major improvement, security protection in the second generation left a lot to be desired. With the advent of 3G mobile systems a serious effort has been made to create a consistent security architecture based on the threats and risks a 3G system faces.更多还原