| 摘要: |
| 介绍了GSM向3G过渡时期GSM用户的认证与密钥协商过程，分析了GSM用户对3G系统的安全威胁，并对GSM用户接入3G系统提出了改进认证与加密算法。它可以有效防止攻击者假冒合法GSM用户滥用UTRAN网络资源，并可以保证用户的通信安全。 |
| 关键词: 3G演进 3G系统 GSM用户 UTRAN 密钥协商 通信安全 接入 认证 系统安全 |
| DOI：10.3969/j.issn.1001-893X. |
|
| 基金项目:国家自然科学基金资助项目(90204001) |
|
| Security Improvement for the Evolution of GSM to 3G |
|
| () |
| Abstract: |
| Authentication and key agreement for GSM subscribers is analysed during the evolution of GSM system to 3G system. The security threat of GSM subscribers to 3G system is analysed.An improved authentication and key agreement is proposed, which can protect against attacker impersonating legitimate GSM subscriber to misuse the source of Universal Terrestril Radio Access Network(UTRAN) effectively, and ensure subscribers' communication security. |
| Key words: Communication security,Universal Terrestril Radio Access Network (UTRAN),Authentication,Key agreement |
