摘要： 由于WCDMA的鉴权协议采用对称加密算法，不具备不可否认性，因此在实际应用中存在隐患。通过将广义XTR体制上的ElGamal加密协议进入WCDMA鉴权中，并修改鉴权协议，为系统增加了强不可否认性，有效地克服了隐患。该协议增强了WCDMA鉴权的安全性，具有较强的实用性。
关键词:
广义XTR,
WCDMA鉴权,
ElGamal加密
Abstract: The old WCDMA authentication protocol, because of the use of symmetric encryption, is not undeniable and hides some trouble while working. It developed a new authentication protocol from the old one by using EXTR-ElGamal cryptography and modified for the protocol itself. The new protocol is undeniable and the hidden troubles in old one is overcome, while the experimental results show the reality of new protocol. This protocol is more secure than the old one and can be used into reality.
Key words:
Extended XTR,
WCDMA authentication,
ElGamal cryptography
李 彬;郝克刚. EXTR的ElGamal协议对WCDMA鉴权的改进[J]. 计算机工程, 2007, 33(08): 57-59.
LI Bin; HAO Kegang. Improved WCDMA Authentication Protocol Based on EXTR-ElGamal Cryptography[J]. Computer Engineering, 2007, 33(08): 57-59.