摘要
通信和计算机等数字信息技术设备的电磁信息发射泄漏是近年来人们最关心的信息安全问题。对现有设备除采取屏蔽措施外,人们先后提出了噪声干扰、相关干扰、空间伴随加密等方法,有的已制成设备付诸使用。本文针对这些方法,特别是“相关”概念及其安全强度,进行了分析评述。并提出了VDU辐射信息的保护问题。
The electromagnetic emission leakage of computer and other di-
gital information technological equipments has in recent years become the
most concerned problem of information security. As to this problem, many me-
thods such as noise interference, correlation interference, spatially accompa-
nied encryption have been successively proposed in addition to the protective
sheld of the equipments. This paper has analized these methods, especially
the 'correlation' concept and its security strength, and put the stress of dis-
cussion on the protection of VDU emission information.
出处
《信息安全与通信保密》
1993年第4期15-20,共6页
Information Security and Communications Privacy
