Detecting Threats of Acoustic Information Leakage Through Fiber Optic Communications

• 作者: Vladimir V. Grishachev
• 来源期刊: 信息安全(英文)
• 学科: 医学
• 关键词: Fiber OPTIC COMMUNICATIONS ACOUSTIC (Speech) INFORMATION LEAKAGE Channel Protection of ACOUSTIC (Speech) INFORMATION
• 年，卷（期）: 2012,（2）
• 页码范围: 149-155
• 页数: 7页
• 分类号: R73

摘要

Information leaks through regular fiber optic communications is possible in the form of eavesdropping on conversations, using standard fiber optic communications as illegal measuring network. The threat of leakage of audio information can create any kind of irregular light emission, as well as regular light beams modulated at acoustic frequencies. For information protection can be used a means of sound insulation, filtration and noising. This paper discusses the technical possibilities of countering threats by monitoring the optical radiation to detect eavesdropping.