While the wiretap secret key capacity remains unknown for general source models even in the two-user case, we obtained a single-letter characterization for a large class of multi-user source models with a linear wiretapper who can observe any linear combinations of the source. We introduced the idea of irreducible sources to show existence of an optimal communication scheme that achieves perfect omniscience with minimum leakage of information to the wiretapper. This implies a duality between the problems of wiretap secret key agreement and secure omniscience, and such duality potentially holds for more general sources.

翻译：虽然即使在双用户案件中,一般源码模型的窃听秘密关键能力仍不为人所知,但我们获得了一大批多用户源码模型的单字母特征描述,该模型有线性线性窃听器,可以观察源码的任何线性组合;我们提出了不可减损来源的概念,以表明存在着一种最佳通信计划,即实现完美的全宇宙科学,将信息尽可能少地泄漏到窃听器上;这意味着窃听秘密关键协议和安全全天科学之间的双重问题,而这种双重性可能存在于更一般性的来源。