A recently proposed group key distribution scheme known as UMKESS, based on secret sharing, is shown to be insecure. Not only is it insecure, but it does not always work, and the rationale for its design is unsound. UMKESS is the latest in a long line of flawed group key distribution schemes based on secret sharing techniques.

中文翻译：

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使用秘密共享的另一种不安全的组密钥分发方案

基于秘密共享，最近提出的称为UMKESS的组密钥分发方案显示为不安全的。它不仅不安全，而且并不总是有效，并且其设计原理不合理。UMKESS是一系列基于秘密共享技术的有缺陷的组密钥分发方案中的最新方案。