Abstract

A short ciphertext message encrypted using a Prohibition era encryption system is examined. First published in David Kahn’s The Codebreakers, this example appears in two early reports written by Elizebeth Smith Friedman. Some obvious and some not so obvious errors are identified and corrected when possible. Friedman’s cryptanalysis of the ciphertext is given.

中文翻译：

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Elizebeth Smith Friedman 和禁酒时代加密系统的一个例子

摘要

检查使用禁酒时代加密系统加密的短密文消息。此示例首次发表在 David Kahn 的The Codebreakers中，出现在 Elizebeth Smith Friedman 撰写的两份早期报告中。一些明显的错误和一些不那么明显的错误会在可能的情况下被识别和纠正。给出了弗里德曼对密文的密码分析。