Title

Elizebeth Smith Friedman and one example of a prohibition era encryption system

Authors

Stuart Boersma, Central Washington UniversityFollow

Document Type

Article

Department or Administrative Unit

Mathematics

Publication Date

1-12-2022

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.

Comments

This article was originally published in Cryptologia. The full-text article from the publisher can be found here.

Due to copyright restrictions, this article is not available for free download from ScholarWorks @ CWU.

Recommended Citation

Boersma, S. (2022). Elizebeth Smith Friedman and one example of a prohibition era encryption system. Cryptologia, ahead of print. https://doi.org/10.1080/01611194.2021.2003913

Journal

Cryptologia