houstonperlmongers.org http://houstonperlmongers.org//posts/ebd20133-14d7-11ec-852a-ba68d2877b03?format=xml houstonperlmongers.org : /posts/ebd20133-14d7-11ec-852a-ba68d2877b03 en 2026-05-26T07:24:26 2026-05-26T07:24:26 houstonperlmongers.org /favicon.ico http://houstonperlmongers.org 32 32 houstonperlmongers.org favicon Homophonic Substitution Cipher: Cracking the Code of a Killer http://houstonperlmongers.org/posts/ebd20133-14d7-11ec-852a-ba68d2877b03 February 2017
Topic: Homophonic Substitution Cipher: Cracking the Code of a Killer
Presenter: Robert Stone
Robert Stone delves into the cipher used by the Zodiac Killer in his newspaper announcements. He describes substitution ciphers and then shows how a homophonic substitution cipher fixes many of its problems. He ends by describing how the Zodiac Killer's cipher was solved.
]]> Nobody http://houstonperlmongers.org/posts/ebd20133-14d7-11ec-852a-ba68d2877b03 2017-02-21T00:00:00 Homophonic Substitution Cipher: Cracking the Code of a Killer http://houstonperlmongers.org/posts/1487635200 February 2017
Topic: Homophonic Substitution Cipher: Cracking the Code of a Killer
Presenter: Robert Stone
Robert Stone delves into the cipher used by the Zodiac Killer in his newspaper announcements. He describes substitution ciphers and then shows how a homophonic substitution cipher fixes many of its problems. He ends by describing how the Zodiac Killer's cipher was solved.
]]> Nobody http://houstonperlmongers.org/posts/1487635200 2017-02-21T00:00:00