{"id":53513,"date":"2022-07-21T19:22:17","date_gmt":"2022-07-21T23:22:17","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=53513"},"modified":"2022-07-21T19:22:17","modified_gmt":"2022-07-21T23:22:17","slug":"decode-the-enigma-crypto-transmission-from-kph-on-saturday-july-23-2022","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2022\/07\/decode-the-enigma-crypto-transmission-from-kph-on-saturday-july-23-2022\/","title":{"rendered":"Decode the Enigma: Crypto Transmission from KPH on Saturday, July 23, 2022"},"content":{"rendered":"

\"\"<\/a><\/p>\n

The Maritime Radio Historical Society is hosting a brilliant on-the-air event via KPH. I’ve pasted full details below, copies directly from the Maritime Radio Historical Society announcement<\/a>:<\/strong><\/p>\n

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ATTENTION ALL AGENTS!<\/a><\/h1>\n

Crypto Transmission from KPH!<\/h1>\n

Background<\/h3>\n

The MHRS in cooperation with our good friends at the Cipher History Museum<\/p>\n

will send a coded message in 5-letter groups via the facilities of coast stations KPH on Saturday July 23, 2022. The message will be encrypted using the famous Enigma code machine.<\/p>\n

All KPH listeners are invited to try their hand at receiving and decrypting the message. Certificates will be awarded for proof of successful decode, first to decode and use of original hardware.<\/p>\n

Mislaid your Enigma code machine? In the military you’d have some explaining to do, soldier. But for the KPH Crypto Event, no problem. See the \u2018Enigma Simulator\u2019 section below for a link to an easy-to-use Enigma simulator.<\/p>\n

Enigma<\/h3>\n

The Enigma was the Germans’ most sophisticated coding machine for securely transmitting command and control messages via radio communications in WWII. It was considered so secure that it was used to encipher the most top-secret of messages.<\/p>\n

The arrangement of Enigma’s rotors and plugboard connections provided a unique series of letter substitutions which changed with each keystroke. The daily rotor order and the ring and plugboard settings to be used were specified in a codebook distributed monthly to all users of a network.<\/p>\n

For additional information on the Enigma please see Ralph Simpsons’ Cipher Museum History site<\/p>\n

Crypto broadcast date, time and formats.<\/h3>\n

The crypto broadcast will commence at 2000Z (1300 Pacific) on 23 July on all KPH CW frequencies. The broadcast will consist of a ‘callup’ (in plain text) announcing the broadcast, followed by the cipher message. The callup and cipher messages will be sent at 15 WPM. The cipher message will be sent in 5 letter groups and the message will be sent twice to ensure proper reception.<\/p>\n

The usual KPH channel marker or ‘wheel’ running at 20 WPM will precede the announcement for the crypto broadcast to give listeners a chance to tune to the strongest signal in their area.<\/p>\n

The KPH CW frequencies are (in kc):<\/p>\n