{"id":6019,"date":"2013-03-23T11:15:00","date_gmt":"2013-03-23T15:15:00","guid":{"rendered":"http:\/\/swling.com\/blog\/?p=6019"},"modified":"2023-01-16T06:40:12","modified_gmt":"2023-01-16T10:40:12","slug":"rijmenants-paper-sheds-light-on-cuban-numbers-stations","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2013\/03\/rijmenants-paper-sheds-light-on-cuban-numbers-stations\/","title":{"rendered":"Rijmenants’ paper sheds light on Cuban numbers stations"},"content":{"rendered":"

\"WFL_015\"<\/a>I’m always amazed by the remarkable talents and extraordinary knowledge of SWLing Post readers. Dirk Rijmenants\u00a0recently commented on one of our Cuban spy numbers station<\/a> postings:<\/p>\n

[T]hanks for your work on this fascinating blog.<\/p>\n

I have additional information on how and who used these Cuban numbers stations. I composed a paper based on FBI and court documents. “Cuban Agent Communications” can by found in the Papers section of my website.<\/p>\n

Here’s the direct link (pdf):
\nhttps:\/\/www.ciphermachinesandcryptology.com\/papers\/cuban_agent_communications.pdf<\/a><\/p>\n

Have fun reading!<\/p>\n

Dirk Rijmenants
\nCipher Machines & Cryptology
\n<\/a><\/p><\/blockquote>\n

I’ve read Dirk’s paper, which does, indeed, shed light on the process of receiving and decoding numbers. Most of all, it exposes the vulnerability and fallacy of using anything other than one-time decryption keys and single-use pads. Why? Most of what the FBI has learned about Cuban numbers came from laptops that were used to help decrypt coded messages–an\u00a0unnecessary\u00a0procedure\u00a0when numbers can simply be decoded on note pads that can then be burnt or destroyed.<\/p>\n

But don’t take my word for it–download and read Dirk’s paper\u00a0“<\/span>Cuban Agent Communications” by clicking here<\/a>. Also, be sure to check out Dirk’s blog<\/a> and cryptology website<\/a>;\u00a0I’ve bookmarked both.<\/p>\n

Thanks for sharing your findings, Dirk!<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

I’m always amazed by the remarkable talents and extraordinary knowledge of SWLing Post readers. Dirk Rijmenants\u00a0recently commented on one of our Cuban spy numbers station postings: [T]hanks for your work on this fascinating blog. I have additional information on how and who used these Cuban numbers stations. I composed a paper based on FBI and […]<\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[8,172,43,1167],"tags":[1801,1800,1699,271,1798,1799,1678,1607],"class_list":["post-6019","post","type-post","status-publish","format-standard","hentry","category-articles","category-numbers-stations","category-shortwave-radio","category-whats-on-shortwave","tag-cryptology","tag-cuba","tag-cuban-numbers-stations","tag-cuban-spies","tag-decoding-numbers-stations","tag-dirk-rijmenants","tag-hm01","tag-spy-numbers-stations"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-1z5","jetpack-related-posts":[{"id":6342,"url":"https:\/\/swling.com\/blog\/2013\/04\/numbers-station-hm01-and-ana-montes\/","url_meta":{"origin":6019,"position":0},"title":"Numbers station HM01…and Ana Montes","author":"Thomas","date":"April 26, 2013","format":false,"excerpt":"Wednesday morning, I suppose I had number stations on the brain.\u00a0 It was no surprise, as I had just watched The Numbers Station the previous night.\u00a0 Nonetheless, I experienced a rather strange coincidence:\u00a0 I was reading an intriguing article about Ana Montes,\u00a0\u201cone of the most damaging spies in U.S. history,\u201d\u2026","rel":"","context":"In "Articles"","block_context":{"text":"Articles","link":"https:\/\/swling.com\/blog\/category\/articles\/"},"img":{"alt_text":"Downloads-001","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2013\/04\/Downloads-001-300x175.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":8844,"url":"https:\/\/swling.com\/blog\/2014\/02\/miami-herald-cuban-spies-and-shortwave-numbers\/","url_meta":{"origin":6019,"position":1},"title":"Miami Herald: Cuban spies and shortwave numbers","author":"Thomas","date":"February 26, 2014","format":false,"excerpt":"I should note that we have several\u00a0recordings and frequencies for the numbers station HM01, which is mentioned in this article. Very happy to see that they interviewed Chris Smolinski: (Source: Miami Herald) Even if you\u2019re not a Cuban spy, you too can receive secret messages sent by Havana to its\u2026","rel":"","context":"In "News"","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"towers","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2009\/11\/grimetonbandw-225x300.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":5627,"url":"https:\/\/swling.com\/blog\/2013\/03\/even-numbers-stations-make-mistakes\/","url_meta":{"origin":6019,"position":2},"title":"Even numbers stations make mistakes","author":"Thomas","date":"March 1, 2013","format":false,"excerpt":"On February 5th, 2013, the Cuban numbers station widely known as HM01 struggled to maintain its composure following an awkward studio error. In this particular case, I started recording a few seconds prior to the carrier, at which point you'll hear a couple of minutes of \"dead air\" (silence). The\u2026","rel":"","context":"In "Broadcasters"","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"WFL_015","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2013\/02\/CubanFlag-300x202.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":10767,"url":"https:\/\/swling.com\/blog\/2014\/09\/numbers-stations-a-bad-day-to-be-a-cuban-spy\/","url_meta":{"origin":6019,"position":3},"title":"Numbers Stations: A bad day to be a Cuban spy","author":"Thomas","date":"September 13, 2014","format":false,"excerpt":"While band scanning last Sunday\u00a0(September 8, 2014) I stumbled upon the Cuban numbers station HM01 on 11,530 kHz at 17:30 UTC. It's always intriguing to hear shortwave numbers stations, but I prefer those that stick to pure vocal number strings; HM01 has numbers with digital bursts between number sets, which\u2026","rel":"","context":"In "News"","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"SWLingPost-Spy-Numbers-Station","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/09\/SWLingPost-Spy-Numbers-Station.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/09\/SWLingPost-Spy-Numbers-Station.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/09\/SWLingPost-Spy-Numbers-Station.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":5575,"url":"https:\/\/swling.com\/blog\/2013\/02\/shortwave-radio-recordings-listen-to-cuban-spy-numbers-station-hm01\/","url_meta":{"origin":6019,"position":4},"title":"Shortwave Radio Recordings: Listen to Cuban Spy Numbers Station HM01","author":"Thomas","date":"February 14, 2013","format":false,"excerpt":"Numbers stations have always been a dark oddity that pop up from time-to-time in the course of shortwave radio listening. There is unquestionably an air of mystery and intrigue which surrounds them.\u00a0With the release of the movie The Numbers Station, many non-SWLers may be enticed to explore the HF bands.\u2026","rel":"","context":"In "Broadcasters"","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"WFL_015","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2013\/02\/CubanFlag-300x202.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":7413,"url":"https:\/\/swling.com\/blog\/2013\/09\/cuban-numbers-station-hm01-serving-up-a-little-confusion\/","url_meta":{"origin":6019,"position":5},"title":"Cuban Numbers Station HM01: serving up a little confusion","author":"Thomas","date":"September 27, 2013","format":false,"excerpt":"On occasion, I hear the Cuban numbers station HM01 on 5,855 kHz on weekday mornings. It seems that many of the mornings as I listen, I hear HM01 making mistakes or at least experiencing \"technical difficulties\" (click here for a recent case in point). Though I don't often record HM01,\u2026","rel":"","context":"In "Broadcasters"","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"WFL_015","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2013\/02\/CubanFlag-300x202.jpg?resize=350%2C200","width":350,"height":200},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/6019","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/comments?post=6019"}],"version-history":[{"count":2,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/6019\/revisions"}],"predecessor-version":[{"id":55383,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/6019\/revisions\/55383"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=6019"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=6019"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=6019"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}