BEGIN:VCALENDAR VERSION:2.0 PRODID:Data::ICal 0.24 BEGIN:VEVENT DESCRIPTION: 'Title: CON trolling the weather\n When: Friday\, Aug 11\, 15:00 - 15:45 PDT\n Where: Harrah's - Nevada Ballroom - Lake Tahoe & Re no - War Stories -\n On the Record - [1]Map\n\n SpeakerBio:Paz Hameiri \, Hacker\n Paz started his professional life more than 30 years ago\, hacking\n games and developing tools in his teen years. Since then\, he has\n worked in several companies\, developing both hardware and softwar e.\n Paz has six years of experience with telecommunication systems desi gn\n and circuits.\n\n For 14 years\, Paz led multidisciplinary system s development as a\n systems engineer in the aerospace industry. At home \, Paz explores\n ideas he finds interesting.\n\n In 2019 he published a work on a body-tracking device that records\n keystrokes on a safe's keypad in Hakin9 Magazine. In 2021 he developed\n software that used a G PU as a digital radio transmitter and presented\n his work at DEF CON 29 . In 2015 and 2019 he launched weather balloons\n with elementary school pupils.\n\n\n Description:\n Nearly 1\,800 weather balloons are launc hed across the world on any\n given day. As the balloon goes up it expan ds and pops at an altitude\n up to 33 Km (110K feet) above the earth.The flight payload is called a\n radiosonde. It measures pressure\, tempera ture\, relative humidity\,\n position\, and velocity during its flight\, and transmits the data to a\n sounding receiver. One or two missing wea ther balloons won't impact\n the daily forecast. However\, many missing balloons could lead to\n errors in weather models and forecasts. Weather balloons are also\n important for gathering weather data for satellite launches and human\n spaceflights\, as launches are often delayed or scr ubbed due to\n upper-level wind shear.\n\n In this talk\, I present a simulation framework for the most popular\n radiosonde model. It enables an attacker to generate radiosonde\n messages or alter logged messages for retransmission. I also present\n simulations of a jamming attack and a spoofing attack on a sounding\n receiver:\n\n During a jamming atta ck\, the receiver is unable to receive\n transmissions from active radio sondes.\n\n During a spoofing attack\, the transmitter sends fake radios onde\n messages to a target receiver\, identifying as an active radioson de.\n\n I'll talk about the shortcomings of the military variant of the\ n radiosonde model and suggest a simple way to cope with spoofing\n at tacks.\n\n REFERENCES\n Vredenbregt L.\, "How many weather ballo ons are out there?\n Hundreds\, it turns out"\, [2]https://abcnews .go.com/Politics/weather-balloons-hundreds-turns/story?id=97082985\,\n Feb 13\, 2023. Dudley I.\, "Weather balloons and rocket science"\,\n [3]https://www.vandenberg.spaceforce.mil/News/Features/Display/Art icle/737270/weather-balloons-and-rocket-science/\n bazjo\, "RS41 D ecoding"\, [4]https://github.com/bazjo/RS41_Decoding\n rs1729\, "R S"\, [5]https://github.com/rs1729/RS projecthorus\,\n "radiosonde_ auto_rx"\, [6]https://github.com/projecthorus/radiosonde_auto_rx\n sondehub\, [7]https://github.com/projecthorus/radiosonde_auto_rx\n "Upper-air Observations Program"\, [8]https://www.weather.gov/upperair/\ n Mass C.\, "Wind Shear: When the Atmospheric Seems to be Tearing\ n Itself Apart"\, [9]https://cliffmass.blogspot.com/2017/05/wind-s hear-when-atmospheric-seems-to-be.html\n Jessop M.\, "Top Radioson de types"\, [10]https://twitter.com/vk5qi/status/1170215238978830339\n Lada B.\, "3 weather obstacles that SpaceX faces when launching\n rockets into space"\, [11]https://www.accuweather.com/en/space-news/t ypes-of-weather-that-can-delay-a-spacex-rocket-launch/352407\n Nas a\, "Falcon 9 Crew Dragon Launch Weather Criteria"\,\n FS-2020-05- 568-KSC\, [12]www.nasa.gov Frielingsdorf J.\, "An\n Open-Source Do cumentation and Implementation of the Vaisala RS41\n Data Preparat ion Algorithms"\, WMO Technical Conference on\n Meteorological and Environmental Instruments and Methods of\n Observation\, Oct. 11\ , 2022 Cadence PCB Solutions\, "What is\n Signal to Noise Ratio an d How to calculate it?"\, [13]https://resources.pcb.cadence.com/blog/2020- what-is-signal-to-noise-ratio-and-how-to-calculate-it\n Vaisala\, "Vaisala Radiosonde RS41-SGP Data Sheet"\, [14]www.vaisala.com\,\n B211444EN-E\, 2017 Vaisala\, "Vaisala Radiosonde RS41-SG Data\n S heet"\, [15]www.vaisala.com\, B211321EN-K\, 2020 Vaisala\, "Vaisala\n Radiosonde RS41-SGM Data Sheet"\, [16]www.vaisala.com\,\n B211 448EN-E\, 2017\n\n '\n\n 1. #Harrahs\n 2. https://abcnews.go.com/Pol itics/weather-balloons-hundreds-turns/story?id=97082985\,\n 3. https://w ww.vandenberg.spaceforce.mil/News/Features/Display/Article/737270/weather- balloons-and-rocket-science/\n 4. https://github.com/bazjo/RS41_Decoding \n 5. https://github.com/rs1729/RS\n 6. https://github.com/projecthoru s/radiosonde_auto_rx\n 7. https://github.com/projecthorus/radiosonde_aut o_rx\n 8. https://www.weather.gov/upperair/\n 9. https://cliffmass.blo gspot.com/2017/05/wind-shear-when-atmospheric-seems-to-be.html\n 10. htt ps://twitter.com/vk5qi/status/1170215238978830339\n 11. https://www.accu weather.com/en/space-news/types-of-weather-that-can-delay-a-spacex-rocket- launch/352407\n 12. http://www.nasa.gov/\n 13. https://resources.pcb.c adence.com/blog/2020-what-is-signal-to-noise-ratio-and-how-to-calculate-it \n 14. http://www.vaisala.com/\n 15. http://www.vaisala.com/\n 16. h ttp://www.vaisala.com/\n\n\n DTEND:20230811T224500Z DTSTART:20230811T220000Z LOCATION:DC - Harrah's - Nevada Ballroom - Lake Tahoe & Reno - War Stories - On the Record SUMMARY:CON trolling the weather END:VEVENT END:VCALENDAR