US spy drone tricked into Iran landing

[doodab]

GPS jammer is fairly easy technology, however changing it completely to fool complex aircraft to land nicely is hard - getting it crash into something might be far more likely.

If they achieved this non-trivial feat they'd certainly film the landing and show in on youtube.

I think it's far more likely that the thing crashed on it's own, Iranians found the pieces and created mock up thing using Wikipedia images.

Actually the conclusion from Los Alamos is that it's not that hard to spoof GPS at all

The Vulnerability Assessment Team at Los Alamos National Laboratory has demonstrated the ease with which civilian GPS spoofing attacks can be implemented. This spoofing is most easily accomplished by using a GPS satellite simulator. Such simulators are uncontrolled and widely available.

GPS Spoofing Countermeasures

How easy spoofing navigation messages on top of P(Y) code is hard to say, it depends on whether they are applied to the P code before encryption (I would hope so), but if they weren't then I think that it's enough to be able to recover a version of the encrypted P(Y) code unmodulated with navigation messages which would probably be possible with access to a captured receiver or might even be possible without one if the navigation messages are the same as the civilian ones. You would need to crunch through quite a bit of data but I think it's doable.

Of course it's also possible that you could just jam the P(Y) code and cause the receiver to fall back to the civilian code which is easy to spoof.

[Jeff Maginty]

..

[doodab]

Actually the conclusion from Los Alamos is that it's not that hard to spoof GPS at all



GPS Spoofing Countermeasures

How easy spoofing navigation messages on top of P(Y) code is hard to say, it depends on whether they are applied to the P code before encryption (I would hope so), but if they weren't then I think that it's enough to be able to recover a version of the encrypted P(Y) code unmodulated with navigation messages which would probably be possible with access to a captured receiver or might even be possible without one if the navigation messages are the same as the civilian ones. You would need to crunch through quite a bit of data but I think it's doable.

Of course it's also possible that you could just jam the P(Y) code and cause the receiver to fall back to the civilian code which is easy to spoof.

Actually you don't even need to spoof it, a simple replay of already received P(Y) transmissions with the correct time offsets applied to each signal could fool the drone into thinking it was somewhere else.

[OwlHoot]

Actually you don't even need to spoof it, a simple replay of already received P(Y) transmissions with the correct time offsets applied to each signal could fool the drone into thinking it was somewhere else.

The ability to detect and avoid that would be another advantage of having a miniature atomic clock (if such a thing exists yet) linked to the GPS unit

(the first advantage being, as I mentioned above, the capability to avoid having to rely on the civilian C/A code to get a preliminary fix on the P(Y) code - That's always been a chink in the armour of military GPS)

[Paddy]

Rember this?


GPS road pricing would deliver benefits...

It would open up the market for jammers.

GPS road pricing is a clear route to driver satisfaction - Public Service

[doodab]

The ability to detect and avoid that would be another advantage of having a miniature atomic clock (if such a thing exists yet) linked to the GPS unit

You would be varying the delta-T of the satellite signals, having a more accurate idea of time on board the drone wouldn't make any difference to the subsequent pseudorange calculations, assuming you could get away with simply delaying some transmissions it would just appear that the satellites were further away.

[Incognito]

Thought someone would come back with that one. Go and Google again; you may just get the right information.

Okay Paddy I did. How about a round up of how the Farsi press reported it?

Dariush Rezaei was killed in Tehran, in an attack that also injured his wife. There are contradictory reports on the exact nature of his expertise and the work in which he was involved.

IRNA, Iran's official news agency, reports that he was a Ph.D. candidate in electronics and a distinguished scientist who was working with several research centers around the country. IRNA gave his last name as Rezaei-Nejad.

On the other hand, the website of Mohaghegh Ardabili University, lists a Dr. Dariush Rezaei Ochbelagh as an assistant professor. Rezaei Ochbelagh evidently received his Ph.D. in nuclear physics in 2007 from the Ferdowsi University of Mashhad and his M.S. degree in 1996 in nuclear engineering with a specialty in nuclear reactors from Amir Kabir University of Technology (Tehran Polytechnic). Kaleme, the website that reflects the views of Mir Hossein Mousavi, states it is this scientist who was killed.

The hardline website Asr-e Iran reports ... A neighbor said that in Rezaei's car there was an insurance card indicating that he had medical insurance with the armed forces.

Fars, the news agency run by the Islamic Revolutionary Guard Corps, quotes Majid Ghasemi, the chancellor of Khajeh Nasir Toosi University in Tehran, as saying that Rezaei-Nejad was a M.S. student of electrical engineering at the university with specialty in power engineering. Ghasemi said that he knows nothing about Rezaei's involvement in Iran's nuclear program. In another dispatch, Fars asserts that identifying the murdered scientist as a nuclear researcher is incorrect.

Mashregh News, the hardline website linked with security forces, reports that Dariush Rezaei-Nejad was a professor of electronics at Khajeh Nasir Toosi in Tehran, but had no links with Iran's nuclear program. Mashregh News also quotes other hardline websites that deny Rezaei was even a researcher, but merely a graduate student that was working toward his degree in a joint program between his university and the University of Hanover in Germany.

Mehr, the news agency run by the Organization for Islamic Propaganda, describes Rezaei only as a "scientist of our nation."

Ayandeh News, the website that is close to Akbar Hashemi Rafsanjani, reports that Dariush Rezaei Nejad was a Ph.D. student at Malek-e Ashtar University, which is run by the Revolutionary Guards and the Ministry of Defense, and was doing his thesis on nuclear-related problems. It points to an abstract online of a research article authored by Dariush Rezaei-Nejad that appears to concern nuclear-related issues.

Safar-Ali Baratlou, deputy governor-general for political affairs of Tehran province, governor-general told ILNA, the Iran Labor News Agency, that the question of whether the murdered person was involved in Iran's nuclear program is still under investigation, and is not yet clear.

ISNA, the Iranian Students' News Agency, reports that Rezaei was a "university professor in Tehran," but that no university or research center "has so far confirmed that Rezaei was working with them."

After the killing of Dr. Majid Shahriari, a prominent academic and expert on nuclear physics, and the failed attempt on the life of Dr. Fereydoon Abbasi, who is now the head of the Atomic Energy Organization of Iran, the latest assassination may represent one more in a chain of murders, presumably committed by foreign agents.

According to Alef, the website published by Majles deputy Ahmad Tavakoli, a nuclear scientist whom it identified as "Dr. Boronzi, a researcher with the Rouyan Institute" was assassinated in the same location where Rezaei was reported murdered.

Iranian Scientist Assassinated in Tehran; Nature of His Work Unclear - Tehran Bureau | FRONTLINE | PBS

Hmm, plenty of mentions of electronics and nuclear physics, nothing about geospatial though. Even you're saying he has a PhD (note the correct abbreviation) so that must rule out the misinformation about him still only being a student. Looks convincingly like you're speaking out of your arse (again).

[Incognito]

Or how about the German press?

BERLIN: The Israeli secret service Mossad was responsible for the assassination last month of an Iranian scientist in Tehran, Germany’s Spiegel Online news website reported.

The killing of Dariush Rezaei-Nejad was “the first serious action taken by the new Mossad chief Tamir Pardo,” according to an unidentified Israeli intelligence source quoted by Spiegel Online.

Iranian press reports said Rezaei-Nejad was shot five times by unknown assailants as he and his wife were waiting for their child in front of a kindergarten in Tehran on July 23. His wife was wounded in the attack.

The Iranian government blamed the United States and Israel for the attack, the latest in a series targeting Iranian nuclear scientists who are suspected by the West to be working on a nuclear weapon programme.

Tehran denies it has such a programme and insists that its atomic activities are entirely peaceful.

Rezaei-Nejad is believed to have worked on the trigger mechanism for nuclear weapons, Spiegel Online said in its report first published on Monday.

Israel behind killing of Iranian scientist – report | World | DAWN.COM

[Incognito]

BTW Don't think that all information is on the Internet.

You're right, they found this picture in his son's 'What Daddy does for work' scrapbook.



Maybe he is the Tehran TomTom after all. Look Paddy you've got a hat just like his.

[doodab]

Personally I think it's likely that the Iranians did actually do this and dismissing it as propaganda is a mistake.