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To Avoid Detection, Terrorists Made Messages Seem Like Spam

fabrica64 Re:Solution! (110 comments)

And given the way things works in this world some bad guys in the government will begin to sell keys in the black market to some rogue state or organization with deep pockets... You may force a backdoor but you will never be sure being the only one using it :-)

about two weeks ago
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To Avoid Detection, Terrorists Made Messages Seem Like Spam

fabrica64 Re:Solution! (110 comments)

But let's be serious, how can smart people think that any serious terrorist would use gmail or facebook to discuss an attack? If Cameron/Obama "security plan" is to control cloud services then one of the two, they are very naive or they have an hidden agenda that has nothing to do with controlling terrorism...

about two weeks ago
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To Avoid Detection, Terrorists Made Messages Seem Like Spam

fabrica64 Re:Solution! (110 comments)

The problem is that you can't give the capability to decrypt by law... it's open source software, so no backdoors, and if you don't have the key you can't decipher. Unless they ban linux, force everybody to use a backdoored OS and they make open source illegal. Much simpler just backdoor the HW, the processor. There's no opensource processor out there

about two weeks ago
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To Avoid Detection, Terrorists Made Messages Seem Like Spam

fabrica64 Re:Solution! (110 comments)

Has someone explained to Cameron what encryption is and why can't be blocked? I mean it can be blocked, it's just block everything...

about two weeks ago
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Extracting Data From the Microsoft Band

fabrica64 Re:This also means (51 comments)

Be smart, just use a CA cert you trust, not the ones some else do, like the list provided by the browser or the OS

about a month and a half ago
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Extracting Data From the Microsoft Band

fabrica64 Re:This also means (51 comments)

And I was not talking about server SSL certs, but CA certs, certainly a dev that took the approach to verify a single specific certificate are not understanding very well PKI as well as you don't understand SSL architecture

about a month and a half ago
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Extracting Data From the Microsoft Band

fabrica64 Re:This also means (51 comments)

In other words, just to let you understand, you don't need to have a top CA installed on your phone to be interceped through MITM, and apparently this also happens with your whole government department...

about a month and a half ago
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Extracting Data From the Microsoft Band

fabrica64 Re:This also means (51 comments)

Thanks for the nice words... This (having a rogue top CA ruining the entire SSL system) is a known vulnerability in the SSL architecture and it has already been used to infiltrate MS Windows updates. For this reason if you want real security you dont' use the current SSL CA structure. People don't talk too much about it for various reasons, banks don't want to create panic, government wants easy wiretap, etc. If you are happy with current top CA lists that comes with the standard browsers you really are giving your security keys to people you don't know and that are not "certified" at all. Good luck!

about a month and a half ago
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Extracting Data From the Microsoft Band

fabrica64 Re:This also means (51 comments)

But a smart SSL application would check the cloud server against a specific SSL certificate authority (MS CA?) to protect against MITM

about a month and a half ago
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Statisticians Uncover What Makes For a Stable Marriage

fabrica64 A demonstration big data analysis may be worthless (447 comments)

That's a demonstration of how big data analysis may be worthless and misleading. Nowadays we don't talk about neural networks anymore but they mainly produced these kind of idiot results

about 4 months ago
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DARPA Delving Into the Black Art of Super Secure Software Obfuscation

fabrica64 Re:Good luck with that. (124 comments)

So you can basically "mathematically" obfuscate a function that is a"pure" function not implementable in a imperative programming and that it has no IO = you can obfuscate something that has no use and probably nobody knows well what it is doing :-)

about 4 months ago
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World's Fastest Camera Captures 4.4 Trillion Frames Per Second

fabrica64 Any viewer available? (94 comments)

It will take a long time to see that second!

about 6 months ago
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Laser Eye Surgery, Revisited 10 Years Later

fabrica64 Presbyopia? (550 comments)

When you'll be 40+ you'll understand why it was better not doing that and using contacts :-)

about 6 months ago
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Apple Refutes Report On iPhone Threat To China's National Security

fabrica64 No security through obscurity (134 comments)

Software must be audited to be sure there's no backdoor... Only open source is secure (including open source silicon) If I were NSA I had built a backdoor in hardware, much more effective and software independent

about 7 months ago
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The Lovelace Test Is Better Than the Turing Test At Detecting AI

fabrica64 Re:Turing test not passed. (285 comments)

I guess it can be described differently. As computers are deterministic, true AI is when a computer behaves in a not deterministic manner. Actually no computer has intelligence because given the same input, they give the same results.

about 7 months ago
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Brazil Blocks Foreign Mobile Phones

fabrica64 Re:Not in june, only after september (97 comments)

The system works this way:
- there is a blacklist of TAC (initial part of IMEI that identify manufacturer, model and sub model: http://en.wikipedia.org/wiki/T... [wikipedia.org])
- actually info for this blacklist is furnished by manufacturers, that will probably include all their models regardless of being or not sold in Brazil, but this can be later changed by Anatel, restricting the list
- there will be a whitelist of "blacklisted IMEIs" activated in the network before March 17th, 2014
- there will be a blacklist of permitted IMEI (e.g. an iPhone sold in Brazil) that were used (i.e. cloned) in "IMEI configurable" Chinese smartphones/tablet
- there will be a whitelist of IMEI+IMSI to identify the original cloned (I don't know who will identify the original one if many claims to be the original one)
- block will be set in the network on each individual IMEI
- permission will be set in the network for specific IMEI+IMSI
- the system is tailored to control individual IMEIs and not only generic TAC
Do you see the potential of chaos? Chinese smartphone seller will setup "change your IMEI daily" services and it will be cat and mouse play until a complete mess... and mobile operator will hardly divert resource to help in solving it or handle complaints...

about 10 months ago
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Brazil Blocks Foreign Mobile Phones

fabrica64 Re:Not in june, only after september (97 comments)

The system works this way: - there is a blacklist of TAC (initial part of IMEI that identify manufacturer, model and sub model: http://en.wikipedia.org/wiki/T...) - actually info for this blacklist is furnished by manufacturers, that will probably include all their models regardless of being or not sold in Brazil, but this can be later changed by Anatel, restricting the list - there will be a whitelist of "blacklisted IMEIs" activated in the network before March 17th, 2014 - there will be a blacklist of permitted IMEI (e.g. an iPhone sold in Brazil) that were used (i.e. cloned) in "IMEI configurable" Chinese smartphones/tablet - there will be a whitelist of IMEI+IMSI to identify the original cloned (I don't know who will identify the original one if many claims to be the original one) - block will be set in the network on each individual IMEI - permission will be set in the network for specific IMEI+IMSI - the system is tailored to control individual IMEIs and not only generic TAC Do you see the potential of chaos? Chinese smartphone seller will setup "change your IMEI daily" services and it will be cat and mouse play until a complete mess... and mobile operator will hardly divert resource to help in solving it or handle complaints...

about 10 months ago
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Brazil Blocks Foreign Mobile Phones

fabrica64 Re:Not in june, only after september (97 comments)

Probably yes (initial IMEI list will be provided by manufacturers) but once you have this system in place the government might use it more effectively to control and block smartphones not sold in Brazil. Why do you need such a system? Mobile operators hate it (if you pay you are ok), Anatel (the Brazilian FCC) approves GSM standards and most of smartphones abide to these standards, there's no technical reason here. The system can control individual IMEIs and it will also be used to control stolen devices

about 10 months ago
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Brazil Blocks Foreign Mobile Phones

fabrica64 Re:Not in june, only after september (97 comments)

It was about to start blocking in April, but someone in the government got a ping from someone else about being very bad news blocking phones during the world cup... But it's not certain it will begin in September or if will ever start blocking, given all mobile operators are against this "system" BTW this is not only about Chinese smartphone (where you can change IMEI in a snap), it is about blocking smartphones not sold in Brazil (although nobody will ever admit it in the government). IMEI can differentiate between an A1457 sold in Brazil and one sold in Europe, and HTC is not sold at all here I mean, it may appear to be an article for cheap country based hate but actually is Brazilian government that expose himself to the ridicule sustaining something being done for technical reasons when in reality is a pure fiscal issue.

about 10 months ago

Submissions

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Bitcoin: earn money on emerging market BTC rate spread

fabrica64 fabrica64 writes  |  about 6 months ago

fabrica64 (791212) writes "If you are an EU national residing in Brazil you can, theoretically, earn on Brazilian inflated BTC rates at biggest local exchange (www.mercadobitcoin.com.br)
Local BTC exchange is trading BTC with a 13% premium over BTC-EUR rate, so, for example, if I have 1 bitcoin I can trade it for 1473 Reals (BRL) and then trade 1473 Reals for 489 Euro (at 3.011 rate) and buy 1.132 BTC at current rates on BTC-e (July 30, 2014, 19:19 UTC) with a 13+% gain
Transferring Reals to Euro, if you are a legal resident in Brazil, will cost you no more than 4%, and even paying another 4% for additional fees you end up with 5% gain...
I guess the same is valid for USD.
Has anyone ever tried that?"

Link to Original Source
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Brazil blocks foreign mobile phones

fabrica64 fabrica64 writes  |  about 10 months ago

fabrica64 (791212) writes "Brazilian government starts today blocking mobile phones not sold in Brazil, i.e. not having paid sales taxes here.
The blocking is based on IMEI and if you come to Brazil for the world cup in june and think of buying a Brazilian SIM card to call locally at lower rates then it won't work because your mobile's IMEI will be blacklisted as not sold in Brazil.
This is not a joke, its true!"

Link to Original Source

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