Mobile phone security cracked !! - engleza -

[go_sword]

A German computer scientist has cracked the codes used to encrypt calls made from more than 80% of the world's mobile phones.

Karsten Nohl and his team of 24 hackers began working on the security algorithm for GSM (Global System for Mobiles) in August.

Developed in 1988, the system prevents the interception of calls by forcing phones and base stations to change frequencies constantly. Most of the UK's mobile phones use the GSM system and the breach represents a potential threat to the security of mobile phone communication.

Nohl claims that armed with the code, which has been published online, and a laptop with two network cards, an eavesdropper could be recording phone calls within 15 minutes.

"This shows that existing GSM security is inadequate," Nohl told the Chaos Communication Congress, an international annual meeting of hackers taking place in Berlin this week.

Nohl insisted that he had deciphered the code to force the global telecommunications industry to upgrade its security.

Nohl told the Guardian that important negotiations involving politicians or business leaders could easily be intercepted and they should invest in further encryption software to protect their privacy. "If there is anything secret going on using GSM, this should be of concern."

The GSM Association, which represents the interests of the worldwide mobile communications industry, played down the security threat and said Nohl's activity was "highly illegal".

"We consider this research, which appears to be motivated in part by commercial considerations, to be a long way from being a practical attack on GSM," said Claire Cranton, a spokeswoman. "To do this while supposedly being concerned about privacy is beyond me."

Nohl, who has a doctorate in computer engineering from the University of Virginia, insisted his work was purely academic. "We have written advice from our lawyers stating that our research is within the legal realm," he said. "Obviously the data we produce could of course be used for illegitimate purposes."

Simon Bransfield-Garth, the chief executive of London-based encryption software firm Cellcrypt, said: "The code that has been cracked is for the 21-year-old 64-bit A5/1 GSM algorithm. In 2007 the GSM Association developed a 128-bit version, A5/3. However, most network operators have not invested to make the required upgrade.

"We said in August when this project began that the code would be broken within nine to 12 months. This is a very significant step."

~ The Guardian ~ Mobile phone security cracked, says German hacker | Technology | guardian.co.uk

[begood]

Doar ca nu e cracked, a fost gasita o metoda sa scada keyspace-ul care trebuie parcurs pentru a sparge a5/1. Astfel ei au adoptat atacul rainbow tables, si cloud computing + cloud storage pentru ca, in caz ca aceasta tentativa este atacata in instanta...ca fiind ilegala, sa fie practic imposibil sa opresti reteaua de computere care stocheaza si sparg parolele introduse in sistem. In total tabelele ocupa 2.5 TiB, dar un computer stocheaza doar 6 GiB.

In orice caz sunt geniali, au facut niste artificii care m-au lasat masca, si pentru generarea tabelelor dar si pentru tipul de reteaua distribuita care a fost implementata.

http://reflextor.com/trac/a51/wiki

[Rechinu]

Geniali nu gluma:) chiar citisem undeva pe un forum de prin U.K parca....nu mai stiu adresa ca "in scurt timp lumea va afla adevarata fata a GSM=-ului"...R2D2 nickul parca...cred ca la asta se refera:P si eu in plm o ard pe teorema lui cauchy la Facultatea de electronica,calcultoare si telecomunicatii ...in plm nu facem nimik in tara asta

[daatdraqq]

Genial in istoria hack-ingului legat de telefonia mobila mi s-a parut adaugarea unui numar de telefon in categoria 112 a telefonului .E complicat si nu am timp acum sa explic amanuntit ...google

[go_sword]

bine zici daatdraqq.googleing now...

LE: nu gasesc nimic concret...un link ceva ?

[Rechinu]

pai daca "tot ai adus vorba"...explica-ne si pe noi sa nu intram prosti in 2010:

[go_sword]

dar am o nelamurire...sa zicem,teoretic,ai reusit sa umbli la telefon si ai incadrat un nr oarecare in categoria numarului 112.intrebarea mea este : operatorul nu ar avea nimic de zis ? ma refer la o eventuala detectare

recunosc,sunt pe nicaieri in domeniul asta,poate pun intrebari tampite

[Guest vini4p]

Romania libera: Editia online

[daatdraqq]

E o zona protejata a telefonului/sim-ului,unde userul nu are acces si in care se afla numerele de urgenta care sunt gratuite .Orice numar adaugi in locul numarului de urgenta ,teoretic,vei putea sa suni la el gratuit pentru ca operatorul de telefonie crede ca e numar de urgenta si nu il taxeaza.Imi pare rau ,nu gasesc nimic sa va dau de pe google ,am citit acum ceva timp despre asta intr-o revista ,erau niste "baieti destepti" care vorbeau despre asta .Sunt niste termeni de specialitate ..plm ..probabil cine se pricepe la telefoane stie despre ce e vorba ..

[begood]

for those looking for the torrents, the information on the trackers is on:

http://reflextor.com/trac/a51/wiki/runningtheprogram

torrents appears to be available from index of /torrents

if you want to grab all the torrent files:

Wget -c -n --no-parent -a "torrent" -r "http://reflextor.com/torrents/"

torrents index of /torrents

in total 2.5 TiB, inca nu e totul acolo, sunt torrente de 2-9 GiB.

[Rechinu]

ceva de genu asta?

[begood]

ceva de genu asta?

nu ma, nu e vorba de nokia ci de tehnologia GSM folosita de TOT GLOBUL.

a5/1 algorithm rainbow tables.

Index of /torrents

[Rechinu]

pai a fost un replay pt daatdraqq in legatura cu zona protejata a telefonului/sim-ului si siteul pe care l-am dat..mai pe la sfarsit asa spune despre un cod in care poti "patrunde" in zona aia protejata pentru telefoanele acelea listate..

[RIP]

apropo ... din cunostiintele mele... chinezii nu au voie sa foloseasca nici A5/1, daramite a5/3-ul