Hackers are working to unlock Apple's iPhone, but the job appears to be more difficult than initially expected.

Hackers had hoped that modifying the iPhone's bootloader -- the program that runs before the operating system is loaded -- would unlock the handset. But that turned out to be a dead end, as the bootloader code must be signed using a 1,024-bit RSA private key employed by Apple, according to an update released last week by hackers working together on the #iphone IRC (Internet Relay Chat) channel.

Now the hackers on #iphone are working to create an assembler utility for the iPhone's processor. "This is our last major hurdle to overcome in order to write programs for the phone," they said last week.

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Apple, iPhone, Ulock, Hack, Hacking, Hacker, iPhone News