Apple Wins Another Round Against Jailbreaking !
Apple has always had a kind of war against “Jailbreak” and until this day Apple still winning in it’s game against jailbreak, when the jailbreak hackers have the chance to find an exploit Apple release a software update to patch it.
And this time Apple wins another round, but how ? Well as we all know iOS 5 has released yesterday, but as it was noted by the Dev-Team that any user who will try to upgrade his iDevice to iOS 5 will not be able to downgrade it again Apple has changed the way that they authenticate software restores, so saved SHSH blobs won’t help.
“Starting with iOS 5 beta, the role of the “APTicket” is changing — it’s being used much like the “BBTicket” has always been used. The LLB and iBoot states of the boot sequence are being refined to depend on the authenticity of the APTicket, which is uniquely generated at each and every restore (in other words, it doesn’t depend merely on your ECID and firmware version…it changes every time you restore, based partly on a random number). This APTicket authentication will happen at every boot, not just at restore time. Because only Apple has the crypto keys to properly sign the per-restore APTicket, replayed APTickets are useless.”
So what do you think about this bad news ? We will keep you updated if there is any good news !