(iOS) 탈옥(jailbreak)의 개념 및 종류

1. 소스

reference : https://www.cydiacloud.com/, https://www.theiphonewiki.com/wiki/Jailbreak, https://namu.wiki/w/Cydia

Cydia Cloud | Cydia Download on all iOS version (No Jailbreak Needed)

Jailbreak - The iPhone Wiki

Cydia - 나무위키

 

2. 정리

1. What is Cydia?

 [Cydia cloud]

 : Cydia or Cydia installer, is a third-party application installer developed for the jailbroken iOS devices.

 : It is similar to App store.

 [나무위키]

 : 탈옥한 iOS 기기의 경우, 사실상 반드시 시디아를 설치해야 한다.

 : 흔히 탈옥이라고 하면 "시디아를 설치했다" 정도로 봐도 된다.

 

2. What is iOS jailbreak?

 [Cydia cloud]

 : Jailbreaking is the mechanism that modifies the operating system of iDevices to gain root access.

 : Jailbreaking is almost the same as Android rooting as both processes are for gaining root access.

 [iphone wiki]

 : Jailbreak is the process by which full execute and write access is on all the partitions of iOS etc.

 : It used to be done by patching /private/etc/fstab to mound the System partition as read-write.

 : Older jailbreaks also included modifying the AFC service to give full filesystem access from root.

  : AFC is the protocol used by iTunes to access the filesystem

  : This was later updated to create a new service, AFC2, that allows access to the full filesystem.

 : Modern jailbreaks now include patching the kernel to get around code signing and other restrictions.

  : These are called Kernel Patches.

 

to be continued