想問下security... iOs.....(咁iOS 都base on BSD o者).

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本帖最後由 samiux 於 2012-7-30 00:38 編輯
其實 iOS 做到 full device encryption 未?
下邊搵左d info...
但唔太明.

第一paragraph 話iOS 本身   一 ...
daxdragon10 發表於 2012-7-30 00:02


I am going to try to answer your questions when I have no deep knowledge of the security policy of Mac OS.

I am just thinking like a criminal in order to try to break into the system.

Firstly, the PIN may be also encryted in somewhere on the hard drive or ROM when it is running or power off.  I believed that it is more chance to store in hard drive.  It is because when user login with the PIN, the data on the hard drive is decrypted.  Therefore, the PIN should be stored in the hard drive.  Or, maybe stored in a security chip that similar to ROM.

As a result, there is a chance to decrypt the PIN beforehand with the nowadays powerful personal computer.  Believe it or not, I have one such kind of beast.

Secondary, when the Mac box is running, such as a Mac Server.  All the data should be decrypted already.  If hacker gains access by remote or local access, then get the root privilege, the system is pwned.

Thirdly, if the Mac OS or one of her applications has vulnerabilities, hacker can gains access the system with the root privilege.  The system is also pwned.

It is just a concept and not yet proof.

Samiux

Update reason : fix the typos

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其實我都好唔明 iOS 's Jail Break 同  Android 個root.

JB 上次話係adobe pdf reader 有bug , 比人hijack ...
daxdragon10 發表於 2012-7-30 00:29


Basically, your knowledge is wrong.  As far as I know, Jail Break and Root in Android are going to break the security policy in order to get the root privilege.  Once you have the root privilege, you can do anything you like on the system without any problem.

You mentioned Adobe Reader exploit is a vulnerability of Adobe Reader.  It is no direct relationship with Mac OS.

I think you need to learn more about security and operating system as your concept and knowledge are totally wrong, in my opinion.

Samiux

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本帖最後由 samiux 於 2012-7-30 01:11 編輯
wow thx for ur reply but I think it is you that need to learn more if u r really interested in compu ...
daxdragon10 發表於 2012-7-30 00:52



Hey, man!  You mentioned Jail Break in the second post and now you tell me that it is a piece of exploit software namely JailbreakMe 3.0.  Meanwhile, Jail Break is a term.

JailbreakMe is a piece of software that taking advantage of Safari PDF rendering vulnerability to get root privilege.  In term of Apple guys, to get root privilege is namely Jail Break.  

Jail Break is a term used by Apple guys that is to bypass or break the security policy of the OS to get root privilege.

Samiux

Update reason : fix the typos

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anyway, I mean if a iphone is able to be jailbreaked, or any android that can be rooted
daxdragon10 發表於 2012-7-30 01:16


No.

Do you recall what I have stated at here?
  1. "hacker" is refer to the one can make the thing doing in the way that not by design.
複製代碼
Since those security policies are designed and implemented by human beings (or says programmers), hackers, who are elite programmers, can break such kind of the policies.

Samiux

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