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Difference between revisions of "ECID"
(apparently http://www.wired.com/images_blogs/threatlevel/2009/07/applejailbreakresponse.pdf said 'exclusive chip id' but that seems to be referring more to the ICCID...so who knows) |
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===Developer Instructions=== |
===Developer Instructions=== |
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Call the AMDeviceCopyValue function in the [[MobileDevice Library|MobileDevice Framework]] with the "UniqueChipID" value. It returns the ECID as a CFNumber(kCFNumberSInt64Type) object. |
Call the AMDeviceCopyValue function in the [[MobileDevice Library|MobileDevice Framework]] with the "UniqueChipID" value. It returns the ECID as a CFNumber(kCFNumberSInt64Type) object. |
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| + | |||
| + | === Extract your ECID from an shsh === |
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| + | There are 19 blobs in an shsh,and the first line of every blob is the same as below: |
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| + | |||
| + | RElDRUAAAAAIAAAA********AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA |
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| + | |||
| + | The * part is the ECID(Dec) encrypted by a certain formula which is |
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| + | |||
| + | a.Transform ECID(Dec) into ECID(Hex) such as 58608372174291 ---> 35 4D D3 34 4D D3 |
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| + | |||
| + | b.Reverse the ECID(Hex) string such as 35 4D D3 34 4D D3 ---> D3 4D 34 D3 4D 35 |
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| + | |||
| + | c.Transform the string we have got into binary such as D3 4D 34 D3 4D 35 ---> ÓM4ÓM5 |
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| + | |||
| + | d.Encode the binary with base64 such as ÓM4ÓM5 ---> 00000001 |
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| + | |||
| + | Use this formula backward (d. to a.) we can extract the * part into ECID(Dec). |
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Revision as of 05:53, 28 May 2012
The ECID (possibly standing for Exclusive Chip ID or Electronic Chip ID) is an identifier unique to every unit.
ECID looks like this: 00000XXXXXXXXXXX (hex)
Please be aware that some tools display the ECID in decimal format.
The ECID is a very important element in the SHSH Protocol
Contents
Get your ECID
Mac Instructions
- Put your device in Recovery Mode or DFU Mode.
- Open System Profiler. (in /Applications/Utilities/)
- In the sidebar, go to "USB" (in the "Hardware" section)
- Under "Serial Number", there should be a part called "ECID". There you go.
Windows Instructions
- Put your device in Recovery Mode or DFU Mode.
- Open Device Manager and right click on Apple Mobile Device (Recovery or DFU Mode) for properties
- Click on the details tab
- Click on the dropdown box and select Device Instance Path
- You should find it in the textbox
Developer Instructions
Call the AMDeviceCopyValue function in the MobileDevice Framework with the "UniqueChipID" value. It returns the ECID as a CFNumber(kCFNumberSInt64Type) object.
Extract your ECID from an shsh
There are 19 blobs in an shsh,and the first line of every blob is the same as below:
RElDRUAAAAAIAAAA********AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
The * part is the ECID(Dec) encrypted by a certain formula which is
a.Transform ECID(Dec) into ECID(Hex) such as 58608372174291 ---> 35 4D D3 34 4D D3
b.Reverse the ECID(Hex) string such as 35 4D D3 34 4D D3 ---> D3 4D 34 D3 4D 35
c.Transform the string we have got into binary such as D3 4D 34 D3 4D 35 ---> ÓM4ÓM5
d.Encode the binary with base64 such as ÓM4ÓM5 ---> 00000001
Use this formula backward (d. to a.) we can extract the * part into ECID(Dec).
