Firmware Keys

VFDecrypt Keys are the keys which can decrypt the files that come with the firmware. Apple uses a public-private key encryption to ensure the safety of their files. Over time Apple has changed the way to encrypt firmware files, thus the way to decrypt files as well as the way to get the VFDecrypt Keys has also.

IMG2 was the file format used prior to iOS 2.0. For iOS 1.1.x, IMG2 files were encrypted with Key 0x837.

IMG3 encrypted files contain encrypted versions of the VFDecrypt Keys as part of the KBAG (key bag). These can be decrypted with the GID-key. For jailbroken iDevices the VFDecrypt keys can be retrieved with the devices hardware AES engine. The VFDecrypt key for the root filesystem image of an iDevice (~500 MB to 800MB in the case of iOS 5) requires either a decrypted Restore Ramdisk or Update Ramdisk. Once you have a decrypted Restore or Update Ramdisk, GenPass can be used to gather the keys for the root filesystem. For the root filesystem there is one key per device model, with no IV. You can mount this once it has been decrypted using your program of choice. (For example, 7-zip on Windows (after extracting the DMG on Windows, extract the biggest file with 7-Zip)

Notes

The Update Ramdisk and Restore Ramdisks share the same IV and key per type of Application Processor. The current models are:

Application Processor	iDevice
S5L8900	iPhone, iPhone 3G, iPod touch
S5L8720	iPhone, iPod touch 2G
S5L8920	iPhone 3GS
S5L8922	iPod touch 3G
S5L8930 (A4)	iPad, iPhone 4, iPod touch 4G, Apple TV 2G
S5L8940 (A5)	iPad 2, iPhone 4S
S5L8942 (revised A5)	iPad 2 Wi-Fi R2, Apple TV 3G
S5L8945 (A5X)	iPad 3

You can use img3decrypt[1] or xpwntool[2] to decrypt these as described in Ramdisk Decryption. Once done, mount or extract using the tool of your choice.

When posting a key page, please use the key template (IN THE CORRECT ORDER) and do NOT substitute it.

For the VFDecrypt Keys of each firmware please check the builds listed at the appropiate firmware version page.

Firmware versions

Final

Main article: Firmware

1.x

Date	Build	iPhone	iPod touch 1G
?	1A420	1.0	Unavailable
?	1A543a	1.0.0
?	1C25	1.0.1
?	1C28	1.0.2
?	3A100a	Unavailable	1.1
?	3A101a		1.1
?	3A109a	1.1.1	Unavailable
?	3A110a	Unavailable	1.1.1
?	3B48b	1.1.2	1.1.2
?	4A93	1.1.3	1.1.3
?	4A102	1.1.4	1.1.4
?	4B1	Unavailable	1.1.5

2.x

Date	Build	iPhone	iPhone 3G	iPod touch 1G	iPod touch 2G
?	5A345	Unavailable	2.0	Unavailable	Unavailable
?	5A347	2.0	2.0	2.0
?	5B108	2.0.1	2.0.1	2.0.1
?	5C1	2.0.2	2.0.2	2.0.2
?	5F136	2.1	2.1	Unavailable
?	5F137	Unavailable		2.1
?	5F138			Unavailable	2.1.1
?	5G77	2.2	2.2	2.2	Unavailable
?	5G77a	Unavailable			2.2
?	5H11	2.2.1	2.2.1	2.2.1	Unavailable
?	5H11a	Unavailable			2.2.1

3.x

Date	Build	iPad	iPhone	iPhone 3G	iPhone 3GS	iPod touch 1G	iPod touch 2G	iPod touch 3G
?	7A341	Unavailable	3.0	3.0	3.0	3.0	3.0	Unavailable
?	7A400		3.0.1	3.0.1	3.0.1	Unavailable
?	7C144		3.1	3.1	3.1
?	7C145		Unavailable			3.1.1	3.1.1	3.1.1
?	7C146					Unavailable		3.1.1
?	7D11		3.1.2	3.1.2	3.1.2	3.1.2	3.1.2	3.1.2
?	7E18		3.1.3	3.1.3	3.1.3	3.1.3	3.1.3	3.1.3
?	7B367	3.2	Unavailable
?	7B405	3.2.1
?	7B500	3.2.2

4.x

Please note that for the Apple TV the firmware listed in this table is the one that your Apple TV reports. See also Apple TV Firmware Versions.

Date	Build	Apple TV 2G	iPad	iPad 2 (Wi-Fi)	iPad 2 (GSM)	iPad 2 (CDMA)	iPhone 3G	iPhone 3GS	iPhone 4 (GSM)	iPhone 4 (CDMA)	iPod touch 2G	iPod touch 3G	iPod touch 4G
20100901	8M89	4.0	Unavailable
?	8A293	Unavailable	Unavailable				4.0	4.0	4.0	Unavailable	4.0	4.0	Unavailable
?	8A306						4.0.1	4.0.1	4.0.1	Unavailable
?	8A400						4.0.2	4.0.2	4.0.2	Unavailable	4.0.2	4.0.2	Unavailable
?	8B117						4.1	4.1	4.1		4.1	4.1	4.1
?	8B118		Unavailable									4.1	Unavailable
?	8C148		4.2.1	Unavailable			4.2.1	Unavailable	4.2.1	Unavailable	4.2.1	4.2.1	4.2.1
?	8C148a		Unavailable					4.2.1	Unavailable
20101122	8C150	4.1	Unavailable
20101214	8C154	4.1.1
?	8E128	Unavailable								4.2.5	Unavailable
?	8E200									4.2.6
?	8E303									4.2.7
?	8E401									4.2.8
?	8E501									4.2.9
?	8E600									4.2.10
?	8F190	Unavailable	4.3	Unavailable			Unavailable	4.3	4.3	Unavailable		4.3	4.3
?	8F191		Unavailable	4.3	4.3	4.3		Unavailable				Unavailable
20110311	8F191m	4.2	Unavailable
20110322	8F202	4.2.1
20110311	8F305	4.2.2
20110801	8F455	4.3
?	8G4	Unavailable	4.3.1	4.3.1	4.3.1	4.3.1		4.3.1	4.3.1			4.3.1	4.3.1
?	8H7		4.3.2	4.3.2	4.3.2	Unavailable		4.3.2	4.3.2			4.3.2	4.3.2
?	8H8		Unavailable			4.3.2		Unavailable				Unavailable
?	8J2		Unavailable	4.3.3	4.3.3	4.3.3		4.3.3	4.3.3			4.3.3	4.3.3
?	8J3		4.3.3	Unavailable				Unavailable				Unavailable
?	8K2		4.3.4	4.3.4	4.3.4	4.3.4		4.3.4	4.3.4			4.3.4	4.3.4
?	8L1		4.3.5	4.3.5	4.3.5	4.3.5		4.3.5	4.3.5			4.3.5	4.3.5

5.x

Please note that for the Apple TV the firmware listed in this table is the one that your Apple TV reports. See also Apple TV Firmware Versions.

Date (YYYY/MM/DD)	Build	Apple TV 2G	Apple TV 3G	iPad	iPad 2 (Wi-Fi)	iPad 2 (GSM)	iPad 2 (CDMA)	iPad 2 R2	iPad 3 (Wi-Fi)	iPad 3 (CDMA)	iPad 3 (Global)	iPhone 3GS	iPhone 4 (GSM)	iPhone 4 (CDMA)	iPhone 4S	iPod touch 3G	iPod touch 4G
2011/10/12	9A334	Unavailable		5.0	5.0	5.0	5.0	Unavailable				5.0	5.0	5.0	5.0	5.0	5.0
2011/10/12	9A334v	4.4	Unavailable
2011/10/18	9A335a	4.4.1
2011/11/02	9A336a	4.4.2
2011/11/10	9A405	Unavailable		5.0.1	5.0.1	5.0.1	5.0.1	Unavailable				5.0.1	5.0.1	5.0.1	5.0.1	5.0.1	5.0.1
2011/11/17	9A405l	4.4.3	Unavailable
2011/12/15	9A406	Unavailable													5.0.1	Unavailable
2011/12/15	9A406a	4.4.4	Unavailable
2012/03/07	9B176	Unavailable		5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1	Unavailable	5.1	5.1
2012/03/07	9B179	Unavailable													5.1	Unavailable
2012/03/07	9B179b	5.0	5.0	Unavailable
2012/05/10	9B206	Unavailable		5.1.1	5.1.1	5.1.1	5.1.1	5.1.1	5.1.1	5.1.1	5.1.1	5.1.1	5.1.1	5.1.1	5.1.1	5.1.1	5.1.1
2012/05/10	9B206f	5.0.1	5.0.1	Unavailable
2012/05/25	9B208	Unavailable											5.1.1	Unavailable
2012/06/05	9B830	5.1.2	5.1.2	Unavailable

Beta

Main article: Beta Firmware

1.x/2.x

Date	Build	iPhone	iPhone 3G	iPod touch
?	5A147p	1.2b1	Unavailable	1.2b1
?	5A225c	2.0b2		2.0b2
?	5A240d	2.0b3		2.0b3
?	5A258f	2.0b4		2.0b4
?	5A274d	2.0b5		2.0b5
?	5A292g	2.0b6P		2.0b6P
?	5A308	2.0b6F		2.0b6F
?	5A331	2.0b7		2.0b7
?	5A345	2.0b8GM		2.0b8GM
?	5F90	2.1b1		2.1b1
?	5G26	2.2b1	2.2b1	2.2b1

3.x

Date	Build	iPhone	iPhone 3G	iPhone 3GS	iPod touch	iPod touch 2G
?	7A238j	3.0b1	3.0b1	Unavailable	3.0b1	3.0b1
?	7A259g	3.0b2	3.0b2		3.0b2	3.0b2
?	7A280f	3.0b3	3.0b3		3.0b3	3.0b3
?	7A300g	3.0b4	3.0b4		3.0b4	3.0b4
?	7A312g	3.0b5	3.0b5		3.0b5	3.0b5
?	7C97d	3.1b1	3.1b1	3.1b1	3.1b1	3.1b1
?	7C106c	3.1b2	3.1b2	3.1b2	3.1b2	3.1b2
?	7C116a	3.1b3	3.1b3	3.1b3	3.1b3	3.1b3

4.x

Please note that for the Apple TV the firmware listed in this table is the one that your Apple TV reports. See also Apple TV Firmware Versions.

Date	Build	Apple TV 2G	iPad	iPhone 3G	iPhone 3GS	iPhone 4 (GSM)	iPod touch 2G	iPod touch 3G	iPod touch 4G
?	8A230m	Unavailable		4.0b1	4.0b1	Unavailable	4.0b1	4.0b1	Unavailable
?	8A248c			4.0b2	4.0b2		4.0b2	4.0b2
?	8A260b			4.0b3	4.0b3		4.0b3	4.0b3
?	8A274b			4.0b4	4.0b4		4.0b4	4.0b4
?	8A293			4.0GM	4.0GM		4.0GM	4.0GM
?	8B5080			Unavailable			4.1b1	4.1b1
?	8B5080c			4.1b1	4.1b1	4.1b1	Unavailable
?	8B5091b	4.1b2	4.1b2	4.1b2	4.1b2	4.1b2
?	8C5091e	Unavailable	4.2b1	4.2b1	4.2b1	4.2b1	4.2b1	4.2b1	4.2b1
?	8C5101c		4.2b2	4.2b2	4.2b2	4.2b2	4.2b2	4.2b2	4.2b2
?	8C5115c		4.2b3	4.2b3	4.2b3	4.2b3	4.2b3	4.2b3	4.2b3
?	8C134		4.2GM	4.2GM	4.2GM	4.2GM	4.2GM	4.2GM	4.2GM
?	8C134b		4.2GM	Unavailable
?	8C148		4.2.1GM	4.2.1GM	4.2.1GM	4.2.1GM	4.2.1GM	4.2.1GM	4.2.1GM
?	8F5148b	Unavailable	4.3b1	Unavailable	4.3b1	4.3b1	Unavailable	4.3b1	4.3b1
20110112	8F5148c	4.2b1	Unavailable		Unavailable	Unavailable		Unavailable	Unavailable
20110119	8F5153d	4.2b2	4.3b2		4.3b2	4.3b2		4.3b2	4.3b2
20110201	8F5166b	4.2b3	4.3b3		4.3b3	4.3b3		4.3b3	4.3b3
?	8F190	Unavailable	4.3GM		4.3GM	4.3GM		4.3GM	4.3GM

5.x

Please note that for the Apple TV the firmware listed in this table is the one that your Apple TV reports. See also Apple TV Firmware Versions.

Date	Build	Apple TV 2G	Apple TV 3G	iPad	iPad 2 (Wi-Fi)	iPad 2 (GSM)	iPad 2 (CDMA)	iPhone 3GS	iPhone 4 (GSM)	iPhone 4 (CDMA)	iPod touch 3G	iPod touch 4G
20110607	9A5220p	4.4b1	Unavailable	5.0b1	5.0b1	5.0b1	5.0b1	5.0b1	5.0b1	5.0b1	5.0b1	5.0b1
20110624	9A5248d	4.4b2		5.0b2	5.0b2	5.0b2	5.0b2	5.0b2	5.0b2	5.0b2	5.0b2	5.0b2
20110712	9A5259f	4.4b3		5.0b3	5.0b3	5.0b3	5.0b3	5.0b3	5.0b3	5.0b3	5.0b3	5.0b3
?	9A5274d	Unavailable		5.0b4	5.0b4	5.0b4	5.0b4	5.0b4	5.0b4	5.0b4	5.0b4	5.0b4
20110806	9A5288d	4.4b5		5.0b5	5.0b5	5.0b5	5.0b5	5.0b5	5.0b5	5.0b5	5.0b5	5.0b5
20110819	9A5302b	4.4b6		5.0b6	5.0b6	5.0b6	5.0b6	5.0b6	5.0b6	5.0b6	5.0b6	5.0b6
20110831	9A5313e	4.4b7		5.0b7	5.0b7	5.0b7	5.0b7	5.0b7	5.0b7	5.0b7	5.0b7	5.0b7
?	9A334	Unavailable		5.0GM	5.0GM	5.0GM	5.0GM	5.0GM	5.0GM	5.0GM	5.0GM	5.0GM
20111212	9B5127c	5.0b1		Unavailable
20111212	9B5141a	5.0b2