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Difference between revisions of "SHSH Protocol"

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m (→‎Other parameters / open questions)
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*action=2 in the request. What other values exist and what is their meaning?
  
*action=2 in the request. What other values exist and what is their meaning?
 
*STATUS=0&MESSAGE=SUCCESS in the answer. What other values exist?
  
*STATUS=0&MESSAGE=SUCCESS in the answer. What other values exist?
−
*@HostIpAddress This was not my IP address, so it is assumed this will not be checked.
  
−
*@HostPlatformInfo What would this value be on a Mac?
  
−
*@Locality This will probably not be checked. This test request was from outside US.
  
−
*@VersionInfo Are other values in use?
  
−
*ApBoardID Do values other than 2 exist? Where can this value be read?
  
 
*ApProductionMode What does this mean? Is there a test environment?
  
*ApProductionMode What does this mean? Is there a test environment?
 
*ApSecurityDomain Meaning?
  
*ApSecurityDomain Meaning?

Revision as of 12:57, 22 December 2010

Here is a description about the protocol that is used when iTunes or TinyUmbrella request the SHSH certificate from Apple. For details about what this is used for, please see the main article SHSH.

This is a simple HTTP (POST) request and answer. You can retry this via a Telnet session or similar. The destination host is gs.apple.com (as of 28. October 2010 at IP 17.112.176.11) and runs on the common HTTP port 80. The data is plaintext and not encoded in any way. For details about the protocol itself, please see RFC2616.

Sending data (request)

POST /TSS/controller?action=2 HTTP/1.1
Accept: */*
Cache-Control: no-cache
Content-type: text/xml; charset="utf-8"
User-Agent: InetURL/1.0
Content-Length: 12345
Host: gs.apple.com

(here comes the Plist request file)

Receiving data (answer)

HTTP/1.1 200 OK
Date: Sun, 15 Aug 2010 19:25:18 GMT
Server: Apache-Coyote/1.1
X-Powered-By: Servlet 2.4; JBoss-4.0.5.GA (build: CVSTag=Branch_4_0 date=200610162339)/Tomcat-5.5
Content-Type: text/html
Content-Length: 123456
MS-Author-Via: DAV

STATUS=0&MESSAGE=SUCCESS&REQUEST_STRING=(here comes the requested SHSH file)

Plist request file

                                 This template is only for devices other than the iPhone 4

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">

<plist version="1.0">
<dict>
	<key>@HostIpAddress</key>
	<string>192.168.0.1</string>
	<key>@HostPlatformInfo</key>
	<string>windows</string> -------> "darwin" for Mac/Linux Systems
	<key>@Locality</key>
	<string>en_US</string>
	<key>@VersionInfo</key>
	<string>libauthinstall-34</string>  -------> "3.8" without quotes for Mac/Linux Systems
	<key>ApBoardID</key>
	<integer>____</integer>
	<key>ApChipID</key>
	<integer>____</integer>
	<key>ApECID</key>
	<string>*************</string>  ------------> This is your own ECID
	<key>ApProductionMode</key>
	<true />                   -----> Check this from the BuildManifest.plist
	<key>ApSecurityDomain</key>
	<integer>_____</integer>
	<key>UniqueBuildID</key>
	_________________________
	<key>AppleLogo</key>
	<dict>
		<key>Digest</key>
		_________________________
		<key>PartialDigest</key>
		_________________________
		<key>Trusted</key>
		<true />
	</dict>
	<key>BatteryCharging</key>
	<dict>
		<key>Digest</key>
		_________________________
		<key>PartialDigest</key>
		_________________________
		<key>Trusted</key>
		<true />
	</dict>
	<key>BatteryCharging0</key>
 	<dict>
		<key>Digest</key>
		_________________________
		<key>PartialDigest</key>
		_________________________
 		<key>Trusted</key>
		<true />
	</dict>
	<key>BatteryCharging1</key>
	<dict>
 		<key>Digest</key>
 		_________________________
		<key>PartialDigest</key>
 		_________________________
 		<key>Trusted</key>
 		<true />
 	</dict>
 	<key>BatteryFull</key>
	<dict>
		<key>Digest</key>
		_________________________
		<key>PartialDigest</key>
		_________________________
		<key>Trusted</key>
		<true />
	</dict>
	<key>BatteryLow0</key>
	<dict>
		<key>Digest</key>
		_________________________
		<key>PartialDigest</key>
		_________________________
		<key>Trusted</key>
		<true />
	</dict>
	<key>BatteryLow1</key>
	<dict>
		<key>Digest</key>
		_________________________
		<key>PartialDigest</key>
		_________________________
		<key>Trusted</key>
		<true />
	</dict>
	<key>BatteryPlugin</key>
	<dict>
		<key>Digest</key>
		_________________________
 		<key>PartialDigest</key>
		_________________________
		<key>Trusted</key>
		<true />
	</dict>
	<key>DeviceTree</key>
	<dict>
		<key>Digest</key>
		_________________________
		<key>PartialDigest</key>
		_________________________
		<key>Trusted</key>
		<true />
	</dict>
	<key>KernelCache</key>
	<dict>
		<key>Digest</key>
		_________________________
		<key>PartialDigest</key>
		_________________________
		<key>Trusted</key>
		<true />
	</dict>
	<key>LLB</key>
	<dict>
		<key>BuildString</key>
		<string>_________________________</string>
		<key>PartialDigest</key>
		_________________________
	</dict>
	<key>RecoveryMode</key>
	<dict>
		<key>Digest</key>
		_________________________
		<key>PartialDigest</key>
		_________________________
		<key>Trusted</key>
		<true />
	</dict>
	<key>RestoreDeviceTree</key>
	<dict>
		<key>Digest</key>
		_________________________
		<key>PartialDigest</key>
		_________________________
		<key>Trusted</key>
		<true />
	</dict>
	<key>RestoreKernelCache</key>
	<dict>
		<key>Digest</key>
		_________________________
		<key>PartialDigest</key>
		_________________________
		<key>Trusted</key>
		<true />
	</dict>
	<key>RestoreLogo</key>
	<dict>
		<key>Digest</key>
		_________________________
		<key>PartialDigest</key>
		_________________________
		<key>Trusted</key>
		<true />
	</dict>
	<key>RestoreRamDisk</key>
	<dict>
		<key>Digest</key>
 		_________________________
		<key>PartialDigest</key>
		_________________________
		<key>Trusted</key>
		<true />
	</dict>
	<key>iBEC</key>
	<dict>
		<key>BuildString</key>
		<string>_________________________</string>
		<key>PartialDigest</key>
		_________________________
	</dict>
	<key>iBSS</key>
	<dict>
		<key>BuildString</key>
		<string>_________________________</string>
		<key>PartialDigest</key>
		_________________________
	</dict>
	<key>iBoot</key>
	<dict>
		<key>Digest</key>
 		_________________________
		<key>PartialDigest</key>
		_________________________
		<key>Trusted</key>
		<true />
	</dict>
</dict>
</plist>

The underlined values( _______ ) can be found from the BuildManifest.plist which is located inside a IPSW file.

Other parameters / open questions

Some parameters could have other values. Not all details are known.

  • action=2 in the request. What other values exist and what is their meaning?
  • STATUS=0&MESSAGE=SUCCESS in the answer. What other values exist?
  • ApProductionMode What does this mean? Is there a test environment?
  • ApSecurityDomain Meaning?
  • Trusted What is this for?
  • Full description of the above values for UniqueBuildID, Digest, PartialDigest and BuildString.
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