MonoTouch 二三事（二）
2013-02-26 更新 真机秒退问题，授权文件格式原来的不对。
接上篇。
把client.exe拖入ilspy后发现，授权是靠mac地址+磁盘序列号等信息，授权验证依赖了rsa签名，得了，咱没超级计算机，跑不出对应的私钥，只有直接该代码爆破了。
但是在改制前呢？我大概浏览了下client.exe的功能，并没有发现有关各种安装的相关代码，也就是说这个东西他只负责验证授权信息，并保存成授权文件到~/Library/MonoTouch/License.v2，验证授权成功就可以安装，验证授权失败那就停止安装。与把程序安装到哪儿，怎么安装并没有任何关系，那我们何不直接越过这个步骤呢？
别忘了他只是个安装前运行的脚本~
因为他是个PackageMaker制作的安装包，并不能直接删除我们要删除的preinstall这个脚本，那我们直接看monotouch.pkg里面的PackageInfo文件，
<pkg-info format-version="2" identifier="com.xamarin.monotouch.pkg" version="1" install-location="/Developer/MonoTouch" auth="root"> <payload installKBytes="254496" numberOfFiles="4425"/> <scripts> <preinstall file="./preinstall"/> <postinstall file="./postinstall"/> </scripts> </pkg-info>
一种方法是直接删除<preinstall file="./preinstall"/>这句，然后再次用PackageMaker打包，嗯，自从XCODE4.*以后这个打包工具从XCODE里面被Apple给移除了，想用的话得自己下载安装，我到下载页面用IE说什么也下载不下来，chrome倒是下载下来了，2KB。。。不下了。直接按照上面那个XML文件所给的安装位置，建立好目录
/Developer/MonoTouch
（注意这个目录在之前版本是安装XCODE后自动建立的，并且XCODE等开发工具也安装到此目录，但新版XCODE会直接安装到/Application/Xcode.app,导致此目录我们得手动创建）
并拷贝上文提到的Payload解压后备用的文件到其下，然后把postinstall这个安装后执行文件也拷贝到这个目录下，然后在终端下执行postinstall，OK，安装好了，
执行我们之前装的MonoDevelop，新建一个iPhone项目，编译模拟器版Debug，会发现如下图
无授权哦，看看是/Developer/MonoTouch/usr/bin/mtouch这个程序有问题，会验证授权。这个是mkbundle打包的，用之前的方法提取其托管程序集
我们得到一堆程序集，其中被我选中那几个是关键程序集，其他的都是Mono程序集，把mtouch.exe拖入ilspy，搜索Main方法，这时找到如下图的类
Main在我选中的类里面，这个程序集比较奇怪，Main在一个internal class MTouch里面，我们看看他的验证过程
Main调用了Main2
Main2里关于验证的是
View Code
bool show_help = false; bool show_version = false; bool generate_manifests = true; List<string> list2 = new List<string>(); List<string> references = new List<string>(); List<MTouch.Resource> res = new List<MTouch.Resource>(); string user_gcc_flags = null; string device_name = null; try { Activation activation = new Activation(Certificates.Server, Certificates.Client, null); License license = License.LoadFromFile(activation.Crypto, Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Personal), "Library/MonoTouch/License.v2")); if (Sys.Serial == null) { Console.Error.WriteLine("Invalid license. Please contact support@xamarin.com"); Environment.Exit(97); } MTouch.ComputeHashes(Sys.Serial, Sys.Mac); for (int i = 0; i < license.UserData.H1.Length; i++) { if (MTouch.H1[i] != license.UserData.H1[i]) { throw new Exception(); } } for (int j = 0; j < license.UserData.H2.Length; j++) { if (MTouch.H2[j] != license.UserData.H2[j]) { throw new Exception(); } } for (int k = 0; k < license.UserData.H3.Length; k++) { if (MTouch.H3[k] != license.UserData.H3[k]) { throw new Exception(); } } if (license.UserData.ProductVersion < 5) { throw new Exception(); } } catch (FileNotFoundException) { Console.Error.WriteLine("License file is missing. Please activate MonoTouch"); Environment.Exit(98); } catch (DirectoryNotFoundException) { Console.Error.WriteLine("License file is missing. Please activate MonoTouch"); Environment.Exit(98); } catch (Exception value) { Console.Error.WriteLine("Invalid license. Please reactivate MonoTouch"); if (MTouch.verbose > 2) { Console.WriteLine(value); } Environment.Exit(99); }
这下该修改程序集了，取消验证那段代码，得请出Reflector + reflexil.1.5插件
去掉相关li代码，并保持托管堆栈的平衡，也就是不用想原来的push和pop，然后另存为新程序集，再次打开
授权相关代码消失了。。嘎嘎
把所有解压的程序集包括[处理]后的mtouch.exe（除去Mono自带的系统程序集，需要哪个不需要哪个可以运行起来试试能不能执行），复制到
/Developer/MonoTouch/usr/bin/
这个目录，最终我复制了
Mono.Cecil.dll
Mono.Cecil.Mdb.dll
Mono.Touch.Client.dll
Mono.Touch.Common.dll
monotouch.dll
MonoTouch.Linker.dll
[处理]后的 mtouch.exe
到/Developer/MonoTouch/usr/bin/
因为MonoDevelop.IPhone这个MonoDevelop插件在项目编译时调用的是没有exe后缀的那个打包后的Mac原生程序，得让他执行我们的exe，在
/Developer/MonoTouch/usr/bin/
建立名为mtouch的bash脚本，替代原来的mtouch，内容如下：
#!/bin/sh # by BinSsy DIR=$(cd "$(dirname "$0")"; pwd) MONO_FRAMEWORK_PATH=/Library/Frameworks/Mono.framework/Versions/Current export DYLD_FALLBACK_LIBRARY_PATH="$DIR:$MONO_FRAMEWORK_PATH/lib:/lib:/usr/lib" export PATH="$MONO_FRAMEWORK_PATH/bin:$PATH" #Start mtouch.exe with args mono "$DIR/mtouch.exe" "$@"
ok再次编译通过，现在我们改成非模拟器编译，报错
No valid iPhone code signing keys found in keychain.
看来涉及签名啊，最终通过查看MonoDevelop.IPhone这个插件代码，发现成功编译需要有开发者证书这个证书的名称必须类似是
iPhone Developer: BinSys (822ED3R5M7)
这样以iPhone Developer开头的，按照http://hi.baidu.com/lyugb/item/87f2a0ec0a11ae3b86d9ded1教程建立一个证书，导出成p12文件，稍后在windows下要用
还有一个放在路径 ~/Library/MobileDevice/Provisioning Profiles/ 里面的以.mobileprovision结尾的设备预置配置文件。这个文件是个pkcs#7消息信封，
被苹果一个证书签名的，具体格式信息是在
签名前的内容是个xml文件，如下：
<?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> <!--苹果分配，用于保证应用包的唯一性，测试的可随便填写等长的--> <key>ApplicationIdentifierPrefix</key> <array> <string>3NZS985WC5</string> </array> <!--文件建立日期 UTC时间--> <key>CreationDate</key> <date>2011-01-20T06:31:45Z</date> <!--开发者证书公钥，二进制的东西，可以提取二进制保存成.cer文件，这个和之前建立的开发者证书必须一样--> <key>DeveloperCertificates</key> <array> <data> MIIFZzCCBE+gAwIBAgIICD+6XPu04HUwDQYJKoZIhvcNAQEFBQAwgZYxCzAJ BgNVBAYTAlVTMRMwEQYDVQQKDApBcHBsZSBJbmMuMSwwKgYDVQQLDCNBcHBs ZSBXb3JsZHdpZGUgRGV2ZWxvcGVyIFJlbGF0aW9uczFEMEIGA1UEAww7QXBw bGUgV29ybGR3aWRlIERldmVsb3BlciBSZWxhdGlvbnMgQ2VydGlmaWNhdGlv biBBdXRob3JpdHkwHhcNMTEwMTIwMDYyMTQxWhcNMTIwMTIwMDYyMTQxWjBb MRowGAYKCZImiZPyLGQBAQwKOTNFQTlMNDI5SjEwMC4GA1UEAwwnaVBob25l IERldmVsb3BlcjogU3VuIFBlbmcgKDgyMkVEM1I1TTcpMQswCQYDVQQGEwJD TjCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAJv6G9Q1VS+obG9S MeLRMkPHfv+jh05P98uIO+uyuOFU5bDDQYAgZLr2qcO90m4KTfwLT/PAbnTy PzHYfahTwotyk6yKJrKc+SMVND7MswPVZmHlfnjMWo3C5sVA0ED7PdGPC/eG diUPtUBv/08dDjgNmcCuPouqv37JEsh1wfDxsr9SEVBXpSCtuccZbE5EOjJd i20AYLH5zpBybvpRXKfFAqU66qIw4iKVzGd0kH+7QOa1t+Q/QuPiOyci4RVL FBbPz5MKBwZfMM4TVzy5Zx9vRxtLOabpcXJByEfBzsSowtPAZX6GP8uwqLK8 Of+KQOKSR5pbm+czi8vB2eBzAR8CAwEAAaOCAfEwggHtMB0GA1UdDgQWBBTc Z9iLUFFoFqjbwp0WDLo4n3sInjAMBgNVHRMBAf8EAjAAMB8GA1UdIwQYMBaA FIgnFwmpthhgi+zruvZHWcVSVKO3MIIBDwYDVR0gBIIBBjCCAQIwgf8GCSqG SIb3Y2QFATCB8TCBwwYIKwYBBQUHAgIwgbYMgbNSZWxpYW5jZSBvbiB0aGlz IGNlcnRpZmljYXRlIGJ5IGFueSBwYXJ0eSBhc3N1bWVzIGFjY2VwdGFuY2Ug b2YgdGhlIHRoZW4gYXBwbGljYWJsZSBzdGFuZGFyZCB0ZXJtcyBhbmQgY29u ZGl0aW9ucyBvZiB1c2UsIGNlcnRpZmljYXRlIHBvbGljeSBhbmQgY2VydGlm aWNhdGlvbiBwcmFjdGljZSBzdGF0ZW1lbnRzLjApBggrBgEFBQcCARYdaHR0 cDovL3d3dy5hcHBsZS5jb20vYXBwbGVjYS8wTQYDVR0fBEYwRDBCoECgPoY8 aHR0cDovL2RldmVsb3Blci5hcHBsZS5jb20vY2VydGlmaWNhdGlvbmF1dGhv cml0eS93d2RyY2EuY3JsMA4GA1UdDwEB/wQEAwIHgDAWBgNVHSUBAf8EDDAK BggrBgEFBQcDAzATBgoqhkiG92NkBgECAQH/BAIFADANBgkqhkiG9w0BAQUF AAOCAQEAAmwcHIVQCv0+oUU2MBMzVYFG0U+dCKgSzpM6FER/ysuzQeqVoTSl KflbfVCIVdb6uIOFHymxfv50yyiV6zRF3Y59NuTUaln+Q/wec+OuwxHxMWab NA/mAitotXKfRCAI9ZZyA84dVOuJmEFn6txcNSmiGczuRBAHltwVBrRDU/fj +Bj8RWSyYQajFxm+7wGqDl6jKttNuG1vYPWis4+3mDFRoXBRwX4kpPJtIbn9 P0Xv16gBNiJ3B5LBk9DlRsNK/NOLmNlPpRi8NBAtXOeaK+t/UDvnVnX3Xu9Q fyRynjHckY5L4wpLOt7xDZgUS5VBEh7u2+AqYjSvL+OLc9yHjg== </data> </array> <!--应用的权利限制，保持默认吧--> <key>Entitlements</key> <dict> <key>application-identifier</key> <string>3NZS985WC5.*</string> <key>get-task-allow</key> <true/> <key>keychain-access-groups</key> <array> <string>3NZS985WC5.*</string> </array> </dict> <!--过期日期，这个必须保证没有过期，否则MonoDevelop的iPhone插件不认 UTC时间--> <key>ExpirationDate</key> <date>2011-04-20T06:31:45Z</date> <!--配置的名称，自己起一个--> <key>Name</key> <string>Example Provision</string> <!--这个就是设备的UDID列表，如果这个是正规从Apple下载的文件，下面就是你的测试设备的UDID--> <key>ProvisionedDevices</key> <array> <string>f9d82b1e14a7becc39cf468a3744d2d927c64ac8</string> </array> <!--此处注意，应该是iOS新特性，网上能找到的所有预置配置文件都无此项，导致新版monotouch MonoDevelop 的 iPhone插件编译异常 空引用异常--> <key>TeamIdentifier</key> <array> <string>3NZS985WC5</string> </array> <!--用途未知--> <key>TimeToLive</key> <integer>90</integer> <!--配置文件唯一标识，随机guid--> <key>UUID</key> <string>8C9691AC-9ABD-49CD-A69A-0DB86319615B</string> <!--固定--> <key>Version</key> <integer>1</integer> </dict> </plist>
这个文件正规来说是从Apple的开发者计划的页面下载的，但我现在没有开发者帐号，所以自己产生一个，包上面xml保存成utf8编码的xml文件，然后下面代码：
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.IO; using System.Security.Cryptography.Pkcs; using System.Security.Cryptography.X509Certificates; using MonoDevelop.MacDev.Plist; using System.Xml; namespace makemp { class Program { static void Main(string[] args) { //从MAC导出的证书文件 和导出时设置的密码 X509Certificate2 signgercert = new X509Certificate2(@"my.p12", "*****"); PlistDocument pd = new PlistDocument(); //模版文件 pd.LoadFromXmlFile(@"mobileprovision_Template.xml"); //ApplicationIdentifierPrefix PlistDictionary root_dic = pd.Root as PlistDictionary; //PlistArray ApplicationIdentifierPrefix_s = root_dic["ApplicationIdentifierPrefix"] as PlistArray; //PlistString ApplicationIdentifierPrefix_1 = ApplicationIdentifierPrefix_s.Value.FirstOrDefault() as PlistString; //ApplicationIdentifierPrefix_1.Value = "123456789"; //CreationDate PlistDate CreationDate = root_dic["CreationDate"] as PlistDate; CreationDate.Value = DateTime.Now; //DeveloperCertificates PlistArray DeveloperCertificates_s = root_dic["DeveloperCertificates"] as PlistArray; PlistData DeveloperCertificates_1 = DeveloperCertificates_s.Value.FirstOrDefault() as PlistData; DeveloperCertificates_1.Value = signgercert.Export(X509ContentType.Cert); //Entitlements //ExpirationDate PlistDate ExpirationDate = root_dic["ExpirationDate"] as PlistDate; ExpirationDate.Value = DateTime.Now.AddYears(10); //Name PlistString Name = root_dic["Name"] as PlistString; Name.Value = "TestApp"; //ProvisionedDevices PlistArray ProvisionedDevices_s = root_dic["ProvisionedDevices"] as PlistArray; PlistString ProvisionedDevices_1 = ProvisionedDevices_s.Value.FirstOrDefault() as PlistString; ProvisionedDevices_1.Value = "e5fb5e41110b57ad370e0725610b7a9ba31df40e"; //UUID PlistString UUID = root_dic["UUID"] as PlistString; UUID.Value = Guid.NewGuid().ToString().ToUpper(); //pd.WriteToFile("aa.xml"); MemoryStream ms = new MemoryStream(); using (XmlTextWriter xmlTextWriter = new XmlTextWriter(ms, UpperCaseUTF8Encoding.UpperCaseUTF8)) { xmlTextWriter.Indentation = 1; xmlTextWriter.IndentChar = '\t'; xmlTextWriter.Formatting = Formatting.Indented; pd.Write(xmlTextWriter); } File.WriteAllBytes("my.mobileprovision", Encode(Encoding.UTF8.GetString(ms.GetBuffer()), signgercert)); } static string Decode(byte[] bytes) { SignedCms sc = new SignedCms(); sc.Decode(bytes); //foreach (X509Certificate2 cert in sc.Certificates) //{ // Console.WriteLine(cert.Thumbprint); // File.WriteAllBytes(string.Format("Thumbprint_{0}.cer", cert.Thumbprint), cert.Export(X509ContentType.Cert)); //} return Encoding.UTF8.GetString(sc.ContentInfo.Content); } static byte[] Encode(string source, X509Certificate2 cert) { byte[] sourceBytes = Encoding.UTF8.GetBytes(source); CmsSigner cs = new CmsSigner(cert); cs.IncludeOption = X509IncludeOption.WholeChain; ContentInfo ci = new ContentInfo(sourceBytes); SignedCms sc2 = new SignedCms(ci, false); sc2.ComputeSignature(cs); return sc2.Encode(); } } }
详细代码本文后边有打包。那个证书是从mac导出的。
这样生成了与我们自己的开发者证书想对应的.mobileprovision文件，把他放到
~/Library/MobileDevice/Provisioning Profiles/
目录里。
真机编译，如下：
Building: tt1 (Debug|iPhone) Detecting signing identity... Provisioning profile: "TestApp" (07BBFA54-544E-4BB3-83A5-0C5832E25285) Signing Identity: "iPhone Developer: BinSys (822ED3R5M7)" App ID: "3NZS985WC5.tt1" Performing main compilation... /Developer/MonoTouch/usr/bin/smcs /noconfig "/out:/Users/binsys/Projects/tt1/tt1/bin/iPhone/Debug/tt1.exe" "/r:/Developer/MonoTouch/usr/lib/mono/2.1/System.dll" "/r:/Developer/MonoTouch/usr/lib/mono/2.1/System.Xml.dll" "/r:/Developer/MonoTouch/usr/lib/mono/2.1/System.Core.dll" "/r:/Developer/MonoTouch/usr/lib/mono/2.1/monotouch.dll" /nologo /warn:4 /debug:full /optimize- /codepage:utf8 "/define:DEBUG" /t:exe "/Users/binsys/Projects/tt1/tt1/Main.cs" "/Users/binsys/Projects/tt1/tt1/AppDelegate.cs" "/Users/binsys/Projects/tt1/tt1/tt1ViewController.cs" "/Users/binsys/Projects/tt1/tt1/tt1ViewController.designer.cs" Compilation succeeded - 3 warning(s) /Users/binsys/Projects/tt1/tt1/tt1ViewController.cs(30,38): warning CS0672: Member `tt1.tt1ViewController.ViewDidUnload()' overrides obsolete member `MonoTouch.UIKit.UIViewController.ViewDidUnload()'. Add the Obsolete attribute to `tt1.tt1ViewController.ViewDidUnload()' /Developer/MonoTouch/usr/lib/mono/2.1/monotouch.dll (Location of the symbol related to previous warning) /Users/binsys/Projects/tt1/tt1/tt1ViewController.cs(42,38): warning CS0672: Member `tt1.tt1ViewController.ShouldAutorotateToInterfaceOrientation(MonoTouch.UIKit.UIInterfaceOrientation)' overrides obsolete member `MonoTouch.UIKit.UIViewController.ShouldAutorotateToInterfaceOrientation(MonoTouch.UIKit.UIInterfaceOrientation)'. Add the Obsolete attribute to `tt1.tt1ViewController.ShouldAutorotateToInterfaceOrientation(MonoTouch.UIKit.UIInterfaceOrientation)' /Developer/MonoTouch/usr/lib/mono/2.1/monotouch.dll (Location of the symbol related to previous warning) /Users/binsys/Projects/tt1/tt1/tt1ViewController.cs(32,30): warning CS0618: `MonoTouch.UIKit.UIViewController.ViewDidUnload()' is obsolete: `Deprecated in iOS 6.0' Compiling interface definitions /Applications/Xcode.app/Contents/Developer/usr/bin/ibtool --errors --warnings --notices --output-format human-readable-text --compile "/Users/binsys/Projects/tt1/tt1/bin/iPhone/Debug/tt1.app/tt1ViewController.nib" "/Users/binsys/Projects/tt1/tt1/tt1ViewController.xib" --sdk "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk" 2012-11-29 15:27:41.683 Interface Builder Cocoa Touch Tool[345:14603] CFPreferences: user home directory at file://localhost/Users/binsys/Library/Application%20Support/iPhone%20Simulator/User/ is unavailable. User domains will be volatile. 构建完成 --0 个错误, 3 个警告 Compiling to native code /Developer/MonoTouch/usr/bin/mtouch -sdkroot "/Applications/Xcode.app/Contents/Developer" -v --cache "/Users/binsys/Projects/tt1/tt1/obj/Debug/mtouch-cache" --nomanifest --nosign -dev "/Users/binsys/Projects/tt1/tt1/bin/iPhone/Debug/tt1.app" -r "/Developer/MonoTouch/usr/lib/mono/2.1/System.dll" -r "/Developer/MonoTouch/usr/lib/mono/2.1/System.Xml.dll" -r "/Developer/MonoTouch/usr/lib/mono/2.1/System.Core.dll" -r "/Developer/MonoTouch/usr/lib/mono/2.1/monotouch.dll" -debug -profiling -linksdkonly -sdk "6.0" --abi=armv7 "/Users/binsys/Projects/tt1/tt1/bin/iPhone/Debug/tt1.exe" MonoTouch version 6.0.6 using framework: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk Copied /Users/binsys/Projects/tt1/tt1/bin/iPhone/Debug/tt1.exe to /Users/binsys/Projects/tt1/tt1/bin/iPhone/Debug/tt1.app/tt1.exe Copied /Developer/MonoTouch/usr/lib/mono/2.1/mscorlib.dll to /Users/binsys/Projects/tt1/tt1/bin/iPhone/Debug/tt1.app/mscorlib.dll Copied /Developer/MonoTouch/usr/lib/mono/2.1/monotouch.dll to /Users/binsys/Projects/tt1/tt1/bin/iPhone/Debug/tt1.app/monotouch.dll Copied /Developer/MonoTouch/usr/lib/mono/2.1/System.Core.dll to /Users/binsys/Projects/tt1/tt1/bin/iPhone/Debug/tt1.app/System.Core.dll Copied /Developer/MonoTouch/usr/lib/mono/2.1/System.dll to /Users/binsys/Projects/tt1/tt1/bin/iPhone/Debug/tt1.app/System.dll Copied /Developer/MonoTouch/usr/lib/mono/2.1/Mono.Security.dll to /Users/binsys/Projects/tt1/tt1/bin/iPhone/Debug/tt1.app/Mono.Security.dll Copied /Developer/MonoTouch/usr/lib/mono/2.1/System.Xml.dll to /Users/binsys/Projects/tt1/tt1/bin/iPhone/Debug/tt1.app/System.Xml.dll Linking SDK only for assembly /Users/binsys/Projects/tt1/tt1/bin/iPhone/Debug/tt1.exe into /Users/binsys/Projects/tt1/tt1/bin/iPhone/Debug/tt1.app MONO_PATH=/Users/binsys/Projects/tt1/tt1/bin/iPhone/Debug/tt1.app /Developer/MonoTouch/usr/bin/arm-darwin-mono --debug --aot=mtriple=armv7-darwin,full,static,asmonly,direct-icalls,no-direct-calls,iphone-abi,outfile=/var/folders/gn/rs7j2w411rqc159nhqc2rddc0000gn/T/tmp6163d343.tmp/System.Core.dll.armv7.s "/Users/binsys/Projects/tt1/tt1/bin/iPhone/Debug/tt1.app/System.Core.dll" AOT Compilation exited with code 4, command: MONO_PATH=/Users/binsys/Projects/tt1/tt1/bin/iPhone/Debug/tt1.app /Developer/MonoTouch/usr/bin/arm-darwin-mono --debug --aot=mtriple=armv7-darwin,full,static,asmonly,direct-icalls,no-direct-calls,iphone-abi,outfile=/var/folders/gn/rs7j2w411rqc159nhqc2rddc0000gn/T/tmp6163d343.tmp/System.Core.dll.armv7.s "/Users/binsys/Projects/tt1/tt1/bin/iPhone/Debug/tt1.app/System.Core.dll" MonoTouch license could not be found. Please activate your MonoTouch installation. error MT3001: Could not AOT the assembly '/Users/binsys/Projects/tt1/tt1/bin/iPhone/Debug/tt1.app/System.Core.dll' ---------------------- 完成 ---------------------- Project does not have bundle identifier specified. Generated 'tt1' to match an installed provisioning profile. 构建：1 个错误, 4 个警告
编译出错。估计拉下哪个文件没[处理]，看MonoDevelop.IPhone代码，可以知道其根据编译参数调用了/Developer/MonoTouch/usr/bin/目录下的arm-darwin-mono和arm-darwin-mono-sgen这两个原生苹果程序。全是Native代码，没发现什么经过打包的痕迹。
嗯，因为看编译选项发现我们没有选中sgen这个垃圾回收器，所以这此编译调用的应该是arm-darwin-mono这个AOT编译器，用IDA打开等待分析完毕（文件大，有点儿慢）
发现验证授权时打开了~/Library/MonoTouch/License.v2 这个文件，看了下，也是验证了RSA sha1签名，我们通过把三个在破解领域爆破方法里的关键跳jnz改成nop，（arm-darwin-mono-sgen 同样处理）并伪造一个特定格式的 License.v2文件，这个格式是一个全0的二进制文件，长度为60+N+1+128，60字节是三个长度为20的hash，N任意，1为一个特定值，必须大于1，后边128字节为一个二进制文件被1024位rsa key用sha1算法签名后产生的签名指纹的数据长度，128字节，我么写全0吧。这样把这个文件放到指定目录，把在windows里修改过的两个程序放到mac替换原来的，编译。。。。。各种通过，各种ipa都产生了，剩下的就是把ipa放到越狱的设备里了，进行性能测试。
这个授权文件格式如下：
View Code
string IOPlatformSerialNumber = "VMWVk3P/wPmJkRIwb5ycu1EQw"; string IOMACAddress = "00:0c:29:ed:44:43"; GetLicense(Salt, IOPlatformSerialNumber, IOMACAddress); private static void GetLicense(byte[] salt, string IOPlatformSerialNumber, string IOMACAddress) { byte[] IOPlatformSerialNumber_Bytes = System.Text.Encoding.UTF8.GetBytes(IOPlatformSerialNumber); byte[] IOMACAddress_Bytes = System.Text.Encoding.UTF8.GetBytes(IOMACAddress); System.IO.MemoryStream ms = new System.IO.MemoryStream(IOPlatformSerialNumber_Bytes.Length + IOMACAddress_Bytes.Length + salt.Length); System.Security.Cryptography.HashAlgorithm alg = System.Security.Cryptography.SHA1.Create(); byte[] hash1 = GetHash(alg, ms, IOPlatformSerialNumber_Bytes, IOMACAddress_Bytes, salt); byte[] hash2 = GetHash(alg, ms, IOPlatformSerialNumber_Bytes, salt, IOMACAddress_Bytes); byte[] hash3 = GetHash(alg, ms, salt, IOPlatformSerialNumber_Bytes, IOMACAddress_Bytes); byte[] LicenseHashs = new byte[60]; Array.Copy(hash1, 00, LicenseHashs, 00, 5); Array.Copy(hash2, 00, LicenseHashs, 05, 5); Array.Copy(hash3, 00, LicenseHashs, 10, 5); Array.Copy(hash1, 05, LicenseHashs, 15, 5); Array.Copy(hash2, 05, LicenseHashs, 20, 5); Array.Copy(hash3, 05, LicenseHashs, 25, 5); Array.Copy(hash1, 10, LicenseHashs, 30, 5); Array.Copy(hash2, 10, LicenseHashs, 35, 5); Array.Copy(hash3, 10, LicenseHashs, 40, 5); Array.Copy(hash1, 15, LicenseHashs, 45, 5); Array.Copy(hash2, 15, LicenseHashs, 50, 5); Array.Copy(hash3, 15, LicenseHashs, 55, 5); byte[] bytesPadding = new byte[400]; for (int index = 0; index < 400; index++) { bytesPadding[index] = 6; } byte[] ret; using (MemoryStream msff = new MemoryStream()) { msff.Write(LicenseHashs, 0, LicenseHashs.Length); msff.Write(bytesPadding, 0, bytesPadding.Length); ret = msff.GetBuffer(); msff.Close(); } File.WriteAllBytes("License.v2", ret); } private static byte[] GetHash(System.Security.Cryptography.HashAlgorithm alg, System.IO.MemoryStream ms, byte[] b1, byte[] b2, byte[] b3) { ms.Position = 0L; ms.SetLength(0L); ms.Write(b1, 0, b1.Length); ms.Write(b2, 0, b2.Length); ms.Write(b3, 0, b3.Length); return alg.ComputeHash(ms.GetBuffer(), 0, (int)ms.Length); }
至于这个 Salt这个数组，大家动手去找吧，自己动手丰衣足食嘛。。。嘿嘿， 就在mtouch那几个程序集里，是常量，我就不提供了，省的影响较大然后出事儿。 真心想用的不差这几步，看看就走的就别试了，整的乱飞就不好了。
注意，arm-darwin-mono和sgen这两个原生程序只验证了授权文件的前60个字节和授权文件从后向前数第128个字节大于0， 没有检查这个授权文件的数字签名，所以我们省事了，而mtouch这个验证了数字签名，所以呢，咱得处理它，把数字签名验证相关咔嚓掉。
下一篇继续开始测试之旅。
附件：
https://files.cnblogs.com/binsys/20121129_MonoTouchCrack.7z
