[英]Private key of certificate in certificate-store not readable
我想我和这个人有同样的问题,但我没有他/她那么幸运,因为提供的解决方案对我不起作用。
提供的解决方案在C:\\ProgramData\\Microsoft\\Crypto\\RSA\\MachineKeys
( 不在子目录中)和C:\\Users\\[Username]\\AppData\\Roaming\\Microsoft\\Crypto\\RSA
(和子目录)中查找文件但是因为我希望安装程序将应用程序安装到所有用户,所以自定义操作在SYSTEM
-User下运行,这导致实际在C:\\ProgramData\\Application Data\\Microsoft\\Crypto\\RSA\\S-1-5-18
。
当以管理员(右键单击 - >以管理员身份运行)运行“普通”应用程序执行完全相同的代码时,将在C:\\Users\\[Username]\\AppData\\Roaming\\Microsoft\\Crypto\\RSA\\S-1-5-21-1154405193-2177794320-4133247715-1000
创建一个文件C:\\Users\\[Username]\\AppData\\Roaming\\Microsoft\\Crypto\\RSA\\S-1-5-21-1154405193-2177794320-4133247715-1000
。
使用WIX自定义操作生成的证书似乎没有私钥(“ 密钥集不存在 ”),而“正常”应用程序生成的证书具有。
在查看文件的权限时,它们似乎没问题,即使它们不同(工作者确实包括SYSTEM
用户),即使将SYSTEM
一个添加到(“非工作”)文件后我也无法在这里读取私钥,同样的错误。
然后我使用FindPrivateKey工具找到相应的文件,但我得到的是"Unable to obtain private key file name"
。
好的,这里有什么? Windows在哪里存储SYSTEM
用户存储的证书的私钥? 也许没有创建任何私钥文件? 为什么?
通过google几乎所有的东西我得到了一个解决方案...据我所知,有一些事情要做:
X509Certificate2
因此,最终的代码是:
X509Certificate2 nonPersistentCert = CreateACertSomehow();
// this is only required since there's no constructor for X509Certificate2 that uses X509KeyStorageFlags but a password
// so we create a tmp password, which is not reqired to be secure since it's only used in memory
// and the private key will be included (plain) in the final cert anyway
const string TMP_PFX_PASSWORD = "password";
// create a pfx in memory ...
byte[] nonPersistentCertPfxBytes = nonPersistentCert.Export(X509ContentType.Pfx, TMP_PFX_PASSWORD);
// ... to get an X509Certificate2 object with the X509KeyStorageFlags.PersistKeySet flag set
X509Certificate2 serverCert = new X509Certificate2(nonPersistentCertPfxBytes, TMP_PFX_PASSWORD,
X509KeyStorageFlags.PersistKeySet | X509KeyStorageFlags.MachineKeySet | X509KeyStorageFlags.Exportable); // use X509KeyStorageFlags.Exportable only if you want the private key to tbe exportable
// get the private key, which currently only the SYSTEM-User has access to
RSACryptoServiceProvider systemUserOnlyReadablePrivateKey = serverCert.PrivateKey as RSACryptoServiceProvider;
// create cspParameters
CspParameters cspParameters = new CspParameters(systemUserOnlyReadablePrivateKey.CspKeyContainerInfo.ProviderType,
systemUserOnlyReadablePrivateKey.CspKeyContainerInfo.ProviderName,
systemUserOnlyReadablePrivateKey.CspKeyContainerInfo.KeyContainerName)
{
// CspProviderFlags.UseArchivableKey means the key is exportable, if you don't want that use CspProviderFlags.UseExistingKey instead
Flags = CspProviderFlags.UseMachineKeyStore | CspProviderFlags.UseArchivableKey,
CryptoKeySecurity = systemUserOnlyReadablePrivateKey.CspKeyContainerInfo.CryptoKeySecurity
};
// add the access rules
cspParameters.CryptoKeySecurity.AddAccessRule(new CryptoKeyAccessRule(new SecurityIdentifier(WellKnownSidType.AuthenticatedUserSid, null), CryptoKeyRights.GenericRead, AccessControlType.Allow));
// create a new RSACryptoServiceProvider from the cspParameters and assign that as the private key
RSACryptoServiceProvider allUsersReadablePrivateKey = new RSACryptoServiceProvider(cspParameters);
serverCert.PrivateKey = allUsersReadablePrivateKey;
// finally place it into the cert store
X509Store rootStore = new X509Store(StoreName.My, StoreLocation.LocalMachine);
rootStore.Open(OpenFlags.ReadWrite);
rootStore.Add(serverCert);
rootStore.Close();
// :)
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