// Determines whether the given OID is already registered.
private bool IsRegistered(string oid)
{
IntPtr info;
WindowsApi.CRYPT_OID_INFO oidInfo;
info = WindowsApi.CryptFindOIDInfo(WindowsApi.CRYPT_OID_INFO_OID_KEY, oid, WindowsApi.CRYPT_OID_DISABLE_SEARCH_DS_FLAG);
if (!info.Equals(IntPtr.Zero))
{
oidInfo = new WindowsApi.CRYPT_OID_INFO();
Marshal.PtrToStructure(info, oidInfo);
using (RegistryKey oidKey = Registry.LocalMachine.OpenSubKey(string.Format(@"Software\Microsoft\Cryptography\OID\EncodingType 0\CryptDllFindOIDInfo\{0}!{1}", oidInfo.pszOID, oidInfo.dwGroupId)))
{
if ((object)oidKey != null)
{
return(true);
}
}
using (RegistryKey oidKey = Registry.LocalMachine.OpenSubKey(string.Format(@"Software\Wow6432Node\Microsoft\Cryptography\OID\EncodingType 0\CryptDllFindOIDInfo\{0}!{1}", oidInfo.pszOID, oidInfo.dwGroupId)))
{
if ((object)oidKey != null)
{
return(true);
}
}
}
return(false);
}
// Registers the given OID.
private void RegisterOID(string oid)
{
IntPtr info;
WindowsApi.CRYPT_OID_INFO oidInfo;
// Look up the OID
info = WindowsApi.CryptFindOIDInfo(WindowsApi.CRYPT_OID_INFO_OID_KEY, oid, WindowsApi.CRYPT_OID_DISABLE_SEARCH_DS_FLAG);
if (!info.Equals(IntPtr.Zero))
{
// Register the OID
oidInfo = new WindowsApi.CRYPT_OID_INFO();
Marshal.PtrToStructure(info, oidInfo);
WindowsApi.CryptRegisterOIDInfo(info, WindowsApi.CRYPT_INSTALL_OID_INFO_BEFORE_FLAG);
// Add the name of the OID to the registry since the .NET libraries lookup by name
using (RegistryKey registryKey = Registry.LocalMachine.OpenSubKey(string.Format(@"Software\Wow6432Node\Microsoft\Cryptography\OID\EncodingType 0\CryptDllFindOIDInfo\{0}!{1}", oidInfo.pszOID, oidInfo.dwGroupId), true))
{
if ((object)registryKey != null)
{
registryKey.SetValue("Name", oidInfo.pszOID);
}
}
using (RegistryKey registryKey = Registry.LocalMachine.OpenSubKey(string.Format(@"Software\Microsoft\Cryptography\OID\EncodingType 0\CryptDllFindOIDInfo\{0}!{1}", oidInfo.pszOID, oidInfo.dwGroupId), true))
{
if ((object)registryKey != null)
{
registryKey.SetValue("Name", oidInfo.pszOID);
}
}
}
}
// Determines whether the given OID is already registered.
private bool IsRegistered(string oid)
{
IntPtr info;
WindowsApi.CRYPT_OID_INFO oidInfo;
info = WindowsApi.CryptFindOIDInfo(WindowsApi.CRYPT_OID_INFO_OID_KEY, oid, WindowsApi.CRYPT_OID_DISABLE_SEARCH_DS_FLAG);
if (!info.Equals(IntPtr.Zero))
{
oidInfo = new WindowsApi.CRYPT_OID_INFO();
Marshal.PtrToStructure(info, oidInfo);
using (RegistryKey oidKey = Registry.LocalMachine.OpenSubKey(string.Format(@"Software\Microsoft\Cryptography\OID\EncodingType 0\CryptDllFindOIDInfo\{0}!{1}", oidInfo.pszOID, oidInfo.dwGroupId)))
{
if ((object)oidKey != null)
return true;
}
using (RegistryKey oidKey = Registry.LocalMachine.OpenSubKey(string.Format(@"Software\Wow6432Node\Microsoft\Cryptography\OID\EncodingType 0\CryptDllFindOIDInfo\{0}!{1}", oidInfo.pszOID, oidInfo.dwGroupId)))
{
if ((object)oidKey != null)
return true;
}
}
return false;
}
// Registers the given OID.
private void RegisterOID(string oid)
{
IntPtr info;
WindowsApi.CRYPT_OID_INFO oidInfo;
// Look up the OID
info = WindowsApi.CryptFindOIDInfo(WindowsApi.CRYPT_OID_INFO_OID_KEY, oid, WindowsApi.CRYPT_OID_DISABLE_SEARCH_DS_FLAG);
if (!info.Equals(IntPtr.Zero))
{
// Register the OID
oidInfo = new WindowsApi.CRYPT_OID_INFO();
Marshal.PtrToStructure(info, oidInfo);
WindowsApi.CryptRegisterOIDInfo(info, WindowsApi.CRYPT_INSTALL_OID_INFO_BEFORE_FLAG);
// Add the name of the OID to the registry since the .NET libraries lookup by name
using (RegistryKey registryKey = Registry.LocalMachine.OpenSubKey(string.Format(@"Software\Wow6432Node\Microsoft\Cryptography\OID\EncodingType 0\CryptDllFindOIDInfo\{0}!{1}", oidInfo.pszOID, oidInfo.dwGroupId), true))
{
if ((object)registryKey != null)
registryKey.SetValue("Name", oidInfo.pszOID);
}
using (RegistryKey registryKey = Registry.LocalMachine.OpenSubKey(string.Format(@"Software\Microsoft\Cryptography\OID\EncodingType 0\CryptDllFindOIDInfo\{0}!{1}", oidInfo.pszOID, oidInfo.dwGroupId), true))
{
if ((object)registryKey != null)
registryKey.SetValue("Name", oidInfo.pszOID);
}
}
}
