internal static void ImportCspBlobHelper(CspAlgorithmType keyType, byte[] keyBlob, bool publicOnly, ref CspParameters parameters, bool randomKeyContainer, ref SafeProvHandle safeProvHandle, ref SafeKeyHandle safeKeyHandle)
{
if (safeKeyHandle != null && !safeKeyHandle.IsClosed)
{
safeKeyHandle.Dispose();
}
safeKeyHandle = SafeKeyHandle.InvalidHandle;
if (publicOnly)
{
parameters.KeyNumber = Utils._ImportCspBlob(keyBlob, keyType == CspAlgorithmType.Dss ? Utils.StaticDssProvHandle : Utils.StaticProvHandle, CspProviderFlags.NoFlags, ref safeKeyHandle);
}
else
{
if (!CompatibilitySwitches.IsAppEarlierThanWindowsPhone8)
{
KeyContainerPermission containerPermission = new KeyContainerPermission(KeyContainerPermissionFlags.NoFlags);
KeyContainerPermissionAccessEntry accessEntry = new KeyContainerPermissionAccessEntry(parameters, KeyContainerPermissionFlags.Import);
containerPermission.AccessEntries.Add(accessEntry);
containerPermission.Demand();
}
if (safeProvHandle == null)
{
safeProvHandle = Utils.CreateProvHandle(parameters, randomKeyContainer);
}
parameters.KeyNumber = Utils._ImportCspBlob(keyBlob, safeProvHandle, parameters.Flags, ref safeKeyHandle);
}
}
[System.Security.SecuritySafeCritical] // auto-generated
public override void ImportParameters(DSAParameters parameters)
{
DSACspObject dsaCspObject = DSAStructToObject(parameters);
// Free the current key handle
if (_safeKeyHandle != null && !_safeKeyHandle.IsClosed)
{
_safeKeyHandle.Dispose();
}
_safeKeyHandle = SafeKeyHandle.InvalidHandle;
if (IsPublic(parameters))
{
// Use our CRYPT_VERIFYCONTEXT handle, CRYPT_EXPORTABLE is not applicable to public only keys, so pass false
Utils._ImportKey(Utils.StaticDssProvHandle, Constants.CALG_DSS_SIGN, (CspProviderFlags)0, dsaCspObject, ref _safeKeyHandle);
}
else
{
KeyContainerPermission kp = new KeyContainerPermission(KeyContainerPermissionFlags.NoFlags);
KeyContainerPermissionAccessEntry entry = new KeyContainerPermissionAccessEntry(_parameters, KeyContainerPermissionFlags.Import);
kp.AccessEntries.Add(entry);
kp.Demand();
if (_safeProvHandle == null)
{
_safeProvHandle = Utils.CreateProvHandle(_parameters, _randomKeyContainer);
}
// Now, import the key into the CSP; _ImportKey will check for failures.
Utils._ImportKey(_safeProvHandle, Constants.CALG_DSS_SIGN, _parameters.Flags, dsaCspObject, ref _safeKeyHandle);
}
}
public override void ImportParameters(DSAParameters parameters)
{
DSACspObject cspObject = DSAStructToObject(parameters);
if ((this._safeKeyHandle != null) && !this._safeKeyHandle.IsClosed)
{
this._safeKeyHandle.Dispose();
}
this._safeKeyHandle = SafeKeyHandle.InvalidHandle;
if (IsPublic(parameters))
{
Utils._ImportKey(Utils.StaticDssProvHandle, 0x2200, CspProviderFlags.NoFlags, cspObject, ref this._safeKeyHandle);
}
else
{
KeyContainerPermission permission = new KeyContainerPermission(KeyContainerPermissionFlags.NoFlags);
KeyContainerPermissionAccessEntry accessEntry = new KeyContainerPermissionAccessEntry(this._parameters, KeyContainerPermissionFlags.Import);
permission.AccessEntries.Add(accessEntry);
permission.Demand();
if (this._safeProvHandle == null)
{
this._safeProvHandle = Utils.CreateProvHandle(this._parameters, this._randomKeyContainer);
}
Utils._ImportKey(this._safeProvHandle, 0x2200, this._parameters.Flags, cspObject, ref this._safeKeyHandle);
}
}
public override void ImportParameters(RSAParameters parameters)
{
if (this._safeKeyHandle != null && !this._safeKeyHandle.IsClosed)
{
this._safeKeyHandle.Dispose();
this._safeKeyHandle = (SafeKeyHandle)null;
}
RSACspObject @object = RSACryptoServiceProvider.RSAStructToObject(parameters);
this._safeKeyHandle = SafeKeyHandle.InvalidHandle;
if (RSACryptoServiceProvider.IsPublic(parameters))
{
Utils._ImportKey(Utils.StaticProvHandle, 41984, CspProviderFlags.NoFlags, (object)@object, ref this._safeKeyHandle);
}
else
{
if (!CompatibilitySwitches.IsAppEarlierThanWindowsPhone8)
{
KeyContainerPermission containerPermission = new KeyContainerPermission(KeyContainerPermissionFlags.NoFlags);
KeyContainerPermissionAccessEntry accessEntry = new KeyContainerPermissionAccessEntry(this._parameters, KeyContainerPermissionFlags.Import);
containerPermission.AccessEntries.Add(accessEntry);
containerPermission.Demand();
}
if (this._safeProvHandle == null)
{
this._safeProvHandle = Utils.CreateProvHandle(this._parameters, this._randomKeyContainer);
}
Utils._ImportKey(this._safeProvHandle, 41984, this._parameters.Flags, (object)@object, ref this._safeKeyHandle);
}
}
internal unsafe static void GetKeyPairHelper(CspAlgorithmType keyType, CspParameters parameters, bool randomKeyContainer, int dwKeySize, ref SafeProvHandle safeProvHandle, ref SafeKeyHandle safeKeyHandle)
{
SafeProvHandle safeProvHandle2 = Utils.CreateProvHandle(parameters, randomKeyContainer);
if (parameters.CryptoKeySecurity != null)
{
KeyContainerPermission keyContainerPermission = new KeyContainerPermission(KeyContainerPermissionFlags.NoFlags);
KeyContainerPermissionAccessEntry accessEntry = new KeyContainerPermissionAccessEntry(parameters, KeyContainerPermissionFlags.ChangeAcl);
keyContainerPermission.AccessEntries.Add(accessEntry);
keyContainerPermission.Demand();
Utils.SetKeySetSecurityInfo(safeProvHandle2, parameters.CryptoKeySecurity, parameters.CryptoKeySecurity.ChangedAccessControlSections);
}
if (parameters.ParentWindowHandle != IntPtr.Zero)
{
IntPtr parentWindowHandle = parameters.ParentWindowHandle;
IntPtr pbData = parentWindowHandle;
if (!AppContextSwitches.DoNotAddrOfCspParentWindowHandle)
{
pbData = new IntPtr((void *)(&parentWindowHandle));
}
Utils.SetProviderParameter(safeProvHandle2, parameters.KeyNumber, 10U, pbData);
}
else if (parameters.KeyPassword != null)
{
IntPtr intPtr = Marshal.SecureStringToCoTaskMemAnsi(parameters.KeyPassword);
try
{
Utils.SetProviderParameter(safeProvHandle2, parameters.KeyNumber, 11U, intPtr);
}
finally
{
if (intPtr != IntPtr.Zero)
{
Marshal.ZeroFreeCoTaskMemAnsi(intPtr);
}
}
}
safeProvHandle = safeProvHandle2;
SafeKeyHandle invalidHandle = SafeKeyHandle.InvalidHandle;
int num = Utils._GetUserKey(safeProvHandle, parameters.KeyNumber, ref invalidHandle);
if (num != 0)
{
if ((parameters.Flags & CspProviderFlags.UseExistingKey) != CspProviderFlags.NoFlags || num != -2146893811)
{
throw new CryptographicException(num);
}
Utils._GenerateKey(safeProvHandle, parameters.KeyNumber, parameters.Flags, dwKeySize, ref invalidHandle);
}
byte[] array = Utils._GetKeyParameter(invalidHandle, 9U);
int num2 = (int)array[0] | (int)array[1] << 8 | (int)array[2] << 16 | (int)array[3] << 24;
if ((keyType == CspAlgorithmType.Rsa && num2 != 41984 && num2 != 9216) || (keyType == CspAlgorithmType.Dss && num2 != 8704))
{
invalidHandle.Dispose();
throw new CryptographicException(Environment.GetResourceString("Cryptography_CSP_WrongKeySpec"));
}
safeKeyHandle = invalidHandle;
}
internal static void GetKeyPairHelper(CspAlgorithmType keyType, CspParameters parameters, bool randomKeyContainer, int dwKeySize, ref SafeProvHandle safeProvHandle, ref SafeKeyHandle safeKeyHandle)
{
SafeProvHandle provHandle = Utils.CreateProvHandle(parameters, randomKeyContainer);
if (parameters.CryptoKeySecurity != null)
{
KeyContainerPermission containerPermission = new KeyContainerPermission(KeyContainerPermissionFlags.NoFlags);
KeyContainerPermissionAccessEntry accessEntry = new KeyContainerPermissionAccessEntry(parameters, KeyContainerPermissionFlags.ChangeAcl);
containerPermission.AccessEntries.Add(accessEntry);
containerPermission.Demand();
Utils.SetKeySetSecurityInfo(provHandle, parameters.CryptoKeySecurity, parameters.CryptoKeySecurity.ChangedAccessControlSections);
}
if (parameters.ParentWindowHandle != IntPtr.Zero)
{
Utils.SetProviderParameter(provHandle, parameters.KeyNumber, 10U, parameters.ParentWindowHandle);
}
else if (parameters.KeyPassword != null)
{
IntPtr coTaskMemAnsi = Marshal.SecureStringToCoTaskMemAnsi(parameters.KeyPassword);
try
{
Utils.SetProviderParameter(provHandle, parameters.KeyNumber, 11U, coTaskMemAnsi);
}
finally
{
if (coTaskMemAnsi != IntPtr.Zero)
{
Marshal.ZeroFreeCoTaskMemAnsi(coTaskMemAnsi);
}
}
}
safeProvHandle = provHandle;
SafeKeyHandle invalidHandle = SafeKeyHandle.InvalidHandle;
int userKey = Utils._GetUserKey(safeProvHandle, parameters.KeyNumber, ref invalidHandle);
if (userKey != 0)
{
if ((parameters.Flags & CspProviderFlags.UseExistingKey) != CspProviderFlags.NoFlags || userKey != -2146893811)
{
throw new CryptographicException(userKey);
}
Utils._GenerateKey(safeProvHandle, parameters.KeyNumber, parameters.Flags, dwKeySize, ref invalidHandle);
}
byte[] keyParameter = Utils._GetKeyParameter(invalidHandle, 9U);
int num = (int)keyParameter[0] | (int)keyParameter[1] << 8 | (int)keyParameter[2] << 16 | (int)keyParameter[3] << 24;
if (keyType == CspAlgorithmType.Rsa && num != 41984 && num != 9216 || keyType == CspAlgorithmType.Dss && num != 8704)
{
invalidHandle.Dispose();
throw new CryptographicException(Environment.GetResourceString("Cryptography_CSP_WrongKeySpec"));
}
safeKeyHandle = invalidHandle;
}
