Code:
/ FXUpdate3074 / FXUpdate3074 / 1.1 / untmp / whidbey / QFE / ndp / clr / src / BCL / System / Security / Cryptography / ICspAsymmetricAlgorithm.cs / 2 / ICspAsymmetricAlgorithm.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== // // ICspAsymmetricAlgorithm.cs // namespace System.Security.Cryptography { using System.Security.AccessControl; using System.Security.Permissions; [Serializable] [System.Runtime.InteropServices.ComVisible(true)] public enum KeyNumber { Exchange = 1, Signature = 2 } [System.Runtime.InteropServices.ComVisible(true)] public sealed class CspKeyContainerInfo { private CspParameters m_parameters; private bool m_randomKeyContainer; private CspKeyContainerInfo () {} internal CspKeyContainerInfo (CspParameters parameters, bool randomKeyContainer) { KeyContainerPermission kp = new KeyContainerPermission(KeyContainerPermissionFlags.NoFlags); KeyContainerPermissionAccessEntry entry = new KeyContainerPermissionAccessEntry(parameters, KeyContainerPermissionFlags.Open); kp.AccessEntries.Add(entry); kp.Demand(); m_parameters = new CspParameters(parameters); if (m_parameters.KeyNumber == -1) { if (m_parameters.ProviderType == Constants.PROV_RSA_FULL || m_parameters.ProviderType == Constants.PROV_RSA_AES) m_parameters.KeyNumber = Constants.AT_KEYEXCHANGE; else if (m_parameters.ProviderType == Constants.PROV_DSS_DH) m_parameters.KeyNumber = Constants.AT_SIGNATURE; } m_randomKeyContainer = randomKeyContainer; } public CspKeyContainerInfo (CspParameters parameters) : this (parameters, false) {} public bool MachineKeyStore { get { return (m_parameters.Flags & CspProviderFlags.UseMachineKeyStore) == CspProviderFlags.UseMachineKeyStore ? true : false; } } public string ProviderName { get { return m_parameters.ProviderName; } } public int ProviderType { get { return m_parameters.ProviderType; } } public string KeyContainerName { get { return m_parameters.KeyContainerName; } } public string UniqueKeyContainerName { get { if (Utils.Win2KCrypto == 0) throw new NotSupportedException(Environment.GetResourceString("NotSupported_Method")); SafeProvHandle safeProvHandle = SafeProvHandle.InvalidHandle; int hr = Utils._OpenCSP(m_parameters, Constants.CRYPT_SILENT, ref safeProvHandle); if (hr != Constants.S_OK) throw new CryptographicException(Environment.GetResourceString("Cryptography_CSP_NotFound")); string uniqueContainerName = (string) Utils._GetProviderParameter(safeProvHandle, m_parameters.KeyNumber, Constants.CLR_UNIQUE_CONTAINER); safeProvHandle.Dispose(); return uniqueContainerName; } } public KeyNumber KeyNumber { get { return (KeyNumber) m_parameters.KeyNumber; } } public bool Exportable { get { if (Utils.Win2KCrypto == 0) throw new NotSupportedException(Environment.GetResourceString("NotSupported_Method")); // Assume hardware keys are not exportable. if (this.HardwareDevice) return false; SafeProvHandle safeProvHandle = SafeProvHandle.InvalidHandle; int hr = Utils._OpenCSP(m_parameters, Constants.CRYPT_SILENT, ref safeProvHandle); if (hr != Constants.S_OK) throw new CryptographicException(Environment.GetResourceString("Cryptography_CSP_NotFound")); byte[] isExportable = (byte[]) Utils._GetProviderParameter(safeProvHandle, m_parameters.KeyNumber, Constants.CLR_EXPORTABLE); safeProvHandle.Dispose(); return (isExportable[0] == 1); } } public bool HardwareDevice { get { SafeProvHandle safeProvHandle = SafeProvHandle.InvalidHandle; CspParameters parameters = new CspParameters(m_parameters); parameters.KeyContainerName = null; parameters.Flags = (parameters.Flags & CspProviderFlags.UseMachineKeyStore) != 0 ? CspProviderFlags.UseMachineKeyStore : 0; uint flags = 0; if (Utils.Win2KCrypto == 1) flags |= Constants.CRYPT_VERIFYCONTEXT; int hr = Utils._OpenCSP(parameters, flags, ref safeProvHandle); if (hr != Constants.S_OK) throw new CryptographicException(Environment.GetResourceString("Cryptography_CSP_NotFound")); byte[] isHardwareDevice = (byte[]) Utils._GetProviderParameter(safeProvHandle, parameters.KeyNumber, Constants.CLR_HARDWARE); safeProvHandle.Dispose(); return (isHardwareDevice[0] == 1); } } public bool Removable { get { SafeProvHandle safeProvHandle = SafeProvHandle.InvalidHandle; CspParameters parameters = new CspParameters(m_parameters); parameters.KeyContainerName = null; parameters.Flags = (parameters.Flags & CspProviderFlags.UseMachineKeyStore) != 0 ? CspProviderFlags.UseMachineKeyStore : 0; uint flags = 0; if (Utils.Win2KCrypto == 1) flags |= Constants.CRYPT_VERIFYCONTEXT; int hr = Utils._OpenCSP(parameters, flags, ref safeProvHandle); if (hr != Constants.S_OK) throw new CryptographicException(Environment.GetResourceString("Cryptography_CSP_NotFound")); byte[] isRemovable = (byte[]) Utils._GetProviderParameter(safeProvHandle, parameters.KeyNumber, Constants.CLR_REMOVABLE); safeProvHandle.Dispose(); return (isRemovable[0] == 1); } } public bool Accessible { get { if (Utils.Win2KCrypto == 0) throw new NotSupportedException(Environment.GetResourceString("NotSupported_Method")); // This method will pop-up a UI for hardware keys. SafeProvHandle safeProvHandle = SafeProvHandle.InvalidHandle; int hr = Utils._OpenCSP(m_parameters, Constants.CRYPT_SILENT, ref safeProvHandle); if (hr != Constants.S_OK) return false; byte[] isAccessible = (byte[]) Utils._GetProviderParameter(safeProvHandle, m_parameters.KeyNumber, Constants.CLR_ACCESSIBLE); safeProvHandle.Dispose(); return (isAccessible[0] == 1); } } public bool Protected { get { // Assume hardware keys are protected. if (this.HardwareDevice == true) return true; if (Utils.Win2KCrypto == 0) throw new NotSupportedException(Environment.GetResourceString("NotSupported_Method")); SafeProvHandle safeProvHandle = SafeProvHandle.InvalidHandle; int hr = Utils._OpenCSP(m_parameters, Constants.CRYPT_SILENT, ref safeProvHandle); if (hr != Constants.S_OK) throw new CryptographicException(Environment.GetResourceString("Cryptography_CSP_NotFound")); byte[] isProtected = (byte[]) Utils._GetProviderParameter(safeProvHandle, m_parameters.KeyNumber, Constants.CLR_PROTECTED); safeProvHandle.Dispose(); return (isProtected[0] == 1); } } public CryptoKeySecurity CryptoKeySecurity { get { if (Utils.Win2KCrypto == 0) throw new NotSupportedException(Environment.GetResourceString("NotSupported_Method")); KeyContainerPermission kp = new KeyContainerPermission(KeyContainerPermissionFlags.NoFlags); KeyContainerPermissionAccessEntry entry = new KeyContainerPermissionAccessEntry(m_parameters, KeyContainerPermissionFlags.ChangeAcl | KeyContainerPermissionFlags.ViewAcl); kp.AccessEntries.Add(entry); kp.Demand(); SafeProvHandle safeProvHandle = SafeProvHandle.InvalidHandle; int hr = Utils._OpenCSP(m_parameters, Constants.CRYPT_SILENT, ref safeProvHandle); if (hr != Constants.S_OK) throw new CryptographicException(Environment.GetResourceString("Cryptography_CSP_NotFound")); using (safeProvHandle) { return Utils.GetKeySetSecurityInfo(safeProvHandle, AccessControlSections.All); } } } public bool RandomlyGenerated { get { return m_randomKeyContainer; } } } [System.Runtime.InteropServices.ComVisible(true)] public interface ICspAsymmetricAlgorithm { CspKeyContainerInfo CspKeyContainerInfo { get; } byte[] ExportCspBlob (bool includePrivateParameters); void ImportCspBlob (byte[] rawData); } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- Vector3DIndependentAnimationStorage.cs
- BindingBase.cs
- XsltException.cs
- FixedTextBuilder.cs
- RowType.cs
- XmlQueryType.cs
- XmlIgnoreAttribute.cs
- OrderByQueryOptionExpression.cs
- DataGridViewElement.cs
- _SSPISessionCache.cs
- ExternalDataExchangeService.cs
- DataViewSettingCollection.cs
- XmlSchemaValidationException.cs
- ObjectCloneHelper.cs
- SqlTrackingQuery.cs
- Stroke2.cs
- TransactionTable.cs
- ETagAttribute.cs
- PointLightBase.cs
- WindowsRichEditRange.cs
- AsymmetricKeyExchangeFormatter.cs
- QuaternionValueSerializer.cs
- XmlDocument.cs
- BamlVersionHeader.cs
- BinaryFormatterWriter.cs
- ResolveMatchesApril2005.cs
- EncryptedPackage.cs
- ConnectionPoint.cs
- XmlSerializerFactory.cs
- ScriptReferenceBase.cs
- FrameworkElement.cs
- ManagedFilter.cs
- XsltFunctions.cs
- ReaderContextStackData.cs
- WebControl.cs
- WindowsListViewSubItem.cs
- controlskin.cs
- RegisteredScript.cs
- UIAgentMonitor.cs
- LambdaCompiler.Address.cs
- PersistChildrenAttribute.cs
- UnsupportedPolicyOptionsException.cs
- Paragraph.cs
- WindowsEditBoxRange.cs
- SettingsPropertyCollection.cs
- NetTcpSecurityElement.cs
- Slider.cs
- DurationConverter.cs
- keycontainerpermission.cs
- InstanceCreationEditor.cs
- PropertyToken.cs
- EntityClassGenerator.cs
- SecurityTokenContainer.cs
- XmlEncoding.cs
- BamlResourceContent.cs
- RefExpr.cs
- ZoneIdentityPermission.cs
- _ServiceNameStore.cs
- RequiredFieldValidator.cs
- XmlElementCollection.cs
- ICspAsymmetricAlgorithm.cs
- MultiView.cs
- ObjectStateEntryDbUpdatableDataRecord.cs
- StringValueSerializer.cs
- AnchorEditor.cs
- SimpleWorkerRequest.cs
- _FixedSizeReader.cs
- TextDecorationCollection.cs
- NativeObjectSecurity.cs
- PermissionToken.cs
- PointLightBase.cs
- PropertyDescriptorComparer.cs
- StorageMappingFragment.cs
- EpmHelper.cs
- CompleteWizardStep.cs
- FileInfo.cs
- TagPrefixCollection.cs
- GrabHandleGlyph.cs
- datacache.cs
- RtfControls.cs
- CaseInsensitiveComparer.cs
- LineProperties.cs
- WebBrowserContainer.cs
- HwndSourceParameters.cs
- SchemaTableOptionalColumn.cs
- TypeConstant.cs
- ImageButton.cs
- DocumentPageHost.cs
- ToolStripSeparator.cs
- InternalConfigHost.cs
- TrustLevelCollection.cs
- DbParameterCollectionHelper.cs
- ResourceProviderFactory.cs
- SystemInfo.cs
- CustomValidator.cs
- RenderData.cs
- SendKeys.cs
- IndexOutOfRangeException.cs
- SchemaMerger.cs
- XmlElementAttributes.cs