Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Core / System / Security / Cryptography / CngAlgorithm.cs / 1305376 / CngAlgorithm.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== using System; using System.Diagnostics.Contracts; namespace System.Security.Cryptography { ////// Utility class to strongly type algorithms used with CNG. Since all CNG APIs which require an /// algorithm name take the name as a string, we use this string wrapper class to specifically mark /// which parameters are expected to be algorithms. We also provide a list of well known algorithm /// names, which helps Intellisense users find a set of good algorithm names to use. /// [Serializable] [System.Security.Permissions.HostProtection(MayLeakOnAbort = true)] public sealed class CngAlgorithm : IEquatable{ private static CngAlgorithm s_ecdhp256; private static CngAlgorithm s_ecdhp384; private static CngAlgorithm s_ecdhp521; private static CngAlgorithm s_ecdsap256; private static CngAlgorithm s_ecdsap384; private static CngAlgorithm s_ecdsap521; private static CngAlgorithm s_md5; private static CngAlgorithm s_sha1; private static CngAlgorithm s_sha256; private static CngAlgorithm s_sha384; private static CngAlgorithm s_sha512; private string m_algorithm; public CngAlgorithm(string algorithm) { Contract.Ensures(!String.IsNullOrEmpty(m_algorithm)); if (algorithm == null) { throw new ArgumentNullException("algorithm"); } if (algorithm.Length == 0) { throw new ArgumentException(SR.GetString(SR.Cryptography_InvalidAlgorithmName, algorithm), "algorithm"); } m_algorithm = algorithm; } /// /// Name of the algorithm /// public string Algorithm { get { Contract.Ensures(!String.IsNullOrEmpty(Contract.Result())); return m_algorithm; } } public static bool operator==(CngAlgorithm left, CngAlgorithm right) { if (Object.ReferenceEquals(left, null)) { return Object.ReferenceEquals(right, null); } return left.Equals(right); } [Pure] public static bool operator !=(CngAlgorithm left, CngAlgorithm right) { if (Object.ReferenceEquals(left, null)) { return !Object.ReferenceEquals(right, null); } return !left.Equals(right); } public override bool Equals(object obj) { Contract.Assert(m_algorithm != null); return Equals(obj as CngAlgorithm); } public bool Equals(CngAlgorithm other) { if (Object.ReferenceEquals(other, null)) { return false; } return m_algorithm.Equals(other.Algorithm); } public override int GetHashCode() { Contract.Assert(m_algorithm != null); return m_algorithm.GetHashCode(); } public override string ToString() { Contract.Assert(m_algorithm != null); return m_algorithm; } // // Well known algorithms // public static CngAlgorithm ECDiffieHellmanP256 { get { Contract.Ensures(Contract.Result () != null); if (s_ecdhp256 == null) { s_ecdhp256 = new CngAlgorithm(BCryptNative.AlgorithmName.ECDHP256); } return s_ecdhp256; } } public static CngAlgorithm ECDiffieHellmanP384 { get { Contract.Ensures(Contract.Result () != null); if (s_ecdhp384 == null) { s_ecdhp384 = new CngAlgorithm(BCryptNative.AlgorithmName.ECDHP384); } return s_ecdhp384; } } public static CngAlgorithm ECDiffieHellmanP521 { get { Contract.Ensures(Contract.Result () != null); if (s_ecdhp521 == null) { s_ecdhp521 = new CngAlgorithm(BCryptNative.AlgorithmName.ECDHP521); } return s_ecdhp521; } } public static CngAlgorithm ECDsaP256 { get { Contract.Ensures(Contract.Result () != null); if (s_ecdsap256 == null) { s_ecdsap256 = new CngAlgorithm(BCryptNative.AlgorithmName.ECDsaP256); } return s_ecdsap256; } } public static CngAlgorithm ECDsaP384 { get { Contract.Ensures(Contract.Result () != null); if (s_ecdsap384 == null) { s_ecdsap384 = new CngAlgorithm(BCryptNative.AlgorithmName.ECDsaP384); } return s_ecdsap384; } } public static CngAlgorithm ECDsaP521 { get { Contract.Ensures(Contract.Result () != null); if (s_ecdsap521 == null) { s_ecdsap521 = new CngAlgorithm(BCryptNative.AlgorithmName.ECDsaP521); } return s_ecdsap521; } } public static CngAlgorithm MD5 { get { Contract.Ensures(Contract.Result () != null); if (s_md5 == null) { s_md5 = new CngAlgorithm(BCryptNative.AlgorithmName.MD5); } return s_md5; } } public static CngAlgorithm Sha1 { get { Contract.Ensures(Contract.Result () != null); if (s_sha1 == null) { s_sha1 = new CngAlgorithm(BCryptNative.AlgorithmName.Sha1); } return s_sha1; } } public static CngAlgorithm Sha256 { get { Contract.Ensures(Contract.Result () != null); if (s_sha256 == null) { s_sha256 = new CngAlgorithm(BCryptNative.AlgorithmName.Sha256); } return s_sha256; } } public static CngAlgorithm Sha384 { get { Contract.Ensures(Contract.Result () != null); if (s_sha384 == null) { s_sha384 = new CngAlgorithm(BCryptNative.AlgorithmName.Sha384); } return s_sha384; } } public static CngAlgorithm Sha512 { get { Contract.Ensures(Contract.Result () != null); if (s_sha512 == null) { s_sha512 = new CngAlgorithm(BCryptNative.AlgorithmName.Sha512); } return s_sha512; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== using System; using System.Diagnostics.Contracts; namespace System.Security.Cryptography { /// /// Utility class to strongly type algorithms used with CNG. Since all CNG APIs which require an /// algorithm name take the name as a string, we use this string wrapper class to specifically mark /// which parameters are expected to be algorithms. We also provide a list of well known algorithm /// names, which helps Intellisense users find a set of good algorithm names to use. /// [Serializable] [System.Security.Permissions.HostProtection(MayLeakOnAbort = true)] public sealed class CngAlgorithm : IEquatable{ private static CngAlgorithm s_ecdhp256; private static CngAlgorithm s_ecdhp384; private static CngAlgorithm s_ecdhp521; private static CngAlgorithm s_ecdsap256; private static CngAlgorithm s_ecdsap384; private static CngAlgorithm s_ecdsap521; private static CngAlgorithm s_md5; private static CngAlgorithm s_sha1; private static CngAlgorithm s_sha256; private static CngAlgorithm s_sha384; private static CngAlgorithm s_sha512; private string m_algorithm; public CngAlgorithm(string algorithm) { Contract.Ensures(!String.IsNullOrEmpty(m_algorithm)); if (algorithm == null) { throw new ArgumentNullException("algorithm"); } if (algorithm.Length == 0) { throw new ArgumentException(SR.GetString(SR.Cryptography_InvalidAlgorithmName, algorithm), "algorithm"); } m_algorithm = algorithm; } /// /// Name of the algorithm /// public string Algorithm { get { Contract.Ensures(!String.IsNullOrEmpty(Contract.Result())); return m_algorithm; } } public static bool operator==(CngAlgorithm left, CngAlgorithm right) { if (Object.ReferenceEquals(left, null)) { return Object.ReferenceEquals(right, null); } return left.Equals(right); } [Pure] public static bool operator !=(CngAlgorithm left, CngAlgorithm right) { if (Object.ReferenceEquals(left, null)) { return !Object.ReferenceEquals(right, null); } return !left.Equals(right); } public override bool Equals(object obj) { Contract.Assert(m_algorithm != null); return Equals(obj as CngAlgorithm); } public bool Equals(CngAlgorithm other) { if (Object.ReferenceEquals(other, null)) { return false; } return m_algorithm.Equals(other.Algorithm); } public override int GetHashCode() { Contract.Assert(m_algorithm != null); return m_algorithm.GetHashCode(); } public override string ToString() { Contract.Assert(m_algorithm != null); return m_algorithm; } // // Well known algorithms // public static CngAlgorithm ECDiffieHellmanP256 { get { Contract.Ensures(Contract.Result () != null); if (s_ecdhp256 == null) { s_ecdhp256 = new CngAlgorithm(BCryptNative.AlgorithmName.ECDHP256); } return s_ecdhp256; } } public static CngAlgorithm ECDiffieHellmanP384 { get { Contract.Ensures(Contract.Result () != null); if (s_ecdhp384 == null) { s_ecdhp384 = new CngAlgorithm(BCryptNative.AlgorithmName.ECDHP384); } return s_ecdhp384; } } public static CngAlgorithm ECDiffieHellmanP521 { get { Contract.Ensures(Contract.Result () != null); if (s_ecdhp521 == null) { s_ecdhp521 = new CngAlgorithm(BCryptNative.AlgorithmName.ECDHP521); } return s_ecdhp521; } } public static CngAlgorithm ECDsaP256 { get { Contract.Ensures(Contract.Result () != null); if (s_ecdsap256 == null) { s_ecdsap256 = new CngAlgorithm(BCryptNative.AlgorithmName.ECDsaP256); } return s_ecdsap256; } } public static CngAlgorithm ECDsaP384 { get { Contract.Ensures(Contract.Result () != null); if (s_ecdsap384 == null) { s_ecdsap384 = new CngAlgorithm(BCryptNative.AlgorithmName.ECDsaP384); } return s_ecdsap384; } } public static CngAlgorithm ECDsaP521 { get { Contract.Ensures(Contract.Result () != null); if (s_ecdsap521 == null) { s_ecdsap521 = new CngAlgorithm(BCryptNative.AlgorithmName.ECDsaP521); } return s_ecdsap521; } } public static CngAlgorithm MD5 { get { Contract.Ensures(Contract.Result () != null); if (s_md5 == null) { s_md5 = new CngAlgorithm(BCryptNative.AlgorithmName.MD5); } return s_md5; } } public static CngAlgorithm Sha1 { get { Contract.Ensures(Contract.Result () != null); if (s_sha1 == null) { s_sha1 = new CngAlgorithm(BCryptNative.AlgorithmName.Sha1); } return s_sha1; } } public static CngAlgorithm Sha256 { get { Contract.Ensures(Contract.Result () != null); if (s_sha256 == null) { s_sha256 = new CngAlgorithm(BCryptNative.AlgorithmName.Sha256); } return s_sha256; } } public static CngAlgorithm Sha384 { get { Contract.Ensures(Contract.Result () != null); if (s_sha384 == null) { s_sha384 = new CngAlgorithm(BCryptNative.AlgorithmName.Sha384); } return s_sha384; } } public static CngAlgorithm Sha512 { get { Contract.Ensures(Contract.Result () != null); if (s_sha512 == null) { s_sha512 = new CngAlgorithm(BCryptNative.AlgorithmName.Sha512); } return s_sha512; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- EditorPartCollection.cs
- WebServiceClientProxyGenerator.cs
- MenuBindingsEditorForm.cs
- UserPreferenceChangingEventArgs.cs
- SchemaManager.cs
- SerialReceived.cs
- TableCell.cs
- StrokeDescriptor.cs
- EventRoute.cs
- NotifyIcon.cs
- WebConfigurationHostFileChange.cs
- Compensate.cs
- DefaultValueAttribute.cs
- ListViewDataItem.cs
- XmlTextWriter.cs
- SqlDataSource.cs
- GestureRecognitionResult.cs
- DotNetATv1WindowsLogEntryDeserializer.cs
- PositiveTimeSpanValidator.cs
- StringValidator.cs
- StrokeNode.cs
- Empty.cs
- NotifyCollectionChangedEventArgs.cs
- FixedTextBuilder.cs
- DesignerAttribute.cs
- InternalPermissions.cs
- ArgumentException.cs
- HostProtectionException.cs
- ProviderConnectionPoint.cs
- EventLogPermissionEntry.cs
- MaterializeFromAtom.cs
- ProjectionPruner.cs
- _Events.cs
- OleServicesContext.cs
- ItemChangedEventArgs.cs
- ListViewInsertedEventArgs.cs
- OledbConnectionStringbuilder.cs
- ReadOnlyAttribute.cs
- SQLDateTimeStorage.cs
- DataColumnCollection.cs
- COM2EnumConverter.cs
- SystemIcmpV6Statistics.cs
- MobileUITypeEditor.cs
- rsa.cs
- TreeNodeConverter.cs
- ObjectQueryProvider.cs
- SmtpCommands.cs
- WeakHashtable.cs
- RuntimeEnvironment.cs
- DbFunctionCommandTree.cs
- LineProperties.cs
- JsonGlobals.cs
- Root.cs
- DependencyPropertyKey.cs
- DataGridViewCellContextMenuStripNeededEventArgs.cs
- DataTableReader.cs
- ConditionCollection.cs
- CannotUnloadAppDomainException.cs
- QueuePathEditor.cs
- BamlReader.cs
- TextEditorSpelling.cs
- ExpressionEditorAttribute.cs
- DrawTreeNodeEventArgs.cs
- MapPathBasedVirtualPathProvider.cs
- EntryWrittenEventArgs.cs
- UnsafeMethods.cs
- PrintEvent.cs
- BrowserCapabilitiesCompiler.cs
- GroupItemAutomationPeer.cs
- StringPropertyBuilder.cs
- JapaneseCalendar.cs
- DesignerCategoryAttribute.cs
- CodeAssignStatement.cs
- ProviderConnectionPointCollection.cs
- PackUriHelper.cs
- StringWriter.cs
- Size.cs
- ComponentResourceKey.cs
- OrderedDictionary.cs
- CompoundFileIOPermission.cs
- EventLogPermissionAttribute.cs
- CodeTypeParameterCollection.cs
- DependentList.cs
- Point3DCollection.cs
- AncillaryOps.cs
- DataBindingCollectionConverter.cs
- MimeReturn.cs
- MarkupCompiler.cs
- ExecutionContext.cs
- SessionConnectionReader.cs
- BindingCollectionElement.cs
- DataBindEngine.cs
- KeyBinding.cs
- SafeProcessHandle.cs
- Privilege.cs
- EventWaitHandle.cs
- AccessDataSourceView.cs
- ContentTextAutomationPeer.cs
- CmsInterop.cs
- TdsParserStaticMethods.cs