Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / ndp / clr / src / BCL / System / Security / Policy / Hash.cs / 1 / Hash.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== // // Hash // // Evidence corresponding to a hash of the assembly bits. // namespace System.Security.Policy { using Microsoft.Win32.SafeHandles; using System.Reflection; using System.Runtime.CompilerServices; using System.Runtime.ConstrainedExecution; using System.Runtime.Serialization; using System.Security.Cryptography; using System.Security.Util; [Serializable] [System.Runtime.InteropServices.ComVisible(true)] public sealed class Hash : ISerializable, IBuiltInEvidence { private SafePEFileHandle m_peFile = SafePEFileHandle.InvalidHandle; internal Hash() {} internal Hash(SerializationInfo info, StreamingContext context) { m_md5 = (byte[]) info.GetValueNoThrow("Md5", typeof(byte[])); m_sha1 = (byte[]) info.GetValueNoThrow("Sha1", typeof(byte[])); m_peFile = SafePEFileHandle.InvalidHandle; m_rawData = (byte[]) info.GetValue("RawData", typeof(byte[])); if (m_rawData == null) { IntPtr peFile = (IntPtr) info.GetValue("PEFile", typeof(IntPtr)); if (peFile != IntPtr.Zero) _SetPEFileHandle(peFile, ref m_peFile); } } public Hash(Assembly assembly) { if (assembly == null) throw new ArgumentNullException("assembly"); _GetPEFileFromAssembly(assembly.InternalAssembly, ref m_peFile); } public static Hash CreateSHA1(byte[] sha1) { if (sha1 == null) throw new ArgumentNullException("sha1"); Hash hash = new Hash(); hash.m_sha1 = new byte[sha1.Length]; Array.Copy(sha1, hash.m_sha1, sha1.Length); return hash; } public static Hash CreateMD5(byte[] md5) { if (md5 == null) throw new ArgumentNullException("md5"); Hash hash = new Hash(); hash.m_md5 = new byte[md5.Length]; Array.Copy(md5, hash.m_md5, md5.Length); return hash; } public void GetObjectData(SerializationInfo info, StreamingContext context) { new System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityPermissionFlag.UnmanagedCode).Demand(); info.AddValue("Md5", m_md5); info.AddValue("Sha1", m_sha1); if (context.State == StreamingContextStates.Clone || context.State == StreamingContextStates.CrossAppDomain) { info.AddValue("PEFile", m_peFile.DangerousGetHandle()); if (m_peFile.IsInvalid) info.AddValue("RawData", m_rawData); else info.AddValue("RawData", null); } else { if (!m_peFile.IsInvalid) m_rawData = this.RawData; info.AddValue("PEFile", IntPtr.Zero); info.AddValue("RawData", m_rawData); } } private byte[] m_rawData = null; internal byte[] RawData { get { if (m_rawData == null) { if (m_peFile.IsInvalid) throw new SecurityException(Environment.GetResourceString("Security_CannotGetRawData")); byte[] rawData = _GetRawData(m_peFile); if (rawData == null) throw new SecurityException(Environment.GetResourceString("Security_CannotGenerateHash")); m_rawData = rawData; } return m_rawData; } } private byte[] m_sha1 = null; public byte[] SHA1 { get { if (m_sha1 == null) { System.Security.Cryptography.SHA1 hashAlg = new System.Security.Cryptography.SHA1Managed(); m_sha1 = hashAlg.ComputeHash(this.RawData); } byte[] retval = new byte[m_sha1.Length]; Array.Copy(m_sha1, retval, m_sha1.Length); return retval; } } private byte[] m_md5 = null; public byte[] MD5 { get { if (m_md5 == null) { System.Security.Cryptography.MD5 hashAlg = new MD5CryptoServiceProvider(); m_md5 = hashAlg.ComputeHash(this.RawData); } byte[] retval = new byte[m_md5.Length]; Array.Copy(m_md5, retval, m_md5.Length); return retval; } } public byte[] GenerateHash(HashAlgorithm hashAlg) { if (hashAlg == null) throw new ArgumentNullException("hashAlg"); if (hashAlg is SHA1) return this.SHA1; else if (hashAlg is MD5) return this.MD5; return hashAlg.ComputeHash(this.RawData); } ///int IBuiltInEvidence.OutputToBuffer(char[] buffer, int position, bool verbose) { if (!verbose) return position; buffer[position++] = BuiltInEvidenceHelper.idHash; IntPtr ptrPEFile = IntPtr.Zero; if (!m_peFile.IsInvalid) ptrPEFile = m_peFile.DangerousGetHandle() ; BuiltInEvidenceHelper.CopyLongToCharArray((long)ptrPEFile, buffer, position); return position + 4; } /// int IBuiltInEvidence.GetRequiredSize(bool verbose) { if (verbose) return (1 + 4); // identifier + IntPtr else return 0; } /// int IBuiltInEvidence.InitFromBuffer(char[] buffer, int position) { m_peFile = SafePEFileHandle.InvalidHandle; IntPtr ptrPEFile = (IntPtr) BuiltInEvidenceHelper.GetLongFromCharArray(buffer, position); _SetPEFileHandle(ptrPEFile, ref this.m_peFile); return position + 4; } private SecurityElement ToXml() { SecurityElement root = new SecurityElement("System.Security.Policy.Hash"); // If you hit this assert then most likely you are trying to change the name of this class. // This is ok as long as you change the hard coded string above and change the assert below. BCLDebug.Assert(this.GetType().FullName.Equals("System.Security.Policy.Hash"), "Class name changed!"); root.AddAttribute("version", "1"); root.AddChild(new SecurityElement("RawData", Hex.EncodeHexString(this.RawData))); return root; } public override String ToString() { return ToXml().ToString(); } [MethodImplAttribute(MethodImplOptions.InternalCall)] private static extern byte[] _GetRawData(SafePEFileHandle handle); [MethodImplAttribute(MethodImplOptions.InternalCall)] private static extern void _GetPEFileFromAssembly(Assembly assembly, ref SafePEFileHandle handle); [MethodImplAttribute(MethodImplOptions.InternalCall), ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success)] internal static extern void _ReleasePEFile(IntPtr handle); [MethodImplAttribute(MethodImplOptions.InternalCall)] internal static extern void _SetPEFileHandle(IntPtr inHandle, ref SafePEFileHandle outHandle); } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== // // Hash // // Evidence corresponding to a hash of the assembly bits. // namespace System.Security.Policy { using Microsoft.Win32.SafeHandles; using System.Reflection; using System.Runtime.CompilerServices; using System.Runtime.ConstrainedExecution; using System.Runtime.Serialization; using System.Security.Cryptography; using System.Security.Util; [Serializable] [System.Runtime.InteropServices.ComVisible(true)] public sealed class Hash : ISerializable, IBuiltInEvidence { private SafePEFileHandle m_peFile = SafePEFileHandle.InvalidHandle; internal Hash() {} internal Hash(SerializationInfo info, StreamingContext context) { m_md5 = (byte[]) info.GetValueNoThrow("Md5", typeof(byte[])); m_sha1 = (byte[]) info.GetValueNoThrow("Sha1", typeof(byte[])); m_peFile = SafePEFileHandle.InvalidHandle; m_rawData = (byte[]) info.GetValue("RawData", typeof(byte[])); if (m_rawData == null) { IntPtr peFile = (IntPtr) info.GetValue("PEFile", typeof(IntPtr)); if (peFile != IntPtr.Zero) _SetPEFileHandle(peFile, ref m_peFile); } } public Hash(Assembly assembly) { if (assembly == null) throw new ArgumentNullException("assembly"); _GetPEFileFromAssembly(assembly.InternalAssembly, ref m_peFile); } public static Hash CreateSHA1(byte[] sha1) { if (sha1 == null) throw new ArgumentNullException("sha1"); Hash hash = new Hash(); hash.m_sha1 = new byte[sha1.Length]; Array.Copy(sha1, hash.m_sha1, sha1.Length); return hash; } public static Hash CreateMD5(byte[] md5) { if (md5 == null) throw new ArgumentNullException("md5"); Hash hash = new Hash(); hash.m_md5 = new byte[md5.Length]; Array.Copy(md5, hash.m_md5, md5.Length); return hash; } public void GetObjectData(SerializationInfo info, StreamingContext context) { new System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityPermissionFlag.UnmanagedCode).Demand(); info.AddValue("Md5", m_md5); info.AddValue("Sha1", m_sha1); if (context.State == StreamingContextStates.Clone || context.State == StreamingContextStates.CrossAppDomain) { info.AddValue("PEFile", m_peFile.DangerousGetHandle()); if (m_peFile.IsInvalid) info.AddValue("RawData", m_rawData); else info.AddValue("RawData", null); } else { if (!m_peFile.IsInvalid) m_rawData = this.RawData; info.AddValue("PEFile", IntPtr.Zero); info.AddValue("RawData", m_rawData); } } private byte[] m_rawData = null; internal byte[] RawData { get { if (m_rawData == null) { if (m_peFile.IsInvalid) throw new SecurityException(Environment.GetResourceString("Security_CannotGetRawData")); byte[] rawData = _GetRawData(m_peFile); if (rawData == null) throw new SecurityException(Environment.GetResourceString("Security_CannotGenerateHash")); m_rawData = rawData; } return m_rawData; } } private byte[] m_sha1 = null; public byte[] SHA1 { get { if (m_sha1 == null) { System.Security.Cryptography.SHA1 hashAlg = new System.Security.Cryptography.SHA1Managed(); m_sha1 = hashAlg.ComputeHash(this.RawData); } byte[] retval = new byte[m_sha1.Length]; Array.Copy(m_sha1, retval, m_sha1.Length); return retval; } } private byte[] m_md5 = null; public byte[] MD5 { get { if (m_md5 == null) { System.Security.Cryptography.MD5 hashAlg = new MD5CryptoServiceProvider(); m_md5 = hashAlg.ComputeHash(this.RawData); } byte[] retval = new byte[m_md5.Length]; Array.Copy(m_md5, retval, m_md5.Length); return retval; } } public byte[] GenerateHash(HashAlgorithm hashAlg) { if (hashAlg == null) throw new ArgumentNullException("hashAlg"); if (hashAlg is SHA1) return this.SHA1; else if (hashAlg is MD5) return this.MD5; return hashAlg.ComputeHash(this.RawData); } /// int IBuiltInEvidence.OutputToBuffer(char[] buffer, int position, bool verbose) { if (!verbose) return position; buffer[position++] = BuiltInEvidenceHelper.idHash; IntPtr ptrPEFile = IntPtr.Zero; if (!m_peFile.IsInvalid) ptrPEFile = m_peFile.DangerousGetHandle() ; BuiltInEvidenceHelper.CopyLongToCharArray((long)ptrPEFile, buffer, position); return position + 4; } /// int IBuiltInEvidence.GetRequiredSize(bool verbose) { if (verbose) return (1 + 4); // identifier + IntPtr else return 0; } /// int IBuiltInEvidence.InitFromBuffer(char[] buffer, int position) { m_peFile = SafePEFileHandle.InvalidHandle; IntPtr ptrPEFile = (IntPtr) BuiltInEvidenceHelper.GetLongFromCharArray(buffer, position); _SetPEFileHandle(ptrPEFile, ref this.m_peFile); return position + 4; } private SecurityElement ToXml() { SecurityElement root = new SecurityElement("System.Security.Policy.Hash"); // If you hit this assert then most likely you are trying to change the name of this class. // This is ok as long as you change the hard coded string above and change the assert below. BCLDebug.Assert(this.GetType().FullName.Equals("System.Security.Policy.Hash"), "Class name changed!"); root.AddAttribute("version", "1"); root.AddChild(new SecurityElement("RawData", Hex.EncodeHexString(this.RawData))); return root; } public override String ToString() { return ToXml().ToString(); } [MethodImplAttribute(MethodImplOptions.InternalCall)] private static extern byte[] _GetRawData(SafePEFileHandle handle); [MethodImplAttribute(MethodImplOptions.InternalCall)] private static extern void _GetPEFileFromAssembly(Assembly assembly, ref SafePEFileHandle handle); [MethodImplAttribute(MethodImplOptions.InternalCall), ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success)] internal static extern void _ReleasePEFile(IntPtr handle); [MethodImplAttribute(MethodImplOptions.InternalCall)] internal static extern void _SetPEFileHandle(IntPtr inHandle, ref SafePEFileHandle outHandle); } } // 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
- mediapermission.cs
- MarginsConverter.cs
- EventHandlerList.cs
- CommunicationObject.cs
- TabControlCancelEvent.cs
- TextEditorLists.cs
- InputScopeAttribute.cs
- CharStorage.cs
- GrammarBuilder.cs
- ConfigurationSection.cs
- XmlUtilWriter.cs
- ProxyOperationRuntime.cs
- UrlMappingsSection.cs
- WarningException.cs
- ObjectCacheHost.cs
- XmlSchemaCollection.cs
- FileResponseElement.cs
- HtmlInputReset.cs
- Substitution.cs
- PartialClassGenerationTask.cs
- storepermission.cs
- CustomAttributeSerializer.cs
- Path.cs
- OutputCacheProfile.cs
- AppModelKnownContentFactory.cs
- WebControlAdapter.cs
- CompiledScopeCriteria.cs
- Point.cs
- InplaceBitmapMetadataWriter.cs
- AuthenticationSection.cs
- TreeViewTemplateSelector.cs
- UIElementParagraph.cs
- NamedPipeProcessProtocolHandler.cs
- ObjectListCommandEventArgs.cs
- XamlHttpHandlerFactory.cs
- TemplateBuilder.cs
- Shape.cs
- RoutingExtensionElement.cs
- WindowsSolidBrush.cs
- MimePart.cs
- GridViewSortEventArgs.cs
- ByValueEqualityComparer.cs
- SByteStorage.cs
- PopupRoot.cs
- ResourceBinder.cs
- ShaperBuffers.cs
- TypeDescriptionProviderAttribute.cs
- StringFunctions.cs
- DiscoveryOperationContext.cs
- ICspAsymmetricAlgorithm.cs
- XPathNavigatorReader.cs
- ResizeGrip.cs
- ListView.cs
- InkCanvas.cs
- RegistrySecurity.cs
- StickyNoteAnnotations.cs
- Setter.cs
- LoginStatusDesigner.cs
- DecimalAnimationBase.cs
- DataSourceXmlAttributeAttribute.cs
- Style.cs
- WSSecurityOneDotZeroSendSecurityHeader.cs
- DataGridViewTopRowAccessibleObject.cs
- DataSourceExpressionCollection.cs
- GeometryModel3D.cs
- FileFormatException.cs
- SingleTagSectionHandler.cs
- XmlSchemas.cs
- CardSpaceSelector.cs
- LoginName.cs
- UInt32.cs
- cookieexception.cs
- LinqDataView.cs
- DomainConstraint.cs
- GestureRecognizer.cs
- RecognitionEventArgs.cs
- ChannelCacheDefaults.cs
- Int32AnimationUsingKeyFrames.cs
- LocationUpdates.cs
- SqlCacheDependencyDatabase.cs
- ILGenerator.cs
- MenuCommand.cs
- LookupBindingPropertiesAttribute.cs
- unsafeIndexingFilterStream.cs
- IdentityValidationException.cs
- Annotation.cs
- BlobPersonalizationState.cs
- NodeLabelEditEvent.cs
- ScrollItemProviderWrapper.cs
- Group.cs
- CompiledIdentityConstraint.cs
- Selection.cs
- RangeValuePatternIdentifiers.cs
- HexParser.cs
- WebPartDescriptionCollection.cs
- WebPartConnection.cs
- TreeBuilderBamlTranslator.cs
- HealthMonitoringSectionHelper.cs
- BinHexDecoder.cs
- SoapHeader.cs