Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / whidbey / netfxsp / ndp / clr / src / BCL / System / Security / Cryptography / rsa.cs / 1 / rsa.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== // // RSA.cs // namespace System.Security.Cryptography { using System.Text; using System.Runtime.Serialization; using System.Security.Util; using System.Globalization; // We allow only the public components of an RSAParameters object, the Modulus and Exponent // to be serializable. [Serializable] [System.Runtime.InteropServices.ComVisible(true)] public struct RSAParameters { public byte[] Exponent; public byte[] Modulus; [NonSerialized] public byte[] P; [NonSerialized] public byte[] Q; [NonSerialized] public byte[] DP; [NonSerialized] public byte[] DQ; [NonSerialized] public byte[] InverseQ; [NonSerialized] public byte[] D; } [System.Runtime.InteropServices.ComVisible(true)] public abstract class RSA : AsymmetricAlgorithm { // // Extending this class allows us to know that you are really implementing // an RSA key. This is required for anybody providing a new RSA key value // implemention. // // The class provides no methods, fields or anything else. Its only purpose is // as a heirarchy member for identification of algorithm. // protected RSA() { } // // public methods // new static public RSA Create() { return Create("System.Security.Cryptography.RSA"); } new static public RSA Create(String algName) { return (RSA) CryptoConfig.CreateFromName(algName); } // Apply the private key to the data. This function represents a // raw RSA operation -- no implicit depadding of the imput value abstract public byte[] DecryptValue(byte[] rgb); // Apply the public key to the data. Again, this is a raw operation, no // automatic padding. abstract public byte[] EncryptValue(byte[] rgb); // Import/export functions // We can provide a default implementation of FromXmlString because we require // every RSA implementation to implement ImportParameters // All we have to do here is parse the XML. public override void FromXmlString(String xmlString) { if (xmlString == null) throw new ArgumentNullException("xmlString"); RSAParameters rsaParams = new RSAParameters(); Parser p = new Parser(xmlString); SecurityElement topElement = p.GetTopElement(); // Modulus is always present String modulusString = topElement.SearchForTextOfLocalName("Modulus"); if (modulusString == null) { throw new CryptographicException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Cryptography_InvalidFromXmlString"),"RSA","Modulus")); } rsaParams.Modulus = Convert.FromBase64String(Utils.DiscardWhiteSpaces(modulusString)); // Exponent is always present String exponentString = topElement.SearchForTextOfLocalName("Exponent"); if (exponentString == null) { throw new CryptographicException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Cryptography_InvalidFromXmlString"),"RSA","Exponent")); } rsaParams.Exponent = Convert.FromBase64String(Utils.DiscardWhiteSpaces(exponentString)); // P is optional String pString = topElement.SearchForTextOfLocalName("P"); if (pString != null) rsaParams.P = Convert.FromBase64String(Utils.DiscardWhiteSpaces(pString)); // Q is optional String qString = topElement.SearchForTextOfLocalName("Q"); if (qString != null) rsaParams.Q = Convert.FromBase64String(Utils.DiscardWhiteSpaces(qString)); // DP is optional String dpString = topElement.SearchForTextOfLocalName("DP"); if (dpString != null) rsaParams.DP = Convert.FromBase64String(Utils.DiscardWhiteSpaces(dpString)); // DQ is optional String dqString = topElement.SearchForTextOfLocalName("DQ"); if (dqString != null) rsaParams.DQ = Convert.FromBase64String(Utils.DiscardWhiteSpaces(dqString)); // InverseQ is optional String inverseQString = topElement.SearchForTextOfLocalName("InverseQ"); if (inverseQString != null) rsaParams.InverseQ = Convert.FromBase64String(Utils.DiscardWhiteSpaces(inverseQString)); // D is optional String dString = topElement.SearchForTextOfLocalName("D"); if (dString != null) rsaParams.D = Convert.FromBase64String(Utils.DiscardWhiteSpaces(dString)); ImportParameters(rsaParams); } // We can provide a default implementation of ToXmlString because we require // every RSA implementation to implement ImportParameters // If includePrivateParameters is false, this is just an XMLDSIG RSAKeyValue // clause. If includePrivateParameters is true, then we extend RSAKeyValue with // the other (private) elements. public override String ToXmlString(bool includePrivateParameters) { // From the XMLDSIG spec, RFC 3075, Section 6.4.2, an RSAKeyValue looks like this: /**/ // we extend appropriately for private components RSAParameters rsaParams = this.ExportParameters(includePrivateParameters); StringBuilder sb = new StringBuilder(); sb.Append(" "); // Add the modulus sb.Append(" "); return(sb.ToString()); } abstract public RSAParameters ExportParameters(bool includePrivateParameters); abstract public void ImportParameters(RSAParameters parameters); } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== // // RSA.cs // namespace System.Security.Cryptography { using System.Text; using System.Runtime.Serialization; using System.Security.Util; using System.Globalization; // We allow only the public components of an RSAParameters object, the Modulus and Exponent // to be serializable. [Serializable] [System.Runtime.InteropServices.ComVisible(true)] public struct RSAParameters { public byte[] Exponent; public byte[] Modulus; [NonSerialized] public byte[] P; [NonSerialized] public byte[] Q; [NonSerialized] public byte[] DP; [NonSerialized] public byte[] DQ; [NonSerialized] public byte[] InverseQ; [NonSerialized] public byte[] D; } [System.Runtime.InteropServices.ComVisible(true)] public abstract class RSA : AsymmetricAlgorithm { // // Extending this class allows us to know that you are really implementing // an RSA key. This is required for anybody providing a new RSA key value // implemention. // // The class provides no methods, fields or anything else. Its only purpose is // as a heirarchy member for identification of algorithm. // protected RSA() { } // // public methods // new static public RSA Create() { return Create("System.Security.Cryptography.RSA"); } new static public RSA Create(String algName) { return (RSA) CryptoConfig.CreateFromName(algName); } // Apply the private key to the data. This function represents a // raw RSA operation -- no implicit depadding of the imput value abstract public byte[] DecryptValue(byte[] rgb); // Apply the public key to the data. Again, this is a raw operation, no // automatic padding. abstract public byte[] EncryptValue(byte[] rgb); // Import/export functions // We can provide a default implementation of FromXmlString because we require // every RSA implementation to implement ImportParameters // All we have to do here is parse the XML. public override void FromXmlString(String xmlString) { if (xmlString == null) throw new ArgumentNullException("xmlString"); RSAParameters rsaParams = new RSAParameters(); Parser p = new Parser(xmlString); SecurityElement topElement = p.GetTopElement(); // Modulus is always present String modulusString = topElement.SearchForTextOfLocalName("Modulus"); if (modulusString == null) { throw new CryptographicException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Cryptography_InvalidFromXmlString"),"RSA","Modulus")); } rsaParams.Modulus = Convert.FromBase64String(Utils.DiscardWhiteSpaces(modulusString)); // Exponent is always present String exponentString = topElement.SearchForTextOfLocalName("Exponent"); if (exponentString == null) { throw new CryptographicException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Cryptography_InvalidFromXmlString"),"RSA","Exponent")); } rsaParams.Exponent = Convert.FromBase64String(Utils.DiscardWhiteSpaces(exponentString)); // P is optional String pString = topElement.SearchForTextOfLocalName("P"); if (pString != null) rsaParams.P = Convert.FromBase64String(Utils.DiscardWhiteSpaces(pString)); // Q is optional String qString = topElement.SearchForTextOfLocalName("Q"); if (qString != null) rsaParams.Q = Convert.FromBase64String(Utils.DiscardWhiteSpaces(qString)); // DP is optional String dpString = topElement.SearchForTextOfLocalName("DP"); if (dpString != null) rsaParams.DP = Convert.FromBase64String(Utils.DiscardWhiteSpaces(dpString)); // DQ is optional String dqString = topElement.SearchForTextOfLocalName("DQ"); if (dqString != null) rsaParams.DQ = Convert.FromBase64String(Utils.DiscardWhiteSpaces(dqString)); // InverseQ is optional String inverseQString = topElement.SearchForTextOfLocalName("InverseQ"); if (inverseQString != null) rsaParams.InverseQ = Convert.FromBase64String(Utils.DiscardWhiteSpaces(inverseQString)); // D is optional String dString = topElement.SearchForTextOfLocalName("D"); if (dString != null) rsaParams.D = Convert.FromBase64String(Utils.DiscardWhiteSpaces(dString)); ImportParameters(rsaParams); } // We can provide a default implementation of ToXmlString because we require // every RSA implementation to implement ImportParameters // If includePrivateParameters is false, this is just an XMLDSIG RSAKeyValue // clause. If includePrivateParameters is true, then we extend RSAKeyValue with // the other (private) elements. public override String ToXmlString(bool includePrivateParameters) { // From the XMLDSIG spec, RFC 3075, Section 6.4.2, an RSAKeyValue looks like this: /*"+Convert.ToBase64String(rsaParams.Modulus)+" "); // Add the exponent sb.Append(""+Convert.ToBase64String(rsaParams.Exponent)+" "); if (includePrivateParameters) { // Add the private components sb.Append(""+Convert.ToBase64String(rsaParams.P)+"
"); sb.Append(""+Convert.ToBase64String(rsaParams.Q)+""); sb.Append(""+Convert.ToBase64String(rsaParams.DP)+" "); sb.Append(""+Convert.ToBase64String(rsaParams.DQ)+" "); sb.Append(""+Convert.ToBase64String(rsaParams.InverseQ)+" "); sb.Append(""+Convert.ToBase64String(rsaParams.D)+" "); } sb.Append("*/ // we extend appropriately for private components RSAParameters rsaParams = this.ExportParameters(includePrivateParameters); StringBuilder sb = new StringBuilder(); sb.Append(" "); // Add the modulus sb.Append(" "); return(sb.ToString()); } abstract public RSAParameters ExportParameters(bool includePrivateParameters); abstract public void ImportParameters(RSAParameters parameters); } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007."+Convert.ToBase64String(rsaParams.Modulus)+" "); // Add the exponent sb.Append(""+Convert.ToBase64String(rsaParams.Exponent)+" "); if (includePrivateParameters) { // Add the private components sb.Append(""+Convert.ToBase64String(rsaParams.P)+"
"); sb.Append(""+Convert.ToBase64String(rsaParams.Q)+""); sb.Append(""+Convert.ToBase64String(rsaParams.DP)+" "); sb.Append(""+Convert.ToBase64String(rsaParams.DQ)+" "); sb.Append(""+Convert.ToBase64String(rsaParams.InverseQ)+" "); sb.Append(""+Convert.ToBase64String(rsaParams.D)+" "); } sb.Append("
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- SettingsPropertyIsReadOnlyException.cs
- MethodBuilderInstantiation.cs
- SafeHGlobalHandleCritical.cs
- ItemsChangedEventArgs.cs
- EditorPart.cs
- SrgsNameValueTag.cs
- ToolStripOverflow.cs
- PersonalizationProvider.cs
- Latin1Encoding.cs
- ContextMenuService.cs
- Calendar.cs
- WindowsTreeView.cs
- DataGridLength.cs
- GeometryDrawing.cs
- DataSetSchema.cs
- JournalEntry.cs
- KeyedCollection.cs
- InputMethodStateChangeEventArgs.cs
- ConfigurationPermission.cs
- XmlComment.cs
- BuildProvider.cs
- NeedSkipTokenVisitor.cs
- XmlCompatibilityReader.cs
- BlurBitmapEffect.cs
- GridViewSortEventArgs.cs
- SurrogateEncoder.cs
- StreamUpdate.cs
- ControlType.cs
- DesignerContextDescriptor.cs
- DesignerTransactionCloseEvent.cs
- ReferenceEqualityComparer.cs
- EncoderParameter.cs
- TypeLibConverter.cs
- CorrelationManager.cs
- TagPrefixAttribute.cs
- FormViewUpdatedEventArgs.cs
- VirtualPathProvider.cs
- CultureSpecificStringDictionary.cs
- DBSchemaRow.cs
- Parser.cs
- FixedPageStructure.cs
- XmlSchemaSimpleContentExtension.cs
- QueryStoreStatusRequest.cs
- UpdatableWrapper.cs
- BamlRecordHelper.cs
- TimeStampChecker.cs
- Lookup.cs
- Geometry.cs
- ScrollBarRenderer.cs
- LinearGradientBrush.cs
- adornercollection.cs
- StreamingContext.cs
- filewebresponse.cs
- SystemIPGlobalStatistics.cs
- DynamicDocumentPaginator.cs
- TextDecorationLocationValidation.cs
- TextContainerHelper.cs
- ExecutorLocksHeldException.cs
- URLMembershipCondition.cs
- Geometry.cs
- dsa.cs
- LockRecursionException.cs
- TypeResolvingOptionsAttribute.cs
- FormViewInsertEventArgs.cs
- ServiceOperationHelpers.cs
- ControlCollection.cs
- CodeCatchClause.cs
- TextDecorationCollectionConverter.cs
- ScriptingProfileServiceSection.cs
- ObjectCacheHost.cs
- CompensatableTransactionScopeActivity.cs
- DisplayMemberTemplateSelector.cs
- NameNode.cs
- NavigationPropertyEmitter.cs
- Point3DValueSerializer.cs
- InfoCardBaseException.cs
- EdmValidator.cs
- AuthenticationConfig.cs
- ColumnHeaderConverter.cs
- _AutoWebProxyScriptWrapper.cs
- SqlConnectionHelper.cs
- BaseValidatorDesigner.cs
- DataGridViewCellConverter.cs
- SoapObjectInfo.cs
- PackUriHelper.cs
- X509CertificateValidator.cs
- PackWebRequest.cs
- RadioButtonBaseAdapter.cs
- mediaeventargs.cs
- UnionExpr.cs
- ObjectDataSourceChooseMethodsPanel.cs
- complextypematerializer.cs
- FormViewUpdateEventArgs.cs
- EnumerableValidator.cs
- MatrixTransform3D.cs
- CheckBox.cs
- EventDescriptor.cs
- ListViewEditEventArgs.cs
- HashHelpers.cs
- COMException.cs