//
// CryptoConfig.cs: Handles cryptographic implementations and OIDs mappings.
//
// Author:
// Sebastien Pouliot (sebastien@ximian.com)
// Tim Coleman (tim@timcoleman.com)
//
// (C) 2002, 2003 Motus Technologies Inc. (http://www.motus.com)
// Copyright (C) Tim Coleman, 2004
// Copyright (C) 2004-2007 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
#if !MOONLIGHT
using System.Collections;
using System.Globalization;
using System.IO;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Security.Permissions;
using System.Text;
using Mono.Xml;
namespace System.Security.Cryptography{
[ComVisible (true)]
public partial class CryptoConfig {
static private object lockObject;
static private Hashtable algorithms;
static private Hashtable oid;
private const string defaultNamespace = "System.Security.Cryptography.";
private const string defaultSHA1 = defaultNamespace + "SHA1CryptoServiceProvider";
private const string defaultMD5 = defaultNamespace + "MD5CryptoServiceProvider";
private const string defaultSHA256 = defaultNamespace + "SHA256Managed";
private const string defaultSHA384 = defaultNamespace + "SHA384Managed";
private const string defaultSHA512 = defaultNamespace + "SHA512Managed";
private const string defaultRSA = defaultNamespace + "RSACryptoServiceProvider";
private const string defaultDSA = defaultNamespace + "DSACryptoServiceProvider";
private const string defaultDES = defaultNamespace + "DESCryptoServiceProvider";
private const string default3DES = defaultNamespace + "TripleDESCryptoServiceProvider";
private const string defaultRC2 = defaultNamespace + "RC2CryptoServiceProvider";
private const string defaultAES = defaultNamespace + "RijndaelManaged";
// LAMESPEC: undocumented names in CryptoConfig
private const string defaultRNG = defaultNamespace + "RNGCryptoServiceProvider";
private const string defaultHMAC = defaultNamespace + "HMACSHA1";
private const string defaultMAC3DES = defaultNamespace + "MACTripleDES";
// LAMESPEC: undocumented classes (also undocumented in CryptoConfig ;-)
private const string defaultDSASigDesc = defaultNamespace + "DSASignatureDescription";
private const string defaultRSASigDesc = defaultNamespace + "RSAPKCS1SHA1SignatureDescription";
private const string defaultRIPEMD160 = defaultNamespace + "RIPEMD160Managed";
private const string defaultHMACMD5 = defaultNamespace + "HMACMD5";
private const string defaultHMACRIPEMD160 = defaultNamespace + "HMACRIPEMD160";
private const string defaultHMACSHA256 = defaultNamespace + "HMACSHA256";
private const string defaultHMACSHA384 = defaultNamespace + "HMACSHA384";
private const string defaultHMACSHA512 = defaultNamespace + "HMACSHA512";
// LAMESPEC: undocumented names in CryptoConfig
private const string defaultC14N = defaultNamespace + "Xml.XmlDsigC14NTransform, " + Consts.AssemblySystem_Security;
private const string defaultC14NWithComments = defaultNamespace + "Xml.XmlDsigC14NWithCommentsTransform, " + Consts.AssemblySystem_Security;
private const string defaultBase64 = defaultNamespace + "Xml.XmlDsigBase64Transform, " + Consts.AssemblySystem_Security;
private const string defaultXPath = defaultNamespace + "Xml.XmlDsigXPathTransform, " + Consts.AssemblySystem_Security;
private const string defaultXslt = defaultNamespace + "Xml.XmlDsigXsltTransform, " + Consts.AssemblySystem_Security;
private const string defaultEnveloped = defaultNamespace + "Xml.XmlDsigEnvelopedSignatureTransform, " + Consts.AssemblySystem_Security;
private const string defaultXmlDecryption = defaultNamespace + "Xml.XmlDecryptionTransform, " + Consts.AssemblySystem_Security;
private const string defaultExcC14N = defaultNamespace + "Xml.XmlDsigExcC14NTransform, " + Consts.AssemblySystem_Security;
private const string defaultExcC14NWithComments = defaultNamespace + "Xml.XmlDsigExcC14NWithCommentsTransform, " + Consts.AssemblySystem_Security;
// LAMESPEC: only documentated in ".NET Framework Security" book
private const string defaultX509Data = defaultNamespace + "Xml.KeyInfoX509Data, " + Consts.AssemblySystem_Security;
private const string defaultKeyName = defaultNamespace + "Xml.KeyInfoName, " + Consts.AssemblySystem_Security;
private const string defaultKeyValueDSA = defaultNamespace + "Xml.DSAKeyValue, " + Consts.AssemblySystem_Security;
private const string defaultKeyValueRSA = defaultNamespace + "Xml.RSAKeyValue, " + Consts.AssemblySystem_Security;
private const string defaultRetrievalMethod = defaultNamespace + "Xml.KeyInfoRetrievalMethod, " + Consts.AssemblySystem_Security;
private const string managedSHA1 = defaultNamespace + "SHA1Managed";
// Oddly OID seems only available for hash algorithms
private const string oidSHA1 = "1.3.14.3.2.26";
private const string oidMD5 = "1.2.840.113549.2.5";
// changed in 2.0
private const string oidSHA256 = "2.16.840.1.101.3.4.2.1";
private const string oidSHA384 = "2.16.840.1.101.3.4.2.2";
private const string oidSHA512 = "2.16.840.1.101.3.4.2.3";
// new in 2.0
// private const string oidRSA = "1.2.840.113549.1.1.1";
// private const string oidDSA = "1.2.840.10040.4.1";
private const string oidDES = "1.3.14.3.2.7";
private const string oid3DES = "1.2.840.113549.3.7";
private const string oidRC2 = "1.2.840.113549.3.2";
// LAMESPEC: only documentated in ".NET Framework Security" book
private const string oid3DESKeyWrap = "1.2.840.113549.1.9.16.3.6";
private const string nameSHA1a = "SHA";
private const string nameSHA1b = "SHA1";
private const string nameSHA1c = "System.Security.Cryptography.SHA1";
private const string nameSHA1d = "System.Security.Cryptography.HashAlgorithm";
private const string nameMD5a = "MD5";
private const string nameMD5b = "System.Security.Cryptography.MD5";
private const string nameSHA256a = "SHA256";
private const string nameSHA256b = "SHA-256";
private const string nameSHA256c = "System.Security.Cryptography.SHA256";
private const string nameSHA384a = "SHA384";
private const string nameSHA384b = "SHA-384";
private const string nameSHA384c = "System.Security.Cryptography.SHA384";
private const string nameSHA512a = "SHA512";
private const string nameSHA512b = "SHA-512";
private const string nameSHA512c = "System.Security.Cryptography.SHA512";
private const string nameRSAa = "RSA";
private const string nameRSAb = "System.Security.Cryptography.RSA";
private const string nameRSAc = "System.Security.Cryptography.AsymmetricAlgorithm";
private const string nameDSAa = "DSA";
private const string nameDSAb = "System.Security.Cryptography.DSA";
private const string nameDESa = "DES";
private const string nameDESb = "System.Security.Cryptography.DES";
private const string name3DESa = "3DES";
private const string name3DESb = "TripleDES";
private const string name3DESc = "Triple DES";
private const string name3DESd = "System.Security.Cryptography.TripleDES";
private const string nameRC2a = "RC2";
private const string nameRC2b = "System.Security.Cryptography.RC2";
private const string nameAESa = "Rijndael";
private const string nameAESb = "System.Security.Cryptography.Rijndael";
private const string nameAESc = "System.Security.Cryptography.SymmetricAlgorithm";
// LAMESPEC: undocumented names in CryptoConfig
private const string nameRNGa = "RandomNumberGenerator";
private const string nameRNGb = "System.Security.Cryptography.RandomNumberGenerator";
private const string nameKeyHasha = "System.Security.Cryptography.KeyedHashAlgorithm";
private const string nameHMACSHA1a = "HMACSHA1";
private const string nameHMACSHA1b = "System.Security.Cryptography.HMACSHA1";
private const string nameMAC3DESa = "MACTripleDES";
private const string nameMAC3DESb = "System.Security.Cryptography.MACTripleDES";
// LAMESPEC: only documentated in ".NET Framework Security" book
private const string name3DESKeyWrap = "TripleDESKeyWrap";
private const string nameRIPEMD160a = "RIPEMD160";
private const string nameRIPEMD160b = "RIPEMD-160";
private const string nameRIPEMD160c = "System.Security.Cryptography.RIPEMD160";
// private const string nameHMACa = "HMAC";
private const string nameHMACb = "System.Security.Cryptography.HMAC";
private const string nameHMACMD5a = "HMACMD5";
private const string nameHMACMD5b = "System.Security.Cryptography.HMACMD5";
private const string nameHMACRIPEMD160a = "HMACRIPEMD160";
private const string nameHMACRIPEMD160b = "System.Security.Cryptography.HMACRIPEMD160";
private const string nameHMACSHA256a = "HMACSHA256";
private const string nameHMACSHA256b = "System.Security.Cryptography.HMACSHA256";
private const string nameHMACSHA384a = "HMACSHA384";
private const string nameHMACSHA384b = "System.Security.Cryptography.HMACSHA384";
private const string nameHMACSHA512a = "HMACSHA512";
private const string nameHMACSHA512b = "System.Security.Cryptography.HMACSHA512";
private const string urlXmlDsig = "http://www.w3.org/2000/09/xmldsig#";
// LAMESPEC: undocumented URLs in CryptoConfig
private const string urlDSASHA1 = urlXmlDsig + "dsa-sha1"; // no space
private const string urlRSASHA1 = urlXmlDsig + "rsa-sha1"; // no space
private const string urlSHA1 = urlXmlDsig + "sha1"; // no space
private const string urlC14N = "http://www.w3.org/TR/2001/REC-xml-c14n-20010315";
private const string urlC14NWithComments = "http://www.w3.org/TR/2001/REC-xml-c14n-20010315#WithComments";
private const string urlBase64 = "http://www.w3.org/2000/09/xmldsig#base64";
private const string urlXPath = "http://www.w3.org/TR/1999/REC-xpath-19991116";
private const string urlXslt = "http://www.w3.org/TR/1999/REC-xslt-19991116";
private const string urlEnveloped = urlXmlDsig + "enveloped-signature"; // no space
private const string urlXmlDecryption = "http://www.w3.org/2002/07/decrypt#XML";
private const string urlExcC14NWithComments = "http://www.w3.org/2001/10/xml-exc-c14n#WithComments";
private const string urlExcC14N = "http://www.w3.org/2001/10/xml-exc-c14n#";
private const string urlSHA256 = "http://www.w3.org/2001/04/xmlenc#sha256";
private const string urlSHA512 = "http://www.w3.org/2001/04/xmlenc#sha512";
private const string urlHMACSHA256 = "http://www.w3.org/2001/04/xmldsig-more#hmac-sha256";
private const string urlHMACSHA384 = "http://www.w3.org/2001/04/xmldsig-more#hmac-sha384";
private const string urlHMACSHA512 = "http://www.w3.org/2001/04/xmldsig-more#hmac-sha512";
private const string urlHMACRIPEMD160 = "http://www.w3.org/2001/04/xmldsig-more#hmac-ripemd160";
// LAMESPEC: only documentated in ".NET Framework Security" book
private const string urlX509Data = urlXmlDsig + " X509Data"; // space is required
private const string urlKeyName = urlXmlDsig + " KeyName"; // space is required
private const string urlKeyValueDSA = urlXmlDsig + " KeyValue/DSAKeyValue"; // space is required
private const string urlKeyValueRSA = urlXmlDsig + " KeyValue/RSAKeyValue"; // space is required
private const string urlRetrievalMethod = urlXmlDsig + " RetrievalMethod"; // space is required
// new (2.0) X509 certificate extensions
private const string oidX509SubjectKeyIdentifier = "2.5.29.14";
private const string oidX509KeyUsage = "2.5.29.15";
private const string oidX509BasicConstraints = "2.5.29.19";
private const string oidX509EnhancedKeyUsage = "2.5.29.37";
private const string nameX509SubjectKeyIdentifier = defaultNamespace + "X509Certificates.X509SubjectKeyIdentifierExtension, " + Consts.AssemblySystem;
private const string nameX509KeyUsage = defaultNamespace + "X509Certificates.X509KeyUsageExtension, " + Consts.AssemblySystem;
private const string nameX509BasicConstraints = defaultNamespace + "X509Certificates.X509BasicConstraintsExtension, " + Consts.AssemblySystem;
private const string nameX509EnhancedKeyUsage = defaultNamespace + "X509Certificates.X509EnhancedKeyUsageExtension, " + Consts.AssemblySystem;
// new (2.0) X509 Chain
private const string nameX509Chain = "X509Chain";
private const string defaultX509Chain = defaultNamespace + "X509Certificates.X509Chain, " + Consts.AssemblySystem;
static CryptoConfig ()
{
// lock(this) is bad
// http://msdn.microsoft.com/library/en-us/dnaskdr/html/askgui06032003.asp?frame=true
lockObject = new object ();
}
private static void Initialize ()
{
Hashtable algorithms = new Hashtable (new CaseInsensitiveHashCodeProvider (), new CaseInsensitiveComparer ());
// see list @ http://msdn.microsoft.com/library/en-us/cpref/html/
// frlrfSystemSecurityCryptographyCryptoConfigClassTopic.asp
algorithms.Add (nameSHA1a, defaultSHA1);
algorithms.Add (nameSHA1b, defaultSHA1);
algorithms.Add (nameSHA1c, defaultSHA1);
algorithms.Add (nameSHA1d, defaultSHA1);
algorithms.Add (nameMD5a, defaultMD5);
algorithms.Add (nameMD5b, defaultMD5);
algorithms.Add (nameSHA256a, defaultSHA256);
algorithms.Add (nameSHA256b, defaultSHA256);
algorithms.Add (nameSHA256c, defaultSHA256);
algorithms.Add (nameSHA384a, defaultSHA384);
algorithms.Add (nameSHA384b, defaultSHA384);
algorithms.Add (nameSHA384c, defaultSHA384);
algorithms.Add (nameSHA512a, defaultSHA512);
algorithms.Add (nameSHA512b, defaultSHA512);
algorithms.Add (nameSHA512c, defaultSHA512);
algorithms.Add (nameRSAa, defaultRSA);
algorithms.Add (nameRSAb, defaultRSA);
algorithms.Add (nameRSAc, defaultRSA);
algorithms.Add (nameDSAa, defaultDSA);
algorithms.Add (nameDSAb, defaultDSA);
algorithms.Add (nameDESa, defaultDES);
algorithms.Add (nameDESb, defaultDES);
algorithms.Add (name3DESa, default3DES);
algorithms.Add (name3DESb, default3DES);
algorithms.Add (name3DESc, default3DES);
algorithms.Add (name3DESd, default3DES);
algorithms.Add (nameRC2a, defaultRC2);
algorithms.Add (nameRC2b, defaultRC2);
algorithms.Add (nameAESa, defaultAES);
algorithms.Add (nameAESb, defaultAES);
// LAMESPEC SymmetricAlgorithm documented as TripleDESCryptoServiceProvider
algorithms.Add (nameAESc, defaultAES);
// LAMESPEC These names aren't documented but (hint) the classes also have
// static Create methods. So logically they should (and are) here.
algorithms.Add (nameRNGa, defaultRNG);
algorithms.Add (nameRNGb, defaultRNG);
algorithms.Add (nameKeyHasha, defaultHMAC);
algorithms.Add (nameHMACSHA1a, defaultHMAC);
algorithms.Add (nameHMACSHA1b, defaultHMAC);
algorithms.Add (nameMAC3DESa, defaultMAC3DES);
algorithms.Add (nameMAC3DESb, defaultMAC3DES);
algorithms.Add (nameRIPEMD160a, defaultRIPEMD160);
algorithms.Add (nameRIPEMD160b, defaultRIPEMD160);
algorithms.Add (nameRIPEMD160c, defaultRIPEMD160);
algorithms.Add (nameHMACb, defaultHMAC);
algorithms.Add (nameHMACMD5a, defaultHMACMD5);
algorithms.Add (nameHMACMD5b, defaultHMACMD5);
algorithms.Add (nameHMACRIPEMD160a, defaultHMACRIPEMD160);
algorithms.Add (nameHMACRIPEMD160b, defaultHMACRIPEMD160);
algorithms.Add (nameHMACSHA256a, defaultHMACSHA256);
algorithms.Add (nameHMACSHA256b, defaultHMACSHA256);
algorithms.Add (nameHMACSHA384a, defaultHMACSHA384);
algorithms.Add (nameHMACSHA384b, defaultHMACSHA384);
algorithms.Add (nameHMACSHA512a, defaultHMACSHA512);
algorithms.Add (nameHMACSHA512b, defaultHMACSHA512);
// LAMESPEC These URLs aren't documented but (hint) installing the WSDK
// add some of the XMLDSIG urls into machine.config (and they make a LOT
// of sense for implementing XMLDSIG in System.Security.Cryptography.Xml)
algorithms.Add (urlDSASHA1, defaultDSASigDesc);
algorithms.Add (urlRSASHA1, defaultRSASigDesc);
algorithms.Add (urlSHA1, defaultSHA1);
algorithms.Add (urlC14N, defaultC14N);
algorithms.Add (urlC14NWithComments, defaultC14NWithComments);
algorithms.Add (urlBase64, defaultBase64);
algorithms.Add (urlXPath, defaultXPath);
algorithms.Add (urlXslt, defaultXslt);
algorithms.Add (urlEnveloped, defaultEnveloped);
algorithms.Add (urlExcC14N, defaultExcC14N);
algorithms.Add (urlExcC14NWithComments, defaultExcC14NWithComments);
algorithms.Add (urlXmlDecryption, defaultXmlDecryption);
algorithms.Add (urlSHA256, defaultSHA256);
// xmlenc does not include a definition for SHA384
algorithms.Add (urlSHA512, defaultSHA512);
algorithms.Add (urlHMACSHA256, defaultHMACSHA256);
algorithms.Add (urlHMACSHA384, defaultHMACSHA384);
algorithms.Add (urlHMACSHA512, defaultHMACSHA512);
algorithms.Add (urlHMACRIPEMD160, defaultHMACRIPEMD160);
// LAMESPEC: only documentated in ".NET Framework Security" book
algorithms.Add (urlX509Data, defaultX509Data);
algorithms.Add (urlKeyName, defaultKeyName);
algorithms.Add (urlKeyValueDSA, defaultKeyValueDSA);
algorithms.Add (urlKeyValueRSA, defaultKeyValueRSA);
algorithms.Add (urlRetrievalMethod, defaultRetrievalMethod);
// note: X.509 extensions aren't part of OID but names
algorithms.Add (oidX509SubjectKeyIdentifier, nameX509SubjectKeyIdentifier);
algorithms.Add (oidX509KeyUsage, nameX509KeyUsage);
algorithms.Add (oidX509BasicConstraints, nameX509BasicConstraints);
algorithms.Add (oidX509EnhancedKeyUsage, nameX509EnhancedKeyUsage);
// note: the default X.509Chain can also be created this way
algorithms.Add (nameX509Chain, defaultX509Chain);
Hashtable oid = new Hashtable (new CaseInsensitiveHashCodeProvider (), new CaseInsensitiveComparer ());
// comments here are to match with MS implementation (but not with doc)
// LAMESPEC: only HashAlgorithm seems to have their OID included
oid.Add (defaultSHA1, oidSHA1);
oid.Add (managedSHA1, oidSHA1);
oid.Add (nameSHA1b, oidSHA1);
oid.Add (nameSHA1c, oidSHA1);
oid.Add (defaultMD5, oidMD5);
oid.Add (nameMD5a, oidMD5);
oid.Add (nameMD5b, oidMD5);
oid.Add (defaultSHA256, oidSHA256);
oid.Add (nameSHA256a, oidSHA256);
oid.Add (nameSHA256c, oidSHA256);
oid.Add (defaultSHA384, oidSHA384);
oid.Add (nameSHA384a, oidSHA384);
oid.Add (nameSHA384c, oidSHA384);
oid.Add (defaultSHA512, oidSHA512);
oid.Add (nameSHA512a, oidSHA512);
oid.Add (nameSHA512c, oidSHA512);
// surprise! documented in ".NET Framework Security" book
oid.Add (name3DESKeyWrap, oid3DESKeyWrap);
oid.Add (nameDESa, oidDES);
oid.Add (name3DESb, oid3DES);
oid.Add (nameRC2a, oidRC2);
// Add/modify the config as specified by machine.config
string config = Environment.GetMachineConfigPath ();
LoadConfig (config, algorithms, oid);
// update
CryptoConfig.algorithms = algorithms;
CryptoConfig.oid = oid;
}
[FileIOPermission (SecurityAction.Assert, Unrestricted = true)]
private static void LoadConfig (string filename, Hashtable algorithms, Hashtable oid)
{
if (!File.Exists (filename))
return;
try {
using (TextReader reader = new StreamReader (filename)) {
CryptoHandler handler = new CryptoHandler (algorithms, oid);
SmallXmlParser parser = new SmallXmlParser ();
parser.Parse (reader, handler);
}
}
catch {
}
}
public static object CreateFromName (string name)
{
return CreateFromName (name, null);
}
[PermissionSet (SecurityAction.LinkDemand, Unrestricted = true)]
public static object CreateFromName (string name, params object[] args)
{
if (name == null)
throw new ArgumentNullException ("name");
lock (lockObject) {
if (algorithms == null) {
Initialize ();
}
}
try {
Type algoClass = null;
string algo = (string) algorithms [name];
// do we have an entry
if (algo == null)
algo = name;
algoClass = Type.GetType (algo);
// call the constructor for the type
return Activator.CreateInstance (algoClass, args);
}
catch {
// method doesn't throw any exception
return null;
}
}
public static string MapNameToOID (string name)
{
if (name == null)
throw new ArgumentNullException ("name");
lock (lockObject) {
if (oid == null) {
Initialize ();
}
}
return (string)oid [name];
}
class CryptoHandler: SmallXmlParser.IContentHandler {
private Hashtable algorithms;
private Hashtable oid;
private Hashtable names;
private Hashtable classnames;
int level;
public CryptoHandler (Hashtable algorithms, Hashtable oid)
{
this.algorithms = algorithms;
this.oid = oid;
// temporary tables to reconstruct algorithms
names = new Hashtable ();
classnames = new Hashtable ();
}
public void OnStartParsing (SmallXmlParser parser)
{
// don't care
}
public void OnEndParsing (SmallXmlParser parser)
{
foreach (DictionaryEntry de in names) {
try {
algorithms.Add (de.Key, classnames[de.Value]);
}
catch {
}
}
// matching is done, data no more required
names.Clear ();
classnames.Clear ();
}
private string Get (SmallXmlParser.IAttrList attrs, string name)
{
for (int i = 0; i < attrs.Names.Length; i++) {
if (attrs.Names[i] == name)
return attrs.Values[i];
}
return String.Empty;
}
public void OnStartElement (string name, SmallXmlParser.IAttrList attrs)
{
switch (level) {
case 0:
if (name == "configuration")
level++;
break;
case 1:
if (name == "mscorlib")
level++;
break;
case 2:
if (name == "cryptographySettings")
level++;
break;
case 3:
if (name == "oidMap")
level++;
else if (name == "cryptoNameMapping")
level++;
break;
case 4:
if (name == "oidEntry") {
oid.Add (Get (attrs, "name"), Get (attrs, "OID"));
} else if (name == "nameEntry") {
names.Add (Get (attrs, "name"), Get (attrs, "class"));
} else if (name == "cryptoClasses") {
level++;
}
break;
case 5:
if (name == "cryptoClass")
classnames.Add (attrs.Names[0], attrs.Values[0]);
break;
}
}
public void OnEndElement (string name)
{
// parser will make sure the XML structure is respected
switch (level) {
case 1:
if (name == "configuration")
level--;
break;
case 2:
if (name == "mscorlib")
level--;
break;
case 3:
if (name == "cryptographySettings")
level--;
break;
case 4:
if ((name == "oidMap") || (name == "cryptoNameMapping"))
level--;
break;
case 5:
if (name == "cryptoClasses")
level--;
break;
}
}
public void OnProcessingInstruction (string name, string text)
{
// don't care
}
public void OnChars (string text)
{
// don't care
}
public void OnIgnorableWhitespace (string text)
{
// don't care
}
}
}
}
#endif
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