2 // CryptoConfig.cs: Handles cryptographic implementations and OIDs mappings.
5 // Sebastien Pouliot (sebastien@ximian.com)
6 // Tim Coleman (tim@timcoleman.com)
8 // (C) 2002, 2003 Motus Technologies Inc. (http://www.motus.com)
9 // Copyright (C) Tim Coleman, 2004
10 // Copyright (C) 2004-2007 Novell, Inc (http://www.novell.com)
12 // Permission is hereby granted, free of charge, to any person obtaining
13 // a copy of this software and associated documentation files (the
14 // "Software"), to deal in the Software without restriction, including
15 // without limitation the rights to use, copy, modify, merge, publish,
16 // distribute, sublicense, and/or sell copies of the Software, and to
17 // permit persons to whom the Software is furnished to do so, subject to
18 // the following conditions:
20 // The above copyright notice and this permission notice shall be
21 // included in all copies or substantial portions of the Software.
23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
32 #if !NET_2_1 || MONOTOUCH
34 using System.Collections;
35 using System.Globalization;
37 using System.Reflection;
38 using System.Runtime.CompilerServices;
39 using System.Runtime.InteropServices;
40 using System.Security.Permissions;
45 namespace System.Security.Cryptography {
48 public partial class CryptoConfig {
50 static private object lockObject;
51 static private Hashtable algorithms;
52 static private Hashtable oid;
54 private const string defaultNamespace = "System.Security.Cryptography.";
55 private const string defaultSHA1 = defaultNamespace + "SHA1CryptoServiceProvider";
56 private const string defaultMD5 = defaultNamespace + "MD5CryptoServiceProvider";
57 private const string defaultSHA256 = defaultNamespace + "SHA256Managed";
58 private const string defaultSHA384 = defaultNamespace + "SHA384Managed";
59 private const string defaultSHA512 = defaultNamespace + "SHA512Managed";
60 private const string defaultRSA = defaultNamespace + "RSACryptoServiceProvider";
61 private const string defaultDSA = defaultNamespace + "DSACryptoServiceProvider";
62 private const string defaultDES = defaultNamespace + "DESCryptoServiceProvider";
63 private const string default3DES = defaultNamespace + "TripleDESCryptoServiceProvider";
64 private const string defaultRC2 = defaultNamespace + "RC2CryptoServiceProvider";
65 private const string defaultAES = defaultNamespace + "RijndaelManaged";
66 // LAMESPEC: undocumented names in CryptoConfig
67 private const string defaultRNG = defaultNamespace + "RNGCryptoServiceProvider";
68 private const string defaultHMAC = defaultNamespace + "HMACSHA1";
69 private const string defaultMAC3DES = defaultNamespace + "MACTripleDES";
70 // LAMESPEC: undocumented classes (also undocumented in CryptoConfig ;-)
71 private const string defaultDSASigDesc = defaultNamespace + "DSASignatureDescription";
72 private const string defaultRSASigDesc = defaultNamespace + "RSAPKCS1SHA1SignatureDescription";
73 private const string defaultRIPEMD160 = defaultNamespace + "RIPEMD160Managed";
74 private const string defaultHMACMD5 = defaultNamespace + "HMACMD5";
75 private const string defaultHMACRIPEMD160 = defaultNamespace + "HMACRIPEMD160";
76 private const string defaultHMACSHA256 = defaultNamespace + "HMACSHA256";
77 private const string defaultHMACSHA384 = defaultNamespace + "HMACSHA384";
78 private const string defaultHMACSHA512 = defaultNamespace + "HMACSHA512";
80 // LAMESPEC: undocumented names in CryptoConfig
81 private const string defaultC14N = defaultNamespace + "Xml.XmlDsigC14NTransform, " + Consts.AssemblySystem_Security;
82 private const string defaultC14NWithComments = defaultNamespace + "Xml.XmlDsigC14NWithCommentsTransform, " + Consts.AssemblySystem_Security;
83 private const string defaultBase64 = defaultNamespace + "Xml.XmlDsigBase64Transform, " + Consts.AssemblySystem_Security;
84 private const string defaultXPath = defaultNamespace + "Xml.XmlDsigXPathTransform, " + Consts.AssemblySystem_Security;
85 private const string defaultXslt = defaultNamespace + "Xml.XmlDsigXsltTransform, " + Consts.AssemblySystem_Security;
86 private const string defaultEnveloped = defaultNamespace + "Xml.XmlDsigEnvelopedSignatureTransform, " + Consts.AssemblySystem_Security;
87 private const string defaultXmlDecryption = defaultNamespace + "Xml.XmlDecryptionTransform, " + Consts.AssemblySystem_Security;
88 private const string defaultExcC14N = defaultNamespace + "Xml.XmlDsigExcC14NTransform, " + Consts.AssemblySystem_Security;
89 private const string defaultExcC14NWithComments = defaultNamespace + "Xml.XmlDsigExcC14NWithCommentsTransform, " + Consts.AssemblySystem_Security;
91 // LAMESPEC: only documentated in ".NET Framework Security" book
92 private const string defaultX509Data = defaultNamespace + "Xml.KeyInfoX509Data, " + Consts.AssemblySystem_Security;
93 private const string defaultKeyName = defaultNamespace + "Xml.KeyInfoName, " + Consts.AssemblySystem_Security;
94 private const string defaultKeyValueDSA = defaultNamespace + "Xml.DSAKeyValue, " + Consts.AssemblySystem_Security;
95 private const string defaultKeyValueRSA = defaultNamespace + "Xml.RSAKeyValue, " + Consts.AssemblySystem_Security;
96 private const string defaultRetrievalMethod = defaultNamespace + "Xml.KeyInfoRetrievalMethod, " + Consts.AssemblySystem_Security;
98 private const string managedSHA1 = defaultNamespace + "SHA1Managed";
100 // Oddly OID seems only available for hash algorithms
101 private const string oidSHA1 = "1.3.14.3.2.26";
102 private const string oidMD5 = "1.2.840.113549.2.5";
104 private const string oidSHA256 = "2.16.840.1.101.3.4.2.1";
105 private const string oidSHA384 = "2.16.840.1.101.3.4.2.2";
106 private const string oidSHA512 = "2.16.840.1.101.3.4.2.3";
108 // private const string oidRSA = "1.2.840.113549.1.1.1";
109 // private const string oidDSA = "1.2.840.10040.4.1";
110 private const string oidDES = "1.3.14.3.2.7";
111 private const string oid3DES = "1.2.840.113549.3.7";
112 private const string oidRC2 = "1.2.840.113549.3.2";
113 // LAMESPEC: only documentated in ".NET Framework Security" book
114 private const string oid3DESKeyWrap = "1.2.840.113549.1.9.16.3.6";
116 private const string nameSHA1a = "SHA";
117 private const string nameSHA1b = "SHA1";
118 private const string nameSHA1c = "System.Security.Cryptography.SHA1";
119 private const string nameSHA1d = "System.Security.Cryptography.HashAlgorithm";
120 private const string nameMD5a = "MD5";
121 private const string nameMD5b = "System.Security.Cryptography.MD5";
122 private const string nameSHA256a = "SHA256";
123 private const string nameSHA256b = "SHA-256";
124 private const string nameSHA256c = "System.Security.Cryptography.SHA256";
125 private const string nameSHA384a = "SHA384";
126 private const string nameSHA384b = "SHA-384";
127 private const string nameSHA384c = "System.Security.Cryptography.SHA384";
128 private const string nameSHA512a = "SHA512";
129 private const string nameSHA512b = "SHA-512";
130 private const string nameSHA512c = "System.Security.Cryptography.SHA512";
131 private const string nameRSAa = "RSA";
132 private const string nameRSAb = "System.Security.Cryptography.RSA";
133 private const string nameRSAc = "System.Security.Cryptography.AsymmetricAlgorithm";
134 private const string nameDSAa = "DSA";
135 private const string nameDSAb = "System.Security.Cryptography.DSA";
136 private const string nameDESa = "DES";
137 private const string nameDESb = "System.Security.Cryptography.DES";
138 private const string name3DESa = "3DES";
139 private const string name3DESb = "TripleDES";
140 private const string name3DESc = "Triple DES";
141 private const string name3DESd = "System.Security.Cryptography.TripleDES";
142 private const string nameRC2a = "RC2";
143 private const string nameRC2b = "System.Security.Cryptography.RC2";
144 private const string nameAESa = "Rijndael";
145 private const string nameAESb = "System.Security.Cryptography.Rijndael";
146 private const string nameAESc = "System.Security.Cryptography.SymmetricAlgorithm";
147 // LAMESPEC: undocumented names in CryptoConfig
148 private const string nameRNGa = "RandomNumberGenerator";
149 private const string nameRNGb = "System.Security.Cryptography.RandomNumberGenerator";
150 private const string nameKeyHasha = "System.Security.Cryptography.KeyedHashAlgorithm";
151 private const string nameHMACSHA1a = "HMACSHA1";
152 private const string nameHMACSHA1b = "System.Security.Cryptography.HMACSHA1";
153 private const string nameMAC3DESa = "MACTripleDES";
154 private const string nameMAC3DESb = "System.Security.Cryptography.MACTripleDES";
155 // LAMESPEC: only documentated in ".NET Framework Security" book
156 private const string name3DESKeyWrap = "TripleDESKeyWrap";
157 private const string nameRIPEMD160a = "RIPEMD160";
158 private const string nameRIPEMD160b = "RIPEMD-160";
159 private const string nameRIPEMD160c = "System.Security.Cryptography.RIPEMD160";
160 // private const string nameHMACa = "HMAC";
161 private const string nameHMACb = "System.Security.Cryptography.HMAC";
162 private const string nameHMACMD5a = "HMACMD5";
163 private const string nameHMACMD5b = "System.Security.Cryptography.HMACMD5";
164 private const string nameHMACRIPEMD160a = "HMACRIPEMD160";
165 private const string nameHMACRIPEMD160b = "System.Security.Cryptography.HMACRIPEMD160";
166 private const string nameHMACSHA256a = "HMACSHA256";
167 private const string nameHMACSHA256b = "System.Security.Cryptography.HMACSHA256";
168 private const string nameHMACSHA384a = "HMACSHA384";
169 private const string nameHMACSHA384b = "System.Security.Cryptography.HMACSHA384";
170 private const string nameHMACSHA512a = "HMACSHA512";
171 private const string nameHMACSHA512b = "System.Security.Cryptography.HMACSHA512";
173 private const string urlXmlDsig = "http://www.w3.org/2000/09/xmldsig#";
174 // LAMESPEC: undocumented URLs in CryptoConfig
175 private const string urlDSASHA1 = urlXmlDsig + "dsa-sha1"; // no space
176 private const string urlRSASHA1 = urlXmlDsig + "rsa-sha1"; // no space
177 private const string urlSHA1 = urlXmlDsig + "sha1"; // no space
178 private const string urlC14N = "http://www.w3.org/TR/2001/REC-xml-c14n-20010315";
179 private const string urlC14NWithComments = "http://www.w3.org/TR/2001/REC-xml-c14n-20010315#WithComments";
180 private const string urlBase64 = "http://www.w3.org/2000/09/xmldsig#base64";
181 private const string urlXPath = "http://www.w3.org/TR/1999/REC-xpath-19991116";
182 private const string urlXslt = "http://www.w3.org/TR/1999/REC-xslt-19991116";
183 private const string urlEnveloped = urlXmlDsig + "enveloped-signature"; // no space
184 private const string urlXmlDecryption = "http://www.w3.org/2002/07/decrypt#XML";
185 private const string urlExcC14NWithComments = "http://www.w3.org/2001/10/xml-exc-c14n#WithComments";
186 private const string urlExcC14N = "http://www.w3.org/2001/10/xml-exc-c14n#";
187 private const string urlSHA256 = "http://www.w3.org/2001/04/xmlenc#sha256";
188 private const string urlSHA512 = "http://www.w3.org/2001/04/xmlenc#sha512";
189 private const string urlHMACSHA256 = "http://www.w3.org/2001/04/xmldsig-more#hmac-sha256";
190 private const string urlHMACSHA384 = "http://www.w3.org/2001/04/xmldsig-more#hmac-sha384";
191 private const string urlHMACSHA512 = "http://www.w3.org/2001/04/xmldsig-more#hmac-sha512";
192 private const string urlHMACRIPEMD160 = "http://www.w3.org/2001/04/xmldsig-more#hmac-ripemd160";
194 // LAMESPEC: only documentated in ".NET Framework Security" book
195 private const string urlX509Data = urlXmlDsig + " X509Data"; // space is required
196 private const string urlKeyName = urlXmlDsig + " KeyName"; // space is required
197 private const string urlKeyValueDSA = urlXmlDsig + " KeyValue/DSAKeyValue"; // space is required
198 private const string urlKeyValueRSA = urlXmlDsig + " KeyValue/RSAKeyValue"; // space is required
199 private const string urlRetrievalMethod = urlXmlDsig + " RetrievalMethod"; // space is required
201 // new (2.0) X509 certificate extensions
202 private const string oidX509SubjectKeyIdentifier = "2.5.29.14";
203 private const string oidX509KeyUsage = "2.5.29.15";
204 private const string oidX509BasicConstraints = "2.5.29.19";
205 private const string oidX509EnhancedKeyUsage = "2.5.29.37";
207 private const string nameX509SubjectKeyIdentifier = defaultNamespace + "X509Certificates.X509SubjectKeyIdentifierExtension, " + Consts.AssemblySystem;
208 private const string nameX509KeyUsage = defaultNamespace + "X509Certificates.X509KeyUsageExtension, " + Consts.AssemblySystem;
209 private const string nameX509BasicConstraints = defaultNamespace + "X509Certificates.X509BasicConstraintsExtension, " + Consts.AssemblySystem;
210 private const string nameX509EnhancedKeyUsage = defaultNamespace + "X509Certificates.X509EnhancedKeyUsageExtension, " + Consts.AssemblySystem;
212 // new (2.0) X509 Chain
213 private const string nameX509Chain = "X509Chain";
214 private const string defaultX509Chain = defaultNamespace + "X509Certificates.X509Chain, " + Consts.AssemblySystem;
216 static CryptoConfig ()
219 // http://msdn.microsoft.com/library/en-us/dnaskdr/html/askgui06032003.asp?frame=true
220 lockObject = new object ();
223 private static void Initialize ()
225 Hashtable algorithms = new Hashtable (new CaseInsensitiveHashCodeProvider (), new CaseInsensitiveComparer ());
226 // see list @ http://msdn.microsoft.com/library/en-us/cpref/html/
227 // frlrfSystemSecurityCryptographyCryptoConfigClassTopic.asp
228 algorithms.Add (nameSHA1a, defaultSHA1);
229 algorithms.Add (nameSHA1b, defaultSHA1);
230 algorithms.Add (nameSHA1c, defaultSHA1);
231 algorithms.Add (nameSHA1d, defaultSHA1);
233 algorithms.Add (nameMD5a, defaultMD5);
234 algorithms.Add (nameMD5b, defaultMD5);
236 algorithms.Add (nameSHA256a, defaultSHA256);
237 algorithms.Add (nameSHA256b, defaultSHA256);
238 algorithms.Add (nameSHA256c, defaultSHA256);
240 algorithms.Add (nameSHA384a, defaultSHA384);
241 algorithms.Add (nameSHA384b, defaultSHA384);
242 algorithms.Add (nameSHA384c, defaultSHA384);
244 algorithms.Add (nameSHA512a, defaultSHA512);
245 algorithms.Add (nameSHA512b, defaultSHA512);
246 algorithms.Add (nameSHA512c, defaultSHA512);
248 algorithms.Add (nameRSAa, defaultRSA);
249 algorithms.Add (nameRSAb, defaultRSA);
250 algorithms.Add (nameRSAc, defaultRSA);
252 algorithms.Add (nameDSAa, defaultDSA);
253 algorithms.Add (nameDSAb, defaultDSA);
255 algorithms.Add (nameDESa, defaultDES);
256 algorithms.Add (nameDESb, defaultDES);
258 algorithms.Add (name3DESa, default3DES);
259 algorithms.Add (name3DESb, default3DES);
260 algorithms.Add (name3DESc, default3DES);
261 algorithms.Add (name3DESd, default3DES);
263 algorithms.Add (nameRC2a, defaultRC2);
264 algorithms.Add (nameRC2b, defaultRC2);
266 algorithms.Add (nameAESa, defaultAES);
267 algorithms.Add (nameAESb, defaultAES);
268 // LAMESPEC SymmetricAlgorithm documented as TripleDESCryptoServiceProvider
269 algorithms.Add (nameAESc, defaultAES);
271 // LAMESPEC These names aren't documented but (hint) the classes also have
272 // static Create methods. So logically they should (and are) here.
273 algorithms.Add (nameRNGa, defaultRNG);
274 algorithms.Add (nameRNGb, defaultRNG);
275 algorithms.Add (nameKeyHasha, defaultHMAC);
276 algorithms.Add (nameHMACSHA1a, defaultHMAC);
277 algorithms.Add (nameHMACSHA1b, defaultHMAC);
278 algorithms.Add (nameMAC3DESa, defaultMAC3DES);
279 algorithms.Add (nameMAC3DESb, defaultMAC3DES);
280 algorithms.Add (nameRIPEMD160a, defaultRIPEMD160);
281 algorithms.Add (nameRIPEMD160b, defaultRIPEMD160);
282 algorithms.Add (nameRIPEMD160c, defaultRIPEMD160);
283 algorithms.Add (nameHMACb, defaultHMAC);
284 algorithms.Add (nameHMACMD5a, defaultHMACMD5);
285 algorithms.Add (nameHMACMD5b, defaultHMACMD5);
286 algorithms.Add (nameHMACRIPEMD160a, defaultHMACRIPEMD160);
287 algorithms.Add (nameHMACRIPEMD160b, defaultHMACRIPEMD160);
288 algorithms.Add (nameHMACSHA256a, defaultHMACSHA256);
289 algorithms.Add (nameHMACSHA256b, defaultHMACSHA256);
290 algorithms.Add (nameHMACSHA384a, defaultHMACSHA384);
291 algorithms.Add (nameHMACSHA384b, defaultHMACSHA384);
292 algorithms.Add (nameHMACSHA512a, defaultHMACSHA512);
293 algorithms.Add (nameHMACSHA512b, defaultHMACSHA512);
295 // LAMESPEC These URLs aren't documented but (hint) installing the WSDK
296 // add some of the XMLDSIG urls into machine.config (and they make a LOT
297 // of sense for implementing XMLDSIG in System.Security.Cryptography.Xml)
298 algorithms.Add (urlDSASHA1, defaultDSASigDesc);
299 algorithms.Add (urlRSASHA1, defaultRSASigDesc);
300 algorithms.Add (urlSHA1, defaultSHA1);
301 algorithms.Add (urlC14N, defaultC14N);
302 algorithms.Add (urlC14NWithComments, defaultC14NWithComments);
303 algorithms.Add (urlBase64, defaultBase64);
304 algorithms.Add (urlXPath, defaultXPath);
305 algorithms.Add (urlXslt, defaultXslt);
306 algorithms.Add (urlEnveloped, defaultEnveloped);
307 algorithms.Add (urlExcC14N, defaultExcC14N);
308 algorithms.Add (urlExcC14NWithComments, defaultExcC14NWithComments);
309 algorithms.Add (urlXmlDecryption, defaultXmlDecryption);
310 algorithms.Add (urlSHA256, defaultSHA256);
311 // xmlenc does not include a definition for SHA384
312 algorithms.Add (urlSHA512, defaultSHA512);
313 algorithms.Add (urlHMACSHA256, defaultHMACSHA256);
314 algorithms.Add (urlHMACSHA384, defaultHMACSHA384);
315 algorithms.Add (urlHMACSHA512, defaultHMACSHA512);
316 algorithms.Add (urlHMACRIPEMD160, defaultHMACRIPEMD160);
317 // LAMESPEC: only documentated in ".NET Framework Security" book
318 algorithms.Add (urlX509Data, defaultX509Data);
319 algorithms.Add (urlKeyName, defaultKeyName);
320 algorithms.Add (urlKeyValueDSA, defaultKeyValueDSA);
321 algorithms.Add (urlKeyValueRSA, defaultKeyValueRSA);
322 algorithms.Add (urlRetrievalMethod, defaultRetrievalMethod);
324 // note: X.509 extensions aren't part of OID but names
325 algorithms.Add (oidX509SubjectKeyIdentifier, nameX509SubjectKeyIdentifier);
326 algorithms.Add (oidX509KeyUsage, nameX509KeyUsage);
327 algorithms.Add (oidX509BasicConstraints, nameX509BasicConstraints);
328 algorithms.Add (oidX509EnhancedKeyUsage, nameX509EnhancedKeyUsage);
329 // note: the default X.509Chain can also be created this way
330 algorithms.Add (nameX509Chain, defaultX509Chain);
332 Hashtable oid = new Hashtable (new CaseInsensitiveHashCodeProvider (), new CaseInsensitiveComparer ());
334 // comments here are to match with MS implementation (but not with doc)
335 // LAMESPEC: only HashAlgorithm seems to have their OID included
336 oid.Add (defaultSHA1, oidSHA1);
337 oid.Add (managedSHA1, oidSHA1);
338 oid.Add (nameSHA1b, oidSHA1);
339 oid.Add (nameSHA1c, oidSHA1);
341 oid.Add (defaultMD5, oidMD5);
342 oid.Add (nameMD5a, oidMD5);
343 oid.Add (nameMD5b, oidMD5);
345 oid.Add (defaultSHA256, oidSHA256);
346 oid.Add (nameSHA256a, oidSHA256);
347 oid.Add (nameSHA256c, oidSHA256);
349 oid.Add (defaultSHA384, oidSHA384);
350 oid.Add (nameSHA384a, oidSHA384);
351 oid.Add (nameSHA384c, oidSHA384);
353 oid.Add (defaultSHA512, oidSHA512);
354 oid.Add (nameSHA512a, oidSHA512);
355 oid.Add (nameSHA512c, oidSHA512);
357 // surprise! documented in ".NET Framework Security" book
358 oid.Add (name3DESKeyWrap, oid3DESKeyWrap);
360 oid.Add (nameDESa, oidDES);
361 oid.Add (name3DESb, oid3DES);
362 oid.Add (nameRC2a, oidRC2);
364 // Add/modify the config as specified by machine.config
365 string config = Environment.GetMachineConfigPath ();
366 LoadConfig (config, algorithms, oid);
369 CryptoConfig.algorithms = algorithms;
370 CryptoConfig.oid = oid;
373 [FileIOPermission (SecurityAction.Assert, Unrestricted = true)]
374 private static void LoadConfig (string filename, Hashtable algorithms, Hashtable oid)
376 if (!File.Exists (filename))
380 using (TextReader reader = new StreamReader (filename)) {
381 CryptoHandler handler = new CryptoHandler (algorithms, oid);
382 SmallXmlParser parser = new SmallXmlParser ();
383 parser.Parse (reader, handler);
390 public static object CreateFromName (string name)
392 return CreateFromName (name, null);
395 [PermissionSet (SecurityAction.LinkDemand, Unrestricted = true)]
396 public static object CreateFromName (string name, params object[] args)
399 throw new ArgumentNullException ("name");
402 if (algorithms == null) {
408 Type algoClass = null;
409 string algo = (string) algorithms [name];
410 // do we have an entry
413 algoClass = Type.GetType (algo);
414 // call the constructor for the type
415 return Activator.CreateInstance (algoClass, args);
418 // method doesn't throw any exception
423 public static string MapNameToOID (string name)
426 throw new ArgumentNullException ("name");
434 return (string)oid [name];
437 class CryptoHandler: SmallXmlParser.IContentHandler {
439 private Hashtable algorithms;
440 private Hashtable oid;
441 private Hashtable names;
442 private Hashtable classnames;
445 public CryptoHandler (Hashtable algorithms, Hashtable oid)
447 this.algorithms = algorithms;
449 // temporary tables to reconstruct algorithms
450 names = new Hashtable ();
451 classnames = new Hashtable ();
454 public void OnStartParsing (SmallXmlParser parser)
459 public void OnEndParsing (SmallXmlParser parser)
461 foreach (DictionaryEntry de in names) {
463 algorithms.Add (de.Key, classnames[de.Value]);
468 // matching is done, data no more required
473 private string Get (SmallXmlParser.IAttrList attrs, string name)
475 for (int i = 0; i < attrs.Names.Length; i++) {
476 if (attrs.Names[i] == name)
477 return attrs.Values[i];
482 public void OnStartElement (string name, SmallXmlParser.IAttrList attrs)
486 if (name == "configuration")
490 if (name == "mscorlib")
494 if (name == "cryptographySettings")
498 if (name == "oidMap")
500 else if (name == "cryptoNameMapping")
504 if (name == "oidEntry") {
505 oid.Add (Get (attrs, "name"), Get (attrs, "OID"));
506 } else if (name == "nameEntry") {
507 names.Add (Get (attrs, "name"), Get (attrs, "class"));
508 } else if (name == "cryptoClasses") {
513 if (name == "cryptoClass")
514 classnames.Add (attrs.Names[0], attrs.Values[0]);
519 public void OnEndElement (string name)
521 // parser will make sure the XML structure is respected
524 if (name == "configuration")
528 if (name == "mscorlib")
532 if (name == "cryptographySettings")
536 if ((name == "oidMap") || (name == "cryptoNameMapping"))
540 if (name == "cryptoClasses")
546 public void OnProcessingInstruction (string name, string text)
551 public void OnChars (string text)
556 public void OnIgnorableWhitespace (string text)