summaryrefslogtreecommitdiffstats
path: root/kopete/protocols/jabber/libiris/qca/src/qca.h
blob: 7a8a3af4eb64416cd0a099923102df19e0fa5065 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
/*
 * qca.h - TQt Cryptographic Architecture
 * Copyright (C) 2003  Justin Karneges
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */

#ifndef TQCA_H
#define TQCA_H

#include <tqstring.h>
#include <tqcstring.h>
#include <tqdatetime.h>
#include <tqmap.h>
#include <tqptrlist.h>
#include <tqobject.h>

#ifdef Q_OS_WIN32
#  ifndef TQCA_STATIC
#    ifdef TQCA_MAKEDLL
#      define TQCA_EXPORT __declspec(dllexport)
#    else
#      define TQCA_EXPORT __declspec(dllimport)
#    endif
#  endif
#endif
#ifndef TQCA_EXPORT
#define TQCA_EXPORT
#endif

#ifdef Q_OS_WIN32
#  ifdef TQCA_PLUGIN_DLL
#    define TQCA_PLUGIN_EXPORT extern "C" __declspec(dllexport)
#  else
#    define TQCA_PLUGIN_EXPORT extern "C" __declspec(dllimport)
#  endif
#endif
#ifndef TQCA_PLUGIN_EXPORT
#define TQCA_PLUGIN_EXPORT extern "C"
#endif

class TQHostAddress;
class TQStringList;

class TQCAProvider;
class TQCA_HashContext;
class TQCA_CipherContext;
class TQCA_CertContext;

namespace TQCA
{
	enum {
		CAP_SHA1      = 0x0001,
		CAP_SHA256    = 0x0002,
		CAP_MD5       = 0x0004,
		CAP_BlowFish  = 0x0008,
		CAP_TripleDES = 0x0010,
		CAP_AES128    = 0x0020,
		CAP_AES256    = 0x0040,
		CAP_RSA       = 0x0080,
		CAP_X509      = 0x0100,
		CAP_TLS       = 0x0200,
		CAP_SASL      = 0x0400
	};

	enum {
		CBC = 0x0001,
		CFB = 0x0002
	};

	enum {
		Encrypt = 0x0001,
		Decrypt = 0x0002
	};

	TQCA_EXPORT void init();
	TQCA_EXPORT bool isSupported(int capabilities);
	TQCA_EXPORT void insertProvider(TQCAProvider *);
	TQCA_EXPORT void unloadAllPlugins();

	TQCA_EXPORT TQString arrayToHex(const TQByteArray &);
	TQCA_EXPORT TQByteArray hexToArray(const TQString &);

	class TQCA_EXPORT Hash
	{
	public:
		Hash(const Hash &);
		Hash & operator=(const Hash &);
		~Hash();

		void clear();
		void update(const TQByteArray &a);
		TQByteArray final();

	protected:
		Hash(TQCA_HashContext *);

	private:
		class Private;
		Private *d;
	};

	template <class T>
	class TQCA_EXPORT HashStatic
	{
	public:
		HashStatic<T>() {}

		static TQByteArray hash(const TQByteArray &a)
		{
			T obj;
			obj.update(a);
			return obj.final();
		}

		static TQByteArray hash(const TQCString &cs)
		{
			TQByteArray a(cs.length());
			memcpy(a.data(), cs.data(), a.size());
			return hash(a);
		}

		static TQString hashToString(const TQByteArray &a)
		{
			return arrayToHex(hash(a));
		}

		static TQString hashToString(const TQCString &cs)
		{
			return arrayToHex(hash(cs));
		}
	};

	class TQCA_EXPORT Cipher
	{
	public:
		Cipher(const Cipher &);
		Cipher & operator=(const Cipher &);
		~Cipher();

		TQByteArray dyn_generateKey(int size=-1) const;
		TQByteArray dyn_generateIV() const;
		void reset(int dir, int mode, const TQByteArray &key, const TQByteArray &iv, bool pad=true);
		bool update(const TQByteArray &a);
		TQByteArray final(bool *ok=0);

	protected:
		Cipher(TQCA_CipherContext *, int dir, int mode, const TQByteArray &key, const TQByteArray &iv, bool pad);

	private:
		class Private;
		Private *d;
	};

	template <class T>
	class TQCA_EXPORT CipherStatic
	{
	public:
		CipherStatic<T>() {}

		static TQByteArray generateKey(int size=-1)
		{
			T obj;
			return obj.dyn_generateKey(size);
		}

		static TQByteArray generateIV()
		{
			T obj;
			return obj.dyn_generateIV();
		}
	};

	class TQCA_EXPORT SHA1 : public Hash, public HashStatic<SHA1>
	{
	public:
		SHA1();
	};

	class TQCA_EXPORT SHA256 : public Hash, public HashStatic<SHA256>
	{
	public:
		SHA256();
	};

	class TQCA_EXPORT MD5 : public Hash, public HashStatic<MD5>
	{
	public:
		MD5();
	};

	class TQCA_EXPORT BlowFish : public Cipher, public CipherStatic<BlowFish>
	{
	public:
		BlowFish(int dir=Encrypt, int mode=CBC, const TQByteArray &key=TQByteArray(), const TQByteArray &iv=TQByteArray(), bool pad=true);
	};

	class TQCA_EXPORT TripleDES : public Cipher, public CipherStatic<TripleDES>
	{
	public:
		TripleDES(int dir=Encrypt, int mode=CBC, const TQByteArray &key=TQByteArray(), const TQByteArray &iv=TQByteArray(), bool pad=true);
	};

	class TQCA_EXPORT AES128 : public Cipher, public CipherStatic<AES128>
	{
	public:
		AES128(int dir=Encrypt, int mode=CBC, const TQByteArray &key=TQByteArray(), const TQByteArray &iv=TQByteArray(), bool pad=true);
	};

	class TQCA_EXPORT AES256 : public Cipher, public CipherStatic<AES256>
	{
	public:
		AES256(int dir=Encrypt, int mode=CBC, const TQByteArray &key=TQByteArray(), const TQByteArray &iv=TQByteArray(), bool pad=true);
	};

	class RSA;
	class TQCA_EXPORT RSAKey
	{
	public:
		RSAKey();
		RSAKey(const RSAKey &from);
		RSAKey & operator=(const RSAKey &from);
		~RSAKey();

		bool isNull() const;
		bool havePublic() const;
		bool havePrivate() const;

		TQByteArray toDER(bool publicOnly=false) const;
		bool fromDER(const TQByteArray &a);

		TQString toPEM(bool publicOnly=false) const;
		bool fromPEM(const TQString &);

		// only call if you know what you are doing
		bool fromNative(void *);

	private:
		class Private;
		Private *d;

		friend class RSA;
		friend class TLS;
		bool encrypt(const TQByteArray &a, TQByteArray *out, bool oaep) const;
		bool decrypt(const TQByteArray &a, TQByteArray *out, bool oaep) const;
		bool generate(unsigned int bits);
	};

	class TQCA_EXPORT RSA
	{
	public:
		RSA();
		~RSA();

		RSAKey key() const;
		void setKey(const RSAKey &);

		bool encrypt(const TQByteArray &a, TQByteArray *out, bool oaep=false) const;
		bool decrypt(const TQByteArray &a, TQByteArray *out, bool oaep=false) const;

		static RSAKey generateKey(unsigned int bits);

	private:
		RSAKey v_key;
	};

	typedef TQMap<TQString, TQString> CertProperties;
	class TQCA_EXPORT Cert
	{
	public:
		Cert();
		Cert(const Cert &);
		Cert & operator=(const Cert &);
		~Cert();

		bool isNull() const;

		TQString commonName() const;
		TQString serialNumber() const;
		TQString subjectString() const;
		TQString issuerString() const;
		CertProperties subject() const;
		CertProperties issuer() const;
		TQDateTime notBefore() const;
		TQDateTime notAfter() const;

		TQByteArray toDER() const;
		bool fromDER(const TQByteArray &a);

		TQString toPEM() const;
		bool fromPEM(const TQString &);

	private:
		class Private;
		Private *d;

		friend class TLS;
		void fromContext(TQCA_CertContext *);
	};

	class TQCA_EXPORT TLS : public TQObject
	{
		Q_OBJECT
  
	public:
		enum Validity {
			NoCert,
			Valid,
			HostMismatch,
			Rejected,
			Untrusted,
			SignatureFailed,
			InvalidCA,
			InvalidPurpose,
			SelfSigned,
			Revoked,
			PathLengthExceeded,
			Expired,
			Unknown
		};
		enum Error { ErrHandshake, ErrCrypt };

		TLS(TQObject *parent=0);
		~TLS();

		void setCertificate(const Cert &cert, const RSAKey &key);
		void setCertificateStore(const TQPtrList<Cert> &store);  // note: store must persist

		void reset();
		bool startClient(const TQString &host="");
		bool startServer();
		void close();
		bool isHandshaken() const;

		// plain (application side)
		void write(const TQByteArray &a);
		TQByteArray read();

		// encoded (socket side)
		void writeIncoming(const TQByteArray &a);
		TQByteArray readOutgoing();
		TQByteArray readUnprocessed();

		// cert related
		const Cert & peerCertificate() const;
		int certificateValidityResult() const;

	signals:
		void handshaken();
		void readyRead();
		void readyReadOutgoing(int plainBytes);
		void closed();
		void error(int);

	private slots:
		void update();

	private:
		class Private;
		Private *d;
	};

	class TQCA_EXPORT SASL : public TQObject
	{
		Q_OBJECT
  
	public:
		enum Error { ErrAuth, ErrCrypt };
		enum ErrorCond {
			NoMech,
			BadProto,
			BadServ,
			BadAuth,
			NoAuthzid,
			TooWeak,
			NeedEncrypt,
			Expired,
			Disabled,
			NoUser,
			RemoteUnavail
		};
		SASL(TQObject *parent=0);
		~SASL();

		static void setAppName(const TQString &name);

		void reset();
		int errorCondition() const;

		// options
		void setAllowPlain(bool);
		void setAllowAnonymous(bool);
		void setAllowActiveVulnerable(bool);
		void setAllowDictionaryVulnerable(bool);
		void setRequireForwardSecrecy(bool);
		void setRequirePassCredentials(bool);
		void setRequireMutualAuth(bool);

		void setMinimumSSF(int);
		void setMaximumSSF(int);
		void setExternalAuthID(const TQString &authid);
		void setExternalSSF(int);

		void setLocalAddr(const TQHostAddress &addr, TQ_UINT16 port);
		void setRemoteAddr(const TQHostAddress &addr, TQ_UINT16 port);

		// initialize
		bool startClient(const TQString &service, const TQString &host, const TQStringList &mechlist, bool allowClientSendFirst=true);
		bool startServer(const TQString &service, const TQString &host, const TQString &realm, TQStringList *mechlist);

		// authentication
		void putStep(const TQByteArray &stepData);
		void putServerFirstStep(const TQString &mech);
		void putServerFirstStep(const TQString &mech, const TQByteArray &clientInit);
		void setUsername(const TQString &user);
		void setAuthzid(const TQString &auth);
		void setPassword(const TQString &pass);
		void setRealm(const TQString &realm);
		void continueAfterParams();
		void continueAfterAuthCheck();

		// security layer
		int ssf() const;
		void write(const TQByteArray &a);
		TQByteArray read();
		void writeIncoming(const TQByteArray &a);
		TQByteArray readOutgoing();

	signals:
		// for authentication
		void clientFirstStep(const TQString &mech, const TQByteArray *clientInit);
		void nextStep(const TQByteArray &stepData);
		void needParams(bool user, bool authzid, bool pass, bool realm);
		void authCheck(const TQString &user, const TQString &authzid);
		void authenticated();

		// for security layer
		void readyRead();
		void readyReadOutgoing(int plainBytes);

		// error
		void error(int);

	private slots:
		void tryAgain();

	private:
		class Private;
		Private *d;

		void handleServerFirstStep(int r);
	};
}

#endif