Crypto++ 8.0 Free C++ class library of cryptographic schemes

cryptlib.cpp
1 // cryptlib.cpp - originally written and placed in the public domain by Wei Dai
2
3 #include "pch.h"
4 #include "config.h"
5
6 #if CRYPTOPP_MSC_VERSION
7 # pragma warning(disable: 4127 4189 4459)
8 #endif
9
10 #if CRYPTOPP_GCC_DIAGNOSTIC_AVAILABLE
11 # pragma GCC diagnostic ignored "-Wunused-value"
12 # pragma GCC diagnostic ignored "-Wunused-variable"
13 # pragma GCC diagnostic ignored "-Wunused-parameter"
14 #endif
15
16 #ifndef CRYPTOPP_IMPORTS
17
18 #include "cryptlib.h"
19 #include "misc.h"
20 #include "filters.h"
21 #include "algparam.h"
22 #include "fips140.h"
23 #include "argnames.h"
24 #include "fltrimpl.h"
25 #include "osrng.h"
26 #include "secblock.h"
27 #include "smartptr.h"
28 #include "stdcpp.h"
29
30 NAMESPACE_BEGIN(CryptoPP)
31
32 CRYPTOPP_COMPILE_ASSERT(sizeof(byte) == 1);
33 CRYPTOPP_COMPILE_ASSERT(sizeof(word16) == 2);
34 CRYPTOPP_COMPILE_ASSERT(sizeof(word32) == 4);
35 CRYPTOPP_COMPILE_ASSERT(sizeof(word64) == 8);
36 #ifdef CRYPTOPP_NATIVE_DWORD_AVAILABLE
37 CRYPTOPP_COMPILE_ASSERT(sizeof(dword) == 2*sizeof(word));
38 #endif
39
40 BufferedTransformation & TheBitBucket()
41 {
42 static BitBucket bitBucket;
43 return bitBucket;
44 }
45
46 Algorithm::Algorithm(bool checkSelfTestStatus)
47 {
48 if (checkSelfTestStatus && FIPS_140_2_ComplianceEnabled())
49 {
50 if (GetPowerUpSelfTestStatus() == POWER_UP_SELF_TEST_NOT_DONE && !PowerUpSelfTestInProgressOnThisThread())
51 throw SelfTestFailure("Cryptographic algorithms are disabled before the power-up self tests are performed.");
52
53 if (GetPowerUpSelfTestStatus() == POWER_UP_SELF_TEST_FAILED)
54 throw SelfTestFailure("Cryptographic algorithms are disabled after a power-up self test failed.");
55 }
56 }
57
58 void SimpleKeyingInterface::SetKey(const byte *key, size_t length, const NameValuePairs &params)
59 {
60 this->ThrowIfInvalidKeyLength(length);
61 this->UncheckedSetKey(key, static_cast<unsigned int>(length), params);
62 }
63
64 void SimpleKeyingInterface::SetKeyWithRounds(const byte *key, size_t length, int rounds)
65 {
66 SetKey(key, length, MakeParameters(Name::Rounds(), rounds));
67 }
68
69 void SimpleKeyingInterface::SetKeyWithIV(const byte *key, size_t length, const byte *iv, size_t ivLength)
70 {
71 SetKey(key, length, MakeParameters(Name::IV(), ConstByteArrayParameter(iv, ivLength)));
72 }
73
74 void SimpleKeyingInterface::ThrowIfInvalidKeyLength(size_t length)
75 {
76 if (!IsValidKeyLength(length))
77 throw InvalidKeyLength(GetAlgorithm().AlgorithmName(), length);
78 }
79
80 void SimpleKeyingInterface::ThrowIfResynchronizable()
81 {
82 if (IsResynchronizable())
83 throw InvalidArgument(GetAlgorithm().AlgorithmName() + ": this object requires an IV");
84 }
85
86 void SimpleKeyingInterface::ThrowIfInvalidIV(const byte *iv)
87 {
88 if (!iv && IVRequirement() == UNPREDICTABLE_RANDOM_IV)
89 throw InvalidArgument(GetAlgorithm().AlgorithmName() + ": this object cannot use a null IV");
90 }
91
92 size_t SimpleKeyingInterface::ThrowIfInvalidIVLength(int length)
93 {
94 size_t size = 0;
95 if (length < 0)
96 size = static_cast<size_t>(IVSize());
97 else if ((size_t)length < MinIVLength())
98 throw InvalidArgument(GetAlgorithm().AlgorithmName() + ": IV length " + IntToString(length) + " is less than the minimum of " + IntToString(MinIVLength()));
99 else if ((size_t)length > MaxIVLength())
100 throw InvalidArgument(GetAlgorithm().AlgorithmName() + ": IV length " + IntToString(length) + " exceeds the maximum of " + IntToString(MaxIVLength()));
101 else
102 size = static_cast<size_t>(length);
103
104 return size;
105 }
106
107 const byte * SimpleKeyingInterface::GetIVAndThrowIfInvalid(const NameValuePairs &params, size_t &size)
108 {
109 ConstByteArrayParameter ivWithLength;
110 const byte *iv = NULLPTR;
111 bool found = false;
112
113 try {found = params.GetValue(Name::IV(), ivWithLength);}
114 catch (const NameValuePairs::ValueTypeMismatch &) {}
115
116 if (found)
117 {
118 iv = ivWithLength.begin();
119 ThrowIfInvalidIV(iv);
120 size = ThrowIfInvalidIVLength(static_cast<int>(ivWithLength.size()));
121 }
122 else if (params.GetValue(Name::IV(), iv))
123 {
124 ThrowIfInvalidIV(iv);
125 size = static_cast<size_t>(IVSize());
126 }
127 else
128 {
129 ThrowIfResynchronizable();
130 size = 0;
131 }
132
133 return iv;
134 }
135
136 void SimpleKeyingInterface::GetNextIV(RandomNumberGenerator &rng, byte *iv)
137 {
138 rng.GenerateBlock(iv, IVSize());
139 }
140
141 size_t BlockTransformation::AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags) const
142 {
143 CRYPTOPP_ASSERT(inBlocks);
144 CRYPTOPP_ASSERT(outBlocks);
145 CRYPTOPP_ASSERT(length);
146
147 const unsigned int blockSize = BlockSize();
148 size_t inIncrement = (flags & (BT_InBlockIsCounter|BT_DontIncrementInOutPointers)) ? 0 : blockSize;
149 size_t xorIncrement = xorBlocks ? blockSize : 0;
150 size_t outIncrement = (flags & BT_DontIncrementInOutPointers) ? 0 : blockSize;
151
152 if (flags & BT_ReverseDirection)
153 {
154 inBlocks = PtrAdd(inBlocks, length - blockSize);
155 xorBlocks = PtrAdd(xorBlocks, length - blockSize);
156 outBlocks = PtrAdd(outBlocks, length - blockSize);
157 inIncrement = 0-inIncrement;
158 xorIncrement = 0-xorIncrement;
159 outIncrement = 0-outIncrement;
160 }
161
162 // Coverity finding.
163 const bool xorFlag = xorBlocks && (flags & BT_XorInput);
164 while (length >= blockSize)
165 {
166 if (xorFlag)
167 {
168 // xorBlocks non-NULL and with BT_XorInput.
169 xorbuf(outBlocks, xorBlocks, inBlocks, blockSize);
170 ProcessBlock(outBlocks);
171 }
172 else
173 {
174 // xorBlocks may be non-NULL and without BT_XorInput.
175 ProcessAndXorBlock(inBlocks, xorBlocks, outBlocks);
176 }
177
178 if (flags & BT_InBlockIsCounter)
179 const_cast<byte *>(inBlocks)[blockSize-1]++;
180
181 inBlocks = PtrAdd(inBlocks, inIncrement);
182 outBlocks = PtrAdd(outBlocks, outIncrement);
183 xorBlocks = PtrAdd(xorBlocks, xorIncrement);
184 length -= blockSize;
185 }
186
187 return length;
188 }
189
190 unsigned int BlockTransformation::OptimalDataAlignment() const
191 {
192 return GetAlignmentOf<word32>();
193 }
194
195 unsigned int StreamTransformation::OptimalDataAlignment() const
196 {
197 return GetAlignmentOf<word32>();
198 }
199
200 unsigned int HashTransformation::OptimalDataAlignment() const
201 {
202 return GetAlignmentOf<word32>();
203 }
204
205 #if 0
206 void StreamTransformation::ProcessLastBlock(byte *outString, const byte *inString, size_t length)
207 {
208 CRYPTOPP_ASSERT(MinLastBlockSize() == 0); // this function should be overridden otherwise
209
210 if (length == MandatoryBlockSize())
211 ProcessData(outString, inString, length);
212 else if (length != 0)
213 throw NotImplemented(AlgorithmName() + ": this object doesn't support a special last block");
214 }
215 #endif
216
217 size_t StreamTransformation::ProcessLastBlock(byte *outString, size_t outLength, const byte *inString, size_t inLength)
218 {
219 // this function should be overridden otherwise
220 CRYPTOPP_ASSERT(MinLastBlockSize() == 0);
221
222 if (inLength == MandatoryBlockSize())
223 {
224 outLength = inLength; // squash unused warning
225 ProcessData(outString, inString, inLength);
226 }
227 else if (inLength != 0)
228 throw NotImplemented(AlgorithmName() + ": this object doesn't support a special last block");
229
230 return outLength;
231 }
232
233 void AuthenticatedSymmetricCipher::SpecifyDataLengths(lword headerLength, lword messageLength, lword footerLength)
234 {
235 if (headerLength > MaxHeaderLength())
236 throw InvalidArgument(GetAlgorithm().AlgorithmName() + ": header length " + IntToString(headerLength) + " exceeds the maximum of " + IntToString(MaxHeaderLength()));
237
238 if (messageLength > MaxMessageLength())
239 throw InvalidArgument(GetAlgorithm().AlgorithmName() + ": message length " + IntToString(messageLength) + " exceeds the maximum of " + IntToString(MaxMessageLength()));
240
241 if (footerLength > MaxFooterLength())
242 throw InvalidArgument(GetAlgorithm().AlgorithmName() + ": footer length " + IntToString(footerLength) + " exceeds the maximum of " + IntToString(MaxFooterLength()));
243
244 UncheckedSpecifyDataLengths(headerLength, messageLength, footerLength);
245 }
246
247 void AuthenticatedSymmetricCipher::EncryptAndAuthenticate(byte *ciphertext, byte *mac, size_t macSize, const byte *iv, int ivLength, const byte *header, size_t headerLength, const byte *message, size_t messageLength)
248 {
249 Resynchronize(iv, ivLength);
250 SpecifyDataLengths(headerLength, messageLength);
251 Update(header, headerLength);
252 ProcessString(ciphertext, message, messageLength);
253 TruncatedFinal(mac, macSize);
254 }
255
256 bool AuthenticatedSymmetricCipher::DecryptAndVerify(byte *message, const byte *mac, size_t macLength, const byte *iv, int ivLength, const byte *header, size_t headerLength, const byte *ciphertext, size_t ciphertextLength)
257 {
258 Resynchronize(iv, ivLength);
259 SpecifyDataLengths(headerLength, ciphertextLength);
260 Update(header, headerLength);
261 ProcessString(message, ciphertext, ciphertextLength);
262 return TruncatedVerify(mac, macLength);
263 }
264
265 std::string AuthenticatedSymmetricCipher::AlgorithmName() const
266 {
267 // Squash C4505 on Visual Studio 2008 and friends
268 return "Unknown";
269 }
270
271 unsigned int RandomNumberGenerator::GenerateBit()
272 {
273 return GenerateByte() & 1;
274 }
275
276 byte RandomNumberGenerator::GenerateByte()
277 {
278 byte b;
279 GenerateBlock(&b, 1);
280 return b;
281 }
282
283 word32 RandomNumberGenerator::GenerateWord32(word32 min, word32 max)
284 {
285 const word32 range = max-min;
286 const unsigned int maxBits = BitPrecision(range);
287
288 word32 value;
289
290 do
291 {
292 GenerateBlock((byte *)&value, sizeof(value));
293 value = Crop(value, maxBits);
294 } while (value > range);
295
296 return value+min;
297 }
298
299 // Stack recursion below... GenerateIntoBufferedTransformation calls GenerateBlock,
300 // and GenerateBlock calls GenerateIntoBufferedTransformation. Ad infinitum. Also
301 // see http://github.com/weidai11/cryptopp/issues/38.
302 //
303 // According to Wei, RandomNumberGenerator is an interface, and it should not
304 // be instantiable. Its now spilt milk, and we are going to CRYPTOPP_ASSERT it in Debug
305 // builds to alert the programmer and throw in Release builds. Developers have
306 // a reference implementation in case its needed. If a programmer
307 // unintentionally lands here, then they should ensure use of a
308 // RandomNumberGenerator pointer or reference so polymorphism can provide the
309 // proper runtime dispatching.
310
311 void RandomNumberGenerator::GenerateBlock(byte *output, size_t size)
312 {
313 CRYPTOPP_UNUSED(output), CRYPTOPP_UNUSED(size);
314
315 ArraySink s(output, size);
316 GenerateIntoBufferedTransformation(s, DEFAULT_CHANNEL, size);
317 }
318
319 void RandomNumberGenerator::DiscardBytes(size_t n)
320 {
321 GenerateIntoBufferedTransformation(TheBitBucket(), DEFAULT_CHANNEL, n);
322 }
323
324 void RandomNumberGenerator::GenerateIntoBufferedTransformation(BufferedTransformation &target, const std::string &channel, lword length)
325 {
326 FixedSizeSecBlock<byte, 256> buffer;
327 while (length)
328 {
329 size_t len = UnsignedMin(buffer.size(), length);
330 GenerateBlock(buffer, len);
331 (void)target.ChannelPut(channel, buffer, len);
332 length -= len;
333 }
334 }
335
336 size_t KeyDerivationFunction::MinDerivedLength() const
337 {
338 return 0;
339 }
340
341 size_t KeyDerivationFunction::MaxDerivedLength() const
342 {
343 return static_cast<size_t>(-1);
344 }
345
346 void KeyDerivationFunction::ThrowIfInvalidDerivedLength(size_t length) const
347 {
348 if (!IsValidDerivedLength(length))
349 throw InvalidDerivedLength(GetAlgorithm().AlgorithmName(), length);
350 }
351
352 void KeyDerivationFunction::SetParameters(const NameValuePairs& params) {
353 CRYPTOPP_UNUSED(params);
354 }
355
356 /// \brief Random Number Generator that does not produce random numbers
357 /// \details ClassNullRNG can be used for functions that require a RandomNumberGenerator
358 /// but don't actually use it. The class throws NotImplemented when a generation function is called.
359 /// \sa NullRNG()
360 class ClassNullRNG : public RandomNumberGenerator
361 {
362 public:
363 /// \brief The name of the generator
364 /// \returns the string \a NullRNGs
365 std::string AlgorithmName() const {return "NullRNG";}
366
367 #if defined(CRYPTOPP_DOXYGEN_PROCESSING)
368 /// \brief An implementation that throws NotImplemented
369 byte GenerateByte () {}
370 /// \brief An implementation that throws NotImplemented
371 unsigned int GenerateBit () {}
372 /// \brief An implementation that throws NotImplemented
373 word32 GenerateWord32 (word32 min, word32 max) {}
374 #endif
375
376 /// \brief An implementation that throws NotImplemented
377 void GenerateBlock(byte *output, size_t size)
378 {
379 CRYPTOPP_UNUSED(output); CRYPTOPP_UNUSED(size);
380 throw NotImplemented("NullRNG: NullRNG should only be passed to functions that don't need to generate random bytes");
381 }
382
383 #if defined(CRYPTOPP_DOXYGEN_PROCESSING)
384 /// \brief An implementation that throws NotImplemented
385 void GenerateIntoBufferedTransformation (BufferedTransformation &target, const std::string &channel, lword length) {}
386 /// \brief An implementation that throws NotImplemented
387 void IncorporateEntropy (const byte *input, size_t length) {}
388 /// \brief An implementation that returns \p false
389 bool CanIncorporateEntropy () const {}
390 /// \brief An implementation that does nothing
391 void DiscardBytes (size_t n) {}
392 /// \brief An implementation that does nothing
393 void Shuffle (IT begin, IT end) {}
394
395 private:
396 Clonable* Clone () const { return NULLPTR; }
397 #endif
398 };
399
400 RandomNumberGenerator & NullRNG()
401 {
402 static ClassNullRNG s_nullRNG;
403 return s_nullRNG;
404 }
405
406 bool HashTransformation::TruncatedVerify(const byte *digest, size_t digestLength)
407 {
408 ThrowIfInvalidTruncatedSize(digestLength);
409 SecByteBlock calculated(digestLength);
410 TruncatedFinal(calculated, digestLength);
411 return VerifyBufsEqual(calculated, digest, digestLength);
412 }
413
414 void HashTransformation::ThrowIfInvalidTruncatedSize(size_t size) const
415 {
416 if (size > DigestSize())
417 throw InvalidArgument("HashTransformation: can't truncate a " + IntToString(DigestSize()) + " byte digest to " + IntToString(size) + " bytes");
418 }
419
420 unsigned int BufferedTransformation::GetMaxWaitObjectCount() const
421 {
422 const BufferedTransformation *t = AttachedTransformation();
423 return t ? t->GetMaxWaitObjectCount() : 0;
424 }
425
426 void BufferedTransformation::GetWaitObjects(WaitObjectContainer &container, CallStack const& callStack)
427 {
428 BufferedTransformation *t = AttachedTransformation();
429 if (t)
430 t->GetWaitObjects(container, callStack); // reduce clutter by not adding to stack here
431 }
432
433 void BufferedTransformation::Initialize(const NameValuePairs &parameters, int propagation)
434 {
435 CRYPTOPP_UNUSED(propagation);
436 CRYPTOPP_ASSERT(!AttachedTransformation());
437 IsolatedInitialize(parameters);
438 }
439
440 bool BufferedTransformation::Flush(bool hardFlush, int propagation, bool blocking)
441 {
442 CRYPTOPP_UNUSED(propagation);
443 CRYPTOPP_ASSERT(!AttachedTransformation());
444 return IsolatedFlush(hardFlush, blocking);
445 }
446
447 bool BufferedTransformation::MessageSeriesEnd(int propagation, bool blocking)
448 {
449 CRYPTOPP_UNUSED(propagation);
450 CRYPTOPP_ASSERT(!AttachedTransformation());
451 return IsolatedMessageSeriesEnd(blocking);
452 }
453
454 byte * BufferedTransformation::ChannelCreatePutSpace(const std::string &channel, size_t &size)
455 {
456 byte* space = NULLPTR;
457 if (channel.empty())
458 space = CreatePutSpace(size);
459 else
460 throw NoChannelSupport(AlgorithmName());
461 return space;
462 }
463
464 size_t BufferedTransformation::ChannelPut2(const std::string &channel, const byte *inString, size_t length, int messageEnd, bool blocking)
465 {
466 size_t size = 0;
467 if (channel.empty())
468 size = Put2(inString, length, messageEnd, blocking);
469 else
470 throw NoChannelSupport(AlgorithmName());
471 return size;
472 }
473
474 size_t BufferedTransformation::ChannelPutModifiable2(const std::string &channel, byte *inString, size_t length, int messageEnd, bool blocking)
475 {
476 size_t size = 0;
477 if (channel.empty())
478 size = PutModifiable2(inString, length, messageEnd, blocking);
479 else
480 size = ChannelPut2(channel, inString, length, messageEnd, blocking);
481 return size;
482 }
483
484 bool BufferedTransformation::ChannelFlush(const std::string &channel, bool hardFlush, int propagation, bool blocking)
485 {
486 bool result = 0;
487 if (channel.empty())
488 result = Flush(hardFlush, propagation, blocking);
489 else
490 throw NoChannelSupport(AlgorithmName());
491 return result;
492 }
493
494 bool BufferedTransformation::ChannelMessageSeriesEnd(const std::string &channel, int propagation, bool blocking)
495 {
496 bool result = false;
497 if (channel.empty())
498 result = MessageSeriesEnd(propagation, blocking);
499 else
500 throw NoChannelSupport(AlgorithmName());
501 return result;
502 }
503
504 lword BufferedTransformation::MaxRetrievable() const
505 {
506 lword size = 0;
507 if (AttachedTransformation())
508 size = AttachedTransformation()->MaxRetrievable();
509 else
510 size = CopyTo(TheBitBucket());
511 return size;
512 }
513
514 bool BufferedTransformation::AnyRetrievable() const
515 {
516 bool result = false;
517 if (AttachedTransformation())
518 result = AttachedTransformation()->AnyRetrievable();
519 else
520 {
521 byte b;
522 result = Peek(b) != 0;
523 }
524 return result;
525 }
526
527 size_t BufferedTransformation::Get(byte &outByte)
528 {
529 size_t size = 0;
530 if (AttachedTransformation())
531 size = AttachedTransformation()->Get(outByte);
532 else
533 size = Get(&outByte, 1);
534 return size;
535 }
536
537 size_t BufferedTransformation::Get(byte *outString, size_t getMax)
538 {
539 size_t size = 0;
540 if (AttachedTransformation())
541 size = AttachedTransformation()->Get(outString, getMax);
542 else
543 {
544 ArraySink arraySink(outString, getMax);
545 size = (size_t)TransferTo(arraySink, getMax);
546 }
547 return size;
548 }
549
550 size_t BufferedTransformation::Peek(byte &outByte) const
551 {
552 size_t size = 0;
553 if (AttachedTransformation())
554 size = AttachedTransformation()->Peek(outByte);
555 else
556 size = Peek(&outByte, 1);
557 return size;
558 }
559
560 size_t BufferedTransformation::Peek(byte *outString, size_t peekMax) const
561 {
562 size_t size = 0;
563 if (AttachedTransformation())
564 size = AttachedTransformation()->Peek(outString, peekMax);
565 else
566 {
567 ArraySink arraySink(outString, peekMax);
568 size = (size_t)CopyTo(arraySink, peekMax);
569 }
570 return size;
571 }
572
573 lword BufferedTransformation::Skip(lword skipMax)
574 {
575 lword size = 0;
576 if (AttachedTransformation())
577 size = AttachedTransformation()->Skip(skipMax);
578 else
579 size = TransferTo(TheBitBucket(), skipMax);
580 return size;
581 }
582
583 lword BufferedTransformation::TotalBytesRetrievable() const
584 {
585 lword size = 0;
586 if (AttachedTransformation())
587 size = AttachedTransformation()->TotalBytesRetrievable();
588 else
589 size = MaxRetrievable();
590 return size;
591 }
592
593 unsigned int BufferedTransformation::NumberOfMessages() const
594 {
595 unsigned int size = 0;
596 if (AttachedTransformation())
597 size = AttachedTransformation()->NumberOfMessages();
598 else
599 size = CopyMessagesTo(TheBitBucket());
600 return size;
601 }
602
603 bool BufferedTransformation::AnyMessages() const
604 {
605 bool result = false;
606 if (AttachedTransformation())
607 result = AttachedTransformation()->AnyMessages();
608 else
609 result = NumberOfMessages() != 0;
610 return result;
611 }
612
613 bool BufferedTransformation::GetNextMessage()
614 {
615 bool result = false;
616 if (AttachedTransformation())
617 result = AttachedTransformation()->GetNextMessage();
618 else
619 {
620 CRYPTOPP_ASSERT(!AnyMessages());
621 }
622 return result;
623 }
624
625 unsigned int BufferedTransformation::SkipMessages(unsigned int count)
626 {
627 unsigned int size = 0;
628 if (AttachedTransformation())
629 size = AttachedTransformation()->SkipMessages(count);
630 else
631 size = TransferMessagesTo(TheBitBucket(), count);
632 return size;
633 }
634
635 size_t BufferedTransformation::TransferMessagesTo2(BufferedTransformation &target, unsigned int &messageCount, const std::string &channel, bool blocking)
636 {
637 if (AttachedTransformation())
638 return AttachedTransformation()->TransferMessagesTo2(target, messageCount, channel, blocking);
639 else
640 {
641 unsigned int maxMessages = messageCount;
642 for (messageCount=0; messageCount < maxMessages && AnyMessages(); messageCount++)
643 {
644 size_t blockedBytes;
645 lword transferredBytes;
646
647 while (AnyRetrievable())
648 {
649 transferredBytes = LWORD_MAX;
650 blockedBytes = TransferTo2(target, transferredBytes, channel, blocking);
651 if (blockedBytes > 0)
652 return blockedBytes;
653 }
654
655 if (target.ChannelMessageEnd(channel, GetAutoSignalPropagation(), blocking))
656 return 1;
657
658 bool result = GetNextMessage();
659 CRYPTOPP_UNUSED(result); CRYPTOPP_ASSERT(result);
660 }
661 return 0;
662 }
663 }
664
665 unsigned int BufferedTransformation::CopyMessagesTo(BufferedTransformation &target, unsigned int count, const std::string &channel) const
666 {
667 unsigned int size = 0;
668 if (AttachedTransformation())
669 size = AttachedTransformation()->CopyMessagesTo(target, count, channel);
670 return size;
671 }
672
673 void BufferedTransformation::SkipAll()
674 {
675 if (AttachedTransformation())
676 AttachedTransformation()->SkipAll();
677 else
678 {
679 while (SkipMessages()) {}
680 while (Skip()) {}
681 }
682 }
683
684 size_t BufferedTransformation::TransferAllTo2(BufferedTransformation &target, const std::string &channel, bool blocking)
685 {
686 if (AttachedTransformation())
687 return AttachedTransformation()->TransferAllTo2(target, channel, blocking);
688 else
689 {
690 CRYPTOPP_ASSERT(!NumberOfMessageSeries());
691
692 unsigned int messageCount;
693 do
694 {
695 messageCount = UINT_MAX;
696 size_t blockedBytes = TransferMessagesTo2(target, messageCount, channel, blocking);
697 if (blockedBytes)
698 return blockedBytes;
699 }
700 while (messageCount != 0);
701
702 lword byteCount;
703 do
704 {
705 byteCount = ULONG_MAX;
706 size_t blockedBytes = TransferTo2(target, byteCount, channel, blocking);
707 if (blockedBytes)
708 return blockedBytes;
709 }
710 while (byteCount != 0);
711
712 return 0;
713 }
714 }
715
716 void BufferedTransformation::CopyAllTo(BufferedTransformation &target, const std::string &channel) const
717 {
718 if (AttachedTransformation())
719 AttachedTransformation()->CopyAllTo(target, channel);
720 else
721 {
722 CRYPTOPP_ASSERT(!NumberOfMessageSeries());
723 while (CopyMessagesTo(target, UINT_MAX, channel)) {}
724 }
725 }
726
727 void BufferedTransformation::SetRetrievalChannel(const std::string &channel)
728 {
729 if (AttachedTransformation())
730 AttachedTransformation()->SetRetrievalChannel(channel);
731 }
732
733 size_t BufferedTransformation::ChannelPutWord16(const std::string &channel, word16 value, ByteOrder order, bool blocking)
734 {
735 PutWord(false, order, m_buf, value);
736 return ChannelPut(channel, m_buf, 2, blocking);
737 }
738
739 size_t BufferedTransformation::ChannelPutWord32(const std::string &channel, word32 value, ByteOrder order, bool blocking)
740 {
741 PutWord(false, order, m_buf, value);
742 return ChannelPut(channel, m_buf, 4, blocking);
743 }
744
745 size_t BufferedTransformation::PutWord16(word16 value, ByteOrder order, bool blocking)
746 {
747 return ChannelPutWord16(DEFAULT_CHANNEL, value, order, blocking);
748 }
749
750 size_t BufferedTransformation::PutWord32(word32 value, ByteOrder order, bool blocking)
751 {
752 return ChannelPutWord32(DEFAULT_CHANNEL, value, order, blocking);
753 }
754
755 // Issue 340
756 #if CRYPTOPP_GCC_DIAGNOSTIC_AVAILABLE
757 # pragma GCC diagnostic push
758 # pragma GCC diagnostic ignored "-Wconversion"
759 # pragma GCC diagnostic ignored "-Wsign-conversion"
760 #endif
761
762 size_t BufferedTransformation::PeekWord16(word16 &value, ByteOrder order) const
763 {
764 byte buf[2] = {0, 0};
765 size_t len = Peek(buf, 2);
766
767 if (order)
768 value = (buf[0] << 8) | buf[1];
769 else
770 value = (buf[1] << 8) | buf[0];
771
772 return len;
773 }
774
775 size_t BufferedTransformation::PeekWord32(word32 &value, ByteOrder order) const
776 {
777 byte buf[4] = {0, 0, 0, 0};
778 size_t len = Peek(buf, 4);
779
780 if (order)
781 value = (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf [3];
782 else
783 value = (buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | buf [0];
784
785 return len;
786 }
787
788 // Issue 340
789 #if CRYPTOPP_GCC_DIAGNOSTIC_AVAILABLE
790 # pragma GCC diagnostic pop
791 #endif
792
793 size_t BufferedTransformation::GetWord16(word16 &value, ByteOrder order)
794 {
795 return (size_t)Skip(PeekWord16(value, order));
796 }
797
798 size_t BufferedTransformation::GetWord32(word32 &value, ByteOrder order)
799 {
800 return (size_t)Skip(PeekWord32(value, order));
801 }
802
803 void BufferedTransformation::Attach(BufferedTransformation *newAttachment)
804 {
805 if (AttachedTransformation() && AttachedTransformation()->Attachable())
806 AttachedTransformation()->Attach(newAttachment);
807 else
808 Detach(newAttachment);
809 }
810
811 void GeneratableCryptoMaterial::GenerateRandomWithKeySize(RandomNumberGenerator &rng, unsigned int keySize)
812 {
813 GenerateRandom(rng, MakeParameters("KeySize", (int)keySize));
814 }
815
816 class PK_DefaultEncryptionFilter : public Unflushable<Filter>
817 {
818 public:
819 PK_DefaultEncryptionFilter(RandomNumberGenerator &rng, const PK_Encryptor &encryptor, BufferedTransformation *attachment, const NameValuePairs &parameters)
820 : m_rng(rng), m_encryptor(encryptor), m_parameters(parameters)
821 {
822 Detach(attachment);
823 }
824
825 size_t Put2(const byte *inString, size_t length, int messageEnd, bool blocking)
826 {
827 FILTER_BEGIN;
828 m_plaintextQueue.Put(inString, length);
829
830 if (messageEnd)
831 {
832 {
833 size_t plaintextLength;
834 if (!SafeConvert(m_plaintextQueue.CurrentSize(), plaintextLength))
835 throw InvalidArgument("PK_DefaultEncryptionFilter: plaintext too long");
836 size_t ciphertextLength = m_encryptor.CiphertextLength(plaintextLength);
837
838 SecByteBlock plaintext(plaintextLength);
839 m_plaintextQueue.Get(plaintext, plaintextLength);
840 m_ciphertext.resize(ciphertextLength);
841 m_encryptor.Encrypt(m_rng, plaintext, plaintextLength, m_ciphertext, m_parameters);
842 }
843
844 FILTER_OUTPUT(1, m_ciphertext, m_ciphertext.size(), messageEnd);
845 }
846 FILTER_END_NO_MESSAGE_END;
847 }
848
849 RandomNumberGenerator &m_rng;
850 const PK_Encryptor &m_encryptor;
851 const NameValuePairs &m_parameters;
852 ByteQueue m_plaintextQueue;
853 SecByteBlock m_ciphertext;
854 };
855
856 BufferedTransformation * PK_Encryptor::CreateEncryptionFilter(RandomNumberGenerator &rng, BufferedTransformation *attachment, const NameValuePairs &parameters) const
857 {
858 return new PK_DefaultEncryptionFilter(rng, *this, attachment, parameters);
859 }
860
861 class PK_DefaultDecryptionFilter : public Unflushable<Filter>
862 {
863 public:
864 PK_DefaultDecryptionFilter(RandomNumberGenerator &rng, const PK_Decryptor &decryptor, BufferedTransformation *attachment, const NameValuePairs &parameters)
865 : m_rng(rng), m_decryptor(decryptor), m_parameters(parameters)
866 {
867 Detach(attachment);
868 }
869
870 size_t Put2(const byte *inString, size_t length, int messageEnd, bool blocking)
871 {
872 FILTER_BEGIN;
873 m_ciphertextQueue.Put(inString, length);
874
875 if (messageEnd)
876 {
877 {
878 size_t ciphertextLength;
879 if (!SafeConvert(m_ciphertextQueue.CurrentSize(), ciphertextLength))
880 throw InvalidArgument("PK_DefaultDecryptionFilter: ciphertext too long");
881 size_t maxPlaintextLength = m_decryptor.MaxPlaintextLength(ciphertextLength);
882
883 SecByteBlock ciphertext(ciphertextLength);
884 m_ciphertextQueue.Get(ciphertext, ciphertextLength);
885 m_plaintext.resize(maxPlaintextLength);
886 m_result = m_decryptor.Decrypt(m_rng, ciphertext, ciphertextLength, m_plaintext, m_parameters);
887 if (!m_result.isValidCoding)
888 throw InvalidCiphertext(m_decryptor.AlgorithmName() + ": invalid ciphertext");
889 }
890
891 FILTER_OUTPUT(1, m_plaintext, m_result.messageLength, messageEnd);
892 }
893 FILTER_END_NO_MESSAGE_END;
894 }
895
896 RandomNumberGenerator &m_rng;
897 const PK_Decryptor &m_decryptor;
898 const NameValuePairs &m_parameters;
899 ByteQueue m_ciphertextQueue;
900 SecByteBlock m_plaintext;
901 DecodingResult m_result;
902 };
903
904 BufferedTransformation * PK_Decryptor::CreateDecryptionFilter(RandomNumberGenerator &rng, BufferedTransformation *attachment, const NameValuePairs &parameters) const
905 {
906 return new PK_DefaultDecryptionFilter(rng, *this, attachment, parameters);
907 }
908
909 size_t PK_Signer::Sign(RandomNumberGenerator &rng, PK_MessageAccumulator *messageAccumulator, byte *signature) const
910 {
911 member_ptr<PK_MessageAccumulator> m(messageAccumulator);
912 return SignAndRestart(rng, *m, signature, false);
913 }
914
915 size_t PK_Signer::SignMessage(RandomNumberGenerator &rng, const byte *message, size_t messageLen, byte *signature) const
916 {
917 member_ptr<PK_MessageAccumulator> m(NewSignatureAccumulator(rng));
918 m->Update(message, messageLen);
919 return SignAndRestart(rng, *m, signature, false);
920 }
921
922 size_t PK_Signer::SignMessageWithRecovery(RandomNumberGenerator &rng, const byte *recoverableMessage, size_t recoverableMessageLength,
923 const byte *nonrecoverableMessage, size_t nonrecoverableMessageLength, byte *signature) const
924 {
925 member_ptr<PK_MessageAccumulator> m(NewSignatureAccumulator(rng));
926 InputRecoverableMessage(*m, recoverableMessage, recoverableMessageLength);
927 m->Update(nonrecoverableMessage, nonrecoverableMessageLength);
928 return SignAndRestart(rng, *m, signature, false);
929 }
930
931 bool PK_Verifier::Verify(PK_MessageAccumulator *messageAccumulator) const
932 {
933 member_ptr<PK_MessageAccumulator> m(messageAccumulator);
934 return VerifyAndRestart(*m);
935 }
936
937 bool PK_Verifier::VerifyMessage(const byte *message, size_t messageLen, const byte *signature, size_t signatureLen) const
938 {
939 member_ptr<PK_MessageAccumulator> m(NewVerificationAccumulator());
940 InputSignature(*m, signature, signatureLen);
941 m->Update(message, messageLen);
942 return VerifyAndRestart(*m);
943 }
944
945 DecodingResult PK_Verifier::Recover(byte *recoveredMessage, PK_MessageAccumulator *messageAccumulator) const
946 {
947 member_ptr<PK_MessageAccumulator> m(messageAccumulator);
948 return RecoverAndRestart(recoveredMessage, *m);
949 }
950
951 DecodingResult PK_Verifier::RecoverMessage(byte *recoveredMessage,
952 const byte *nonrecoverableMessage, size_t nonrecoverableMessageLength,
953 const byte *signature, size_t signatureLength) const
954 {
955 member_ptr<PK_MessageAccumulator> m(NewVerificationAccumulator());
956 InputSignature(*m, signature, signatureLength);
957 m->Update(nonrecoverableMessage, nonrecoverableMessageLength);
958 return RecoverAndRestart(recoveredMessage, *m);
959 }
960
961 void SimpleKeyAgreementDomain::GenerateKeyPair(RandomNumberGenerator &rng, byte *privateKey, byte *publicKey) const
962 {
963 GeneratePrivateKey(rng, privateKey);
964 GeneratePublicKey(rng, privateKey, publicKey);
965 }
966
967 void AuthenticatedKeyAgreementDomain::GenerateStaticKeyPair(RandomNumberGenerator &rng, byte *privateKey, byte *publicKey) const
968 {
969 GenerateStaticPrivateKey(rng, privateKey);
970 GenerateStaticPublicKey(rng, privateKey, publicKey);
971 }
972
973 void AuthenticatedKeyAgreementDomain::GenerateEphemeralKeyPair(RandomNumberGenerator &rng, byte *privateKey, byte *publicKey) const
974 {
975 GenerateEphemeralPrivateKey(rng, privateKey);
976 GenerateEphemeralPublicKey(rng, privateKey, publicKey);
977 }
978
979 // Allow a distro or packager to override the build-time version
980 // http://github.com/weidai11/cryptopp/issues/371
981 #ifndef CRYPTOPP_BUILD_VERSION
982 # define CRYPTOPP_BUILD_VERSION CRYPTOPP_VERSION
983 #endif
984 int LibraryVersion(CRYPTOPP_NOINLINE_DOTDOTDOT)
985 {
986 return CRYPTOPP_BUILD_VERSION;
987 }
988
989 class NullNameValuePairs : public NameValuePairs
990 {
991 public:
992 NullNameValuePairs() {} // Clang complains a default ctor must be avilable
993 bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const
994 {CRYPTOPP_UNUSED(name); CRYPTOPP_UNUSED(valueType); CRYPTOPP_UNUSED(pValue); return false;}
995 };
996
997 #if HAVE_GCC_INIT_PRIORITY
998 const std::string DEFAULT_CHANNEL __attribute__ ((init_priority (CRYPTOPP_INIT_PRIORITY + 25))) = "";
999 const std::string AAD_CHANNEL __attribute__ ((init_priority (CRYPTOPP_INIT_PRIORITY + 26))) = "AAD";
1000 const NullNameValuePairs s_nullNameValuePairs __attribute__ ((init_priority (CRYPTOPP_INIT_PRIORITY + 27)));
1001 const NameValuePairs& g_nullNameValuePairs = s_nullNameValuePairs;
1002 #elif HAVE_MSC_INIT_PRIORITY
1003 #pragma warning(disable: 4073)
1004 #pragma init_seg(lib)
1005 const std::string DEFAULT_CHANNEL = "";
1006 const std::string AAD_CHANNEL = "AAD";
1007 const NullNameValuePairs s_nullNameValuePairs;
1008 const NameValuePairs& g_nullNameValuePairs = s_nullNameValuePairs;
1009 #pragma warning(default: 4073)
1010 #elif HAVE_XLC_INIT_PRIORITY
1011 #pragma priority(260)
1012 const std::string DEFAULT_CHANNEL = "";
1013 const std::string AAD_CHANNEL = "AAD";
1014 const NullNameValuePairs s_nullNameValuePairs;
1015 const NameValuePairs& g_nullNameValuePairs = s_nullNameValuePairs;
1016 #else
1017 const std::string DEFAULT_CHANNEL = "";
1018 const std::string AAD_CHANNEL = "AAD";
1019 const simple_ptr<NullNameValuePairs> s_pNullNameValuePairs(new NullNameValuePairs);
1020 const NameValuePairs &g_nullNameValuePairs = *s_pNullNameValuePairs.m_p;
1021 #endif
1022
1023 NAMESPACE_END // CryptoPP
1024
1025 #endif // CRYPTOPP_IMPORTS
ConstByteArrayParameter
Used to pass byte array input as part of a NameValuePairs object.
Definition: algparam.h:20
NullNameValuePairs::GetVoidValue
bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const
Get a named value.
Definition: cryptlib.cpp:993
argnames.h
Standard names for retrieving values by name when working with NameValuePairs.
InvalidArgument
An invalid argument was detected.
Definition: cryptlib.h:202
BufferedTransformation::ChannelPutModifiable2
virtual size_t ChannelPutModifiable2(const std::string &channel, byte *inString, size_t length, int messageEnd, bool blocking)
Input multiple bytes that may be modified by callee on a channel.
Definition: cryptlib.cpp:474
KeyDerivationFunction::SetParameters
virtual void SetParameters(const NameValuePairs &params)
Set or change parameters.
Definition: cryptlib.cpp:352
SimpleKeyAgreementDomain::GenerateKeyPair
virtual void GenerateKeyPair(RandomNumberGenerator &rng, byte *privateKey, byte *publicKey) const
Generate a private/public key pair.
Definition: cryptlib.cpp:961
BufferedTransformation::ChannelPutWord32
size_t ChannelPutWord32(const std::string &channel, word32 value, ByteOrder order=BIG_ENDIAN_ORDER, bool blocking=true)
Input a 32-bit word for processing on a channel.
Definition: cryptlib.cpp:739
KeyDerivationFunction::IsValidDerivedLength
virtual bool IsValidDerivedLength(size_t keylength) const
Returns whether keylength is a valid key length.
Definition: cryptlib.h:1495
BufferedTransformation::TransferAllTo2
size_t TransferAllTo2(BufferedTransformation &target, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true)
Transfer all bytes from this object to another BufferedTransformation.
Definition: cryptlib.cpp:684
algparam.h
Classes for working with NameValuePairs.
ClassNullRNG::GenerateWord32
word32 GenerateWord32(word32 min, word32 max)
An implementation that throws NotImplemented.
Definition: cryptlib.cpp:373
SimpleKeyingInterface::MinIVLength
virtual unsigned int MinIVLength() const
Provides the minimum size of an IV.
Definition: cryptlib.h:743
SafeConvert
bool SafeConvert(T1 from, T2 &to)
Tests whether a conversion from -> to is safe to perform.
Definition: misc.h:590
StreamTransformation::ProcessData
virtual void ProcessData(byte *outString, const byte *inString, size_t length)=0
Encrypt or decrypt an array of bytes.
BufferedTransformation::TransferMessagesTo2
size_t TransferMessagesTo2(BufferedTransformation &target, unsigned int &messageCount, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true)
Transfer messages from this object to another BufferedTransformation.
Definition: cryptlib.cpp:635
misc.h
Utility functions for the Crypto++ library.
SimpleKeyingInterface::SetKey
virtual void SetKey(const byte *key, size_t length, const NameValuePairs &params=g_nullNameValuePairs)
Sets or reset the key of this object.
Definition: cryptlib.cpp:58
Name::Rounds
const char * Rounds()
int
Definition: argnames.h:24
BufferedTransformation::Peek
virtual size_t Peek(byte &outByte) const
Peek a 8-bit byte.
Definition: cryptlib.cpp:550
ByteOrder
ByteOrder
Provides the byte ordering.
Definition: cryptlib.h:143
BlockTransformation::ProcessAndXorBlock
virtual void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const =0
Encrypt or decrypt a block.
BufferedTransformation::Put2
virtual size_t Put2(const byte *inString, size_t length, int messageEnd, bool blocking)=0
Input multiple bytes for processing.
RandomNumberGenerator::GenerateBlock
virtual void GenerateBlock(byte *output, size_t size)
Generate random array of bytes.
Definition: cryptlib.cpp:311
ConstByteArrayParameter::size
size_t size() const
Length of the memory block.
Definition: algparam.h:84
BufferedTransformation::ChannelPut
size_t ChannelPut(const std::string &channel, byte inByte, bool blocking=true)
Input a byte for processing on a channel.
Definition: cryptlib.h:2106
PK_Verifier::Verify
virtual bool Verify(PK_MessageAccumulator *messageAccumulator) const
Check whether messageAccumulator contains a valid signature and message.
Definition: cryptlib.cpp:931
PK_Signer::SignMessage
virtual size_t SignMessage(RandomNumberGenerator &rng, const byte *message, size_t messageLen, byte *signature) const
Sign a message.
Definition: cryptlib.cpp:915
BufferedTransformation::GetMaxWaitObjectCount
unsigned int GetMaxWaitObjectCount() const
Retrieves the maximum number of waitable objects.
Definition: cryptlib.cpp:420
InvalidKeyLength
Exception thrown when an invalid key length is encountered.
Definition: simple.h:52
HashTransformation::TruncatedFinal
virtual void TruncatedFinal(byte *digest, size_t digestSize)=0
Computes the hash of the current message.
BufferedTransformation::IsolatedInitialize
virtual void IsolatedInitialize(const NameValuePairs &parameters)
Initialize or reinitialize this object, without signal propagation.
Definition: cryptlib.h:1755
StreamTransformation::ProcessLastBlock
virtual size_t ProcessLastBlock(byte *outString, size_t outLength, const byte *inString, size_t inLength)
Encrypt or decrypt the last block of data.
Definition: cryptlib.cpp:217
SecBlock::resize
void resize(size_type newSize)
Change size and preserve contents.
Definition: secblock.h:1031
PutWord
void PutWord(bool assumeAligned, ByteOrder order, byte *block, T value, const byte *xorBlock=NULL)
Access a block of memory.
Definition: misc.h:2396
AuthenticatedSymmetricCipher::DecryptAndVerify
virtual bool DecryptAndVerify(byte *message, const byte *mac, size_t macSize, const byte *iv, int ivLength, const byte *header, size_t headerLength, const byte *ciphertext, size_t ciphertextLength)
Decrypts and verifies a MAC in one call.
Definition: cryptlib.cpp:256
AuthenticatedKeyAgreementDomain::GenerateStaticKeyPair
virtual void GenerateStaticKeyPair(RandomNumberGenerator &rng, byte *privateKey, byte *publicKey) const
Generate a static private/public key pair.
Definition: cryptlib.cpp:967
PK_Encryptor
Interface for public-key encryptors.
Definition: cryptlib.h:2582
ClassNullRNG::GenerateByte
byte GenerateByte()
An implementation that throws NotImplemented.
Definition: cryptlib.cpp:369
RandomNumberGenerator::GenerateWord32
virtual word32 GenerateWord32(word32 min=0, word32 max=0xffffffffUL)
Generate a random 32 bit word in the range min to max, inclusive.
Definition: cryptlib.cpp:283
cryptlib.h
Abstract base classes that provide a uniform interface to this library.
PK_Encryptor::Encrypt
virtual void Encrypt(RandomNumberGenerator &rng, const byte *plaintext, size_t plaintextLength, byte *ciphertext, const NameValuePairs &parameters=g_nullNameValuePairs) const =0
Encrypt a byte string.
PK_CryptoSystem::MaxPlaintextLength
virtual size_t MaxPlaintextLength(size_t ciphertextLength) const =0
Provides the maximum length of plaintext for a given ciphertext length.
NameValuePairs::ValueTypeMismatch
Thrown when an unexpected type is encountered.
Definition: cryptlib.h:300
PK_DefaultEncryptionFilter
Definition: cryptlib.cpp:816
TheBitBucket
BufferedTransformation & TheBitBucket()
An input discarding BufferedTransformation.
Definition: cryptlib.cpp:40
ClassNullRNG::GenerateBlock
void GenerateBlock(byte *output, size_t size)
An implementation that throws NotImplemented.
Definition: cryptlib.cpp:377
RandomNumberGenerator::DiscardBytes
virtual void DiscardBytes(size_t n)
Generate and discard n bytes.
Definition: cryptlib.cpp:319
POWER_UP_SELF_TEST_FAILED
The self tests were executed via DoPowerUpSelfTest() or DoDllPowerUpSelfTest(), but the result was fa...
Definition: fips140.h:43
smartptr.h
Classes for automatic resource management.
ClassNullRNG::GenerateIntoBufferedTransformation
void GenerateIntoBufferedTransformation(BufferedTransformation &target, const std::string &channel, lword length)
An implementation that throws NotImplemented.
Definition: cryptlib.cpp:385
BufferedTransformation::TransferTo2
virtual size_t TransferTo2(BufferedTransformation &target, lword &byteCount, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true)=0
Transfer bytes from this object to another BufferedTransformation.
config.h
Library configuration file.
BlockTransformation::BT_DontIncrementInOutPointers
should not modify block pointers
Definition: cryptlib.h:891
RandomNumberGenerator
Interface for random number generators.
Definition: cryptlib.h:1383
PK_Signer::InputRecoverableMessage
virtual void InputRecoverableMessage(PK_MessageAccumulator &messageAccumulator, const byte *recoverableMessage, size_t recoverableMessageLength) const =0
Input a recoverable message to an accumulator.
stdcpp.h
Common C++ header files.
StreamTransformation::ProcessString
void ProcessString(byte *inoutString, size_t length)
Encrypt or decrypt a string of bytes.
Definition: cryptlib.h:1032
BufferedTransformation::MessageSeriesEnd
virtual bool MessageSeriesEnd(int propagation=-1, bool blocking=true)
Marks the end of a series of messages, with signal propagation.
Definition: cryptlib.cpp:447
DecodingResult::messageLength
size_t messageLength
Recovered message length if isValidCoding is true, undefined otherwise.
Definition: cryptlib.h:278
SimpleKeyingInterface::SetKeyWithRounds
void SetKeyWithRounds(const byte *key, size_t length, int rounds)
Sets or reset the key of this object.
Definition: cryptlib.cpp:64
BufferedTransformation::GetAutoSignalPropagation
virtual int GetAutoSignalPropagation() const
Retrieve automatic signal propagation value.
Definition: cryptlib.h:1818
AuthenticatedKeyAgreementDomain::GenerateEphemeralKeyPair
virtual void GenerateEphemeralKeyPair(RandomNumberGenerator &rng, byte *privateKey, byte *publicKey) const
Generate private/public key pair.
Definition: cryptlib.cpp:973
PK_Verifier::VerifyAndRestart
virtual bool VerifyAndRestart(PK_MessageAccumulator &messageAccumulator) const =0
Check whether messageAccumulator contains a valid signature and message, and restart messageAccumulat...
BufferedTransformation::ChannelFlush
virtual bool ChannelFlush(const std::string &channel, bool hardFlush, int propagation=-1, bool blocking=true)
Flush buffered input and/or output on a channel.
Definition: cryptlib.cpp:484
HashTransformation::TruncatedVerify
virtual bool TruncatedVerify(const byte *digest, size_t digestLength)
Verifies the hash of the current message.
Definition: cryptlib.cpp:406
SecByteBlock
SecBlock<byte> typedef.
Definition: secblock.h:1058
BufferedTransformation::SkipMessages
virtual unsigned int SkipMessages(unsigned int count=UINT_MAX)
Skip a number of meessages.
Definition: cryptlib.cpp:625
BufferedTransformation::SetRetrievalChannel
virtual void SetRetrievalChannel(const std::string &channel)
Sets the default retrieval channel.
Definition: cryptlib.cpp:727
BufferedTransformation
Interface for buffered transformations.
Definition: cryptlib.h:1598
BlockTransformation::OptimalDataAlignment
virtual unsigned int OptimalDataAlignment() const
Provides input and output data alignment for optimal performance.
Definition: cryptlib.cpp:190
BufferedTransformation::CopyAllTo
void CopyAllTo(BufferedTransformation &target, const std::string &channel=DEFAULT_CHANNEL) const
Copy messages from this object to another BufferedTransformation.
Definition: cryptlib.cpp:716
Clonable
Interface for cloning objects.
Definition: cryptlib.h:556
PK_Signer::SignMessageWithRecovery
virtual size_t SignMessageWithRecovery(RandomNumberGenerator &rng, const byte *recoverableMessage, size_t recoverableMessageLength, const byte *nonrecoverableMessage, size_t nonrecoverableMessageLength, byte *signature) const
Sign a recoverable message.
Definition: cryptlib.cpp:922
ClassNullRNG::AlgorithmName
std::string AlgorithmName() const
The name of the generator.
Definition: cryptlib.cpp:365
PK_DefaultDecryptionFilter::Put2
size_t Put2(const byte *inString, size_t length, int messageEnd, bool blocking)
Input multiple bytes for processing.
Definition: cryptlib.cpp:870
AuthenticatedSymmetricCipher::MaxHeaderLength
virtual lword MaxHeaderLength() const =0
Provides the maximum length of AAD that can be input.
member_ptr< PK_MessageAccumulator >
secblock.h
Classes and functions for secure memory allocations.
BlockTransformation::BlockSize
virtual unsigned int BlockSize() const =0
Provides the block size of the cipher.
FIPS_140_2_ComplianceEnabled
bool FIPS_140_2_ComplianceEnabled()
Determines whether the library provides FIPS validated cryptography.
Definition: fips140.cpp:24
ArraySink
Copy input to a memory buffer.
Definition: filters.h:1136
BufferedTransformation::NoChannelSupport
Exception thrown when a filter does not support named channels.
Definition: cryptlib.h:2094
DecodingResult
Returns a decoding results.
Definition: cryptlib.h:255
Algorithm::Algorithm
Algorithm(bool checkSelfTestStatus=true)
Interface for all crypto algorithms.
Definition: cryptlib.cpp:46
SimpleKeyingInterface::IVRequirement
virtual IV_Requirement IVRequirement() const =0
Minimal requirement for secure IVs.
KeyDerivationFunction::AlgorithmName
virtual std::string AlgorithmName() const =0
Provides the name of this algorithm.
BufferedTransformation::TransferTo
lword TransferTo(BufferedTransformation &target, lword transferMax=LWORD_MAX, const std::string &channel=DEFAULT_CHANNEL)
move transferMax bytes of the buffered output to target as input
Definition: cryptlib.h:1901
BufferedTransformation::PeekWord32
size_t PeekWord32(word32 &value, ByteOrder order=BIG_ENDIAN_ORDER) const
Peek a 32-bit word.
Definition: cryptlib.cpp:775
BufferedTransformation::Attach
virtual void Attach(BufferedTransformation *newAttachment)
Add newAttachment to the end of attachment chain.
Definition: cryptlib.cpp:803
PK_Decryptor
Interface for public-key decryptors.
Definition: cryptlib.h:2617
PK_DefaultDecryptionFilter
Definition: cryptlib.cpp:861
ClassNullRNG::Shuffle
void Shuffle(IT begin, IT end)
An implementation that does nothing.
Definition: cryptlib.cpp:393
AuthenticatedKeyAgreementDomain::GenerateStaticPrivateKey
virtual void GenerateStaticPrivateKey(RandomNumberGenerator &rng, byte *privateKey) const =0
Generate static private key in this domain.
NotImplemented
A method was called which was not implemented.
Definition: cryptlib.h:223
PK_Verifier::RecoverAndRestart
virtual DecodingResult RecoverAndRestart(byte *recoveredMessage, PK_MessageAccumulator &messageAccumulator) const =0
Recover a message from its signature.
ConstByteArrayParameter::begin
const byte * begin() const
Pointer to the first byte in the memory block.
Definition: algparam.h:80
BufferedTransformation::Put
size_t Put(byte inByte, bool blocking=true)
Input a byte for processing.
Definition: cryptlib.h:1620
Filter::Detach
void Detach(BufferedTransformation *newAttachment=NULL)
Replace an attached transformation.
Definition: filters.cpp:50
DEFAULT_CHANNEL
const std::string DEFAULT_CHANNEL
Default channel for BufferedTransformation.
Definition: cryptlib.h:482
MakeParameters
AlgorithmParameters MakeParameters(const char *name, const T &value, bool throwIfNotUsed=true)
Create an object that implements NameValuePairs.
Definition: algparam.h:502
BufferedTransformation::NumberOfMessages
virtual unsigned int NumberOfMessages() const
Provides the number of meesages processed by this object.
Definition: cryptlib.cpp:593
simple_ptr
Manages resources for a single object.
Definition: smartptr.h:18
BufferedTransformation::TotalBytesRetrievable
virtual lword TotalBytesRetrievable() const
Provides the number of bytes ready for retrieval.
Definition: cryptlib.cpp:583
SimpleKeyingInterface::MaxIVLength
virtual unsigned int MaxIVLength() const
Provides the maximum size of an IV.
Definition: cryptlib.h:748
SelfTestFailure
Exception thrown when a crypto algorithm is used after a self test fails.
Definition: fips140.h:22
SimpleKeyingInterface::IsValidKeyLength
virtual bool IsValidKeyLength(size_t keylength) const
Returns whether keylength is a valid key length.
Definition: cryptlib.h:644
BufferedTransformation::ChannelMessageSeriesEnd
virtual bool ChannelMessageSeriesEnd(const std::string &channel, int propagation=-1, bool blocking=true)
Marks the end of a series of messages on a channel.
Definition: cryptlib.cpp:494
PK_Verifier::RecoverMessage
virtual DecodingResult RecoverMessage(byte *recoveredMessage, const byte *nonrecoverableMessage, size_t nonrecoverableMessageLength, const byte *signature, size_t signatureLength) const
Recover a message from its signature.
Definition: cryptlib.cpp:951
SimpleKeyingInterface::Resynchronize
virtual void Resynchronize(const byte *iv, int ivLength=-1)
Resynchronize with an IV.
Definition: cryptlib.h:755
StreamTransformation::MandatoryBlockSize
virtual unsigned int MandatoryBlockSize() const
Provides the mandatory block size of the cipher.
Definition: cryptlib.h:937
CRYPTOPP_COMPILE_ASSERT
#define CRYPTOPP_COMPILE_ASSERT(expr)
Compile time assertion.
Definition: misc.h:116
BufferedTransformation::Flush
virtual bool Flush(bool hardFlush, int propagation=-1, bool blocking=true)
Flush buffered input and/or output, with signal propagation.
Definition: cryptlib.cpp:440
BufferedTransformation::ChannelCreatePutSpace
virtual byte * ChannelCreatePutSpace(const std::string &channel, size_t &size)
Request space which can be written into by the caller.
Definition: cryptlib.cpp:454
Crop
T Crop(T value, size_t bits)
Truncates the value to the specified number of bits.
Definition: misc.h:806
BlockTransformation::AdvancedProcessBlocks
virtual size_t AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags) const
Encrypt and xor multiple blocks using additional flags.
Definition: cryptlib.cpp:141
pch.h
Precompiled header file.
BlockTransformation::ProcessBlock
void ProcessBlock(const byte *inBlock, byte *outBlock) const
Encrypt or decrypt a block.
Definition: cryptlib.h:851
BufferedTransformation::NumberOfMessageSeries
virtual unsigned int NumberOfMessageSeries() const
Provides the number of messages in a series.
Definition: cryptlib.h:2023
BufferedTransformation::AttachedTransformation
virtual BufferedTransformation * AttachedTransformation()
Returns the object immediately attached to this object.
Definition: cryptlib.h:2243
PK_Verifier::VerifyMessage
virtual bool VerifyMessage(const byte *message, size_t messageLen, const byte *signature, size_t signatureLen) const
Check whether input signature is a valid signature for input message.
Definition: cryptlib.cpp:937
UnsignedMin
const T1 UnsignedMin(const T1 &a, const T2 &b)
Safe comparison of values that could be neagtive and incorrectly promoted.
Definition: misc.h:574
BufferedTransformation::ChannelPut2
virtual size_t ChannelPut2(const std::string &channel, const byte *inString, size_t length, int messageEnd, bool blocking)
Input multiple bytes for processing on a channel.
Definition: cryptlib.cpp:464
SimpleKeyingInterface::IVSize
virtual unsigned int IVSize() const
Returns length of the IV accepted by this object.
Definition: cryptlib.h:733
g_nullNameValuePairs
const NameValuePairs & g_nullNameValuePairs
An empty set of name-value pairs.
Definition: cryptlib.h:500
ClassNullRNG::GenerateBit
unsigned int GenerateBit()
An implementation that throws NotImplemented.
Definition: cryptlib.cpp:371
PK_Decryptor::CreateDecryptionFilter
virtual BufferedTransformation * CreateDecryptionFilter(RandomNumberGenerator &rng, BufferedTransformation *attachment=NULL, const NameValuePairs &parameters=g_nullNameValuePairs) const
Create a new decryption filter.
Definition: cryptlib.cpp:904
StreamTransformation::OptimalDataAlignment
virtual unsigned int OptimalDataAlignment() const
Provides input and output data alignment for optimal performance.
Definition: cryptlib.cpp:195
BufferedTransformation::Skip
virtual lword Skip(lword skipMax=LWORD_MAX)
Discard skipMax bytes from the output buffer.
Definition: cryptlib.cpp:573
AuthenticatedKeyAgreementDomain::GenerateStaticPublicKey
virtual void GenerateStaticPublicKey(RandomNumberGenerator &rng, const byte *privateKey, byte *publicKey) const =0
Generate a static public key from a private key in this domain.
AuthenticatedSymmetricCipher::AlgorithmName
virtual std::string AlgorithmName() const
Provides the name of this algorithm.
Definition: cryptlib.cpp:265
FixedSizeSecBlock< byte, 256 >
BufferedTransformation::Detach
virtual void Detach(BufferedTransformation *newAttachment=NULL)
Delete the current attachment chain and attach a new one.
Definition: cryptlib.h:2258
KeyDerivationFunction::MinDerivedLength
virtual size_t MinDerivedLength() const
Determine minimum number of bytes.
Definition: cryptlib.cpp:336
Algorithm::AlgorithmName
virtual std::string AlgorithmName() const
Provides the name of this algorithm.
Definition: cryptlib.h:591
NullRNG
RandomNumberGenerator & NullRNG()
Random Number Generator that does not produce random numbers.
Definition: cryptlib.cpp:400
CRYPTOPP_ASSERT
#define CRYPTOPP_ASSERT(exp)
Debugging and diagnostic assertion.
Definition: trap.h:69
RandomNumberGenerator::GenerateByte
virtual byte GenerateByte()
Generate new random byte and return it.
Definition: cryptlib.cpp:276
BufferedTransformation::AnyMessages
virtual bool AnyMessages() const
Determines if any messages are available for retrieval.
Definition: cryptlib.cpp:603
ByteQueue
Data structure used to store byte strings.
Definition: queue.h:18
SimpleKeyAgreementDomain::GeneratePublicKey
virtual void GeneratePublicKey(RandomNumberGenerator &rng, const byte *privateKey, byte *publicKey) const =0
Generate a public key from a private key in this domain.
BufferedTransformation::IsolatedMessageSeriesEnd
virtual bool IsolatedMessageSeriesEnd(bool blocking)
Marks the end of a series of messages, without signal propagation.
Definition: cryptlib.h:1769
AuthenticatedKeyAgreementDomain::GenerateEphemeralPublicKey
virtual void GenerateEphemeralPublicKey(RandomNumberGenerator &rng, const byte *privateKey, byte *publicKey) const =0
Generate ephemeral public key.
BufferedTransformation::AnyRetrievable
virtual bool AnyRetrievable() const
Determines whether bytes are ready for retrieval.
Definition: cryptlib.cpp:514
PK_Verifier::NewVerificationAccumulator
virtual PK_MessageAccumulator * NewVerificationAccumulator() const =0
Create a new HashTransformation to accumulate the message to be verified.
BufferedTransformation::GetWord16
size_t GetWord16(word16 &value, ByteOrder order=BIG_ENDIAN_ORDER)
Retrieve a 16-bit word.
Definition: cryptlib.cpp:793
BufferedTransformation::IsolatedFlush
virtual bool IsolatedFlush(bool hardFlush, bool blocking)=0
Flushes data buffered by this object, without signal propagation.
GetPowerUpSelfTestStatus
PowerUpSelfTestStatus GetPowerUpSelfTestStatus()
Provides the current power-up self test status.
Definition: fips140.cpp:34
BufferedTransformation::GetWaitObjects
void GetWaitObjects(WaitObjectContainer &container, CallStack const &callStack)
Retrieves waitable objects.
Definition: cryptlib.cpp:426
ClassNullRNG
Random Number Generator that does not produce random numbers.
Definition: cryptlib.cpp:360
HashTransformation::OptimalDataAlignment
virtual unsigned int OptimalDataAlignment() const
Provides input and output data alignment for optimal performance.
Definition: cryptlib.cpp:200
filters.h
Implementation of BufferedTransformation&#39;s attachment interface.
Name::IV
const char * IV()
ConstByteArrayParameter, also accepts const byte * for backwards compatibility.
Definition: argnames.h:21
POWER_UP_SELF_TEST_NOT_DONE
The self tests have not been performed.
Definition: fips140.h:40
PK_MessageAccumulator
Interface for accumulating messages to be signed or verified.
Definition: cryptlib.h:2745
BufferedTransformation::CopyMessagesTo
unsigned int CopyMessagesTo(BufferedTransformation &target, unsigned int count=UINT_MAX, const std::string &channel=DEFAULT_CHANNEL) const
Copy messages from this object to another BufferedTransformation.
Definition: cryptlib.cpp:665
AuthenticatedSymmetricCipher::MaxMessageLength
virtual lword MaxMessageLength() const =0
Provides the maximum length of encrypted data.
SimpleKeyAgreementDomain::GeneratePrivateKey
virtual void GeneratePrivateKey(RandomNumberGenerator &rng, byte *privateKey) const =0
Generate private key in this domain.
InvalidCiphertext
A decryption filter encountered invalid ciphertext.
Definition: cryptlib.h:216
BufferedTransformation::PutWord32
size_t PutWord32(word32 value, ByteOrder order=BIG_ENDIAN_ORDER, bool blocking=true)
Input a 32-bit word for processing.
Definition: cryptlib.cpp:750
SimpleKeyingInterface::SetKeyWithIV
void SetKeyWithIV(const byte *key, size_t length, const byte *iv, size_t ivLength)
Sets or reset the key of this object.
Definition: cryptlib.cpp:69
NullNameValuePairs
Definition: cryptlib.cpp:989
PtrAdd
PTR PtrAdd(PTR pointer, OFF offset)
Create a pointer with an offset.
Definition: misc.h:343
BufferedTransformation::MaxRetrievable
virtual lword MaxRetrievable() const
Provides the number of bytes ready for retrieval.
Definition: cryptlib.cpp:504
BufferedTransformation::GetWord32
size_t GetWord32(word32 &value, ByteOrder order=BIG_ENDIAN_ORDER)
Retrieve a 32-bit word.
Definition: cryptlib.cpp:798
RandomNumberGenerator::GenerateBit
virtual unsigned int GenerateBit()
Generate new random bit and return it.
Definition: cryptlib.cpp:271
Unflushable
Base class for unflushable filters.
Definition: simple.h:108
PK_Signer::Sign
virtual size_t Sign(RandomNumberGenerator &rng, PK_MessageAccumulator *messageAccumulator, byte *signature) const
Sign and delete the messageAccumulator.
Definition: cryptlib.cpp:909
PK_Encryptor::CreateEncryptionFilter
virtual BufferedTransformation * CreateEncryptionFilter(RandomNumberGenerator &rng, BufferedTransformation *attachment=NULL, const NameValuePairs &parameters=g_nullNameValuePairs) const
Create a new encryption filter.
Definition: cryptlib.cpp:856
fips140.h
Classes and functions for the FIPS 140-2 validated library.
HashTransformation::DigestSize
virtual unsigned int DigestSize() const =0
Provides the digest size of the hash.
PK_CryptoSystem::CiphertextLength
virtual size_t CiphertextLength(size_t plaintextLength) const =0
Calculate the length of ciphertext given length of plaintext.
AuthenticatedSymmetricCipher::EncryptAndAuthenticate
virtual void EncryptAndAuthenticate(byte *ciphertext, byte *mac, size_t macSize, const byte *iv, int ivLength, const byte *header, size_t headerLength, const byte *message, size_t messageLength)
Encrypts and calculates a MAC in one call.
Definition: cryptlib.cpp:247
xorbuf
void xorbuf(byte *buf, const byte *mask, size_t count)
Performs an XOR of a buffer with a mask.
Definition: misc.cpp:32
BufferedTransformation::CopyTo
lword CopyTo(BufferedTransformation &target, lword copyMax=LWORD_MAX, const std::string &channel=DEFAULT_CHANNEL) const
copy copyMax bytes of the buffered output to target as input
Definition: cryptlib.h:1926
BlockTransformation::BT_XorInput
Xor inputs before transformation.
Definition: cryptlib.h:893
BufferedTransformation::CreatePutSpace
virtual byte * CreatePutSpace(size_t &size)
Request space which can be written into by the caller.
Definition: cryptlib.h:1659
KeyDerivationFunction::MaxDerivedLength
virtual size_t MaxDerivedLength() const
Determine maximum number of bytes.
Definition: cryptlib.cpp:341
GeneratableCryptoMaterial::GenerateRandom
virtual void GenerateRandom(RandomNumberGenerator &rng, const NameValuePairs &params=g_nullNameValuePairs)
Generate a random key or crypto parameters.
Definition: cryptlib.h:2410
BufferedTransformation::SkipAll
virtual void SkipAll()
Skip all messages in the series.
Definition: cryptlib.cpp:673
GeneratableCryptoMaterial::GenerateRandomWithKeySize
void GenerateRandomWithKeySize(RandomNumberGenerator &rng, unsigned int keySize)
Generate a random key or crypto parameters.
Definition: cryptlib.cpp:811
IntToString
std::string IntToString(T value, unsigned int base=10)
Converts a value to a string.
Definition: misc.h:604
BufferedTransformation::PutWord16
size_t PutWord16(word16 value, ByteOrder order=BIG_ENDIAN_ORDER, bool blocking=true)
Input a 16-bit word for processing.
Definition: cryptlib.cpp:745
VerifyBufsEqual
bool VerifyBufsEqual(const byte *buf1, const byte *buf2, size_t count)
Performs a near constant-time comparison of two equally sized buffers.
Definition: misc.cpp:100
PK_Signer::NewSignatureAccumulator
virtual PK_MessageAccumulator * NewSignatureAccumulator(RandomNumberGenerator &rng) const =0
Create a new HashTransformation to accumulate the message to be signed.
BufferedTransformation::GetNextMessage
virtual bool GetNextMessage()
Start retrieving the next message.
Definition: cryptlib.cpp:613
InvalidDerivedLength
Exception thrown when an invalid derived key length is encountered.
Definition: simple.h:73
PK_Signer::SignAndRestart
virtual size_t SignAndRestart(RandomNumberGenerator &rng, PK_MessageAccumulator &messageAccumulator, byte *signature, bool restart=true) const =0
Sign and restart messageAccumulator.
DecodingResult::isValidCoding
bool isValidCoding
Flag to indicate the decoding is valid.
Definition: cryptlib.h:276
BufferedTransformation::PeekWord16
size_t PeekWord16(word16 &value, ByteOrder order=BIG_ENDIAN_ORDER) const
Peek a 16-bit word.
Definition: cryptlib.cpp:762
AuthenticatedSymmetricCipher::SpecifyDataLengths
void SpecifyDataLengths(lword headerLength, lword messageLength, lword footerLength=0)
Prescribes the data lengths.
Definition: cryptlib.cpp:233
BitBucket
Acts as an input discarding Filter or Sink.
Definition: simple.h:349
BlockTransformation::BT_ReverseDirection
perform the transformation in reverse
Definition: cryptlib.h:895
BufferedTransformation::Get
virtual size_t Get(byte &outByte)
Retrieve a 8-bit byte.
Definition: cryptlib.cpp:527
LibraryVersion
int LibraryVersion(...)
Specifies the build-time version of the library.
Definition: cryptlib.cpp:984
CryptoPP
Crypto++ library namespace.
AuthenticatedKeyAgreementDomain::GenerateEphemeralPrivateKey
virtual void GenerateEphemeralPrivateKey(RandomNumberGenerator &rng, byte *privateKey) const =0
Generate ephemeral private key.
NameValuePairs::GetValue
bool GetValue(const char *name, T &value) const
Get a named value.
Definition: cryptlib.h:350
SimpleKeyingInterface::UNPREDICTABLE_RANDOM_IV
The IV must be random and unpredictable.
Definition: cryptlib.h:697
SimpleKeyingInterface::IsResynchronizable
bool IsResynchronizable() const
Determines if the object can be resynchronized.
Definition: cryptlib.h:712
PK_Verifier::Recover
virtual DecodingResult Recover(byte *recoveredMessage, PK_MessageAccumulator *messageAccumulator) const
Recover a message from its signature.
Definition: cryptlib.cpp:945
PK_Verifier::InputSignature
virtual void InputSignature(PK_MessageAccumulator &messageAccumulator, const byte *signature, size_t signatureLength) const =0
Input signature into a message accumulator.
BufferedTransformation::TransferMessagesTo
unsigned int TransferMessagesTo(BufferedTransformation &target, unsigned int count=UINT_MAX, const std::string &channel=DEFAULT_CHANNEL)
Transfer messages from this object to another BufferedTransformation.
Definition: cryptlib.h:1983
ClassNullRNG::CanIncorporateEntropy
bool CanIncorporateEntropy() const
An implementation that returns false.
Definition: cryptlib.cpp:389
ClassNullRNG::IncorporateEntropy
void IncorporateEntropy(const byte *input, size_t length)
An implementation that throws NotImplemented.
Definition: cryptlib.cpp:387
AAD_CHANNEL
const std::string AAD_CHANNEL
Channel for additional authenticated data.
Definition: cryptlib.h:491
BufferedTransformation::PutModifiable2
virtual size_t PutModifiable2(byte *inString, size_t length, int messageEnd, bool blocking)
Input multiple bytes that may be modified by callee.
Definition: cryptlib.h:1717
BufferedTransformation::Initialize
virtual void Initialize(const NameValuePairs &parameters=g_nullNameValuePairs, int propagation=-1)
Initialize or reinitialize this object, with signal propagation.
Definition: cryptlib.cpp:433
BufferedTransformation::ChannelPutWord16
size_t ChannelPutWord16(const std::string &channel, word16 value, ByteOrder order=BIG_ENDIAN_ORDER, bool blocking=true)
Input a 16-bit word for processing on a channel.
Definition: cryptlib.cpp:733
AuthenticatedSymmetricCipher::MaxFooterLength
virtual lword MaxFooterLength() const
Provides the the maximum length of AAD.
Definition: cryptlib.h:1313
ClassNullRNG::DiscardBytes
void DiscardBytes(size_t n)
An implementation that does nothing.
Definition: cryptlib.cpp:391
SimpleKeyingInterface::GetNextIV
virtual void GetNextIV(RandomNumberGenerator &rng, byte *iv)
Retrieves a secure IV for the next message.
Definition: cryptlib.cpp:136
ByteQueue::Get
size_t Get(byte &outByte)
Retrieve a 8-bit byte.
Definition: queue.cpp:301
HashTransformation::Update
virtual void Update(const byte *input, size_t length)=0
Updates a hash with additional input.
BitPrecision
unsigned int BitPrecision(const T &value)
Returns the number of bits required for a value.
Definition: misc.h:722
SecBlock::size
size_type size() const
Provides the count of elements in the SecBlock.
Definition: secblock.h:797
BufferedTransformation::Attachable
virtual bool Attachable()
Determines whether the object allows attachment.
Definition: cryptlib.h:2237
RandomNumberGenerator::GenerateIntoBufferedTransformation
virtual void GenerateIntoBufferedTransformation(BufferedTransformation &target, const std::string &channel, lword length)
Generate random bytes into a BufferedTransformation.
Definition: cryptlib.cpp:324
osrng.h
Classes for access to the operating system&#39;s random number generators.
BufferedTransformation::ChannelMessageEnd
bool ChannelMessageEnd(const std::string &channel, int propagation=-1, bool blocking=true)
Signal the end of a message.
Definition: cryptlib.h:2155
StreamTransformation::MinLastBlockSize
virtual unsigned int MinLastBlockSize() const
Provides the size of the last block.
Definition: cryptlib.h:993
BlockTransformation::BT_InBlockIsCounter
inBlock is a counter
Definition: cryptlib.h:889
NameValuePairs
Interface for retrieving values given their names.
Definition: cryptlib.h:293
PK_Decryptor::Decrypt
virtual DecodingResult Decrypt(RandomNumberGenerator &rng, const byte *ciphertext, size_t ciphertextLength, byte *plaintext, const NameValuePairs &parameters=g_nullNameValuePairs) const =0
Decrypt a byte string.
PK_DefaultEncryptionFilter::Put2
size_t Put2(const byte *inString, size_t length, int messageEnd, bool blocking)
Input multiple bytes for processing.
Definition: cryptlib.cpp:825