6 #ifndef CRYPTOPP_FILTERS_H
7 #define CRYPTOPP_FILTERS_H
11 #if CRYPTOPP_MSC_VERSION
12 # pragma warning(push)
13 # pragma warning(disable: 4127 4189 4231 4275 4514)
75 bool Flush(
bool hardFlush,
int propagation=-1,
bool blocking=
true);
76 bool MessageSeriesEnd(
int propagation=-1,
bool blocking=
true);
80 void Insert(
Filter *nextFilter);
82 virtual bool ShouldPropagateMessageEnd()
const {
return true;}
83 virtual bool ShouldPropagateMessageSeriesEnd()
const {
return true;}
85 void PropagateInitialize(
const NameValuePairs ¶meters,
int propagation);
95 size_t Output(
int outputSite,
const byte *inString,
size_t length,
int messageEnd,
bool blocking,
const std::string &channel=
DEFAULT_CHANNEL);
105 size_t OutputModifiable(
int outputSite,
byte *inString,
size_t length,
int messageEnd,
bool blocking,
const std::string &channel=
DEFAULT_CHANNEL);
115 bool OutputMessageEnd(
int outputSite,
int propagation,
bool blocking,
const std::string &channel=
DEFAULT_CHANNEL);
134 bool OutputFlush(
int outputSite,
bool hardFlush,
int propagation,
bool blocking,
const std::string &channel=
DEFAULT_CHANNEL);
147 bool OutputMessageSeriesEnd(
int outputSite,
int propagation,
bool blocking,
const std::string &channel=
DEFAULT_CHANNEL);
153 size_t m_inputPosition;
178 if (m_tempSpace.size() < minSize)
181 if (desiredSize >= minSize)
183 bufferSize = desiredSize;
186 m_tempSpace.New(bufferSize);
189 bufferSize = m_tempSpace.size();
190 return m_tempSpace.begin();
199 {
return HelpCreatePutSpace(target, channel, minSize, minSize, minSize);}
208 {
return HelpCreatePutSpace(target, channel, minSize, minSize, bufferSize);}
228 : m_transparent(transparent), m_currentMessageBytes(0), m_totalBytes(0)
229 , m_currentSeriesMessages(0), m_totalMessages(0), m_totalMessageSeries(0)
230 , m_begin(NULLPTR), m_length(0) {Detach(attachment); ResetMeter();}
243 void AddRangeToSkip(
unsigned int message, lword position, lword size,
bool sortNow =
true);
251 {CRYPTOPP_UNUSED(parameters); ResetMeter();}
253 lword GetCurrentMessageBytes()
const {
return m_currentMessageBytes;}
254 lword GetTotalBytes()
const {
return m_totalBytes;}
255 unsigned int GetCurrentSeriesMessages()
const {
return m_currentSeriesMessages;}
256 unsigned int GetTotalMessages()
const {
return m_totalMessages;}
257 unsigned int GetTotalMessageSeries()
const {
return m_totalMessageSeries;}
260 {
return AttachedTransformation()->CreatePutSpace(size);}
261 size_t Put2(
const byte *inString,
size_t length,
int messageEnd,
bool blocking);
262 size_t PutModifiable2(
byte *inString,
size_t length,
int messageEnd,
bool blocking);
263 bool IsolatedMessageSeriesEnd(
bool blocking);
266 size_t PutMaybeModifiable(
byte *inString,
size_t length,
int messageEnd,
bool blocking,
bool modifiable);
267 bool ShouldPropagateMessageEnd()
const {
return m_transparent;}
268 bool ShouldPropagateMessageSeriesEnd()
const {
return m_transparent;}
272 inline bool operator<(
const MessageRange &b)
const
273 {
return message < b.message || (message == b.message && position < b.position);}
274 unsigned int message; lword position; lword size;
278 lword m_currentMessageBytes, m_totalBytes;
279 unsigned int m_currentSeriesMessages, m_totalMessages, m_totalMessageSeries;
280 std::deque<MessageRange> m_rangesToSkip;
329 size_t Put2(
const byte *inString,
size_t length,
int messageEnd,
bool blocking)
331 return PutMaybeModifiable(
const_cast<byte *
>(inString), length, messageEnd, blocking,
false);
334 size_t PutModifiable2(
byte *inString,
size_t length,
int messageEnd,
bool blocking)
336 return PutMaybeModifiable(inString, length, messageEnd, blocking,
true);
344 bool IsolatedFlush(
bool hardFlush,
bool blocking);
352 virtual bool DidFirstPut()
const {
return m_firstInputDone;}
353 virtual size_t GetFirstPutSize()
const {
return m_firstSize;}
354 virtual size_t GetBlockPutSize()
const {
return m_blockSize;}
355 virtual size_t GetLastPutSize()
const {
return m_lastSize;}
357 virtual void InitializeDerivedAndReturnNewSizes(
const NameValuePairs ¶meters,
size_t &firstSize,
size_t &blockSize,
size_t &lastSize)
358 {CRYPTOPP_UNUSED(parameters); CRYPTOPP_UNUSED(firstSize); CRYPTOPP_UNUSED(blockSize); CRYPTOPP_UNUSED(lastSize); InitializeDerived(parameters);}
360 {CRYPTOPP_UNUSED(parameters);}
364 virtual void FirstPut(
const byte *inString) =0;
366 virtual void NextPutSingle(
const byte *inString)
370 virtual void NextPutMultiple(
const byte *inString,
size_t length);
372 virtual void NextPutModifiable(
byte *inString,
size_t length)
373 {NextPutMultiple(inString, length);}
384 virtual void LastPut(
const byte *inString,
size_t length) =0;
385 virtual void FlushDerived() {}
388 size_t PutMaybeModifiable(
byte *begin,
size_t length,
int messageEnd,
bool blocking,
bool modifiable);
389 void NextPutMaybeModifiable(
byte *inString,
size_t length,
bool modifiable)
391 if (modifiable) NextPutModifiable(inString, length);
392 else NextPutMultiple(inString, length);
397 virtual int NextPut(
const byte *inString,
size_t length)
398 {CRYPTOPP_UNUSED(inString); CRYPTOPP_UNUSED(length);
CRYPTOPP_ASSERT(
false);
return 0;}
403 void ResetQueue(
size_t blockSize,
size_t maxBlocks);
405 byte *GetContigousBlocks(
size_t &numberOfBytes);
406 size_t GetAll(
byte *outString);
407 void Put(
const byte *inString,
size_t length);
408 size_t CurrentSize()
const {
return m_size;}
409 size_t MaxSize()
const {
return m_buffer.size();}
413 size_t m_blockSize, m_maxBlocks, m_size;
417 size_t m_firstSize, m_blockSize, m_lastSize;
418 bool m_firstInputDone;
435 size_t Put2(
const byte *inString,
size_t length,
int messageEnd,
bool blocking)
440 m_inQueue.Put(inString, length);
443 IsolatedMessageEnd(blocking);
444 Output(0, NULLPTR, 0, messageEnd, blocking);
450 virtual bool IsolatedMessageEnd(
bool blocking) =0;
452 {CRYPTOPP_UNUSED(parameters); m_inQueue.Clear();}
532 void InitializeDerivedAndReturnNewSizes(
const NameValuePairs ¶meters,
size_t &firstSize,
size_t &blockSize,
size_t &lastSize);
533 void FirstPut(
const byte *inString);
534 void NextPutMultiple(
const byte *inString,
size_t length);
535 void NextPutModifiable(
byte *inString,
size_t length);
536 void LastPut(
const byte *inString,
size_t length);
542 unsigned int m_mandatoryBlockSize;
543 unsigned int m_optimalBufferSize;
544 unsigned int m_reservedBufferSize;
566 size_t Put2(
const byte *inString,
size_t length,
int messageEnd,
bool blocking);
567 byte *
CreatePutSpace(
size_t &size) {
return m_hashModule.CreateUpdateSpace(size);}
572 unsigned int m_digestSize;
574 std::string m_messagePutChannel, m_hashPutChannel;
589 :
Exception(DATA_INTEGRITY_CHECK_FAILED,
"HashVerificationFilter: message hash or MAC not valid") {}
609 DEFAULT_FLAGS = HASH_AT_BEGIN | PUT_RESULT
621 bool GetLastResult()
const {
return m_verified;}
624 void InitializeDerivedAndReturnNewSizes(
const NameValuePairs ¶meters,
size_t &firstSize,
size_t &blockSize,
size_t &lastSize);
625 void FirstPut(
const byte *inString);
626 void NextPutMultiple(
const byte *inString,
size_t length);
627 void LastPut(
const byte *inString,
size_t length);
634 unsigned int m_digestSize;
661 byte * ChannelCreatePutSpace(
const std::string &channel,
size_t &size);
662 size_t ChannelPut2(
const std::string &channel,
const byte *begin,
size_t length,
int messageEnd,
bool blocking);
674 void LastPut(
const byte *inString,
size_t length);
699 DEFAULT_FLAGS = THROW_EXCEPTION
716 byte * ChannelCreatePutSpace(
const std::string &channel,
size_t &size);
717 size_t ChannelPut2(
const std::string &channel,
const byte *begin,
size_t length,
int messageEnd,
bool blocking);
718 bool GetLastResult()
const {
return m_hashVerifier.GetLastResult();}
721 void InitializeDerivedAndReturnNewSizes(
const NameValuePairs ¶meters,
size_t &firstSize,
size_t &blockSize,
size_t &lastSize);
722 void FirstPut(
const byte *inString);
723 void NextPutMultiple(
const byte *inString,
size_t length);
735 void LastPut(
const byte *inString,
size_t length);
754 : m_rng(rng), m_signer(signer), m_messageAccumulator(signer.NewSignatureAccumulator(rng)), m_putMessage(putMessage) {Detach(attachment);}
759 size_t Put2(
const byte *inString,
size_t length,
int messageEnd,
bool blocking);
780 :
Exception(DATA_INTEGRITY_CHECK_FAILED,
"VerifierFilter: digital signature not valid") {}
790 SIGNATURE_AT_BEGIN=1,
800 DEFAULT_FLAGS = SIGNATURE_AT_BEGIN | PUT_RESULT
818 void InitializeDerivedAndReturnNewSizes(
const NameValuePairs ¶meters,
size_t &firstSize,
size_t &blockSize,
size_t &lastSize);
819 void FirstPut(
const byte *inString);
820 void NextPutMultiple(
const byte *inString,
size_t length);
821 void LastPut(
const byte *inString,
size_t length);
845 PASS_WAIT_OBJECTS = 0x02,
848 PASS_EVERYTHING = PASS_SIGNALS | PASS_WAIT_OBJECTS
854 Redirector() : m_target(NULLPTR), m_behavior(PASS_EVERYTHING) {}
860 : m_target(&target), m_behavior(behavior) {}
868 Behavior GetBehavior() {
return static_cast<Behavior
>(m_behavior);}
869 void SetBehavior(Behavior behavior) {m_behavior=behavior;}
870 bool GetPassSignals()
const {
return (m_behavior & PASS_SIGNALS) != 0;}
871 void SetPassSignals(
bool pass) {
if (pass) m_behavior |= PASS_SIGNALS;
else m_behavior &= ~static_cast<word32>(PASS_SIGNALS); }
872 bool GetPassWaitObjects()
const {
return (m_behavior & PASS_WAIT_OBJECTS) != 0;}
873 void SetPassWaitObjects(
bool pass) {
if (pass) m_behavior |= PASS_WAIT_OBJECTS;
else m_behavior &= ~static_cast<word32>(PASS_WAIT_OBJECTS); }
875 bool CanModifyInput()
const
876 {
return m_target ? m_target->CanModifyInput() :
false;}
878 void Initialize(
const NameValuePairs ¶meters,
int propagation);
879 byte * CreatePutSpace(
size_t &size)
882 return m_target->CreatePutSpace(size);
889 size_t Put2(
const byte *inString,
size_t length,
int messageEnd,
bool blocking)
890 {
return m_target ? m_target->Put2(inString, length, GetPassSignals() ? messageEnd : 0, blocking) : 0;}
891 bool Flush(
bool hardFlush,
int propagation=-1,
bool blocking=
true)
892 {
return m_target && GetPassSignals() ? m_target->Flush(hardFlush, propagation, blocking) :
false;}
893 bool MessageSeriesEnd(
int propagation=-1,
bool blocking=
true)
894 {
return m_target && GetPassSignals() ? m_target->MessageSeriesEnd(propagation, blocking) :
false;}
896 byte * ChannelCreatePutSpace(
const std::string &channel,
size_t &size)
899 return m_target->ChannelCreatePutSpace(channel, size);
906 size_t ChannelPut2(
const std::string &channel,
const byte *begin,
size_t length,
int messageEnd,
bool blocking)
907 {
return m_target ? m_target->ChannelPut2(channel, begin, length, GetPassSignals() ? messageEnd : 0, blocking) : 0;}
908 size_t ChannelPutModifiable2(
const std::string &channel,
byte *begin,
size_t length,
int messageEnd,
bool blocking)
909 {
return m_target ? m_target->ChannelPutModifiable2(channel, begin, length, GetPassSignals() ? messageEnd : 0, blocking) : 0;}
910 bool ChannelFlush(
const std::string &channel,
bool completeFlush,
int propagation=-1,
bool blocking=
true)
911 {
return m_target && GetPassSignals() ? m_target->ChannelFlush(channel, completeFlush, propagation, blocking) :
false;}
912 bool ChannelMessageSeriesEnd(
const std::string &channel,
int propagation=-1,
bool blocking=
true)
913 {
return m_target && GetPassSignals() ? m_target->ChannelMessageSeriesEnd(channel, propagation, blocking) :
false;}
915 unsigned int GetMaxWaitObjectCount()
const
916 {
return m_target && GetPassWaitObjects() ? m_target->GetMaxWaitObjectCount() : 0; }
917 void GetWaitObjects(WaitObjectContainer &container, CallStack
const& callStack)
918 {
if (m_target && GetPassWaitObjects()) m_target->GetWaitObjects(container, callStack); }
945 byte * CreatePutSpace(
size_t &size)
946 {
return m_owner.AttachedTransformation()->CreatePutSpace(size);}
947 size_t Put2(
const byte *inString,
size_t length,
int messageEnd,
bool blocking)
948 {
return m_owner.AttachedTransformation()->Put2(inString, length, m_passSignal ? messageEnd : 0, blocking);}
949 size_t PutModifiable2(
byte *begin,
size_t length,
int messageEnd,
bool blocking)
950 {
return m_owner.AttachedTransformation()->PutModifiable2(begin, length, m_passSignal ? messageEnd : 0, blocking);}
952 {
if (m_passSignal) m_owner.AttachedTransformation()->Initialize(parameters, propagation);}
953 bool Flush(
bool hardFlush,
int propagation=-1,
bool blocking=
true)
954 {
return m_passSignal ? m_owner.AttachedTransformation()->Flush(hardFlush, propagation, blocking) :
false;}
955 bool MessageSeriesEnd(
int propagation=-1,
bool blocking=
true)
956 {
return m_passSignal ? m_owner.AttachedTransformation()->MessageSeriesEnd(propagation, blocking) :
false;}
958 byte * ChannelCreatePutSpace(
const std::string &channel,
size_t &size)
959 {
return m_owner.AttachedTransformation()->ChannelCreatePutSpace(channel, size);}
960 size_t ChannelPut2(
const std::string &channel,
const byte *begin,
size_t length,
int messageEnd,
bool blocking)
961 {
return m_owner.AttachedTransformation()->ChannelPut2(channel, begin, length, m_passSignal ? messageEnd : 0, blocking);}
962 size_t ChannelPutModifiable2(
const std::string &channel,
byte *begin,
size_t length,
int messageEnd,
bool blocking)
963 {
return m_owner.AttachedTransformation()->ChannelPutModifiable2(channel, begin, length, m_passSignal ? messageEnd : 0, blocking);}
964 bool ChannelFlush(
const std::string &channel,
bool completeFlush,
int propagation=-1,
bool blocking=
true)
965 {
return m_passSignal ? m_owner.AttachedTransformation()->ChannelFlush(channel, completeFlush, propagation, blocking) :
false;}
966 bool ChannelMessageSeriesEnd(
const std::string &channel,
int propagation=-1,
bool blocking=
true)
967 {
return m_passSignal ? m_owner.AttachedTransformation()->ChannelMessageSeriesEnd(channel, propagation, blocking) :
false;}
988 bool IsolatedFlush(
bool hardFlush,
bool blocking);
992 void SetFilter(
Filter *filter);
993 void NextPutMultiple(
const byte *s,
size_t len);
994 void NextPutModifiable(
byte *inString,
size_t length);
1011 void FirstPut(
const byte * inString)
1012 {CRYPTOPP_UNUSED(inString);}
1025 {CRYPTOPP_UNUSED(inString), CRYPTOPP_UNUSED(length); m_filter->MessageEnd();}
1066 typedef typename T::value_type value_type;
1075 {
if (!parameters.
GetValue(
"OutputStringPointer", m_output))
throw InvalidArgument(
"StringSink: OutputStringPointer not specified");}
1077 size_t Put2(
const byte *inString,
size_t length,
int messageEnd,
bool blocking)
1079 CRYPTOPP_UNUSED(messageEnd); CRYPTOPP_UNUSED(blocking);
1082 typename T::size_type size = m_output->size();
1083 if (length < size && size + length > m_output->capacity())
1084 m_output->reserve(2*size);
1085 m_output->insert(m_output->end(), (
const value_type *)inString, (
const value_type *)inString+length);
1123 size_t Put2(
const byte *inString,
size_t length,
int messageEnd,
bool blocking);
1145 : m_buf(NULLPTR), m_size(0), m_total(0) {IsolatedInitialize(parameters);}
1151 : m_buf(buf), m_size(size), m_total(0) {}
1162 byte * CreatePutSpace(
size_t &size);
1163 size_t Put2(
const byte *inString,
size_t length,
int messageEnd,
bool blocking);
1189 size_t Put2(
const byte *inString,
size_t length,
int messageEnd,
bool blocking);
1219 CRYPTOPP_DLL
void StoreInitialize(
const NameValuePairs ¶meters);
1221 const byte *m_store;
1222 size_t m_length, m_count;
1233 : m_rng(NULLPTR), m_length(0), m_count(0) {}
1236 : m_rng(&rng), m_length(length), m_count(0) {}
1244 CRYPTOPP_UNUSED(target); CRYPTOPP_UNUSED(begin); CRYPTOPP_UNUSED(end); CRYPTOPP_UNUSED(channel); CRYPTOPP_UNUSED(blocking);
1245 throw NotImplemented(
"RandomNumberStore: CopyRangeTo2() is not supported by this store");
1252 lword m_length, m_count;
1260 NullStore(lword size = ULONG_MAX) : m_size(size) {}
1262 {CRYPTOPP_UNUSED(parameters);}
1303 {Pump2(pumpMax);
return pumpMax;}
1310 {PumpMessages2(count);
return count;}
1329 virtual size_t Pump2(lword &byteCount,
bool blocking=
true) =0;
1335 virtual size_t PumpMessages2(
unsigned int &messageCount,
bool blocking=
true) =0;
1341 virtual size_t PumpAll2(
bool blocking=
true);
1350 void SourceInitialize(
bool pumpAll,
const NameValuePairs ¶meters)
1352 IsolatedInitialize(parameters);
1372 {m_store.IsolatedInitialize(parameters);}
1373 size_t Pump2(lword &byteCount,
bool blocking=
true)
1380 {
return !m_store.AnyRetrievable() && !m_store.AnyMessages();}
1382 {m_store.SetAutoSignalPropagation(propagation);}
1384 {
return m_store.GetAutoSignalPropagation();}
1454 {SourceInitialize(pumpAll,
MakeParameters(
"RandomNumberGeneratorPointer", &rng)(
"RandomNumberStoreSize", length));}
1459 #if CRYPTOPP_MSC_VERSION
1460 # pragma warning(pop)
Classes for working with NameValuePairs.
AlgorithmParameters MakeParameters(const char *name, const T &value, bool throwIfNotUsed=true)
Create an object that implements NameValuePairs.
bool operator<(const OID &lhs, const OID &rhs)
Compare two OIDs for ordering.
Copy input to a memory buffer.
ArraySink(byte *buf, size_t size)
Construct an ArraySink.
lword TotalPutLength()
Provides the number of bytes written to the Sink.
ArraySink(const NameValuePairs ¶meters=g_nullNameValuePairs)
Construct an ArraySink.
size_t AvailableSize()
Provides the size remaining in the Sink.
Pointer-based implementation of the Source interface.
Xor input to a memory buffer.
ArrayXorSink(byte *buf, size_t size)
Construct an ArrayXorSink.
byte * CreatePutSpace(size_t &size)
Request space which can be written into by the caller.
Filter wrapper for decrypting with AuthenticatedSymmetricCipher.
std::string AlgorithmName() const
Provides the name of this algorithm.
Flags
Flags controlling filter behavior.
Filter wrapper for encrypting with AuthenticatedSymmetricCipher.
Interface for authenticated encryption modes of operation.
Base class for bufferless filters.
Data structure used to store byte strings.
Used to pass byte array input as part of a NameValuePairs object.
Interface for custom flush signals.
Base class for all exceptions thrown by the library.
Implementation of BufferedTransformation's attachment interface.
bool Attachable()
Determine if attachable.
void Detach(BufferedTransformation *newAttachment=NULL)
Replace an attached transformation.
BufferedTransformation * AttachedTransformation()
Retrieve attached transformation.
Access a block of memory.
Filter wrapper for HashTransformation.
byte * CreatePutSpace(size_t &size)
Request space which can be written into by the caller.
std::string AlgorithmName() const
Provides the name of this algorithm.
Exception thrown when a data integrity check failure is encountered.
Filter wrapper for HashTransformation.
Flags
Flags controlling filter behavior.
std::string AlgorithmName() const
Provides the name of this algorithm.
An invalid argument was detected.
Measure how many bytes and messages pass through the filter.
void IsolatedInitialize(const NameValuePairs ¶meters)
Initialize or reinitialize this object, without signal propagation.
byte * CreatePutSpace(size_t &size)
Request space which can be written into by the caller.
MeterFilter(BufferedTransformation *attachment=NULL, bool transparent=true)
Construct a MeterFilter.
void SetTransparent(bool transparent)
Set or change the transparent mode of this object.
Interface for retrieving values given their names.
bool GetValue(const char *name, T &value) const
Get a named value.
Ensures an object is not copyable.
A method was called which was not implemented.
lword MaxRetrievable() const
Provides the number of bytes ready for retrieval.
A non-transparent MeterFilter.
OpaqueFilter(BufferedTransformation *attachment=NULL)
Construct an OpaqueFilter.
Filter class that is a proxy for a sink.
void Initialize(const NameValuePairs ¶meters=g_nullNameValuePairs, int propagation=-1)
Initialize or reinitialize this object, with signal propagation.
OutputProxy(BufferedTransformation &owner, bool passSignal)
Construct an OutputProxy.
void SetPassSignal(bool passSignal)
Set passSignal flag.
bool Flush(bool hardFlush, int propagation=-1, bool blocking=true)
Flush buffered input and/or output, with signal propagation.
bool GetPassSignal() const
Retrieve passSignal flag.
Filter wrapper for PK_Decryptor.
PK_DecryptorFilter(RandomNumberGenerator &rng, const PK_Decryptor &decryptor, BufferedTransformation *attachment=NULL)
Construct a PK_DecryptorFilter.
Interface for public-key decryptors.
Filter wrapper for PK_Encryptor.
PK_EncryptorFilter(RandomNumberGenerator &rng, const PK_Encryptor &encryptor, BufferedTransformation *attachment=NULL)
Construct a PK_EncryptorFilter.
Interface for public-key encryptors.
Interface for public-key signers.
Interface for public-key signature verifiers.
Base class for Filter classes that are proxies for a chain of other filters.
Interface for random number generators.
Incorporates input into RNG as additional entropy.
RandomNumberSink()
Construct a RandomNumberSink.
RandomNumberSink(RandomNumberGenerator &rng)
Construct a RandomNumberSink.
void IsolatedInitialize(const NameValuePairs ¶meters)
Initialize or reinitialize this object, without signal propagation.
size_t Put2(const byte *inString, size_t length, int messageEnd, bool blocking)
Input multiple bytes for processing.
RNG-based implementation of Source interface.
RNG-based implementation of Source interface.
bool AnyRetrievable() const
Determines whether bytes are ready for retrieval.
lword MaxRetrievable() const
Provides the number of bytes ready for retrieval.
size_t CopyRangeTo2(BufferedTransformation &target, lword &begin, lword end=LWORD_MAX, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true) const
Copy bytes from this object to another BufferedTransformation.
Redirect input to another BufferedTransformation without owning it.
Redirector(BufferedTransformation &target, Behavior behavior=PASS_EVERYTHING)
Construct a Redirector.
bool Flush(bool hardFlush, int propagation=-1, bool blocking=true)
Flush buffered input and/or output, with signal propagation.
Behavior
Controls signal propagation behavior.
void StopRedirection()
Stop redirecting input.
void Redirect(BufferedTransformation &target)
Redirect input to another BufferedTransformation.
Redirector()
Construct a Redirector.
Exception thrown when an invalid signature is encountered.
Filter wrapper for PK_Verifier.
Flags
Flags controlling filter behavior.
bool GetLastResult() const
Retrieves the result of the last verification.
std::string AlgorithmName() const
Provides the name of this algorithm.
Filter wrapper for PK_Signer.
SignerFilter(RandomNumberGenerator &rng, const PK_Signer &signer, BufferedTransformation *attachment=NULL, bool putMessage=false)
Construct a SignerFilter.
std::string AlgorithmName() const
Provides the name of this algorithm.
Proxy filter that doesn't modify the underlying filter's input or output.
SimpleProxyFilter(BufferedTransformation *filter, BufferedTransformation *attachment)
Construct a SimpleProxyFilter.
void LastPut(const byte *inString, size_t length)
Input the last block of data.
Implementation of BufferedTransformation's attachment interface.
unsigned int PumpMessages(unsigned int count=UINT_MAX)
Pump messages to attached transformation.
void PumpAll()
Pump all data to attached transformation.
virtual size_t PumpMessages2(unsigned int &messageCount, bool blocking=true)=0
Pump messages to attached transformation.
virtual bool SourceExhausted() const =0
Determines if the Source is exhausted.
Source(BufferedTransformation *attachment=NULL)
Construct a Source.
virtual size_t Pump2(lword &byteCount, bool blocking=true)=0
Pump data to attached transformation.
lword Pump(lword pumpMax=...)
Pump data to attached transformation.
Transform a Store into a Source.
size_t Pump2(lword &byteCount, bool blocking=true)
Pump data to attached transformation.
size_t PumpMessages2(unsigned int &messageCount, bool blocking=true)
Pump messages to attached transformation.
bool SourceExhausted() const
Determines if the Source is exhausted.
size_t PumpAll2(bool blocking=true)
Pump all data to attached transformation.
void IsolatedInitialize(const NameValuePairs ¶meters)
Initialize or reinitialize this object, without signal propagation.
int GetAutoSignalPropagation() const
Retrieve automatic signal propagation value.
void SetAutoSignalPropagation(int propagation)
Set propagation of automatically generated and transferred signals.
Acts as a Source for pre-existing, static data.
Append input to a string object.
Append input to a string object.
size_t Put2(const byte *inString, size_t length, int messageEnd, bool blocking)
Input multiple bytes for processing.
StringSinkTemplate(T &output)
Construct a StringSinkTemplate.
void IsolatedInitialize(const NameValuePairs ¶meters)
Initialize or reinitialize this object, without signal propagation.
String-based implementation of the Source interface.
StringSource(BufferedTransformation *attachment=NULL)
Construct a StringSource.
StringSource(const std::string &string, bool pumpAll, BufferedTransformation *attachment=NULL)
Construct a StringSource.
StringSource(const char *string, bool pumpAll, BufferedTransformation *attachment=NULL)
Construct a StringSource.
StringSource(const byte *string, size_t length, bool pumpAll, BufferedTransformation *attachment=NULL)
Construct a StringSource.
String-based implementation of Store interface.
size_t CopyRangeTo2(BufferedTransformation &target, lword &begin, lword end=LWORD_MAX, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true) const
Copy bytes from this object to another BufferedTransformation.
StringStore(const byte *string, size_t length)
Construct a StringStore.
StringStore(const T &string)
Construct a StringStore.
StringStore(const char *string=NULL)
Construct a StringStore.
size_t TransferTo2(BufferedTransformation &target, lword &transferBytes, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true)
Transfer bytes from this object to another BufferedTransformation.
A transparent MeterFilter.
TransparentFilter(BufferedTransformation *attachment=NULL)
Construct a TransparentFilter.
Base class for unflushable filters.
Append input to a std::vector<byte> object.
std::vector-based implementation of the Source interface
VectorSource(const std::vector< byte > &vec, bool pumpAll, BufferedTransformation *attachment=NULL)
Construct a VectorSource.
VectorSource(BufferedTransformation *attachment=NULL)
Construct a VectorSource.
Abstract base classes that provide a uniform interface to this library.
const std::string DEFAULT_CHANNEL
Default channel for BufferedTransformation.
const NameValuePairs & g_nullNameValuePairs
An empty set of name-value pairs.
Utility functions for the Crypto++ library.
T1 SaturatingSubtract(const T1 &a, const T2 &b)
Performs a saturating subtract clamped at 0.
#define SIZE_MAX
The maximum value of a machine word.
Crypto++ library namespace.
const char * BlockPaddingScheme()
StreamTransformationFilter::BlockPaddingScheme.
Classes for an unlimited queue to store bytes.
Classes and functions for secure memory allocations.
Classes providing basic library services.
Classes for automatic resource management.
Padding schemes used for block ciphers.
BlockPaddingScheme
Padding schemes used for block ciphers.
@ DEFAULT_PADDING
Default padding scheme.
@ W3C_PADDING
W3C padding added to a block.
@ PKCS_PADDING
PKCS padding added to a block.
@ ONE_AND_ZEROS_PADDING
1 and 0's padding added to a block
@ NO_PADDING
No padding added to a block.
@ ZEROS_PADDING
0's padding added to a block
Create a working space in a BufferedTransformation.
byte * HelpCreatePutSpace(BufferedTransformation &target, const std::string &channel, size_t minSize)
Create a working space in a BufferedTransformation.
byte * HelpCreatePutSpace(BufferedTransformation &target, const std::string &channel, size_t minSize, size_t desiredSize, size_t &bufferSize)
Create a working space in a BufferedTransformation.
byte * HelpCreatePutSpace(BufferedTransformation &target, const std::string &channel, size_t minSize, size_t bufferSize)
Create a working space in a BufferedTransformation.
SecByteBlock m_tempSpace
Temporay working space.
#define CRYPTOPP_ASSERT(exp)
Debugging and diagnostic assertion.