6 #if CRYPTOPP_MSC_VERSION 7 # pragma warning(disable: 4127 4189 4459) 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" 16 #ifndef CRYPTOPP_IMPORTS 31 #if (defined(__CYGWIN__) || defined(__CYGWIN32__)) && defined(PREFER_WINDOWS_STYLE_SOCKETS) 32 # error Cygwin does not support Windows style sockets. See http://www.cygwin.com/faq.html#faq.api.winsock 41 #ifdef CRYPTOPP_NATIVE_DWORD_AVAILABLE 45 #if HAVE_GCC_INIT_PRIORITY 47 const std::string
DEFAULT_CHANNEL __attribute__ ((init_priority (CRYPTOPP_INIT_PRIORITY + 25))) =
"";
48 const std::string
AAD_CHANNEL __attribute__ ((init_priority (CRYPTOPP_INIT_PRIORITY + 26))) =
"AAD";
49 const std::string &BufferedTransformation::NULL_CHANNEL =
DEFAULT_CHANNEL;
50 #elif HAVE_MSC_INIT_PRIORITY 51 #pragma warning(disable: 4073) 55 const std::string &BufferedTransformation::NULL_CHANNEL =
DEFAULT_CHANNEL;
56 #pragma warning(default: 4073) 58 static const std::string s1(
""), s2(
"AAD");
59 const std::string DEFAULT_CHANNEL = s1;
60 const std::string AAD_CHANNEL = s2;
61 const std::string &BufferedTransformation::NULL_CHANNEL =
DEFAULT_CHANNEL;
67 bool GetVoidValue(
const char *name,
const std::type_info &valueType,
void *pValue)
const 68 {CRYPTOPP_UNUSED(name); CRYPTOPP_UNUSED(valueType); CRYPTOPP_UNUSED(pValue);
return false;}
71 #if HAVE_GCC_INIT_PRIORITY 90 throw SelfTestFailure(
"Cryptographic algorithms are disabled before the power-up self tests are performed.");
93 throw SelfTestFailure(
"Cryptographic algorithms are disabled after a power-up self test failed.");
99 this->ThrowIfInvalidKeyLength(length);
100 this->UncheckedSetKey(key, (
unsigned int)length, params);
113 void SimpleKeyingInterface::ThrowIfInvalidKeyLength(
size_t length)
115 if (!IsValidKeyLength(length))
119 void SimpleKeyingInterface::ThrowIfResynchronizable()
121 if (IsResynchronizable())
122 throw InvalidArgument(GetAlgorithm().AlgorithmName() +
": this object requires an IV");
125 void SimpleKeyingInterface::ThrowIfInvalidIV(
const byte *iv)
127 if (!iv && IVRequirement() == UNPREDICTABLE_RANDOM_IV)
128 throw InvalidArgument(GetAlgorithm().AlgorithmName() +
": this object cannot use a null IV");
131 size_t SimpleKeyingInterface::ThrowIfInvalidIVLength(
int size)
135 else if ((
size_t)size < MinIVLength())
137 else if ((
size_t)size > MaxIVLength())
143 const byte * SimpleKeyingInterface::GetIVAndThrowIfInvalid(
const NameValuePairs ¶ms,
size_t &size)
154 iv = ivWithLength.
begin();
155 ThrowIfInvalidIV(iv);
156 size = ThrowIfInvalidIVLength((
int)ivWithLength.
size());
161 ThrowIfInvalidIV(iv);
167 ThrowIfResynchronizable();
185 size_t inIncrement = (flags & (BT_InBlockIsCounter|BT_DontIncrementInOutPointers)) ? 0 : blockSize;
186 size_t xorIncrement = xorBlocks ? blockSize : 0;
187 size_t outIncrement = (flags & BT_DontIncrementInOutPointers) ? 0 : blockSize;
189 if (flags & BT_ReverseDirection)
192 inBlocks += length - blockSize;
193 xorBlocks += length - blockSize;
194 outBlocks += length - blockSize;
195 inIncrement = 0-inIncrement;
196 xorIncrement = 0-xorIncrement;
197 outIncrement = 0-outIncrement;
200 while (length >= blockSize)
202 if (flags & BT_XorInput)
206 #if defined(__COVERITY__) 209 xorbuf(outBlocks, xorBlocks, inBlocks, blockSize);
210 ProcessBlock(outBlocks);
215 ProcessAndXorBlock(inBlocks, xorBlocks, outBlocks);
218 if (flags & BT_InBlockIsCounter)
219 const_cast<byte *
>(inBlocks)[blockSize-1]++;
220 inBlocks += inIncrement;
221 outBlocks += outIncrement;
222 xorBlocks += xorIncrement;
231 return GetAlignmentOf<word32>();
236 return GetAlignmentOf<word32>();
241 return GetAlignmentOf<word32>();
248 if (length == MandatoryBlockSize())
249 ProcessData(outString, inString, length);
250 else if (length != 0)
251 throw NotImplemented(AlgorithmName() +
": this object does't support a special last block");
256 if (headerLength > MaxHeaderLength())
259 if (messageLength > MaxMessageLength())
262 if (footerLength > MaxFooterLength())
265 UncheckedSpecifyDataLengths(headerLength, messageLength, footerLength);
270 Resynchronize(iv, ivLength);
271 SpecifyDataLengths(headerLength, messageLength);
272 Update(header, headerLength);
273 ProcessString(ciphertext, message, messageLength);
274 TruncatedFinal(mac, macSize);
279 Resynchronize(iv, ivLength);
280 SpecifyDataLengths(headerLength, ciphertextLength);
281 Update(header, headerLength);
282 ProcessString(message, ciphertext, ciphertextLength);
283 return TruncatedVerify(mac, macLength);
288 return GenerateByte() & 1;
294 GenerateBlock(&b, 1);
300 const word32 range = max-min;
307 GenerateBlock((byte *)&value,
sizeof(value));
308 value =
Crop(value, maxBits);
309 }
while (value > range);
328 CRYPTOPP_UNUSED(output), CRYPTOPP_UNUSED(size);
332 throw NotImplemented(
"RandomNumberGenerator: GenerateBlock not implemented");
336 GenerateIntoBufferedTransformation(s, DEFAULT_CHANNEL, size);
341 GenerateIntoBufferedTransformation(
TheBitBucket(), DEFAULT_CHANNEL, n);
350 GenerateBlock(buffer, len);
351 size_t rem = target.
ChannelPut(channel, buffer, len);
369 #if defined(CRYPTOPP_DOXYGEN_PROCESSING) 381 CRYPTOPP_UNUSED(output); CRYPTOPP_UNUSED(size);
382 throw NotImplemented(
"NullRNG: NullRNG should only be passed to functions that don't need to generate random bytes");
385 #if defined(CRYPTOPP_DOXYGEN_PROCESSING) 398 Clonable* Clone ()
const {
return NULL; }
410 ThrowIfInvalidTruncatedSize(digestLength);
412 TruncatedFinal(digest, digestLength);
416 void HashTransformation::ThrowIfInvalidTruncatedSize(
size_t size)
const 437 CRYPTOPP_UNUSED(propagation);
439 IsolatedInitialize(parameters);
444 CRYPTOPP_UNUSED(propagation);
446 return IsolatedFlush(hardFlush, blocking);
451 CRYPTOPP_UNUSED(propagation);
453 return IsolatedMessageSeriesEnd(blocking);
459 return CreatePutSpace(size);
467 return Put2(begin, length, messageEnd, blocking);
475 return PutModifiable2(begin, length, messageEnd, blocking);
477 return ChannelPut2(channel, begin, length, messageEnd, blocking);
483 return Flush(completeFlush, propagation, blocking);
491 return MessageSeriesEnd(propagation, blocking);
498 if (AttachedTransformation())
499 return AttachedTransformation()->MaxRetrievable();
506 if (AttachedTransformation())
507 return AttachedTransformation()->AnyRetrievable();
517 if (AttachedTransformation())
518 return AttachedTransformation()->Get(outByte);
520 return Get(&outByte, 1);
525 if (AttachedTransformation())
526 return AttachedTransformation()->Get(outString, getMax);
530 return (
size_t)TransferTo(arraySink, getMax);
536 if (AttachedTransformation())
537 return AttachedTransformation()->Peek(outByte);
539 return Peek(&outByte, 1);
544 if (AttachedTransformation())
545 return AttachedTransformation()->Peek(outString, peekMax);
549 return (
size_t)CopyTo(arraySink, peekMax);
555 if (AttachedTransformation())
556 return AttachedTransformation()->Skip(skipMax);
563 if (AttachedTransformation())
564 return AttachedTransformation()->TotalBytesRetrievable();
566 return MaxRetrievable();
571 if (AttachedTransformation())
572 return AttachedTransformation()->NumberOfMessages();
579 if (AttachedTransformation())
580 return AttachedTransformation()->AnyMessages();
582 return NumberOfMessages() != 0;
587 if (AttachedTransformation())
588 return AttachedTransformation()->GetNextMessage();
598 if (AttachedTransformation())
599 return AttachedTransformation()->SkipMessages(count);
606 if (AttachedTransformation())
607 return AttachedTransformation()->TransferMessagesTo2(target, messageCount, channel, blocking);
610 unsigned int maxMessages = messageCount;
611 for (messageCount=0; messageCount < maxMessages && AnyMessages(); messageCount++)
614 lword transferredBytes;
616 while (AnyRetrievable())
618 transferredBytes = LWORD_MAX;
619 blockedBytes = TransferTo2(target, transferredBytes, channel, blocking);
620 if (blockedBytes > 0)
627 bool result = GetNextMessage();
636 if (AttachedTransformation())
637 return AttachedTransformation()->CopyMessagesTo(target, count, channel);
644 if (AttachedTransformation())
645 AttachedTransformation()->SkipAll();
648 while (SkipMessages()) {}
655 if (AttachedTransformation())
656 return AttachedTransformation()->TransferAllTo2(target, channel, blocking);
661 unsigned int messageCount;
664 messageCount = UINT_MAX;
665 size_t blockedBytes = TransferMessagesTo2(target, messageCount, channel, blocking);
669 while (messageCount != 0);
674 byteCount = ULONG_MAX;
675 size_t blockedBytes = TransferTo2(target, byteCount, channel, blocking);
679 while (byteCount != 0);
687 if (AttachedTransformation())
688 AttachedTransformation()->CopyAllTo(target, channel);
692 while (CopyMessagesTo(target, UINT_MAX, channel)) {}
698 if (AttachedTransformation())
699 AttachedTransformation()->SetRetrievalChannel(channel);
704 PutWord(
false, order, m_buf, value);
705 return ChannelPut(channel, m_buf, 2, blocking);
710 PutWord(
false, order, m_buf, value);
711 return ChannelPut(channel, m_buf, 4, blocking);
716 return ChannelPutWord16(DEFAULT_CHANNEL, value, order, blocking);
721 return ChannelPutWord32(DEFAULT_CHANNEL, value, order, blocking);
726 byte buf[2] = {0, 0};
727 size_t len = Peek(buf, 2);
730 value = (buf[0] << 8) | buf[1];
732 value = (buf[1] << 8) | buf[0];
739 byte buf[4] = {0, 0, 0, 0};
740 size_t len = Peek(buf, 4);
743 value = (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf [3];
745 value = (buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | buf [0];
752 return (
size_t)Skip(PeekWord16(value, order));
757 return (
size_t)Skip(PeekWord32(value, order));
762 if (AttachedTransformation() && AttachedTransformation()->Attachable())
763 AttachedTransformation()->Attach(newOut);
777 : m_rng(rng), m_encryptor(encryptor), m_parameters(parameters)
782 size_t Put2(
const byte *inString,
size_t length,
int messageEnd,
bool blocking)
785 m_plaintextQueue.Put(inString, length);
790 size_t plaintextLength;
791 if (!
SafeConvert(m_plaintextQueue.CurrentSize(), plaintextLength))
792 throw InvalidArgument(
"PK_DefaultEncryptionFilter: plaintext too long");
793 size_t ciphertextLength = m_encryptor.CiphertextLength(plaintextLength);
796 m_plaintextQueue.Get(plaintext, plaintextLength);
797 m_ciphertext.resize(ciphertextLength);
798 m_encryptor.Encrypt(m_rng, plaintext, plaintextLength, m_ciphertext, m_parameters);
801 FILTER_OUTPUT(1, m_ciphertext, m_ciphertext.size(), messageEnd);
803 FILTER_END_NO_MESSAGE_END;
822 : m_rng(rng), m_decryptor(decryptor), m_parameters(parameters)
827 size_t Put2(
const byte *inString,
size_t length,
int messageEnd,
bool blocking)
830 m_ciphertextQueue.Put(inString, length);
835 size_t ciphertextLength;
836 if (!
SafeConvert(m_ciphertextQueue.CurrentSize(), ciphertextLength))
837 throw InvalidArgument(
"PK_DefaultDecryptionFilter: ciphertext too long");
838 size_t maxPlaintextLength = m_decryptor.MaxPlaintextLength(ciphertextLength);
841 m_ciphertextQueue.Get(ciphertext, ciphertextLength);
842 m_plaintext.resize(maxPlaintextLength);
843 m_result = m_decryptor.Decrypt(m_rng, ciphertext, ciphertextLength, m_plaintext, m_parameters);
844 if (!m_result.isValidCoding)
848 FILTER_OUTPUT(1, m_plaintext, m_result.messageLength, messageEnd);
850 FILTER_END_NO_MESSAGE_END;
869 return SignAndRestart(rng, *m, signature,
false);
875 m->
Update(message, messageLen);
876 return SignAndRestart(rng, *m, signature,
false);
880 const byte *nonrecoverableMessage,
size_t nonrecoverableMessageLength, byte *signature)
const 883 InputRecoverableMessage(*m, recoverableMessage, recoverableMessageLength);
884 m->
Update(nonrecoverableMessage, nonrecoverableMessageLength);
885 return SignAndRestart(rng, *m, signature,
false);
891 return VerifyAndRestart(*m);
897 InputSignature(*m, signature, signatureLength);
898 m->
Update(message, messageLen);
899 return VerifyAndRestart(*m);
905 return RecoverAndRestart(recoveredMessage, *m);
909 const byte *nonrecoverableMessage,
size_t nonrecoverableMessageLength,
910 const byte *signature,
size_t signatureLength)
const 913 InputSignature(*m, signature, signatureLength);
914 m->
Update(nonrecoverableMessage, nonrecoverableMessageLength);
915 return RecoverAndRestart(recoveredMessage, *m);
920 GeneratePrivateKey(rng, privateKey);
921 GeneratePublicKey(rng, privateKey, publicKey);
926 GenerateStaticPrivateKey(rng, privateKey);
927 GenerateStaticPublicKey(rng, privateKey, publicKey);
932 GenerateEphemeralPrivateKey(rng, privateKey);
933 GenerateEphemeralPublicKey(rng, privateKey, publicKey);
Used to pass byte array input as part of a NameValuePairs object.
bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const
Get a named value.
Standard names for retrieving values by name when working with NameValuePairs.
const char * DigestSize()
int, in bytes
An invalid argument was detected.
virtual void GenerateKeyPair(RandomNumberGenerator &rng, byte *privateKey, byte *publicKey) const
Generate a private/public key pair.
container of wait objects
Classes for working with NameValuePairs.
word32 GenerateWord32(word32 min, word32 max)
An implementation that throws NotImplemented.
bool SafeConvert(T1 from, T2 &to)
Tests whether a conversion from -> to is safe to perform.
Utility functions for the Crypto++ library.
virtual void SetKey(const byte *key, size_t length, const NameValuePairs ¶ms=g_nullNameValuePairs)
Sets or reset the key of this object.
ByteOrder
Provides the byte ordering.
virtual void GenerateBlock(byte *output, size_t size)
Generate random array of bytes.
size_t size() const
Length of the memory block.
virtual bool Verify(PK_MessageAccumulator *messageAccumulator) const
Check whether messageAccumulator contains a valid signature and message.
virtual size_t SignMessage(RandomNumberGenerator &rng, const byte *message, size_t messageLen, byte *signature) const
Sign a message.
Exception thrown when an invalid key length is encountered.
virtual void GenerateStaticKeyPair(RandomNumberGenerator &rng, byte *privateKey, byte *publicKey) const
Generate a static private/public key pair.
Interface for public-key encryptors.
byte GenerateByte()
An implementation that throws NotImplemented.
virtual word32 GenerateWord32(word32 min=0, word32 max=0xffffffffUL)
Generate a random 32 bit word in the range min to max, inclusive.
Abstract base classes that provide a uniform interface to this library.
Thrown when an unexpected type is encountered.
BufferedTransformation & TheBitBucket()
An input discarding BufferedTransformation.
void GenerateBlock(byte *output, size_t size)
An implementation that throws NotImplemented.
virtual void DiscardBytes(size_t n)
Generate and discard n bytes.
The self tests were executed via DoPowerUpSelfTest() or DoDllPowerUpSelfTest(), but the result was fa...
Classes for automatic resource management.
void GenerateIntoBufferedTransformation(BufferedTransformation &target, const std::string &channel, lword length)
An implementation that throws NotImplemented.
Library configuration file.
Interface for random number generators.
void SetKeyWithRounds(const byte *key, size_t length, int rounds)
Sets or reset the key of this object.
virtual void GenerateEphemeralKeyPair(RandomNumberGenerator &rng, byte *privateKey, byte *publicKey) const
Generate private/public key pair.
Interface for cloning objects.
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.
std::string AlgorithmName() const
The name of the generator.
size_t Put2(const byte *inString, size_t length, int messageEnd, bool blocking)
Input multiple bytes for processing.
Classes and functions for secure memory allocations.
bool FIPS_140_2_ComplianceEnabled()
Determines whether the library provides FIPS validated cryptography.
Copy input to a memory buffer.
Returns a decoding results.
Algorithm(bool checkSelfTestStatus=true)
Interface for all crypto algorithms.
Interface for public-key decryptors.
void Shuffle(IT begin, IT end)
An implementation that does nothing.
A method was called which was not implemented.
const byte * begin() const
Pointer to the first byte in the memory block.
const std::string DEFAULT_CHANNEL
Default channel for BufferedTransformation.
AlgorithmParameters MakeParameters(const char *name, const T &value, bool throwIfNotUsed=true)
Create an object that implements NameValuePairs.
Manages resources for a single object.
Exception thrown when a crypto algorithm is used after a self test fails.
virtual DecodingResult RecoverMessage(byte *recoveredMessage, const byte *nonrecoverableMessage, size_t nonrecoverableMessageLength, const byte *signature, size_t signatureLength) const
Recover a message from its signature.
#define CRYPTOPP_COMPILE_ASSERT(expr)
Compile time assertion.
T Crop(T value, size_t bits)
Truncates the value to the specified number of bits.
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.
const T1 UnsignedMin(const T1 &a, const T2 &b)
Safe comparison of values that could be neagtive and incorrectly promoted.
const NameValuePairs & g_nullNameValuePairs
An empty set of name-value pairs.
unsigned int GenerateBit()
An implementation that throws NotImplemented.
virtual BufferedTransformation * CreateDecryptionFilter(RandomNumberGenerator &rng, BufferedTransformation *attachment=NULL, const NameValuePairs ¶meters=g_nullNameValuePairs) const
Create a new decryption filter.
RandomNumberGenerator & NullRNG()
Random Number Generator that does not produce random numbers.
#define CRYPTOPP_ASSERT(exp)
Debugging and diagnostic assertion.
virtual byte GenerateByte()
Generate new random byte and return it.
Data structure used to store byte strings.
const char * BlockSize()
int, in bytes
PowerUpSelfTestStatus GetPowerUpSelfTestStatus()
Provides the current power-up self test status.
Random Number Generator that does not produce random numbers.
Implementation of BufferedTransformation's attachment interface.
const char * IV()
ConstByteArrayParameter, also accepts const byte * for backwards compatibility.
The self tests have not been performed.
Interface for accumulating messages to be signed or verified.
A decryption filter encountered invalid ciphertext.
void SetKeyWithIV(const byte *key, size_t length, const byte *iv, size_t ivLength)
Sets or reset the key of this object.
virtual unsigned int GenerateBit()
Generate new random bit and return it.
Base class for unflushable filters.
virtual size_t Sign(RandomNumberGenerator &rng, PK_MessageAccumulator *messageAccumulator, byte *signature) const
Sign and delete the messageAccumulator.
virtual BufferedTransformation * CreateEncryptionFilter(RandomNumberGenerator &rng, BufferedTransformation *attachment=NULL, const NameValuePairs ¶meters=g_nullNameValuePairs) const
Create a new encryption filter.
Classes and functions for the FIPS 140-2 validated library.
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.
void xorbuf(byte *buf, const byte *mask, size_t count)
Performs an XOR of a buffer with a mask.
virtual bool 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)
Decrypts and verifies a MAC in one call.
void GenerateRandomWithKeySize(RandomNumberGenerator &rng, unsigned int keySize)
Generate a random key or crypto parameters.
std::string IntToString(T value, unsigned int base=10)
Converts a value to a string.
bool VerifyBufsEqual(const byte *buf1, const byte *buf2, size_t count)
Performs a near constant-time comparison of two equally sized buffers.
void SpecifyDataLengths(lword headerLength, lword messageLength, lword footerLength=0)
Prespecifies the data lengths.
Acts as an input discarding Filter or Sink.
Crypto++ library namespace.
bool GetValue(const char *name, T &value) const
Get a named value.
virtual DecodingResult Recover(byte *recoveredMessage, PK_MessageAccumulator *messageAccumulator) const
Recover a message from its signature.
bool CanIncorporateEntropy() const
An implementation that returns false.
void IncorporateEntropy(const byte *input, size_t length)
An implementation that throws NotImplemented.
const std::string AAD_CHANNEL
Channel for additional authenticated data.
void DiscardBytes(size_t n)
An implementation that does nothing.
virtual void GetNextIV(RandomNumberGenerator &rng, byte *iv)
Retrieves a secure IV for the next message.
unsigned int BitPrecision(const T &value)
Returns the number of bits required for a value.
size_type size() const
Provides the count of elements in the SecBlock.
virtual void GenerateIntoBufferedTransformation(BufferedTransformation &target, const std::string &channel, lword length)
Generate random bytes into a BufferedTransformation.
Classes for access to the operating system's random number generators.
Interface for retrieving values given their names.
size_t Put2(const byte *inString, size_t length, int messageEnd, bool blocking)
Input multiple bytes for processing.