unsigned int Grouper::Put2(const byte *begin, unsigned int length, int messageEnd, bool blocking)
{
if (m_groupSize)
{
FILTER_BEGIN;
while (m_inputPosition < length)
{
if (m_counter == m_groupSize)
{
FILTER_OUTPUT(1, m_seperator, m_seperator.size(), 0);
m_counter = 0;
}
unsigned int len;
FILTER_OUTPUT2(2, len = STDMIN(length-m_inputPosition, m_groupSize-m_counter),
begin+m_inputPosition, len, 0);
m_inputPosition += len;
m_counter += len;
}
if (messageEnd)
FILTER_OUTPUT(3, m_terminator, m_terminator.size(), messageEnd);
FILTER_END_NO_MESSAGE_END
}
else
return Output(0, begin, length, messageEnd, blocking);
size_t Grouper::Put2(const byte *begin, size_t length, int messageEnd, bool blocking)
{
FILTER_BEGIN;
if (m_groupSize)
{
while (m_inputPosition < length)
{
if (m_counter == m_groupSize)
{
FILTER_OUTPUT(1, m_separator, m_separator.size(), 0);
m_counter = 0;
}
size_t len;
FILTER_OUTPUT2(2, len = STDMIN(length-m_inputPosition, m_groupSize-m_counter),
begin+m_inputPosition, len, 0);
m_inputPosition += len;
m_counter += len;
}
}
else
FILTER_OUTPUT(3, begin, length, 0);
if (messageEnd)
{
FILTER_OUTPUT(4, m_terminator, m_terminator.size(), messageEnd);
m_counter = 0;
}
FILTER_END_NO_MESSAGE_END
}
unsigned int BaseN_Encoder::Put2(const byte *begin, unsigned int length, int messageEnd, bool blocking)
{
FILTER_BEGIN;
while (m_inputPosition < length)
{
if (m_bytePos == 0)
memset(m_outBuf, 0, m_outputBlockSize);
m_outBuf[m_bytePos] |= begin[m_inputPosition] >> (8-m_bitsPerChar+m_bitPos);
m_outBuf[m_bytePos+1] |= ((begin[m_inputPosition] << (m_bitsPerChar-m_bitPos)) & 0xff) >> (8-m_bitsPerChar);
++m_inputPosition;
m_bitPos += 8;
while (m_bitPos >= m_bitsPerChar)
{
m_bitPos -= m_bitsPerChar;
++m_bytePos;
}
if (m_bytePos == m_outputBlockSize)
{
int i;
for (i=0; i<m_bytePos; i++)
{
assert(m_outBuf[i] < (1 << m_bitsPerChar));
m_outBuf[i] = m_alphabet[m_outBuf[i]];
}
FILTER_OUTPUT(1, m_outBuf, m_outputBlockSize, 0);
m_bytePos = m_bitPos = 0;
}
}
if (messageEnd)
{
if (m_bitPos > 0)
++m_bytePos;
int i;
for (i=0; i<m_bytePos; i++)
m_outBuf[i] = m_alphabet[m_outBuf[i]];
if (m_padding != -1 && m_bytePos > 0)
{
memset(m_outBuf+m_bytePos, m_padding, m_outputBlockSize-m_bytePos);
m_bytePos = m_outputBlockSize;
}
FILTER_OUTPUT(2, m_outBuf, m_bytePos, messageEnd);
m_bytePos = m_bitPos = 0;
}
FILTER_END;
}
size_t SignerFilter::Put2(const byte *inString, size_t length, int messageEnd, bool blocking)
{
FILTER_BEGIN;
m_messageAccumulator->Update(inString, length);
if (m_putMessage)
FILTER_OUTPUT(1, inString, length, 0);
if (messageEnd)
{
m_buf.New(m_signer.SignatureLength());
m_signer.Sign(m_rng, m_messageAccumulator.release(), m_buf);
FILTER_OUTPUT(2, m_buf, m_buf.size(), messageEnd);
m_messageAccumulator.reset(m_signer.NewSignatureAccumulator(m_rng));
}
FILTER_END_NO_MESSAGE_END;
}
size_t Put2(const byte *inString, size_t length, int messageEnd, bool blocking)
{
FILTER_BEGIN;
m_ciphertextQueue.Put(inString, length);
if (messageEnd)
{
{
size_t ciphertextLength;
if (!SafeConvert(m_ciphertextQueue.CurrentSize(), ciphertextLength))
throw InvalidArgument("PK_DefaultDecryptionFilter: ciphertext too long");
size_t maxPlaintextLength = m_decryptor.MaxPlaintextLength(ciphertextLength);
SecByteBlock ciphertext(ciphertextLength);
m_ciphertextQueue.Get(ciphertext, ciphertextLength);
m_plaintext.resize(maxPlaintextLength);
m_result = m_decryptor.Decrypt(m_rng, ciphertext, ciphertextLength, m_plaintext, m_parameters);
if (!m_result.isValidCoding)
throw InvalidCiphertext(m_decryptor.AlgorithmName() + ": invalid ciphertext");
}
FILTER_OUTPUT(1, m_plaintext, m_result.messageLength, messageEnd);
}
FILTER_END_NO_MESSAGE_END;
}
unsigned int HashFilter::Put2(const byte *inString, unsigned int length, int messageEnd, bool blocking)
{
FILTER_BEGIN;
m_hashModule.Update(inString, length);
if (m_putMessage)
FILTER_OUTPUT(1, inString, length, 0);
if (messageEnd)
{
{
unsigned int size, digestSize = m_hashModule.DigestSize();
m_space = HelpCreatePutSpace(*AttachedTransformation(), NULL_CHANNEL, digestSize, digestSize, size = digestSize);
m_hashModule.Final(m_space);
}
FILTER_OUTPUT(2, m_space, m_hashModule.DigestSize(), messageEnd);
}
FILTER_END_NO_MESSAGE_END;
}
unsigned int BaseN_Decoder::Put2(const byte *begin, unsigned int length, int messageEnd, bool blocking)
{
FILTER_BEGIN;
while (m_inputPosition < length)
{
unsigned int value;
value = m_lookup[begin[m_inputPosition++]];
if (value >= 256)
continue;
if (m_bytePos == 0 && m_bitPos == 0)
memset(m_outBuf, 0, m_outputBlockSize);
{
int newBitPos = m_bitPos + m_bitsPerChar;
if (newBitPos <= 8)
m_outBuf[m_bytePos] |= value << (8-newBitPos);
else
{
m_outBuf[m_bytePos] |= value >> (newBitPos-8);
m_outBuf[m_bytePos+1] |= value << (16-newBitPos);
}
m_bitPos = newBitPos;
while (m_bitPos >= 8)
{
m_bitPos -= 8;
++m_bytePos;
}
}
if (m_bytePos == m_outputBlockSize)
{
FILTER_OUTPUT(1, m_outBuf, m_outputBlockSize, 0);
m_bytePos = m_bitPos = 0;
}
}
if (messageEnd)
{
FILTER_OUTPUT(2, m_outBuf, m_bytePos, messageEnd);
m_bytePos = m_bitPos = 0;
}
FILTER_END_NO_MESSAGE_END;
}
unsigned int MeterFilter::Put2(const byte *begin, unsigned int length, int messageEnd, bool blocking)
{
FILTER_BEGIN;
m_currentMessageBytes += length;
m_totalBytes += length;
if (messageEnd)
{
m_currentMessageBytes = 0;
m_currentSeriesMessages++;
m_totalMessages++;
}
FILTER_OUTPUT(1, begin, length, messageEnd);
FILTER_END;
}
unsigned int Put2(const byte *inString, unsigned int length, int messageEnd, bool blocking)
{
FILTER_BEGIN;
m_plaintextQueue.Put(inString, length);
if (messageEnd)
{
{
unsigned int plaintextLength = m_plaintextQueue.CurrentSize();
unsigned int ciphertextLength = m_encryptor.CiphertextLength(plaintextLength);
SecByteBlock plaintext(plaintextLength);
m_plaintextQueue.Get(plaintext, plaintextLength);
m_ciphertext.resize(ciphertextLength);
m_encryptor.Encrypt(m_rng, plaintext, plaintextLength, m_ciphertext, m_parameters);
}
FILTER_OUTPUT(1, m_ciphertext, m_ciphertext.size(), messageEnd);
}
FILTER_END_NO_MESSAGE_END;
}
unsigned int Put2(const byte *inString, unsigned int length, int messageEnd, bool blocking)
{
FILTER_BEGIN;
m_ciphertextQueue.Put(inString, length);
if (messageEnd)
{
{
unsigned int ciphertextLength = m_ciphertextQueue.CurrentSize();
unsigned int maxPlaintextLength = m_decryptor.MaxPlaintextLength(ciphertextLength);
SecByteBlock ciphertext(ciphertextLength);
m_ciphertextQueue.Get(ciphertext, ciphertextLength);
m_plaintext.resize(maxPlaintextLength);
m_result = m_decryptor.Decrypt(m_rng, ciphertext, ciphertextLength, m_plaintext, m_parameters);
if (!m_result.isValidCoding)
throw InvalidCiphertext(m_decryptor.AlgorithmName() + ": invalid ciphertext");
}
FILTER_OUTPUT(1, m_plaintext, m_result.messageLength, messageEnd);
}
FILTER_END_NO_MESSAGE_END;
}
size_t Put2(const byte *inString, size_t length, int messageEnd, bool blocking)
{
FILTER_BEGIN;
m_plaintextQueue.Put(inString, length);
if (messageEnd)
{
{
size_t plaintextLength;
if (!SafeConvert(m_plaintextQueue.CurrentSize(), plaintextLength))
throw InvalidArgument("PK_DefaultEncryptionFilter: plaintext too long");
size_t ciphertextLength = m_encryptor.CiphertextLength(plaintextLength);
SecByteBlock plaintext(plaintextLength);
m_plaintextQueue.Get(plaintext, plaintextLength);
m_ciphertext.resize(ciphertextLength);
m_encryptor.Encrypt(m_rng, plaintext, plaintextLength, m_ciphertext, m_parameters);
}
FILTER_OUTPUT(1, m_ciphertext, m_ciphertext.size(), messageEnd);
}
FILTER_END_NO_MESSAGE_END;
}
size_t BaseN_Encoder::Put2(const byte *begin, size_t length, int messageEnd, bool blocking)
{
FILTER_BEGIN;
while (m_inputPosition < length)
{
if (m_bytePos == 0)
memset(m_outBuf, 0, m_outputBlockSize);
{
unsigned int b = begin[m_inputPosition++], bitsLeftInSource = 8;
while (true)
{
assert(m_bitsPerChar-m_bitPos >= 0);
unsigned int bitsLeftInTarget = (unsigned int)(m_bitsPerChar-m_bitPos);
m_outBuf[m_bytePos] |= b >> (8-bitsLeftInTarget);
if (bitsLeftInSource >= bitsLeftInTarget)
{
m_bitPos = 0;
++m_bytePos;
bitsLeftInSource -= bitsLeftInTarget;
if (bitsLeftInSource == 0)
break;
b <<= bitsLeftInTarget;
b &= 0xff;
}
else
{
m_bitPos += bitsLeftInSource;
break;
}
}
}
assert(m_bytePos <= m_outputBlockSize);
if (m_bytePos == m_outputBlockSize)
{
int i;
for (i=0; i<m_bytePos; i++)
{
assert(m_outBuf[i] < (1 << m_bitsPerChar));
m_outBuf[i] = m_alphabet[m_outBuf[i]];
}
FILTER_OUTPUT(1, m_outBuf, m_outputBlockSize, 0);
m_bytePos = m_bitPos = 0;
}
}
if (messageEnd)
{
if (m_bitPos > 0)
++m_bytePos;
int i;
for (i=0; i<m_bytePos; i++)
m_outBuf[i] = m_alphabet[m_outBuf[i]];
if (m_padding != -1 && m_bytePos > 0)
{
memset(m_outBuf+m_bytePos, m_padding, m_outputBlockSize-m_bytePos);
m_bytePos = m_outputBlockSize;
}
FILTER_OUTPUT(2, m_outBuf, m_bytePos, messageEnd);
m_bytePos = m_bitPos = 0;
}
FILTER_END_NO_MESSAGE_END;
}
