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#ifndef CRYPTOPP_BASECODE_H
#define CRYPTOPP_BASECODE_H
#include "filters.h"
#include "algparam.h"
NAMESPACE_BEGIN(CryptoPP)
class BaseN_Encoder : public Unflushable<Filter>
{
public:
BaseN_Encoder(BufferedTransformation *attachment=NULL)
: Unflushable<Filter>(attachment) {}
BaseN_Encoder(const byte *alphabet, int log2base, BufferedTransformation *attachment=NULL, int padding=-1)
: Unflushable<Filter>(attachment)
{
IsolatedInitialize(MakeParameters("EncodingLookupArray", alphabet)
("Log2Base", log2base)
("Pad", padding != -1)
("PaddingByte", byte(padding)));
}
void IsolatedInitialize(const NameValuePairs ¶meters);
unsigned int Put2(const byte *begin, unsigned int length, int messageEnd, bool blocking);
private:
const byte *m_alphabet;
int m_padding, m_bitsPerChar, m_outputBlockSize;
int m_bytePos, m_bitPos;
SecByteBlock m_outBuf;
};
class BaseN_Decoder : public Unflushable<Filter>
{
public:
BaseN_Decoder(BufferedTransformation *attachment=NULL)
: Unflushable<Filter>(attachment) {}
BaseN_Decoder(const int *lookup, int log2base, BufferedTransformation *attachment=NULL)
: Unflushable<Filter>(attachment)
{
IsolatedInitialize(MakeParameters("DecodingLookupArray", lookup)("Log2Base", log2base));
}
void IsolatedInitialize(const NameValuePairs ¶meters);
unsigned int Put2(const byte *begin, unsigned int length, int messageEnd, bool blocking);
static void InitializeDecodingLookupArray(int *lookup, const byte *alphabet, unsigned int log2base, bool caseInsensitive);
private:
const int *m_lookup;
int m_padding, m_bitsPerChar, m_outputBlockSize;
int m_bytePos, m_bitPos;
SecByteBlock m_outBuf;
};
class Grouper : public Bufferless<Filter>
{
public:
Grouper(BufferedTransformation *attachment=NULL)
: Bufferless<Filter>(attachment) {}
Grouper(int groupSize, const std::string &seperator, const std::string &terminator, BufferedTransformation *attachment=NULL)
: Bufferless<Filter>(attachment)
{
IsolatedInitialize(MakeParameters("GroupSize", groupSize)
("Seperator", ConstByteArrayParameter(seperator))
("Terminator", ConstByteArrayParameter(terminator)));
}
void IsolatedInitialize(const NameValuePairs ¶meters);
unsigned int Put2(const byte *begin, unsigned int length, int messageEnd, bool blocking);
private:
SecByteBlock m_seperator, m_terminator;
unsigned int m_groupSize, m_counter;
};
NAMESPACE_END
#endif
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