base64.h

各种加密算法的集合

#ifndef CRYPTOPP_BASE64_H 
#define CRYPTOPP_BASE64_H 
 
#include "cryptlib.h" 
#include "filters.h" 
 
NAMESPACE_BEGIN(CryptoPP) 
 
class Base64Encoder : public Filter 
{ 
public: 
	Base64Encoder(BufferedTransformation *outQueue = NULL, bool insertLineBreak = true); 
 
	void Put(byte inByte) 
	{ 
		inBuf[inBufSize++]=inByte; 
		if (inBufSize==3) 
			EncodeQuantum(); 
	} 
 
	void Put(const byte *inString, unsigned int length); 
	void InputFinished(); 
 
private: 
	void LineBreak(); 
	void EncodeQuantum(); 
 
	const bool insertLineBreak; 
	int inBufSize; 
	int lineLength; 
	byte inBuf[3]; 
}; 
 
class Base64Decoder : public Filter 
{ 
public: 
	Base64Decoder(BufferedTransformation *outQueue = NULL); 
 
	void Put(byte inByte) 
	{ 
		int i=ConvToNumber(inByte); 
		if (i >= 0) 
			inBuf[inBufSize++]=(byte) i; 
		if (inBufSize==4) 
			DecodeQuantum(); 
	} 
 
	void Put(const byte *inString, unsigned int length); 
	void InputFinished(); 
 
private: 
	static int ConvToNumber(byte inByte); 
	void DecodeQuantum(); 
 
	int inBufSize; 
	byte inBuf[4]; 
}; 
 
NAMESPACE_END 
 
#endif