randpool.h

来自「各种加密算法的集合」· C头文件 代码 · 共 36 行

#ifndef RANDPOOL_H 
#define RANDPOOL_H 

#include "cryptlib.h" 
#include "misc.h" 

class RandomPool : public RandomNumberGenerator, 
public BufferedTransformation 
{ 
public: 
// poolSize must be greater than 16 
RandomPool(unsigned int poolSize=384); 

// interface for BufferedTransformation 
void Put(byte inByte); 
void Put(const byte *inString, unsigned int length); 
int Get(byte &amt;outByte); 
unsigned int Get(byte *outString, unsigned int getMax); 
// return 0 to prevent infinite loops 
unsigned long MaxRetrieveable() {return 0;} 

// interface for RandomNumberGenerator 
byte GetByte() 
{byte b; RandomPool::Get(b); return b;} 
void GetBlock(byte *output, unsigned int size) 
{Get(output, size);} 

protected: 
void Stir(); 

private: 
SecByteBlock pool, key; 
unsigned int addPos, getPos; 
}; 

#endif