iterhash.h

来自「各种加密算法的集合」· C头文件 代码 · 共 38 行

#ifndef CRYPTOPP_ITERHASH_H 
#define CRYPTOPP_ITERHASH_H 
 
#include "cryptlib.h" 
#include "misc.h" 
 
NAMESPACE_BEGIN(CryptoPP) 
 
/* The following classes are explicitly instantiated in iterhash.cpp 
 
	IteratedHash<word32> 
	IteratedHash<word64>	// #ifdef WORD64_AVAILABLE 
*/ 
 
template <class T> class IteratedHash : public virtual HashModule 
{ 
public: 
	IteratedHash(unsigned int blockSize, unsigned int digestSize); 
	~IteratedHash(); 
	void Update(const byte *input, unsigned int length); 
 
	typedef T HashWordType; 
 
protected: 
	void PadLastBlock(unsigned int lastBlockSize, byte padFirst=0x80); 
	virtual void Init() =0; 
	virtual void HashBlock(const T *input) =0; 
 
	unsigned int blockSize; 
	word32 countLo, countHi;	// 64-bit bit count 
	SecBlock<T> data;			// Data buffer 
	SecBlock<T> digest;			// Message digest 
}; 
 
NAMESPACE_END 
 
#endif