www.pudn.com > sanpack_rsa_vs2003sln_src.rar > rsa_san.h

// This is a slow but easy RSA encryption class 
// By sanicle,2005.12  
// 3mn@3mn.net 
 
#include "vlong.h" 
 
#define PRIME_COUNT 1000000 
 
class RSA_san 
{ 
  public: 
	char r1[70]; 
	char r2[70]; 
	vlong n,e,d,p,q; 
	vlong result; 
	vlong prime_table[PRIME_COUNT]; 
	int prime_table_use; 
	int prime_p_index; 
	int prime_q_index; 
 
	RSA_san(); 
	~RSA_san(); 
	vlong encrypt( const vlong& x );  
	vlong decrypt( const vlong& y ); 
	int RSA_san_en(char * s,unsigned n); 
	int RSA_san_en_byte(char b); 
	int RSA_san_dn(char * s,unsigned n); 
	int RSA_san_dn_hexstring(char * s); 
	int RSA_san_en_hexstring(char * s); 
	char* hexstring2string(char * h); 
 
	char* string2hexstring(char * s);//,unsigned len) 
	char* vlong2hexstring( const vlong& v ); 
	//unsigned* vlong2ints( const vlong& v ); 
	char* vlong2shortints( const vlong& v ); 
	 
	int set_e(char * e); 
	int force_e(char * r,unsigned len); 
	int force_d(char * r,unsigned len); 
	int force_n(char * r,unsigned len); 
	int update_pq(char * ra,char * rb); 
	 
 
  private: 
 
    char s[255]; 
	unsigned u[127]; 
	void find_prime(); 
	void random_e(); 
	void calculate_d(); 
};