text: #ifndef HASHFUNCTIONS_H_
  #define HASHFUNCTIONS_H_
  
  #include<openssl/evp.h>
  
  class HashFunc{
  public:
  	HashFunc();
  	~HashFunc();
  	static char* sha1(const char* key);
  	static char* md5(const char* key);
  };
  
  #endif //HASHFUNCTIONS_H_
  