encryptor.h

C++ web POSIX framewark

#ifndef CPPCMS_ENCRYPTOR_H
#define CPPCMS_ENCRYPTOR_H

#include <vector>
#include <string>

namespace cppcms {

class encryptor {
	unsigned seed;
protected:
	unsigned rand(unsigned );
	std::vector<unsigned char> key;
	std::string base64_enc(std::vector<unsigned char> const &data);
	void base64_dec(std::string const &,std::vector<unsigned char> &data);
	struct info {
		int64_t timeout;
		uint16_t size;
		char salt[6];
	};
	void salt(char *s);
public:
	virtual std::string encrypt(std::string const &plain,time_t timeout) = 0;
	virtual bool decrypt(std::string const &cipher,std::string &plain,time_t *timeout=NULL) = 0;
	encryptor(std::string key);
	virtual ~encryptor();
};

}

#endif