78 lines
1.7 KiB
C++
78 lines
1.7 KiB
C++
//
|
|
// Created by Eric Saturn on 2019/12/13.
|
|
//
|
|
|
|
#ifndef NET_BIGNUMBER_H
|
|
#define NET_BIGNUMBER_H
|
|
|
|
#include <memory>
|
|
#include <openssl/bn.h>
|
|
|
|
using namespace std;
|
|
|
|
namespace Net {
|
|
// 对BIGNUM进行简单封装
|
|
class BigNumber {
|
|
public:
|
|
BigNumber() : bn(BN_new(), ::BN_free) {}
|
|
|
|
BigNumber(BIGNUM *t_bn) : bn(t_bn, ::BN_free) {}
|
|
|
|
// 临时取用
|
|
BIGNUM * get() const { return bn.get(); }
|
|
|
|
BIGNUM *getCopy() const {
|
|
BIGNUM *n_bn = BN_new();
|
|
BN_copy(n_bn, bn.get());
|
|
return n_bn;
|
|
}
|
|
|
|
// 获得智能指针
|
|
shared_ptr<BIGNUM> getSharedPtr(){
|
|
return bn;
|
|
}
|
|
|
|
// 获得一份拷贝
|
|
BigNumber copy(){
|
|
BigNumber n;
|
|
BN_copy(n.get(), bn.get());
|
|
return n;
|
|
}
|
|
|
|
void copyFrom(const BIGNUM * t){
|
|
BN_copy(bn.get(), t);
|
|
}
|
|
|
|
// 向该类移交BIGNUM结构的的控制权
|
|
void set(BIGNUM *t_bn) { bn = shared_ptr<BIGNUM>(t_bn, ::BN_free); }
|
|
|
|
// 该类移交所管辖的BIGNUM结构的控制权
|
|
BIGNUM *getControl() {
|
|
if(bn != nullptr){
|
|
BIGNUM *n_bn = bn.get();
|
|
bn = nullptr;
|
|
return n_bn;
|
|
}
|
|
else return nullptr;
|
|
}
|
|
|
|
// 得到BIGNUM的Hex字符串
|
|
string getDataHex() const {
|
|
void *hex_data_str = BN_bn2hex(bn.get());
|
|
string hex_string((const char *)hex_data_str);
|
|
OPENSSL_free(hex_data_str);
|
|
return hex_string;
|
|
}
|
|
|
|
string getDataHexHash() const{
|
|
return string();
|
|
}
|
|
|
|
private:
|
|
shared_ptr<BIGNUM> bn;
|
|
};
|
|
}
|
|
|
|
|
|
#endif //NET_BIGNUMBER_H
|