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StringTrans.cpp
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StringTrans.cpp
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#include "StringTrans.h"
#include <string>
#include <vector>
#include "BigInt.h"
#include "RSA.h"
#include "utils.h"
using namespace std;
StringTrans::StringTrans(const string& a, int b) {
this->BitLen = b;
this->split(a);
}
void StringTrans::split(const string& msg) {
int n = 0,i = 0,j = 0;
int StrLen = BitLen / 8;
(*this).clear();
const char* msg_c = msg.c_str();
do
{
char seg_c[255];
for (i = n * StrLen,j = 0;i < msg.length() && i < (n + 1) * StrLen;i++,j++)
seg_c[j] = msg_c[i];
seg_c[j] = '\0';
string segment(seg_c);
vector<BigInt>::push_back(BigInt(segment, 10));
n++;
}
while (n * StrLen < msg.length());
}
string StringTrans::toHexString() {
int len = this->size();
string res, tmp;
for (int i = 0; i < len; i++) {
tmp = (*this)[i].ToHexString();
res = res + tmp;
}
return res;
}
string StringTrans::toString() {
int len = this->size();
string res, tmp;
for (int i = 0; i < len; i++) {
tmp = (*this)[i].ToString();
res = res + tmp;
}
return res;
}
void StringTrans::push_back(const string& str) {
this->push_back(str);
}
void StringTrans::push_back(const BigInt& bigInt) {
vector<BigInt>::push_back(bigInt);
}
StringTrans& StringTrans::operator+= (const string& str) {
this->push_back(str);
return *this;
}
StringTrans& StringTrans::operator+= (const BigInt& bigInt) {
vector<BigInt>::push_back(bigInt);
return *this;
}
StringTrans& StringTrans::operator+= (const StringTrans& st) {
for (StringTrans::const_iterator itr = st.begin(); itr != st.end(); itr ++)
vector<BigInt>::push_back(*itr);
return *this;
}