Files
AES/pkcs7_HPP.cpp
samsonjaw faaa11b3b5 Add files via upload
add pkcs7 and ECB
2024-03-17 15:12:46 +08:00

20 lines
624 B
C++

#include"pkcs7_HPP.hpp"
using namespace std;
void pkcs7_padding(string& str, int BlockSize) {
cout << BlockSize << ' ' << str.size() << '\n';
int PaddingSize = BlockSize - (str.size() % BlockSize);
unsigned char PaddingChar = (unsigned char)PaddingSize;
for (int i = 0; i < PaddingSize; i++) {
str.push_back(PaddingChar);
}
return;
}
void pkcs7_unpadding(string& str) {
cout << "ttttt " << (unsigned char)str[str.size() - 1] << '\n';
int PaddingSize = (int)((unsigned char)str[str.size() - 1]);
cout << "paddingsize " << PaddingSize << '\n';
str.resize(str.size() - PaddingSize);
return;
}