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- #include "pch.h"
- #include <iostream>
- #include <cstdlib>
- #include <ctime>
- #include <vector>
- #include <string>
- using namespace std;
- class AES
- {
- uint8_t S_BOX[256] =
- {
- 0x63, 0x7C, 0x77, 0x7B, 0xF2, 0x6B, 0x6F, 0xC5, 0x30, 0x01, 0x67, 0x2B, 0xFE, 0xD7, 0xAB, 0x76,
- 0xCA, 0x82, 0xC9, 0x7D, 0xFA, 0x59, 0x47, 0xF0, 0xAD, 0xD4, 0xA2, 0xAF, 0x9C, 0xA4, 0x72, 0xC0,
- 0xB7, 0xFD, 0x93, 0x26, 0x36, 0x3F, 0xF7, 0xCC, 0x34, 0xA5, 0xE5, 0xF1, 0x71, 0xD8, 0x31, 0x15,
- 0x04, 0xC7, 0x23, 0xC3, 0x18, 0x96, 0x05, 0x9A, 0x07, 0x12, 0x80, 0xE2, 0xEB, 0x27, 0xB2, 0x75,
- 0x09, 0x83, 0x2C, 0x1A, 0x1B, 0x6E, 0x5A, 0xA0, 0x52, 0x3B, 0xD6, 0xB3, 0x29, 0xE3, 0x2F, 0x84,
- 0x53, 0xD1, 0x00, 0xED, 0x20, 0xFC, 0xB1, 0x5B, 0x6A, 0xCB, 0xBE, 0x39, 0x4A, 0x4C, 0x58, 0xCF,
- 0xD0, 0xEF, 0xAA, 0xFB, 0x43, 0x4D, 0x33, 0x85, 0x45, 0xF9, 0x02, 0x7F, 0x50, 0x3C, 0x9F, 0xA8,
- 0x51, 0xA3, 0x40, 0x8F, 0x92, 0x9D, 0x38, 0xF5, 0xBC, 0xB6, 0xDA, 0x21, 0x10, 0xFF, 0xF3, 0xD2,
- 0xCD, 0x0C, 0x13, 0xEC, 0x5F, 0x97, 0x44, 0x17, 0xC4, 0xA7, 0x7E, 0x3D, 0x64, 0x5D, 0x19, 0x73,
- 0x60, 0x81, 0x4F, 0xDC, 0x22, 0x2A, 0x90, 0x88, 0x46, 0xEE, 0xB8, 0x14, 0xDE, 0x5E, 0x0B, 0xDB,
- 0xE0, 0x32, 0x3A, 0x0A, 0x49, 0x06, 0x24, 0x5C, 0xC2, 0xD3, 0xAC, 0x62, 0x91, 0x95, 0xE4, 0x79,
- 0xE7, 0xC8, 0x37, 0x6D, 0x8D, 0xD5, 0x4E, 0xA9, 0x6C, 0x56, 0xF4, 0xEA, 0x65, 0x7A, 0xAE, 0x08,
- 0xBA, 0x78, 0x25, 0x2E, 0x1C, 0xA6, 0xB4, 0xC6, 0xE8, 0xDD, 0x74, 0x1F, 0x4B, 0xBD, 0x8B, 0x8A,
- 0x70, 0x3E, 0xB5, 0x66, 0x48, 0x03, 0xF6, 0x0E, 0x61, 0x35, 0x57, 0xB9, 0x86, 0xC1, 0x1D, 0x9E,
- 0xE1, 0xF8, 0x98, 0x11, 0x69, 0xD9, 0x8E, 0x94, 0x9B, 0x1E, 0x87, 0xE9, 0xCE, 0x55, 0x28, 0xDF,
- 0x8C, 0xA1, 0x89, 0x0D, 0xBF, 0xE6, 0x42, 0x68, 0x41, 0x99, 0x2D, 0x0F, 0xB0, 0x54, 0xBB, 0x16
- };
- uint8_t key[16];
- uint8_t extkey[176];
- int matrix[4][4];
- void rotate_vect(uint8_t vect[]);
- void sub_sbox(uint8_t vect[]);
- void rcon(uint8_t vect[], int number);
- void xor_append(uint8_t* block, uint8_t vect[]);
- void sub_sbox2(uint8_t vect[4][4]);
- vector <int> ask;
- public:
- void generate_key128(uint8_t key[], uint8_t extkey[]);
- void ciphertext(const uint8_t text[4][4], const uint8_t key[]);
- void shift_rows(uint8_t matrix[4][4]);
- vector< vector< vector<char> > > stringtomatrix(string);
- AES();
- };
- AES::AES()
- {
- for (int i = 0; i < 16; i++)
- {
- key[i] = (std::rand()) + 256;
- //std::cout << (int)key[i]<<std::endl;
- }
- for (int i = 0; i < 176; i++)
- {
- if (i < 16)
- std::cout << (int)extkey[i] << " --- --- " << (int)key[i] << std::endl;
- else
- std::cout << (int)extkey[i] << std::endl;
- }
- std::cout << "!@#@$&*^%$##@#%%&^%$%$#@$#$^*^&^%$!#@$%$^&%^%%@$!$@%#" << std::endl;
- generate_key128(key, extkey);
- for (int i = 0; i < 176; i++)
- {
- if (i < 16)
- std::cout << (int)extkey[i] << " --- --- " << (int)key[i] << std::endl;
- else
- std::cout << (int)extkey[i] << std::endl;
- }
- }
- vector< vector< vector<char> > > stringtomatrix(string inputdata) {
- vector< vector<char> > tab(4, vector <char>(4)); //declaration 4x4 matrix (4bytes x 4bytes)
- vector< vector< vector<char> > >tab4;
- int counter = 0;
- int k = inputdata.length(); //the length of the input data
- int division = k / 16; //dividing into 16, because there are 16 char in each matrix
- int rest = k % 16; //the rest from dividing into 16
- for (int t = 0; t < division; t++) {
- for (int i = 0; i < 4; i++) {
- for (int j = 0; j < 4; j++) {
- tab[i][j] = inputdata[counter]; //giving input data into the matrix
- counter++;
- }
- }
- tab4.push_back(tab);
- }
- int o = k - rest + 1;
- for (int i = 0; i < 4; i++) {
- for (int j = 0; j < 4; j++) {
- tab[i][j] = inputdata[o];
- o++;
- }
- }
- tab4.push_back(tab);
- return tab4;
- }
- void AES::rotate_vect(uint8_t vect[])
- {
- uint8_t temp = vect[0];
- memmove(vect, vect + 1, 3);
- memcpy(vect + 3, &temp, 1);
- }
- void AES::sub_sbox(uint8_t vect[])
- {
- for (int i = 0; i < 4; i++)
- {
- vect[i] = S_BOX[vect[i]];
- }
- }
- void AES::rcon(uint8_t vect[], int number)
- {
- vect[0] ^= (int)pow(2, number);
- }
- void AES::xor_append(uint8_t* block, uint8_t vect[])
- {
- uint8_t temp2[4];
- memcpy(&temp2, block, 4);
- for (int i = 0; i < 4; i++)
- {
- vect[i] ^= temp2[i];
- }
- memcpy(block + 16, vect, 4);
- }
- void AES::generate_key128(uint8_t key[], uint8_t extkey[])
- {
- memcpy(extkey, key, 16);
- uint8_t state = 16;
- uint8_t temp[4];
- for (int i = 1; state < 176; i++)
- {
- memcpy(temp, extkey + (state - 4), 4);
- rotate_vect(temp);
- sub_sbox(temp);
- rcon(temp, i - 1);
- xor_append(extkey + state - 16, temp);
- state += 4;
- for (int s = 0; s < 3; s++)
- {
- memcpy(temp, extkey + (state - 4), 4);
- xor_append(extkey + state - 16, temp);
- state += 4;
- }
- }
- }
- void AES::sub_sbox2(uint8_t vect[4][4])
- {
- for (int i = 0; i < 4; i++)
- {
- sub_sbox(vect[i]);
- }
- }
- void AES::shift_rows(uint8_t matrix[4][4])
- {
- }
- void AES::ciphertext(const uint8_t text[4][4], const uint8_t key[])
- {
- uint8_t temp[4][4];
- uint8_t ciphered[4][4];
- memcpy(ciphered, text, 16);
- memcpy(temp, key, 16);
- // Initial round
- for (int i = 0; i < 4; i++)
- {
- for (int j = 0; j < 4; j++)
- {
- ciphered[i][j] ^= temp[i][j];
- }
- }
- // 9 repeats
- for (int i = 0; i < 9; i++)
- {
- sub_sbox2(ciphered);
- shift_rows(ciphered);
- }
- // End round
- sub_sbox2(ciphered);
- shift_rows(ciphered);
- }
- int main()
- {
- srand(time(NULL));
- AES test;
- }
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