79 lines
2.2 KiB
C
79 lines
2.2 KiB
C
#include <stdio.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <time.h>
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const uint16_t NBR_PASSWORDS_REQUESTED = 16;
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const char list[] = {
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'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
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'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
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'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
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'/', '+'
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};
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char give_char(uint8_t index){
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if (index >= sizeof(list)) {
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printf("Error: Index out of bounds, max %zu\n", sizeof(list));
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exit(1);
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}
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return list[index];
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}
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bool check_pw(char *pw) {
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int64_t xor = pw[0]^pw[1]^pw[2]^pw[3]^pw[4]^pw[5]^pw[6]^pw[7]^pw[8]^pw[9]^pw[10]^pw[11];
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int64_t sum = pw[0]+pw[1]+pw[2]+pw[3]+pw[4]+pw[5]+pw[6]+pw[7]+pw[8]+pw[9]+pw[10]+pw[11];
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int64_t iVar1 = (int64_t)(uint8_t)(xor^0xD6);
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int64_t iVar2 = (int64_t)(uint8_t)(sum-0x3a);
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int64_t iVar8 = iVar1 + iVar2 * 0x73;
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int64_t diff = (char)(
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(char)iVar8 - (char)( (int64_t)(iVar8 * 0x7f81) >> 0x17 )
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);
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// printf("XOR: %d\tSUM: %d\n", xor, sum);
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// printf("iVar1: %d\tiVar2: %d\tiVar8: %d\n", iVar1, iVar2, iVar8);
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// printf("Diff is: %d\n", diff);
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if (diff == -0x4b) { // -75 | -'K' | 18'446'744'073'709'551'541
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return true;
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} else {
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return false;
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}
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}
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int main(int argc, char *argv[]) {
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srand(time(NULL));
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char password[13];
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const uint8_t max_char = sizeof(list);
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password[0] = 'r';
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password[1] = 'e';
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password[2] = 'm';
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password[3] = 'i';
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password[4] = 'p';
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password[5] = 'a';
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password[6] = 's';
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password[7] = 's';
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password[8] = 'w';
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password[12] = '\0';
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for(uint16_t n = 0; n < NBR_PASSWORDS_REQUESTED; n++) {
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do{
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password[9] = give_char(rand() % max_char);
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password[10] = give_char(rand() % max_char);
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password[11] = give_char(rand() % max_char);
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}while(!check_pw(password));
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if (check_pw(password)) {
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printf("%s\n", password);
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} else {
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printf("Fuck\n");
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}
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}
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return 0;
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}
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