newcrackme.c

#include<stdio.h>

int main()
{
    char cond1 = 1;
    char cond2 = 1;
    char cond3 = 1;
    char pass[21];
    scanf("%20s", pass);
    // condition 1
    char tab[] = {103, 40, 58, 113, 1, 112, 39, 40, 6, 62};
    for (int i = 0; i < 10; i++)
        if ((char)(pass[2*i] ^ pass[2*i+1]) != tab[i])
            cond1 = 0;
    //condition 2
    char buff[] = "mdouhqgghighmhtjouir";
    for (int i = 0; i < 20; i++)
        if ((pass[i] >> 4) + (pass[i] & 0xf) + 97 != buff[i])
            cond2 = 0;
    //condition 3
    char checksum[] = "UQWTX";
    for (int i = 0; i < 5; i++)
        if ((pass[i] >> 4) + (pass[5+i] >> 4) + (pass[10+i] >> 4) + (pass[15+i] >> 4) + 65 != checksum[i])
            cond3 = 0;
    if (cond1 & cond2 & cond3 == 1)
        printf("YOU WIN!!! Invite your geek friends to the facebook group CyberSecurityDZ\n(If you are able to solve this, then you must have geek friends)\n");
    else
        printf("Try Harder!!!\n");
    return 0;
}