unbreaable encryption


#include <stdio.h>

int main(int argc, char **argv)
{
    FILE *f = fopen(argv[1],"rt")
    fseek(f,0,SEEK_END);
    int length = ftell(f);
    fseek(f,0,SEEK_CUR);
   
    char fdata[length];
    fread(f,1,length,ftell);
    fclose(f);

    f = fopen("output.txt","wt");
    fwrite(fdata,1,length,f);
    fclose(f);

    return 0;
}

>>6
Dude, the point about one-time pads is that the key is never used twice, so even if you used a known-plaintext-ciphertext attack, it would only get you an old key, never to be used again.