I need to make a key for this crackme for my homework. I just want to play video games, can you make a valid key for me? You can submit it here as the flag.
[easycrack](https://github.com/Nightxade/ctf-writeups/blob/master/assets/CTFs/Cyber-Cooperative-CTF-2023/rev/easycrack)  
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We're given an ELF binary to reverse. I used [Dogbolt](https://dogbolt.org/) to decompile. Here is the relevant Hex-Rays decompilation:  
```cint __fastcall main(int argc, const char **argv, const char **envp){  int v4; // [rsp+18h] [rbp-38h]  int i; // [rsp+1Ch] [rbp-34h]  char s[24]; // [rsp+20h] [rbp-30h] BYREF  unsigned __int64 v7; // [rsp+38h] [rbp-18h]
  v7 = __readfsqword(0x28u);  printf("Please enter a key: ");  fgets(s, 13, _bss_start);  v4 = 0;  for ( i = 0; i < strlen(s); ++i )    v4 += s[i];  if ( v4 == 1337 && strlen(s) == 12 )    printf("Nice key :) %s", s);  else    printf("Bad Key :( %s", s);  return 0;}```
So, essentially, we just need all the ASCII codes of our key's characters to add up to 1337, and the length of our key to be 12. 1337 = 11 * 111 + 116, so I used that as the ASCII codes to generate my key:  
  ooooooooooot
I ran the program with my key, and it verified its validity, so I submitted it as the flag!  