misc/based

misc/based/solve.py

@@ -0,0 +1,40 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i python3 -p "python3.withPackages (ppkgs: with ppkgs; [ pwntools ])"
+
+from pwn import *
+
+ADDR, PORT, *_ = "fickle-tempest.picoctf.net 61388".split()
+
+def recv_question(r: remote) -> list[str]:
+    r.recvuntil(b'the')
+    xs = r.recvuntil(b'as a word.').decode().removesuffix('as a word.').strip().split(' ')
+    return xs
+
+def send_answer(r: remote, answer: str):
+    r.recvuntil(b'Input:\n')
+    r.sendline(answer.encode())
+
+def main():
+    r = remote(ADDR, PORT)
+
+    binary = recv_question(r)
+    answer = ''.join(chr(int(c, 2)) for c in binary)
+    print(f"{binary} -> {answer}")
+    send_answer(r, answer)
+
+    octals = recv_question(r)
+    answer = ''.join(chr(int(c[1:], 8)) for c in octals)
+    print(f"{octals} -> {answer}")
+    send_answer(r, answer)
+
+    hx = recv_question(r)[0]
+    hx_chunks = [hx[i:i+2] for i in range(0,len(hx),2)]
+    answer = ''.join(chr(int(c, 16)) for c in hx_chunks)
+    print(f"{hx} -> {answer}")
+    send_answer(r, answer)
+
+    print(r.recvall().decode())
+    r.close()
+
+if __name__ == "__main__":
+    main()