Added padding oracle attack vector

crack.py

@@ -0,0 +1,42 @@
+import requests
+
+from imp.constants import PRINTABLE
+from imp.attacks.paddingoracle import paddingoracle
+
+NIBBLESET = [n.to_bytes() for n in range(256)]
+
+HOST = 'https://aes.cryptohack.org'
+ENDPOINT = '/ecb_oracle/encrypt/{0}/'
+URI = HOST + ENDPOINT
+
+# CHARSET = [c.encode() for c in string.printable]
+CHARSET = NIBBLESET # OVERRIDE
+
+FLAG_LEN = 26  # flag length, calculated by hand
+SPACER = b'\x0f' # arbitrary spacing character
+
+BLOCK_BYTES = 16
+BLOCK_NIBBLES = 32 # measured in nibbles
+
+
+def mkreq(hextext: str) -> dict[str, str]:
+    resp = requests.get(URI.format(hextext))
+    if resp.status_code != 200:
+        raise Exception(f'[!] resp failed! {resp} : {resp.text}')
+    return resp.json()
+
+def encrypt(b: bytes) -> bytes:
+    resp = mkreq(b.hex())
+    return bytes.fromhex(resp['ciphertext'])
+
+def main() -> None:
+    paddingoracle(encrypt, NIBBLESET, 64, batch_size=16, debug=True)
+
+               
+
+if __name__ == '__main__':
+    try:
+        main()
+    except (KeyboardInterrupt, EOFError):
+        print('\n[!] Interrupt')
+