def encryption_oracle(s,key="",prefix=""): import c10 import base64 from Crypto.Cipher import AES secret = "Um9sbGluJyBpbiBteSA1LjAKV2l0aCBteSByYWctdG9wIGRvd24gc28gbXkg\n\ aGFpciBjYW4gYmxvdwpUaGUgZ2lybGllcyBvbiBzdGFuZGJ5IHdhdmluZyBq\n\ dXN0IHRvIHNheSBoaQpEaWQgeW91IHN0b3A/IE5vLCBJIGp1c3QgZHJvdmUg\n\ YnkK" s = prefix + s + base64.b64decode(secret) return AES.new(key,AES.MODE_ECB).encrypt(c10.pkcs7pad(s))
def encryption_oracle(s):
import c10
import random
from Crypto.Cipher import AES
key = open("/dev/urandom").read(16)
prefix = open("/dev/urandom").read(random.randint(5, 10))
suffix = open("/dev/urandom").read(random.randint(5, 10))
s = str(prefix) + str(s) + str(suffix)
if random.randint(0, 1) == 1:
return c10.cbcencrypt(s, open("/dev/urandom").read(16), key)
else:
return AES.new(key, AES.MODE_ECB).encrypt(c10.pkcs7pad(s))
def encrypt(s,key): import c10 from Crypto.Cipher import AES return AES.new(key,AES.MODE_ECB).encrypt(c10.pkcs7pad(s))
