def encryption_oracle(s):
key = generate_random_bytes(16)
s = generate_random_bytes(randint(5, 10)) + s + generate_random_bytes(
randint(5, 10))
s = padpkcs7(s, 16)
if randint(0, 1) == 0:
print('Encrypting with ECB')
cipher = AES.new(key, AES.MODE_ECB)
return cipher.encrypt(s)
else:
print('Encrypting with CBC')
iv = generate_random_bytes(16)
return cbc_encryption(s, key, iv)
def encrypt_profile_for(email):
cipher = AES.new(key, AES.MODE_ECB)
encoded_profile = padpkcs7(profile_for(email), 16)
return cipher.encrypt(encoded_profile)
def encryption_oracle(s):
cipher = AES.new(key, AES.MODE_ECB)
s = padpkcs7(s + base64.b64decode(message), 16)
return cipher.encrypt(s)
def encryptParams(userdata):
x1 = b'comment1=cooking%20MCs;userdata='
x2 = b';comment2=%20like%20a%20pound%20of%20bacon'
params = x1 + userdata.encode('ascii') + x2
return cbc.cbc_encryption(padpkcs7(params, 16), key, iv)