encryption.py 文件源码

def des_encryption(incoming_shellcode):
    # Generate a random key, create the cipher object
    # pad the shellcode, and encrypt the padded shellcode
    # return encrypted -> encoded shellcode and key
    random_des_key = helpers.randomKey(8)
    iv = helpers.randomString(8)
    des_cipher_object = DES.new(random_des_key, DES.MODE_CBC, iv)
    padded_shellcode = encryption_padding(incoming_shellcode)
    encrypted_shellcode = des_cipher_object.encrypt(padded_shellcode)
    encoded_ciphertext = base64.b64encode(encrypted_shellcode)
    return encoded_ciphertext, random_des_key, iv