crypto_wrappers.py 文件源码

def aes_ctr_buff(key, ctr, data, buff):
    backend = default_backend()
    cipher = Cipher(algorithms.AES(key), modes.CTR(ctr), backend=backend)
    decryptor = cipher.decryptor()
    return decryptor.update_into(data, buff) #+ decryptor.finalize()