cipher block chaining

例句：

1. 1. The company uses a cipher block chaining system to secure its data.
   该公司使用一种密码块链式加密系统来保护其数据。
2. 2. In the new encryption method, the key is stored in a cipher block chaining format.
   在新加密方法中，密钥以密文块链式格式存储。
3. 3. The cipher block chaining technique has proven to be highly effective against modern hacking attempts.
   密文块链式技术已证明在对抗现代黑客攻击方面非常有效。