所述KDC向所述ME提供密钥加密密钥（KEK）形式的单点登录证书。

The KDC supplies the ME with single-sign-on credentials in the form of a Key Encryption Key (KEK).

youdao

步骤 4：利用一个数据加密密钥、一个密钥加密密钥、与这两个密钥相关联的算法、以及将来包含在输出信息中的密钥信息，根据它们来创建一个 Encryptor 对象。

Step 4: Create an Encryptor object with a data encryption key, a key encryption key, their associated algorithms, and key information to be included in the output.

youdao

对称密钥(公钥)算法用于交换在对称算法中使用的加密密钥，以及用于数字签名。

An asymmetric key (public key) algorithm is used for the exchange of the secret keys to be used in symmetric algorithm and for digital signatures.

youdao

If you have some plain text, some message that you want to send, well, you can encrypt it or you can scramble it using a key, a secret key, which might be a physical machine like the Enigma 13 or it might be a number like 13.

如果你有没有加密的文本，你想要寄送的一些消息,你就可以加密它,或者你可以用一个密钥使其变得混乱，那就像一个英格玛的物理装置,或者他就是一个数字。

哈佛公开课 - 计算机科学课程节选

The number that you choose to rotate your letters by is what we call in cryptography, a key.

你选择的旋转字母的数量,就是所谓的加密学，一个密钥。

哈佛公开课 - 计算机科学课程节选

It's a secret number so that if Julius Caesar scrambled his message with the key 13, well, then the recipient had better know what that number is or realistically, -- and this is why it's kind of hard to buy -- into some of these age old algorithms, -- what would an alternative approach be to figuring out Julius Caesar's messages to his generals if he didn't know that secret number was 13?

它是一个机密的数字，以至于,如果凯撒大帝使用密钥13加密了它的消息，然后接收者最好知道那个数字是什么,实际上--这就是为什么很难,破解这些古老的算法-,有什么变换方法使凯撒大帝的将军,可以解密凯撒大帝的消息，如果他不知道,那个机密数字是13呢？

哈佛公开课 - 计算机科学课程节选