Symmetric algorithms are very efficient and work with a single key for both encryption and decryption calculations.

对称算法非常有效，并且可以与用于加密和解密计算的单一密钥一起使用。

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With combination of different key lengths and different hashing algorithms, IBM NAS provides encryption types as shown in Table 1.

通过组合使用不同的密钥长度和散列算法，IBM NAS提供表1所示的加密类型。

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Key - a key is cryptographic data which is usually derived from a user's password using specific encryption algorithms.

密钥—密钥就一些密码数据，通常使用特定加密算法从用户的密码中获得。

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