They should also consider two-part authentication, which can combine passwords with a security key with a changing code.

他们还应该考虑双重认证，用不断变化的代码将口令与安全键码结合起来。

youdao

The new algorithm can use a variable length key, and its output is 256-bit message authentication code(MAC).

新算法具有一个可变长度密钥，输出2 5 6位的报文鉴别码（MAC）。

youdao

The new algorithm can use a variable length key, and its output is 256-bit message authentication code(MAC).

新算法具有一个可变长度密钥，输出2 5 6位的报文鉴别码（MAC）。

youdao