The TETRA system also supports powerful DMO mode and enables authentication, air interface encryption and end-to-end encryption.

能支持功能强大的移动台脱网直通（DMO）方式，可实现鉴权、空中接口加密和端对端加密；

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The KCBC or KCTR-MAC authentication mode may be combined with the CTR(counter) encryption mode to form a new full block cipher mode.

KCBC或KCTR MAC认证模式和CTR（计数器）加密模式结合可构成分组密码算法的新工作模式。

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