Listing 5 shows a new key type being declared in the kernel module.

清单5给出在内核模块中声明的一个新的密钥类型。

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Having created a new key type, we next want to try using the kernel module.

创建了新的密钥类型之后，我们来试用一下这个内核模块。

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Any other key type must be already registered with the kernel via a kernel service.

其他任何密钥类型必须已经通过内核服务向内核注册，然后才能使用。

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"Other than some type of key-recoverable system, there is currently no viable technical solution to this problem for law enforcement, " he said.

BBC: Security and law enforcement: the government view

Matias says it spent more than two years working on a new type of key switch -- a modified ALPS switch it's dubbed Quiet Click -- and it has indeed come up with something unique.

ENGADGET: Matias Quiet Pro review: a mechanical keyboard with less clickety-clack

The GC-PX100 was designed for fast, easy handling, with an SLR-type body and all key controls and functions conveniently placed for intuitive operation.

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