In California, most policies are sold by a state-run insurance pool, the California Earthquake Authority, although a few private companies also sell earthquake coverage.
To get an official digital certificate signed by a recognized certificate authority, you need to generate a public-private key pair and use the public key to create a certificate request.
要获得由权威认证机构签名的官方数字证书，需要生成一个公开-私有密匙对并使用公开密匙生成证书请求。
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To get those keys, the device's manufacturer needs the help of the central authority, because only the central authority can do keygen to determine the device's private key.