What should I do if I fail to get the public key of the cat community APP?

Check whether the state is normal through the driver. If the driver is installed and the certificate information can be read, please select the correct certificate before entering the password.

Unable to obtain the public key means that the data sent in the network is likely to be received by hackers, leading to leaks, so the sender of sensitive data should encrypt and transmit according to the agreed method (key), and the receiver should decrypt according to the agreed method (key), so as to obtain the correct data. Obtaining the encrypted public key failed, and the key package was lost with high probability, resulting in incomplete key data, and the receiver would think that the key was invalid.

The public key and the private key are a pair of keys (that is, a public key and a private key) obtained by an algorithm, and one of them is made public and called the public key. The other is kept by itself and is called the private key. The key pair obtained by this algorithm can be guaranteed to be unique in the world.