Client returns a TLS configuration meant to be used by a client.

ClientDefault returns a secure-enough TLS configuration for the client TLS configuration.

IsErrEncryptedKey returns true if the 'err' is an error of incorrect password when trying to decrypt a TLS private key.

Server returns a TLS configuration meant to be used by a server.

ServerDefault returns a secure-enough TLS configuration for the server TLS configuration.

SystemCertPool returns a copy of the system cert pool, returns an error if failed to load or empty pool on windows.

DefaultServerAcceptedCiphers should be uses by code which already has a crypto/tls options struct but wants to use a commonly accepted set of TLS cipher suites, with known weak algorithms removed.

Options represents the information needed to create client and server TLS configurations.