import assertk.assertions.isEqualTo
import assertk.assertions.isNull
import assertk.assertions.startsWith
import java.io.IOException
import java.net.SocketException
import java.security.GeneralSecurityException
import java.security.SecureRandom
import java.security.cert.X509Certificate
import java.util.Arrays
import javax.net.ssl.KeyManager
import javax.net.ssl.SSLContext
import javax.net.ssl.SSLException