platform.newSslSocketFactory(platform.platformTrustManager()).defaultCipherSuites
    val cipherSuites =
      ConnectionSpec.RESTRICTED_TLS.effectiveCipherSuites(platformDefaultCipherSuites)

    if (cipherSuites.contains(TLS_CHACHA20_POLY1305_SHA256.javaName)) {
      assertThat(cipherSuites).containsExactly(
        TLS_AES_128_GCM_SHA256.javaName,
        TLS_AES_256_GCM_SHA384.javaName,

	if dialContext == nil {
		dialContext = DialContextWithLookupHost(s.LookupHost, NewInternodeDialContext(s.DialTimeout, s.TCPOptions))
	}

	tlsClientConfig := tls.Config{
		RootCAs:            s.RootCAs,
		CipherSuites:       s.CipherSuites,
		CurvePreferences:   s.CurvePreferences,
		ClientSessionCache: tls.NewLRUClientSessionCache(tlsClientSessionCacheSize),
	}

	// For more details about various values used here refer

		tlsConfig.ClientAuth = tls.RequestClientCert
	}

	if secureCiphers := env.Get(api.EnvAPISecureCiphers, config.EnableOn) == config.EnableOn; secureCiphers {
		tlsConfig.CipherSuites = crypto.TLSCiphers()
	} else {
		tlsConfig.CipherSuites = crypto.TLSCiphersBackwardCompatible()
	}
	tlsConfig.CurvePreferences = crypto.TLSCurveIDs()
	return tlsConfig
}

/////////// Types and functions for OpenID IAM testing

    connectionSpec = ConnectionSpec.COMPATIBLE_TLS
    connectionSpec = ConnectionSpec.CLEARTEXT
    val tlsVersions: List<TlsVersion>? = connectionSpec.tlsVersions
    val cipherSuites: List<CipherSuite>? = connectionSpec.cipherSuites
    val supportsTlsExtensions: Boolean = connectionSpec.supportsTlsExtensions
    val compatible: Boolean =
      connectionSpec.isCompatible(

		TLS: &tls.Config{
			ServerName:         host,
			MinVersion:         tls.VersionTLS12,
			NextProtos:         []string{"h2", "http/1.1"},
			ClientSessionCache: tls.NewLRUClientSessionCache(100),
			CipherSuites:       crypto.TLSCiphersBackwardCompatible(), // Contains RSA key exchange
			RootCAs:            rootCAs,
		},
	}

	// Parse explicitly set enable=on/off flag.
	isEnableFlagExplicitlySet := false

	public final fun allEnabledTlsVersions ()Lokhttp3/ConnectionSpec$Builder;
	public final fun build ()Lokhttp3/ConnectionSpec;
	public final fun cipherSuites ([Ljava/lang/String;)Lokhttp3/ConnectionSpec$Builder;
	public final fun cipherSuites ([Lokhttp3/CipherSuite;)Lokhttp3/ConnectionSpec$Builder;
	public final fun supportsTlsExtensions (Z)Lokhttp3/ConnectionSpec$Builder;

	public final fun allEnabledTlsVersions ()Lokhttp3/ConnectionSpec$Builder;
	public final fun build ()Lokhttp3/ConnectionSpec;
	public final fun cipherSuites ([Ljava/lang/String;)Lokhttp3/ConnectionSpec$Builder;
	public final fun cipherSuites ([Lokhttp3/CipherSuite;)Lokhttp3/ConnectionSpec$Builder;
	public final fun supportsTlsExtensions (Z)Lokhttp3/ConnectionSpec$Builder;

          clientCertificates.trustManager,
        ).connectionSpecs(
          listOf(
            ConnectionSpec
              .Builder(ConnectionSpec.MODERN_TLS)
              .cipherSuites(cipherSuite)
              .build(),
          ),
        ).build()
    val serverCertificates =
      HandshakeCertificates
        .Builder()
        .build()
    server.useHttps(