require(tls) { "no cipher suites for cleartext connections" }
        val strings = cipherSuites.map { it.javaName }.toTypedArray()
        return cipherSuites(*strings)
      }

    fun cipherSuites(vararg cipherSuites: String) =
      apply {
        require(tls) { "no cipher suites for cleartext connections" }
        require(cipherSuites.isNotEmpty()) { "At least one cipher suite is required" }

    socket.enabledCipherSuites = arrayOf("SSL_A", "SSL_B", "SSL_C")
    val connectionSpec =
      ConnectionSpec
        .Builder(true)
        .tlsVersions(TlsVersion.TLS_1_0)
        .cipherSuites("TLS_A", "TLS_C", "TLS_E")
        .build()
    applyConnectionSpec(connectionSpec, socket, false)
    assertArrayEquals(arrayOf("TLS_A", "TLS_C"), socket.enabledCipherSuites)
  }

  @Test

            return
          }

          // https://timothybasanov.com/2016/05/26/java-pre-master-secret.html
          // https://security.stackexchange.com/questions/35639/decrypting-tls-in-wireshark-when-using-dhe-rsa-ciphersuites
          // https://stackoverflow.com/questions/36240279/how-do-i-extract-the-pre-master-secret-using-an-openssl-based-client

          // TLSv1.2 Events
          // Produced ClientHello handshake message

```java
ConnectionSpec spec = new ConnectionSpec.Builder(ConnectionSpec.MODERN_TLS)
    .tlsVersions(TlsVersion.TLS_1_2)
    .cipherSuites(
          CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
          CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
          CipherSuite.TLS_DHE_RSA_WITH_AES_128_GCM_SHA256)
    .build();

    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(

	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(

Go 1.23 changed the default TLS cipher suites used by clients and servers when
not explicitly configured, removing 3DES cipher suites. The default can be reverted
using the [`tls3des` setting](/pkg/crypto/tls/#Config.CipherSuites).
This setting will be removed in Go 1.27.

Go 1.23 changed the behavior of [`tls.X509KeyPair`](/pkg/crypto/tls#X509KeyPair)
and [`tls.LoadX509KeyPair`](/pkg/crypto/tls#LoadX509KeyPair) to populate the