if decErr != nil {
			return tls.Certificate{}, ErrTLSWrongPassword(decErr)
		}
		keyPEMBlock = pem.EncodeToMemory(&pem.Block{Type: key.Type, Bytes: decryptedKey})
	}
	cert, err := tls.X509KeyPair(certPEMBlock, keyPEMBlock)
	if err != nil {
		return tls.Certificate{}, ErrTLSUnexpectedData(nil).Msg(err.Error())
	}
	return cert, nil
}

BKEOXtmSZaPs3xEsnvJd8wrTgA0NQK7v48E+gHSXzQtaHmOLqisRXlUOu2r1gNCJ
rr3DRiUP6V/10CZ/ImeSJ72k69VuTw9vq2HzB4x6pqxF2X7JQSLUCS2wfNN13N0d
9A==
-----END CERTIFICATE-----`)

	return tls.X509KeyPair(certPEMBlock, keyPEMBlock)
}

func getNextPort() string {
	return strconv.Itoa(int(atomic.AddUint32(&serverPort, 1)))
}

func getNonLoopBackIP(t *testing.T) string {
	localIP4 := set.NewStringSet()

					}
					keyBytes = pem.EncodeToMemory(&pem.Block{Type: privateKeyPEM.Type, Bytes: keyBytes})
				}
				certificate, err := tls.X509KeyPair(certBytes, keyBytes)
				if err != nil {
					return tls.Certificate{}, fmt.Errorf("Unable to load KES client certificate as specified by the shell environment: %v", err)
				}
				return certificate, nil
			}

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
Leaf field of the returned [`tls.Certificate`](/pkg/crypto/tls#Certificate).

	//	testDataDir := filepath.Join(filepath.Dir(dir), "test-data")
	//
	//	pemFile := filepath.Join(testDataDir, "server.pem")
	//	keyFile := filepath.Join(testDataDir, "server.key")
	cer, err := tls.X509KeyPair(cert, key)
	if err != nil {
		t.Fatalf("Failed to load certificate: %v", err)
	}
	config := &tls.Config{Certificates: []tls.Certificate{cer}}

	testServer := UnstartedTestServer(t, instanceType)

pkg crypto/tls, func LoadX509KeyPair(string, string) (Certificate, error)
pkg crypto/tls, func NewListener(net.Listener, *Config) net.Listener
pkg crypto/tls, func Server(net.Conn, *Config) *Conn
pkg crypto/tls, func X509KeyPair([]uint8, []uint8) (Certificate, error)
pkg crypto/tls, method (*Config) BuildNameToCertificate()
pkg crypto/tls, method (*Conn) Close() error
pkg crypto/tls, method (*Conn) ConnectionState() ConnectionState