2737be4e589427c2

// import tls "github.com/refraction-networking/utls"
tcpConn, err := net.Dial("tcp", "tlsfingerprint.io:443")
if err != nil {
	fmt.Printf("net.Dial() failed: %+v\n", err)
	return
}

config := tls.Config{ServerName: "tlsfingerprint.io"}
// This fingerprint includes feature(s), not fully supported by TLS.
// uTLS client with this fingerprint will only be able to to talk to servers,
// that also do not support those features. 
tlsConn := tls.UClient(tcpConn, &tlsConfig, tls.HelloCustom)
clientHelloSpec := tls.ClientHelloSpec {
	CipherSuites: []uint16{
		tls.TLS_RSA_WITH_AES_256_GCM_SHA384,
		0xc0a1,
		0xc09d,
		tls.DISABLED_TLS_RSA_WITH_AES_256_CBC_SHA256,
		tls.TLS_RSA_WITH_AES_256_CBC_SHA,
		0x00c0,
		0x0084,
		0xc03d,
		0xc051,
		0xc07b,
		0xff00,
		0xff01,
		0xff02,
		0xff03,
		0xc0a0,
		0xc09c,
		tls.TLS_RSA_WITH_AES_128_GCM_SHA256,
		tls.TLS_RSA_WITH_AES_128_CBC_SHA256,
		tls.TLS_RSA_WITH_AES_128_CBC_SHA,
		0x00ba,
		0x0096,
		0x0041,
		0x0007,
		0xc03c,
		0xc050,
		0xc07a,
		tls.TLS_RSA_WITH_RC4_128_SHA,
		0x0004,
		tls.TLS_RSA_WITH_3DES_EDE_CBC_SHA,
		0xfeff,
		0xffe0,
		0x0062,
		0x0009,
		0x0061,
		0xfefe,
		0xffe1,
		0x0064,
		0x0060,
		0x0008,
		0x0006,
		0x0003,
		0x003b,
		0x0002,
		0x0001,
		0x00ff,
	},
	CompressionMethods: []byte{
		0x00, // compressionNone
	},
	Extensions: []tls.TLSExtension{
code generation error: short curves	},
}
tlsConn.ApplyPreset(&clientHelloSpec)
        
n, err = tlsConn.Write([]byte("Hello, World!"))
// or tlsConn.Handshake() for better control