// 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.Client(tcpConn, &tlsConfig, utls.HelloCustom)
clientHelloSpec := tls.ClientHelloSpec {
CipherSuites: []uint16{
tls.OLD_TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,
0xcc15,
tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
tls.DISABLED_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384,
tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
0x009f,
tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,
0xccaa,
0xc0a3,
0xc09f,
0x006b,
0x0039,
0xc077,
0x00c4,
0x0088,
0xc045,
0xc04d,
0xc053,
0xc061,
0xc07d,
0xc08b,
0x16b7,
0x16b9,
tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,
tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
0x009e,
0xc0a2,
0xc09e,
0x0067,
0x0033,
0xc076,
0x00be,
0x009a,
0x0045,
0xc044,
0xc04c,
0xc052,
0xc060,
0xc07c,
0xc08a,
tls.TLS_ECDHE_RSA_WITH_RC4_128_SHA,
tls.TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,
0x0016,
0x0015,
0x0014,
0xc010,
0x00b7,
0xc099,
0x00ad,
0xccae,
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,
0x0095,
0xc03d,
0xc051,
0xc069,
0xc06f,
0xc07b,
0xc093,
0xff01,
0x00ac,
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,
0x00b6,
0x0096,
0x0041,
0xc098,
0x0007,
0x0094,
0xc03c,
0xc050,
0xc068,
0xc06e,
0xc07a,
0xc092,
tls.TLS_RSA_WITH_RC4_128_SHA,
0x0004,
0x0092,
tls.TLS_RSA_WITH_3DES_EDE_CBC_SHA,
0x0093,
0xfeff,
0xffe0,
0x0062,
0x0009,
0x0061,
0xfefe,
0xffe1,
0x0064,
0x0060,
0x0008,
0x0006,
0x0003,
0x00b9,
0x00b8,
0x002e,
0x003b,
0x0002,
0x0001,
0xff00,
0x00ff,
},
CompressionMethods: []byte{
0x00, // compressionNone
},
Extensions: []tls.TLSExtension{
&tls.SNIExtension{},
&tls.SessionTicketExtension{},
&tls.NPNExtension{},
&tls.SignatureAlgorithmsExtension{SupportedSignatureAlgorithms: []SignatureScheme{
tls.PKCS1WithSHA512,
0x0602,
tls.ECDSAWithP521AndSHA512,
tls.PKCS1WithSHA384,
0x0502,
tls.ECDSAWithP384AndSHA384,
tls.PKCS1WithSHA256,
0x0402,
tls.ECDSAWithP256AndSHA256,
0x0301,
0x0302,
0x0303,
tls.PKCS1WithSHA1,
0x0202,
tls.ECDSAWithSHA1,
0x0807,
0x0808,
},},
&tls.SupportedCurvesExtension{[]tls.CurveID{
0x000e,
0x000d,
tls.CurveP521,
0x001c,
0x001e,
0x000b,
0x000c,
0x001b,
tls.CurveP384,
0x0009,
0x000a,
0x001a,
0x0016,
tls.CurveP256,
tls.X25519,
0x0008,
0x0006,
0x0007,
0x0014,
0x0015,
0x0004,
0x0005,
0x0012,
0x0013,
0x0001,
0x0002,
0x0003,
0x000f,
0x0010,
0x0011,
}},
&tls.SupportedPointsExtension{SupportedPoints: []byte{
0x00, // pointFormatUncompressed
}},
&tls.SCTExtension{},
&tls.StatusRequestExtension{},
&tls.GenericExtension {id: 0x000f}, // WARNING: UNKNOWN EXTENSION, USE AT YOUR OWN RISK
&tls.UtlsPaddingExtension{GetPaddingLen: BoringPaddingStyle},
},
}
tlsConn.ApplyPreset(clientHelloSpec)
n, err = tlsConn.Write("Hello, World!")
// or tlsConn.Handshake() for better control