tls 0x301

client:

hello := &clientHelloMsg{
   vers:                         clientHelloVersion,
   compressionMethods:           []uint8{compressionNone},
   random:                       make([]byte, 32),
   sessionId:                    make([]byte, 32),
   ocspStapling:                 true,
   scts:                         true,
   serverName:                   hostnameInSNI(config.ServerName),
   supportedCurves:              config.curvePreferences(),
   supportedPoints:              []uint8{pointFormatUncompressed},
   secureRenegotiationSupported: true,
   alpnProtocols:                config.NextProtos,
   supportedVersions:            supportedVersions,
}

 

topCipherSuites = []uint16{
   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
   TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
   TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,
   TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,
}
varDefaultCipherSuitesTLS13 = []uint16{
   TLS_AES_128_GCM_SHA256,
   TLS_CHACHA20_POLY1305_SHA256,
   TLS_AES_256_GCM_SHA384,
}