REALITY practice: Support X25519MLKEM768 for TLS' communication

#3813 (comment)

Author: RPRX

go.mod

@@ -20,7 +20,7 @@ require (
 	github.com/stretchr/testify v1.10.0
 	github.com/v2fly/ss-bloomring v0.0.0-20210312155135-28617310f63e
 	github.com/vishvananda/netlink v1.3.1
-	github.com/xtls/reality v0.0.0-20240712055506-48f0b2d5ed6d
+	github.com/xtls/reality v0.0.0-20250513125209-514f8647eac0
 	go4.org/netipx v0.0.0-20231129151722-fdeea329fbba
 	golang.org/x/crypto v0.38.0
 	golang.org/x/net v0.40.0

go.sum

@@ -78,6 +78,8 @@ github.com/vishvananda/netns v0.0.5 h1:DfiHV+j8bA32MFM7bfEunvT8IAqQ/NzSJHtcmW5zd
 github.com/vishvananda/netns v0.0.5/go.mod h1:SpkAiCQRtJ6TvvxPnOSyH3BMl6unz3xZlaprSwhNNJM=
 github.com/xtls/reality v0.0.0-20240712055506-48f0b2d5ed6d h1:+B97uD9uHLgAAulhigmys4BVwZZypzK7gPN3WtpgRJg=
 github.com/xtls/reality v0.0.0-20240712055506-48f0b2d5ed6d/go.mod h1:dm4y/1QwzjGaK17ofi0Vs6NpKAHegZky8qk6J2JJZAE=
+github.com/xtls/reality v0.0.0-20250513125209-514f8647eac0 h1:ou6jXqJ9Ogs0BaEIzuszo1HMBokiKpf7XpNdsVYcvfA=
+github.com/xtls/reality v0.0.0-20250513125209-514f8647eac0/go.mod h1:bJdU3ExzfUlY40Xxfibq3THW9IHiE8mHu/tEzud5JWM=
 github.com/yuin/goldmark v1.4.1/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 go.opentelemetry.io/auto/sdk v1.1.0 h1:cH53jehLUN6UFLY71z+NDOiNJqDdPRaXzTel0sJySYA=
 go.opentelemetry.io/auto/sdk v1.1.0/go.mod h1:3wSPjt5PWp2RhlCcmmOial7AvC4DQqZb7a7wCow3W8A=

transport/internet/tls/tls.go

@@ -163,7 +163,7 @@ func init() {
 
 func GetFingerprint(name string) (fingerprint *utls.ClientHelloID) {
 	if name == "" {
-		return &utls.HelloChrome_120
+		return &utls.HelloChrome_Auto
 	}
 	if fingerprint = PresetFingerprints[name]; fingerprint != nil {
 		return
@@ -179,7 +179,7 @@ func GetFingerprint(name string) (fingerprint *utls.ClientHelloID) {
 
 var PresetFingerprints = map[string]*utls.ClientHelloID{
 	// Recommended preset options in GUI clients
-	"chrome":           &utls.HelloChrome_120,
+	"chrome":           &utls.HelloChrome_Auto,
 	"firefox":          &utls.HelloFirefox_Auto,
 	"safari":           &utls.HelloSafari_Auto,
 	"ios":              &utls.HelloIOS_Auto,
@@ -206,6 +206,7 @@ var ModernFingerprints = map[string]*utls.ClientHelloID{
 	"hellochrome_102":         &utls.HelloChrome_102,
 	"hellochrome_106_shuffle": &utls.HelloChrome_106_Shuffle,
 	"hellochrome_120":         &utls.HelloChrome_120,
+	"hellochrome_131":         &utls.HelloChrome_131,
 	"helloios_13":             &utls.HelloIOS_13,
 	"helloios_14":             &utls.HelloIOS_14,
 	"helloedge_85":            &utls.HelloEdge_85,
@@ -241,12 +242,11 @@ var OtherFingerprints = map[string]*utls.ClientHelloID{
 	"hello360_7_5":           &utls.Hello360_7_5,
 	"helloqq_auto":           &utls.HelloQQ_Auto,
 
-	// reality currently does not support these new fingerprints
+	// Chrome betas'
 	"hellochrome_100_psk":              &utls.HelloChrome_100_PSK,
 	"hellochrome_112_psk_shuf":         &utls.HelloChrome_112_PSK_Shuf,
 	"hellochrome_114_padding_psk_shuf": &utls.HelloChrome_114_Padding_PSK_Shuf,
 	"hellochrome_115_pq":               &utls.HelloChrome_115_PQ,
 	"hellochrome_115_pq_psk":           &utls.HelloChrome_115_PQ_PSK,
 	"hellochrome_120_pq":               &utls.HelloChrome_120_PQ,
-	"hellochrome_131":                  &utls.HelloChrome_131,
 }