fix: reality shouldn't check chacha

Author: wwqgtxx

component/tls/reality.go

@@ -24,7 +24,6 @@ import (
 
 	"github.com/metacubex/randv2"
 	utls "github.com/metacubex/utls"
-	"golang.org/x/crypto/chacha20poly1305"
 	"golang.org/x/crypto/hkdf"
 	"golang.org/x/net/http2"
 )
@@ -107,13 +106,8 @@ func GetRealityConn(ctx context.Context, conn net.Conn, fingerprint UClientHello
 		if err != nil {
 			return nil, err
 		}
-		var aeadCipher cipher.AEAD
-		if utls.AesgcmPreferred(hello.CipherSuites) {
-			aesBlock, _ := aes.NewCipher(authKey)
-			aeadCipher, _ = cipher.NewGCM(aesBlock)
-		} else {
-			aeadCipher, _ = chacha20poly1305.New(authKey)
-		}
+		aesBlock, _ := aes.NewCipher(authKey)
+		aeadCipher, _ := cipher.NewGCM(aesBlock)
 		aeadCipher.Seal(hello.SessionId[:0], hello.Random[20:], hello.SessionId[:16], hello.Raw)
 		copy(hello.Raw[39:], hello.SessionId)
 		//log.Debugln("REALITY hello.sessionId: %v", hello.SessionId)

go.mod

@@ -37,7 +37,7 @@ require (
 	github.com/metacubex/sing-wireguard v0.0.0-20250503063753-2dc62acc626f
 	github.com/metacubex/smux v0.0.0-20250922175018-15c9a6a78719
 	github.com/metacubex/tfo-go v0.0.0-20250921095601-b102db4216c0
-	github.com/metacubex/utls v1.8.1-0.20250921102910-221428e5d4b2
+	github.com/metacubex/utls v1.8.1-0.20250923095929-5a5baffa4b76
 	github.com/metacubex/wireguard-go v0.0.0-20250820062549-a6cecdd7f57f
 	github.com/miekg/dns v1.1.63 // lastest version compatible with golang1.20
 	github.com/mroth/weightedrand/v2 v2.1.0

go.sum

@@ -145,8 +145,8 @@ github.com/metacubex/smux v0.0.0-20250922175018-15c9a6a78719 h1:T6qCCfolRDAVJKea
 github.com/metacubex/smux v0.0.0-20250922175018-15c9a6a78719/go.mod h1:4bPD8HWx9jPJ9aE4uadgyN7D1/Wz3KmPy+vale8sKLE=
 github.com/metacubex/tfo-go v0.0.0-20250921095601-b102db4216c0 h1:Ui+/2s5Qz0lSnDUBmEL12M5Oi/PzvFxGTNohm8ZcsmE=
 github.com/metacubex/tfo-go v0.0.0-20250921095601-b102db4216c0/go.mod h1:l9oLnLoEXyGZ5RVLsh7QCC5XsouTUyKk4F2nLm2DHLw=
-github.com/metacubex/utls v1.8.1-0.20250921102910-221428e5d4b2 h1:5OGzQvoE5yuOe8AsZsFwhf32ZxKmKN9G+k06AVd+6jY=
-github.com/metacubex/utls v1.8.1-0.20250921102910-221428e5d4b2/go.mod h1:GN/CB3TRwQ9LYquYpIFynDkvMTYmkjwI7+mkUIoHj88=
+github.com/metacubex/utls v1.8.1-0.20250923095929-5a5baffa4b76 h1:AVnkXS1hC68RIuMYDg3URfmf/GdOeNIfj0RUwRj9G+Q=
+github.com/metacubex/utls v1.8.1-0.20250923095929-5a5baffa4b76/go.mod h1:67I3skhEY4Sya8f1YxELwWPoeQdXqZCrWNYLvq8gn2U=
 github.com/metacubex/wireguard-go v0.0.0-20250820062549-a6cecdd7f57f h1:FGBPRb1zUabhPhDrlKEjQ9lgIwQ6cHL4x8M9lrERhbk=
 github.com/metacubex/wireguard-go v0.0.0-20250820062549-a6cecdd7f57f/go.mod h1:oPGcV994OGJedmmxrcK9+ni7jUEMGhR+uVQAdaduIP4=
 github.com/metacubex/yamux v0.0.0-20250918083631-dd5f17c0be49 h1:lhlqpYHopuTLx9xQt22kSA9HtnyTDmk5XjjQVCGHe2E=
@@ -206,7 +206,6 @@ github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXl
 github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
 github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
 github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
-github.com/tiendc/go-deepcopy v1.6.1 h1:uVRTItFeNHkMcLueHS7OCsxgxT9P8MzGB/taUa2Y4Tk=
 github.com/tklauser/go-sysconf v0.3.12 h1:0QaGUFOdQaIVdPgfITYzaTegZvdCjmYO52cSFAEVmqU=
 github.com/tklauser/go-sysconf v0.3.12/go.mod h1:Ho14jnntGE1fpdOqQEEaiKRpvIavV0hSfmBq8nJbHYI=
 github.com/tklauser/numcpus v0.6.1 h1:ng9scYS7az0Bk4OZLvrNXNSAO2Pxr1XXRAPyjhIx+Fk=