REALITY config: Convert mldsa65Seed to its private key later

transport/internet/reality/config.go

@@ -7,6 +7,7 @@ import (
 	"os"
 	"time"
 
+	"github.com/cloudflare/circl/sign/mldsa/mldsa65"
 	"github.com/xtls/reality"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/transport/internet"
@@ -27,13 +28,15 @@ func (c *Config) GetREALITYConfig() *reality.Config {
 		MaxClientVer: c.MaxClientVer,
 		MaxTimeDiff:  time.Duration(c.MaxTimeDiff) * time.Millisecond,
 
-		Mldsa65Key: c.Mldsa65Key,
-
 		NextProtos:             nil, // should be nil
 		SessionTicketsDisabled: true,
 
 		KeyLogWriter: KeyLogWriterFromConfig(c),
 	}
+	if c.Mldsa65Seed != nil {
+		_, key := mldsa65.NewKeyFromSeed((*[32]byte)(c.Mldsa65Seed))
+		config.Mldsa65Key = key.Bytes()
+	}
 	if c.LimitFallbackUpload != nil {
 		config.LimitFallbackUpload.AfterBytes = c.LimitFallbackUpload.AfterBytes
 		config.LimitFallbackUpload.BytesPerSec = c.LimitFallbackUpload.BytesPerSec