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VLESS protocol: Add lightweight Post-Quantum ML-KEM-768-based PFS 1-RTT / anti-replay 0-RTT AEAD encryption

Browse Source 
https://github.com/XTLS/Xray-core/pull/4952#issuecomment-3163335040
This commit is contained in:
RPRX
2025-08-10 11:50:18 +00:00
committed by GitHub
parent 0cceea75da
commit f61c14e9c6
18 changed files with 769 additions and 68 deletions
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49
proxy/vless/inbound/config.pb.go
View File

@@ -111,11 +111,10 @@ type Config struct {
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
Clients []*protocol.User `protobuf:"bytes,1,rep,name=clients,proto3" json:"clients,omitempty"`
// Decryption settings. Only applies to server side, and only accepts "none"
// for now.
Decryption string `protobuf:"bytes,2,opt,name=decryption,proto3" json:"decryption,omitempty"`
Fallbacks []*Fallback `protobuf:"bytes,3,rep,name=fallbacks,proto3" json:"fallbacks,omitempty"`
Clients []*protocol.User `protobuf:"bytes,1,rep,name=clients,proto3" json:"clients,omitempty"`
Fallbacks []*Fallback `protobuf:"bytes,2,rep,name=fallbacks,proto3" json:"fallbacks,omitempty"`
Decryption string `protobuf:"bytes,3,opt,name=decryption,proto3" json:"decryption,omitempty"`
Minutes uint32 `protobuf:"varint,4,opt,name=minutes,proto3" json:"minutes,omitempty"`
}
func (x *Config) Reset() {
@@ -155,6 +154,13 @@ func (x *Config) GetClients() []*protocol.User {
return nil
}
func (x *Config) GetFallbacks() []*Fallback {
if x != nil {
return x.Fallbacks
}
return nil
}
func (x *Config) GetDecryption() string {
if x != nil {
return x.Decryption
@@ -162,11 +168,11 @@ func (x *Config) GetDecryption() string {
return ""
}
func (x *Config) GetFallbacks() []*Fallback {
func (x *Config) GetMinutes() uint32 {
if x != nil {
return x.Fallbacks
return x.Minutes
}
return nil
return 0
}
var File_proxy_vless_inbound_config_proto protoreflect.FileDescriptor
@@ -185,25 +191,26 @@ var file_proxy_vless_inbound_config_proto_rawDesc = []byte{
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}
var (

8
proxy/vless/inbound/config.proto
View File

@@ -19,8 +19,8 @@ message Fallback {
message Config {
repeated xray.common.protocol.User clients = 1;
// Decryption settings. Only applies to server side, and only accepts "none"
// for now.
string decryption = 2;
repeated Fallback fallbacks = 3;
repeated Fallback fallbacks = 2;
string decryption = 3;
uint32 minutes = 4;
}

19
proxy/vless/inbound/inbound.go
View File

@@ -4,6 +4,7 @@ import (
"bytes"
"context"
gotls "crypto/tls"
"encoding/base64"
"io"
"reflect"
"strconv"
@@ -29,6 +30,7 @@ import (
"github.com/xtls/xray-core/proxy"
"github.com/xtls/xray-core/proxy/vless"
"github.com/xtls/xray-core/proxy/vless/encoding"
"github.com/xtls/xray-core/proxy/vless/encryption"
"github.com/xtls/xray-core/transport/internet/reality"
"github.com/xtls/xray-core/transport/internet/stat"
"github.com/xtls/xray-core/transport/internet/tls"
@@ -67,6 +69,7 @@ type Handler struct {
policyManager policy.Manager
validator vless.Validator
dns dns.Client
decryption *encryption.ServerInstance
fallbacks map[string]map[string]map[string]*Fallback // or nil
// regexps map[string]*regexp.Regexp // or nil
}
@@ -81,6 +84,14 @@ func New(ctx context.Context, config *Config, dc dns.Client, validator vless.Val
validator: validator,
}
d, _ := base64.RawURLEncoding.DecodeString(config.Decryption)
if len(d) == 64 {
handler.decryption = &encryption.ServerInstance{}
if err := handler.decryption.Init(d, time.Duration(config.Minutes)*time.Minute); err != nil {
return nil, errors.New("failed to use mlkem768seed").Base(err).AtError()
}
}
if config.Fallbacks != nil {
handler.fallbacks = make(map[string]map[string]map[string]*Fallback)
// handler.regexps = make(map[string]*regexp.Regexp)
@@ -204,6 +215,14 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
return errors.New("unable to set read deadline").Base(err).AtWarning()
}
if h.decryption != nil {
var err error
connection, err = h.decryption.Handshake(connection)
if err != nil {
return errors.New("ML-KEM-768 handshake failed").Base(err).AtInfo()
}
}
first := buf.FromBytes(make([]byte, buf.Size))
first.Clear()
firstLen, errR := first.ReadFrom(connection)