From 40222de0f7bd5e556d0a0c18229231e24101f178 Mon Sep 17 00:00:00 2001
From: Darien Raymond <admin@v2ray.com>
Date: Sun, 26 Nov 2017 16:55:46 +0100
Subject: [PATCH] fix chunk parser for ss aead

---
 common/crypto/chunk.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/common/crypto/chunk.go b/common/crypto/chunk.go
index 84eb438c..5b622df6 100644
--- a/common/crypto/chunk.go
+++ b/common/crypto/chunk.go
@@ -43,7 +43,7 @@ func (p *AEADChunkSizeParser) SizeBytes() int {
 }
 
 func (p *AEADChunkSizeParser) Encode(size uint16, b []byte) []byte {
-	b = serial.Uint16ToBytes(size, b)
+	b = serial.Uint16ToBytes(size-uint16(p.Auth.Overhead()), b)
 	b, err := p.Auth.Seal(b[:0], b)
 	common.Must(err)
 	return b
@@ -54,7 +54,7 @@ func (p *AEADChunkSizeParser) Decode(b []byte) (uint16, error) {
 	if err != nil {
 		return 0, err
 	}
-	return serial.BytesToUint16(b), nil
+	return serial.BytesToUint16(b) + uint16(p.Auth.Overhead()), nil
 }
 
 type ChunkStreamReader struct {