From 657176062a31eb470a296ddc5afa59a1a9e73dbb Mon Sep 17 00:00:00 2001
From: saba <tameemtakouan@hotmail.com>
Date: Sat, 29 Nov 2025 14:41:33 +0800
Subject: [PATCH] simlify config by deleting seed

---
 adapter/outbound/sudoku.go | 148 +------------------------------------
 1 file changed, 2 insertions(+), 146 deletions(-)

diff --git a/adapter/outbound/sudoku.go b/adapter/outbound/sudoku.go
index 5fcc0800..27b1a6e9 100644
--- a/adapter/outbound/sudoku.go
+++ b/adapter/outbound/sudoku.go
@@ -6,7 +6,6 @@ import (
 	"encoding/binary"
 	"fmt"
 	"io"
-	"math/rand"
 	"net"
 	"strconv"
 	"strings"
@@ -174,7 +173,8 @@ func NewSudoku(option SudokuOption) (*Sudoku, error) {
 	}
 
 	// Use local initTable instead of sudoku.NewTable to control logging
-	table := initTable(seed, tableType)
+	table := sudoku.NewTable(seed, tableType)
+	log.Infoln("[Sudoku] Tables initialized (%s)", tableType)
 
 	defaultConf := apis.DefaultConfig()
 	paddingMin := defaultConf.PaddingMin
@@ -268,147 +268,3 @@ func writeTargetAddress(w io.Writer, rawAddr string) error {
 	_, err = w.Write(buf)
 	return err
 }
-
-// initTable initializes the obfuscation tables with Mihomo logging
-// mode: "prefer_ascii" or "prefer_entropy"
-func initTable(key string, mode string) *sudoku.Table {
-	start := time.Now()
-	t := &sudoku.Table{
-		DecodeMap: make(map[uint32]byte),
-		IsASCII:   mode == "prefer_ascii",
-	}
-
-	// Initialize padding pool and encoding logic
-	if t.IsASCII {
-		// === ASCII Mode (0x20 - 0x7F) ===
-		// Payload (Hint): 01vvpppp (Bit 6 is 1) -> 0x40 | ...
-		// Padding: 001xxxxx (Bit 6 is 0) -> 0x20 | rand(0-31)
-		// Range: Padding [32, 63], Payload [64, 127]
-
-		t.PaddingPool = make([]byte, 0, 32)
-		for i := 0; i < 32; i++ {
-			// 001xxxxx -> 0x20 + i
-			t.PaddingPool = append(t.PaddingPool, byte(0x20+i))
-		}
-	} else {
-		// === Entropy Mode (Legacy) ===
-		// Padding: 0x80 (10000xxx) & 0x10 (00010xxx)
-		// Payload: Avoids bits 7 and 4 being strictly defined like padding
-		t.PaddingPool = make([]byte, 0, 16)
-		for i := 0; i < 8; i++ {
-			t.PaddingPool = append(t.PaddingPool, byte(0x80+i))
-			t.PaddingPool = append(t.PaddingPool, byte(0x10+i))
-		}
-	}
-
-	// Generate sudoku grids
-	allGrids := sudoku.GenerateAllGrids()
-	h := sha256.New()
-	h.Write([]byte(key))
-	seed := int64(binary.BigEndian.Uint64(h.Sum(nil)[:8]))
-	rng := rand.New(rand.NewSource(seed))
-
-	shuffledGrids := make([]sudoku.Grid, 288)
-	copy(shuffledGrids, allGrids)
-	rng.Shuffle(len(shuffledGrids), func(i, j int) {
-		shuffledGrids[i], shuffledGrids[j] = shuffledGrids[j], shuffledGrids[i]
-	})
-
-	// Pre-calculate combinations
-	var combinations [][]int
-	var combine func(int, int, []int)
-	combine = func(s, k int, c []int) {
-		if k == 0 {
-			tmp := make([]int, len(c))
-			copy(tmp, c)
-			combinations = append(combinations, tmp)
-			return
-		}
-		for i := s; i <= 16-k; i++ {
-			c = append(c, i)
-			combine(i+1, k-1, c)
-			c = c[:len(c)-1]
-		}
-	}
-	combine(0, 4, []int{})
-
-	// Build mapping table
-	for byteVal := 0; byteVal < 256; byteVal++ {
-		targetGrid := shuffledGrids[byteVal]
-		for _, positions := range combinations {
-			var currentHints [4]byte
-
-			// 1. Calculate Abstract Hints
-			var rawParts [4]struct{ val, pos byte }
-
-			for i, pos := range positions {
-				val := targetGrid[pos] // 1..4
-				rawParts[i] = struct{ val, pos byte }{val, uint8(pos)}
-			}
-
-			// Check uniqueness (Sudoku logic)
-			matchCount := 0
-			for _, g := range allGrids {
-				match := true
-				for _, p := range rawParts {
-					if g[p.pos] != p.val {
-						match = false
-						break
-					}
-				}
-				if match {
-					matchCount++
-					if matchCount > 1 {
-						break
-					}
-				}
-			}
-
-			if matchCount == 1 {
-				// Unique, generate final encoding bytes
-				for i, p := range rawParts {
-					if t.IsASCII {
-						// ASCII Encoding: 01vvpppp
-						// vv = val-1 (0..3), pppp = pos (0..15)
-						// 0x40 | (vv << 4) | pppp
-						currentHints[i] = 0x40 | ((p.val - 1) << 4) | (p.pos & 0x0F)
-					} else {
-						// Entropy Encoding (Legacy)
-						// 0vv0pppp
-						// Format: ((val-1) << 5) | pos
-						currentHints[i] = ((p.val - 1) << 5) | (p.pos & 0x0F)
-					}
-				}
-
-				t.EncodeTable[byteVal] = append(t.EncodeTable[byteVal], currentHints)
-				// Generate decode key
-				key := packHintsToKey(currentHints)
-				t.DecodeMap[key] = byte(byteVal)
-			}
-		}
-	}
-	log.Infoln("[Sudoku] Tables initialized (%s) in %v", mode, time.Since(start))
-	return t
-}
-
-func packHintsToKey(hints [4]byte) uint32 {
-	// Sorting network for 4 elements (Bubble sort unrolled)
-	// Swap if a > b
-	if hints[0] > hints[1] {
-		hints[0], hints[1] = hints[1], hints[0]
-	}
-	if hints[2] > hints[3] {
-		hints[2], hints[3] = hints[3], hints[2]
-	}
-	if hints[0] > hints[2] {
-		hints[0], hints[2] = hints[2], hints[0]
-	}
-	if hints[1] > hints[3] {
-		hints[1], hints[3] = hints[3], hints[1]
-	}
-	if hints[1] > hints[2] {
-		hints[1], hints[2] = hints[2], hints[1]
-	}
-
-	return uint32(hints[0])<<24 | uint32(hints[1])<<16 | uint32(hints[2])<<8 | uint32(hints[3])
-}