Add operator randomizer for xor_seed obfuscator

internal/literals/xor_seed.go

@@ -19,9 +19,11 @@ func (x xorSeed) obfuscate(data []byte) *ast.BlockStmt {
 	seed := preSeed[0]
 	originalSeed := seed
 
+	op := genRandOperator()
+
 	var callExpr *ast.CallExpr
 	for i, b := range data {
-		encB := b ^ seed
+		encB := evalOperator(op, b, seed)
 		seed += encB
 
 		if i == 0 {
@@ -95,11 +97,7 @@ func (x xorSeed) obfuscate(data []byte) *ast.BlockStmt {
 							Lhs: []ast.Expr{ah.Ident("data")},
 							Tok: token.ASSIGN,
 							Rhs: []ast.Expr{
-								ah.CallExpr(ah.Ident("append"), ah.Ident("data"), &ast.BinaryExpr{
-									X:  ah.Ident("x"),
-									Op: token.XOR,
-									Y:  ah.Ident("seed"),
-								}),
+								ah.CallExpr(ah.Ident("append"), ah.Ident("data"), getReversedOperator(op, ah.Ident("x"), ah.Ident("seed"))),
 							},
 						},
 						&ast.AssignStmt{