diff --git a/Editor/ObfusPasses/ConstObfus/ConstObfusPass.cs b/Editor/ObfusPasses/ConstObfus/ConstObfusPass.cs
index 58b6428..eea90c6 100644
--- a/Editor/ObfusPasses/ConstObfus/ConstObfusPass.cs
+++ b/Editor/ObfusPasses/ConstObfus/ConstObfusPass.cs
@@ -1,6 +1,7 @@
 using dnlib.DotNet;
 using dnlib.DotNet.Emit;
 using Obfuz.ObfusPasses.ConstObfus.Policies;
+using Obfuz.Settings;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -14,12 +15,18 @@ namespace Obfuz.ObfusPasses.ConstObfus
 
     public class ConstObfusPass : InstructionObfuscationPassBase
     {
+        private readonly string _configFile;
         private IObfuscationPolicy _dataObfuscatorPolicy;
         private IDataObfuscator _dataObfuscator;
 
+        public ConstObfusPass(ConstObfusSettings settings)
+        {
+            _configFile = settings.configFile;
+        }
+
         public override void Start(ObfuscationPassContext ctx)
         {
-            _dataObfuscatorPolicy = new RuleBasedObfuscationPolicy();
+            _dataObfuscatorPolicy = new ConfigurableObfuscationPolicy(ctx.toObfuscatedAssemblyNames, _configFile);
             _dataObfuscator = new DefaultConstObfuscator();
         }
 
diff --git a/Editor/ObfusPasses/ConstObfus/Policies/ConfigurableObfuscationPolicy.cs b/Editor/ObfusPasses/ConstObfus/Policies/ConfigurableObfuscationPolicy.cs
new file mode 100644
index 0000000..e496d4e
--- /dev/null
+++ b/Editor/ObfusPasses/ConstObfus/Policies/ConfigurableObfuscationPolicy.cs
@@ -0,0 +1,604 @@
+using dnlib.DotNet;
+using Obfuz.Utils;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml;
+using UnityEngine;
+
+namespace Obfuz.ObfusPasses.ConstObfus.Policies
+{
+    public class ConfigurableObfuscationPolicy : ObfuscationPolicyBase
+    {
+        private readonly List<string> _toObfuscatedAssemblyNames;
+
+        class NumberRange<T> where T : struct
+        {
+            public readonly T? min;
+            public readonly T? max;
+
+            public NumberRange(T? min, T? max)
+            {
+                this.min = min;
+                this.max = max;
+            }
+        }
+
+        class ObfuscationRule
+        {
+            public bool? disableEncrypt;
+            public bool? encryptInt;
+            public bool? encryptLong;
+            public bool? encryptFloat;
+            public bool? encryptDouble;
+            public bool? encryptArray;
+            public bool? encryptString;
+            public bool? cacheConstInLoop;
+            public bool? cacheConstNotInLoop;
+            public bool? cacheStringNotInLoop;
+            public HashSet<int> notEncryptInts = new HashSet<int>();
+            public HashSet<long> notEncryptLongs = new HashSet<long>();
+            public HashSet<string> notEncryptStrings = new HashSet<string>();
+            public List<NumberRange<int>> notEncryptIntRanges = new List<NumberRange<int>>();
+            public List<NumberRange<long>> notEncryptLongRanges = new List<NumberRange<long>>();
+            public List<NumberRange<float>> notEncryptFloatRanges = new List<NumberRange<float>>();
+            public List<NumberRange<double>> notEncryptDoubleRanges = new List<NumberRange<double>>();
+
+            public void InheritParent(ObfuscationRule parentRule)
+            {
+                if (disableEncrypt == null)
+                    disableEncrypt = parentRule.disableEncrypt;
+                if (encryptInt == null)
+                    encryptInt = parentRule.encryptInt;
+                if (encryptLong == null)
+                    encryptLong = parentRule.encryptLong;
+                if (encryptFloat == null)
+                    encryptFloat = parentRule.encryptFloat;
+                if (encryptDouble == null)
+                    encryptDouble = parentRule.encryptDouble;
+                if (encryptArray == null)
+                    encryptArray = parentRule.encryptArray;
+                if (encryptString == null)
+                    encryptString = parentRule.encryptString;
+                if (cacheConstInLoop == null)
+                    cacheConstInLoop = parentRule.cacheConstInLoop;
+                if (cacheConstNotInLoop == null)
+                    cacheConstNotInLoop = parentRule.cacheConstNotInLoop;
+                if (cacheStringNotInLoop == null)
+                    cacheStringNotInLoop = parentRule.cacheStringNotInLoop;
+
+                notEncryptInts.AddRange(parentRule.notEncryptInts);
+                notEncryptLongs.AddRange(parentRule.notEncryptLongs);
+                notEncryptStrings.AddRange(parentRule.notEncryptStrings);
+                notEncryptIntRanges.AddRange(parentRule.notEncryptIntRanges);
+                notEncryptLongRanges.AddRange(parentRule.notEncryptLongRanges);
+                notEncryptFloatRanges.AddRange(parentRule.notEncryptFloatRanges);
+                notEncryptDoubleRanges.AddRange(parentRule.notEncryptDoubleRanges);
+            }
+        }
+
+        class MethodSpec
+        {
+            public string name;
+            public NameMatcher nameMatcher;
+            public ObfuscationRule rule;
+        }
+
+        class TypeSpec
+        {
+            public string name;
+            public NameMatcher nameMatcher;
+            public ObfuscationRule rule;
+            public List<MethodSpec> methodSpecs = new List<MethodSpec>();
+        }
+
+        class AssemblySpec
+        {
+            public string name;
+            public ObfuscationRule rule;
+            public List<TypeSpec> typeSpecs = new List<TypeSpec>();
+        }
+
+        private static readonly ObfuscationRule s_default = new ObfuscationRule()
+        {
+            disableEncrypt = false,
+            encryptInt = true,
+            encryptLong = true,
+            encryptFloat = true,
+            encryptDouble = true,
+            encryptArray = true,
+            encryptString = true,
+            cacheConstInLoop = true,
+            cacheConstNotInLoop = false,
+            cacheStringNotInLoop = true,
+        };
+
+        private ObfuscationRule _global;
+        private readonly Dictionary<string, AssemblySpec> _assemblySpecs = new Dictionary<string, AssemblySpec>();
+        private readonly Dictionary<MethodDef, ObfuscationRule> _methodRuleCache = new Dictionary<MethodDef, ObfuscationRule>();
+
+        public ConfigurableObfuscationPolicy(List<string> toObfuscatedAssemblyNames, string xmlConfigFile)
+        {
+            _toObfuscatedAssemblyNames = toObfuscatedAssemblyNames;
+            LoadConfig(xmlConfigFile);
+            InheritParentRules();
+        }
+
+        private void LoadConfig(string configFile)
+        {
+            if (string.IsNullOrEmpty(configFile))
+            {
+                return;
+            }
+            Debug.Log($"ConfigurableObfuscationPolicy::LoadConfig {configFile}");
+            var doc = new XmlDocument();
+            doc.Load(configFile);
+            var root = doc.DocumentElement;
+            if (root.Name != "obfuz")
+            {
+                throw new Exception($"Invalid xml file {configFile}, root name should be 'obfuz'");
+            }
+            foreach (XmlNode node in root.ChildNodes)
+            {
+                if (!(node is XmlElement ele))
+                {
+                    continue;
+                }
+                switch (ele.Name)
+                {
+                    case "global": _global = ParseObfuscationRule(ele, true); break;
+                    case "assembly":
+                    {
+                        AssemblySpec assSpec = ParseAssembly(ele);
+                        string name = assSpec.name;
+                        if (!_toObfuscatedAssemblyNames.Contains(name))
+                        {
+                            throw new Exception($"Invalid xml file {configFile}, assembly name {name} is in toObfuscatedAssemblyNames");
+                        }
+                        if (_assemblySpecs.ContainsKey(name))
+                        {
+                            throw new Exception($"Invalid xml file {configFile}, assembly name {name} is duplicated");
+                        }
+                        _assemblySpecs.Add(name, assSpec);
+                        break;
+                    }
+                    default: throw new Exception($"Invalid xml file {configFile}, unknown node {ele.Name}");
+                }
+            }
+        }
+
+        private void InheritParentRules()
+        {
+            if (_global == null)
+            {
+                _global = s_default;
+            }
+            else
+            {
+                _global.InheritParent(s_default);
+            }
+            foreach (AssemblySpec assSpec in _assemblySpecs.Values)
+            {
+                assSpec.rule.InheritParent(_global);
+                foreach (TypeSpec typeSpec in assSpec.typeSpecs)
+                {
+                    typeSpec.rule.InheritParent(assSpec.rule);
+                    foreach (MethodSpec methodSpec in typeSpec.methodSpecs)
+                    {
+                        methodSpec.rule.InheritParent(typeSpec.rule);
+                    }
+                }
+            }
+        }
+
+        private bool ParseBool(string str)
+        {
+            switch (str.ToLowerInvariant())
+            {
+                case "1":
+                case "true": return true;
+                case "0":
+                case "false": return false;
+                default: throw new Exception($"Invalid bool value {str}");
+            }
+        }
+
+        private int? ParseNullableInt(string str)
+        {
+            if (string.IsNullOrEmpty(str))
+            {
+                return null;
+            }
+            return int.Parse(str);
+        }
+
+        private long? ParseNullableLong(string str)
+        {
+            if (string.IsNullOrEmpty(str))
+            {
+                return null;
+            }
+            return long.Parse(str);
+        }
+
+        private float? ParseNullableFloat(string str)
+        {
+            if (string.IsNullOrEmpty(str))
+            {
+                return null;
+            }
+            return float.Parse(str);
+        }
+
+        private double? ParseNullableDouble(string str)
+        {
+            if (string.IsNullOrEmpty(str))
+            {
+                return null;
+            }
+            return double.Parse(str);
+        }
+
+        private ObfuscationRule ParseObfuscationRule(XmlElement ele, bool parseWhitelist)
+        {
+            var rule = new ObfuscationRule();
+            if (ele.HasAttribute("disableEncrypt"))
+            {
+                rule.disableEncrypt = ParseBool(ele.GetAttribute("disableEncrypt"));
+            }
+            if (ele.HasAttribute("encryptInt"))
+            {
+                rule.encryptInt = ParseBool(ele.GetAttribute("encryptInt"));
+            }
+            if (ele.HasAttribute("encryptLong"))
+            {
+                rule.encryptLong = ParseBool(ele.GetAttribute("encryptLong"));
+            }
+            if (ele.HasAttribute("encryptFloat"))
+            {
+                rule.encryptFloat = ParseBool(ele.GetAttribute("encryptFloat"));
+            }
+            if (ele.HasAttribute("encryptDouble"))
+            {
+                rule.encryptDouble = ParseBool(ele.GetAttribute("encryptDouble"));
+            }
+            if (ele.HasAttribute("encryptBytes"))
+            {
+                rule.encryptArray = ParseBool(ele.GetAttribute("encryptArray"));
+            }
+            if (ele.HasAttribute("encryptString"))
+            {
+                rule.encryptString = ParseBool(ele.GetAttribute("encryptString"));
+            }
+            if (ele.HasAttribute("cacheConstInLoop"))
+            {
+                rule.cacheConstInLoop = ParseBool(ele.GetAttribute("cacheConstInLoop"));
+            }
+            if (ele.HasAttribute("cacheConstNotInLoop"))
+            {
+                rule.cacheConstNotInLoop = ParseBool(ele.GetAttribute("cacheConstNotInLoop"));
+            }
+            if (ele.HasAttribute("cacheStringNotInLoop"))
+            {
+                rule.cacheStringNotInLoop = ParseBool(ele.GetAttribute("cacheStringNotInLoop"));
+            }
+            if (parseWhitelist)
+            {
+                ParseWhitelist(ele, rule);
+            }
+            return rule;
+        }
+        
+        private void ParseWhitelist(XmlElement ruleEle, ObfuscationRule rule)
+        {
+            foreach (XmlNode xmlNode in ruleEle.ChildNodes)
+            {
+                if (!(xmlNode is XmlElement childEle))
+                {
+                    continue;
+                }
+                switch (childEle.Name)
+                {
+                    case "whitelist":
+                    {
+                        string type = childEle.GetAttribute("type");
+                        if (string.IsNullOrEmpty(type))
+                        {
+                            throw new Exception($"Invalid xml file, whitelist type is empty");
+                        }
+                        string value = childEle.InnerText;
+                        switch (type)
+                        {
+                            case "int":
+                            {
+                                rule.notEncryptInts.AddRange(value.Split(",").Select(s => int.Parse(s.Trim())));
+                                break;
+                            }
+                            case "long":
+                            {
+                                rule.notEncryptLongs.AddRange(value.Split(",").Select(s => long.Parse(s.Trim())));
+                                break;
+                            }
+                            case "string":
+                            {
+                                rule.notEncryptStrings.AddRange(value.Split(",").Select(s => s.Trim()));
+                                break;
+                            }
+                            case "int-range":
+                            {
+                                var parts = value.Split(",");
+                                if (parts.Length != 2)
+                                {
+                                    throw new Exception($"Invalid xml file, int-range {value} is invalid");
+                                }
+                                rule.notEncryptIntRanges.Add(new NumberRange<int>(ParseNullableInt(parts[0]), ParseNullableInt(parts[1])));
+                                break;
+                            }
+                            case "long-range":
+                            {
+                                var parts = value.Split(",");
+                                if (parts.Length != 2)
+                                {
+                                    throw new Exception($"Invalid xml file, long-range {value} is invalid");
+                                }
+                                rule.notEncryptLongRanges.Add(new NumberRange<long>(ParseNullableLong(parts[0]), ParseNullableLong(parts[1])));
+                                break;
+                            }
+                            case "float-range":
+                            {
+                                var parts = value.Split(",");
+                                if (parts.Length != 2)
+                                {
+                                    throw new Exception($"Invalid xml file, float-range {value} is invalid");
+                                }
+                                rule.notEncryptFloatRanges.Add(new NumberRange<float>(ParseNullableFloat(parts[0]), ParseNullableFloat(parts[1])));
+                                break;
+                            }
+                            case "double-range":
+                            {
+                                var parts = value.Split(",");
+                                if (parts.Length != 2)
+                                {
+                                    throw new Exception($"Invalid xml file, double-range {value} is invalid");
+                                }
+                                rule.notEncryptDoubleRanges.Add(new NumberRange<double>(ParseNullableDouble(parts[0]), ParseNullableDouble(parts[1])));
+                                break;
+                            }
+                            default: throw new Exception($"Invalid xml file, unknown whitelist type {type} in {childEle.Name} node");
+                        }
+                        break;
+                    }
+                    default: throw new Exception($"Invalid xml file, unknown node {childEle.Name}");
+                }
+            }
+        }
+
+        private AssemblySpec ParseAssembly(XmlElement element)
+        {
+            var assemblySpec = new AssemblySpec();
+            assemblySpec.name = element.GetAttribute("name");
+            if (string.IsNullOrEmpty(assemblySpec.name))
+            {
+                throw new Exception($"Invalid xml file, assembly name is empty");
+            }
+            assemblySpec.rule = ParseObfuscationRule(element, false);
+            foreach (XmlNode node in element.ChildNodes)
+            {
+                if (!(node is XmlElement ele))
+                {
+                    continue;
+                }
+                switch (ele.Name)
+                {
+                    case "type":
+                    assemblySpec.typeSpecs.Add(ParseType(ele));
+                    break;
+                    default:
+                    throw new Exception($"Invalid xml file, unknown node {ele.Name}");
+                }
+            }
+            return assemblySpec;
+        }
+
+        private TypeSpec ParseType(XmlElement element)
+        {
+            var typeSpec = new TypeSpec();
+            typeSpec.name = element.GetAttribute("name");
+            typeSpec.nameMatcher = new NameMatcher(typeSpec.name);
+            if (string.IsNullOrEmpty(typeSpec.name))
+            {
+                throw new Exception($"Invalid xml file, type name is empty");
+            }
+            typeSpec.rule = ParseObfuscationRule(element, false);
+            foreach (XmlNode node in element.ChildNodes)
+            {
+                if (!(node is XmlElement ele))
+                {
+                    continue;
+                }
+                switch (ele.Name)
+                {
+                    case "method":
+                    typeSpec.methodSpecs.Add(ParseMethod(ele));
+                    break;
+                    default:
+                    throw new Exception($"Invalid xml file, unknown node {ele.Name}");
+                }
+            }
+            return typeSpec;
+        }
+
+        private MethodSpec ParseMethod(XmlElement element)
+        {
+            var methodSpec = new MethodSpec();
+            methodSpec.name = element.GetAttribute("name");
+            methodSpec.nameMatcher = new NameMatcher(methodSpec.name);
+            if (string.IsNullOrEmpty(methodSpec.name))
+            {
+                throw new Exception($"Invalid xml file, method name is empty");
+            }
+            methodSpec.rule = ParseObfuscationRule(element, false);
+            return methodSpec;
+        }
+
+
+        private ObfuscationRule ComputeMethodObfuscationRule(MethodDef method)
+        {
+            var assemblyName = method.DeclaringType.Module.Assembly.Name;
+            if (!_assemblySpecs.TryGetValue(assemblyName, out var assSpec))
+            {
+                return _global;
+            }
+            string declaringTypeName = method.DeclaringType.FullName;
+            foreach (var typeSpec in assSpec.typeSpecs)
+            {
+                if (typeSpec.nameMatcher.IsMatch(declaringTypeName))
+                {
+                    foreach (var methodSpec in typeSpec.methodSpecs)
+                    {
+                        if (methodSpec.nameMatcher.IsMatch(method.Name))
+                        {
+                            return methodSpec.rule;
+                        }
+                    }
+                    return typeSpec.rule;
+                }
+            }
+            return assSpec.rule;
+        }
+
+        private ObfuscationRule GetMethodObfuscationRule(MethodDef method)
+        {
+            if (!_methodRuleCache.TryGetValue(method, out var rule))
+            {
+                rule = ComputeMethodObfuscationRule(method);
+                _methodRuleCache[method] = rule;
+            }
+            return rule;
+        }
+
+        public override bool NeedObfuscateMethod(MethodDef method)
+        {
+            ObfuscationRule rule = GetMethodObfuscationRule(method);
+            return rule.disableEncrypt != true;
+        }
+
+        public override bool NeedObfuscateInt(MethodDef method, int value)
+        {
+            ObfuscationRule rule = GetMethodObfuscationRule(method);
+            if (rule.encryptInt == false)
+            {
+                return false;
+            }
+            if (rule.notEncryptInts.Contains(value))
+            {
+                return false;
+            }
+            foreach (var range in rule.notEncryptIntRanges)
+            {
+                if (range.min != null && value < range.min)
+                {
+                    continue;
+                }
+                if (range.max != null && value > range.max)
+                {
+                    continue;
+                }
+                return false;
+            }
+            return true;
+        }
+
+        public override bool NeedObfuscateLong(MethodDef method, long value)
+        {
+            ObfuscationRule rule = GetMethodObfuscationRule(method);
+            if (rule.encryptLong == false)
+            {
+                return false;
+            }
+            if (rule.notEncryptLongs.Contains(value))
+            {
+                return false;
+            }
+            foreach (var range in rule.notEncryptLongRanges)
+            {
+                if (range.min != null && value < range.min)
+                {
+                    continue;
+                }
+                if (range.max != null && value > range.max)
+                {
+                    continue;
+                }
+                return false;
+            }
+            return true;
+        }
+
+        public override bool NeedObfuscateFloat(MethodDef method, float value)
+        {
+            ObfuscationRule rule = GetMethodObfuscationRule(method);
+            if (rule.encryptFloat == false)
+            {
+                return false;
+            }
+            foreach (var range in rule.notEncryptFloatRanges)
+            {
+                if (range.min != null && value < range.min)
+                {
+                    continue;
+                }
+                if (range.max != null && value > range.max)
+                {
+                    continue;
+                }
+                return false;
+            }
+            return true;
+        }
+
+        public override bool NeedObfuscateDouble(MethodDef method, double value)
+        {
+            ObfuscationRule rule = GetMethodObfuscationRule(method);
+            if (rule.encryptDouble == false)
+            {
+                return false;
+            }
+            foreach (var range in rule.notEncryptDoubleRanges)
+            {
+                if (range.min != null && value < range.min)
+                {
+                    continue;
+                }
+                if (range.max != null && value > range.max)
+                {
+                    continue;
+                }
+                return false;
+            }
+            return true;
+        }
+
+        public override bool NeedObfuscateString(MethodDef method, string value)
+        {
+            ObfuscationRule rule = GetMethodObfuscationRule(method);
+            if (rule.encryptString == false)
+            {
+                return false;
+            }
+            if (rule.notEncryptStrings.Contains(value))
+            {
+                return false;
+            }
+            return true;
+        }
+
+        public override bool NeedObfuscateArray(MethodDef method, byte[] array)
+        {
+            ObfuscationRule rule = GetMethodObfuscationRule(method);
+            return rule.encryptArray != false;
+        }
+    }
+}
diff --git a/Editor/ObfusPasses/ConstObfus/Policies/ObfuscationPolicyBase.cs b/Editor/ObfusPasses/ConstObfus/Policies/ObfuscationPolicyBase.cs
index bb8014b..df9637e 100644
--- a/Editor/ObfusPasses/ConstObfus/Policies/ObfuscationPolicyBase.cs
+++ b/Editor/ObfusPasses/ConstObfus/Policies/ObfuscationPolicyBase.cs
@@ -4,12 +4,12 @@ namespace Obfuz.ObfusPasses.ConstObfus.Policies
 {
     public abstract class ObfuscationPolicyBase : IObfuscationPolicy
     {
-        public abstract bool NeedObfuscateArray(MethodDef method, byte[] array);
+        public abstract bool NeedObfuscateMethod(MethodDef method);
         public abstract bool NeedObfuscateDouble(MethodDef method, double value);
         public abstract bool NeedObfuscateFloat(MethodDef method, float value);
         public abstract bool NeedObfuscateInt(MethodDef method, int value);
         public abstract bool NeedObfuscateLong(MethodDef method, long value);
-        public abstract bool NeedObfuscateMethod(MethodDef method);
         public abstract bool NeedObfuscateString(MethodDef method, string value);
+        public abstract bool NeedObfuscateArray(MethodDef method, byte[] array);
     }
 }
diff --git a/Editor/ObfusPasses/ConstObfus/Policies/RuleBasedObfuscationPolicy.cs b/Editor/ObfusPasses/ConstObfus/Policies/RuleBasedObfuscationPolicy.cs
deleted file mode 100644
index 2c17f0d..0000000
--- a/Editor/ObfusPasses/ConstObfus/Policies/RuleBasedObfuscationPolicy.cs
+++ /dev/null
@@ -1,47 +0,0 @@
-using dnlib.DotNet;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace Obfuz.ObfusPasses.ConstObfus.Policies
-{
-    public class RuleBasedObfuscationPolicy : ObfuscationPolicyBase
-    {
-        public override bool NeedObfuscateMethod(MethodDef method)
-        {
-            return true;
-        }
-
-        public override bool NeedObfuscateInt(MethodDef method, int value)
-        {
-            return value > 10000 || value < -10000;
-        }
-
-        public override bool NeedObfuscateLong(MethodDef method, long value)
-        {
-            return value > 10000 || value < -10000;
-        }
-
-        public override bool NeedObfuscateFloat(MethodDef method, float value)
-        {
-            return true;
-        }
-
-        public override bool NeedObfuscateDouble(MethodDef method, double value)
-        {
-            return true;
-        }
-
-        public override bool NeedObfuscateString(MethodDef method, string value)
-        {
-            return true;
-        }
-
-        public override bool NeedObfuscateArray(MethodDef method, byte[] array)
-        {
-            return true;
-        }
-    }
-}
diff --git a/Editor/ObfusPasses/SymbolObfus/Policies/RuleBasedRenamePolicy.cs b/Editor/ObfusPasses/SymbolObfus/Policies/ConfigurableRenamePolicy.cs
similarity index 99%
rename from Editor/ObfusPasses/SymbolObfus/Policies/RuleBasedRenamePolicy.cs
rename to Editor/ObfusPasses/SymbolObfus/Policies/ConfigurableRenamePolicy.cs
index 4f5781c..2b2f2d6 100644
--- a/Editor/ObfusPasses/SymbolObfus/Policies/RuleBasedRenamePolicy.cs
+++ b/Editor/ObfusPasses/SymbolObfus/Policies/ConfigurableRenamePolicy.cs
@@ -12,7 +12,7 @@ using UnityEngine;
 namespace Obfuz.ObfusPasses.SymbolObfus.Policies
 {
 
-    public class RuleBasedRenamePolicy : ObfuscationPolicyBase
+    public class ConfigurableRenamePolicy : ObfuscationPolicyBase
     {
         enum ObfuscationType
         {
@@ -709,7 +709,7 @@ namespace Obfuz.ObfusPasses.SymbolObfus.Policies
 
         private readonly HashSet<string> _obfuscationAssemblyNames;
 
-        public RuleBasedRenamePolicy(List<string> obfuscationAssemblyNames, List<string> xmlFiles)
+        public ConfigurableRenamePolicy(List<string> obfuscationAssemblyNames, List<string> xmlFiles)
         {
             this._obfuscationAssemblyNames = obfuscationAssemblyNames.ToHashSet();
             LoadXmls(xmlFiles);
diff --git a/Editor/ObfusPasses/SymbolObfus/SymbolRename.cs b/Editor/ObfusPasses/SymbolObfus/SymbolRename.cs
index 05925a3..b3b188b 100644
--- a/Editor/ObfusPasses/SymbolObfus/SymbolRename.cs
+++ b/Editor/ObfusPasses/SymbolObfus/SymbolRename.cs
@@ -71,7 +71,7 @@ namespace Obfuz.ObfusPasses.SymbolObfus
             _obfuscatedAndNotObfuscatedModules = ctx.obfuscatedAndNotObfuscatedModules;
             _toObfuscatedModuleSet = ctx.toObfuscatedModules.ToHashSet();
             _obfuzAssemblies = BuildAssemblyReferenceInfos(ctx);
-            var obfuscateRuleConfig = new RuleBasedRenamePolicy(ctx.toObfuscatedAssemblyNames, _obfuscationRuleFiles);
+            var obfuscateRuleConfig = new ConfigurableRenamePolicy(ctx.toObfuscatedAssemblyNames, _obfuscationRuleFiles);
             _renamePolicy = new CacheRenamePolicy(new CombineRenamePolicy(new SystemRenamePolicy(), new UnityRenamePolicy(), obfuscateRuleConfig));
             BuildCustomAttributeArguments();
         }
diff --git a/Editor/ObfuscatorBuilder.cs b/Editor/ObfuscatorBuilder.cs
index c2682f0..82fba7f 100644
--- a/Editor/ObfuscatorBuilder.cs
+++ b/Editor/ObfuscatorBuilder.cs
@@ -85,7 +85,7 @@ namespace Obfuz
             }
             if (obfuscationPasses.HasFlag(ObfuscationPassType.ConstEncryption))
             {
-                builder.AddPass(new ConstObfusPass());
+                builder.AddPass(new ConstObfusPass(settings.constObfusSettings));
             }
             if (obfuscationPasses.HasFlag(ObfuscationPassType.ExprObfuscation))
             {
diff --git a/Editor/Settings/ConstObfusSettings.cs b/Editor/Settings/ConstObfusSettings.cs
new file mode 100644
index 0000000..3de166e
--- /dev/null
+++ b/Editor/Settings/ConstObfusSettings.cs
@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using UnityEngine;
+
+namespace Obfuz.Settings
+{
+    [Serializable]
+    public class ConstObfusSettings
+    {
+        [Tooltip("config xml file")]
+        public string configFile;
+    }
+}
diff --git a/Editor/Settings/ObfuzSettings.cs b/Editor/Settings/ObfuzSettings.cs
index d656e8f..ade2932 100644
--- a/Editor/Settings/ObfuzSettings.cs
+++ b/Editor/Settings/ObfuzSettings.cs
@@ -20,14 +20,17 @@ namespace Obfuz.Settings
         [Tooltip("name of assemblies not obfuscated but reference assemblies to obfuscated ")]
         public string[] notObfuscatedAssemblyNamesReferencingObfuscated;
 
+        [Tooltip("extra assembly search dirs")]
+        public string[] extraAssemblySearchDirs;
+
         [Tooltip("enable obfuscation pass")]
         public ObfuscationPassType enabledObfuscationPasses = ObfuscationPassType.All;
 
         [Tooltip("symbol obfuscation settings")]
         public SymbolObfusSettings symbolObfusSettings;
 
-        [Tooltip("extra assembly search dirs")]
-        public string[] extraAssemblySearchDirs;
+        [Tooltip("const obfuscation settings")]
+        public ConstObfusSettings constObfusSettings;
 
         public string ObfuzRootDir => $"Library/Obfuz";
 
diff --git a/Editor/Settings/ObfuzSettingsProvider.cs b/Editor/Settings/ObfuzSettingsProvider.cs
index c59ca29..7ec7533 100644
--- a/Editor/Settings/ObfuzSettingsProvider.cs
+++ b/Editor/Settings/ObfuzSettingsProvider.cs
@@ -36,6 +36,7 @@ namespace Obfuz.Settings
         private SerializedProperty _enabledObfuscationPasses;
 
         private SerializedProperty _symbolObfusSettings;
+        private SerializedProperty _constObfusSettings;
 
         public ObfuzSettingsProvider() : base("Project/Obfuz", SettingsScope.Project)
         {
@@ -64,6 +65,7 @@ namespace Obfuz.Settings
             _enabledObfuscationPasses = _serializedObject.FindProperty("enabledObfuscationPasses");
 
             _symbolObfusSettings = _serializedObject.FindProperty("symbolObfusSettings");
+            _constObfusSettings = _serializedObject.FindProperty("constObfusSettings");
         }
 
         public override void OnGUI(string searchContext)
@@ -80,7 +82,9 @@ namespace Obfuz.Settings
             EditorGUILayout.PropertyField(_notObfuscatedAssemblyNamesReferencingObfuscated);
             EditorGUILayout.PropertyField(_extraAssemblySearchDirs);
             EditorGUILayout.PropertyField(_enabledObfuscationPasses);
+
             EditorGUILayout.PropertyField(_symbolObfusSettings);
+            EditorGUILayout.PropertyField(_constObfusSettings);
 
 
             if (EditorGUI.EndChangeCheck())