/// <summary>
/// Encrypts a string
/// </summary>
/// <param name="s">string to encrypt</param>
/// <param name="encryption">which encryption to use.</param>
/// <returns></returns>
public static string Encrypt(string s, Encryption encryption)
{
CryptoHelper c = new CryptoHelper();
switch (encryption)
{
case Encryption.none:
return(s);
case Encryption.AES:
return(c.AesEncrypt(s, key));
case Encryption.base64:
return(c.Base64Encrypt(s));
case Encryption.base64Reversed:
return(c.Base64ReverseEncrypt(s));
case Encryption.Salsa20:
return(c.salsa20Encrypt(s, key));
case Encryption.XOR:
return(c.XorEncryptDecrypt(s, key));
default:
return(s);
}
}
public static string GetQueryString(string body)
{
CryptoHelper.MiguCryptoKeys keys = CryptoHelper.CreateMiguCryptoKeys();
byte[] aesEncrypted = CryptoHelper.AesEncrypt(Encoding.UTF8.GetBytes(body), CipherMode.CBC, keys.Key, keys.IV);
byte[] rsaEncrypted = CryptoHelper.RsaEncrypt(keys.Password);
return($"dataType=2&data={WebUtility.UrlEncode(Convert.ToBase64String(Encoding.UTF8.GetBytes("Salted__").Concat(keys.Salt).Concat(aesEncrypted).ToArray()))}&secKey={WebUtility.UrlEncode(Convert.ToBase64String(rsaEncrypted))}");
}
public void Bench()
{
var kp = CryptoHelper.GenerateRsaKeyPair();
var start = DateTime.UtcNow;
for (int i = 0; i < 100000; i++)
{
var e = CryptoHelper.AesEncrypt("", "", CryptoHelper.GetSalt(16));
}
var duration2 = DateTime.UtcNow - start;
start = DateTime.UtcNow;
for (int i = 0; i < 10000; i++)
{
var e = CryptoHelper.RsaEncrypt(kp.PublicKey, CryptoHelper.GetSalt(16));
}
var duration1 = DateTime.UtcNow - start;
Console.WriteLine("d");
}
private static void BuildAssetBundles()
{
DLLMgr.Delete("Assets/HotUpdateResources/Dll/HotUpdateScripts.bytes");
DLLMgr.Delete(Directory.GetParent(Application.dataPath) + "/Assets/XAsset/ScriptableObjects/Rules.asset");
DLLMgr.Delete(Directory.GetParent(Application.dataPath) + "/Assets/XAsset/ScriptableObjects/Manifest.asset");
CryptoWindow.ShowWindow();
CryptoWindow.Build = s =>
{
var watch = new Stopwatch();
watch.Start();
var bytes = DLLMgr.FileToByte(DLLMgr.DllPath);
var result = DLLMgr.ByteToFile(CryptoHelper.AesEncrypt(bytes, s), "Assets/HotUpdateResources/Dll/HotUpdateScripts.bytes");
watch.Stop();
Log.Print("Convert Dlls in: " + watch.ElapsedMilliseconds + " ms.");
if (!result)
{
Log.PrintError("DLL转Byte[]出错！");
}
watch = new Stopwatch();
watch.Start();
BuildScript.ApplyBuildRules();
watch.Stop();
Log.Print("ApplyBuildRules in: " + watch.ElapsedMilliseconds + " ms.");
watch = new Stopwatch();
watch.Start();
BuildScript.BuildAssetBundles();
watch.Stop();
Log.Print("BuildAssetBundles in: " + watch.ElapsedMilliseconds + " ms.");
};
}
private static void BuildAssetBundles()
{
DLLMgr.Delete("Assets/HotUpdateResources/Dll/HotUpdateScripts.bytes");
// DLLMgr.Delete(Directory.GetParent(Application.dataPath)+"/Assets/XAsset/ScriptableObjects/Rules.asset");
// DLLMgr.Delete(Directory.GetParent(Application.dataPath)+"/Assets/XAsset/ScriptableObjects/Manifest.asset");
Action <string> buildAct = async s =>
{
var watch = new Stopwatch();
watch.Start();
var bytes = DLLMgr.FileToByte(DLLMgr.DllPath);
var result = DLLMgr.ByteToFile(CryptoHelper.AesEncrypt(bytes, s), "Assets/HotUpdateResources/Dll/HotUpdateScripts.bytes");
watch.Stop();
Log.Print("Convert Dlls in: " + watch.ElapsedMilliseconds + " ms.");
if (!result)
{
Log.PrintError("DLL转Byte[]出错！");
return;
}
Setting.EncryptPassword = s;
await Task.Delay(3);
AssetDatabase.Refresh();
watch = new Stopwatch();
watch.Start();
BuildScript.ApplyBuildRules();
watch.Stop();
Log.Print("ApplyBuildRules in: " + watch.ElapsedMilliseconds + " ms.");
watch = new Stopwatch();
watch.Start();
BuildScript.BuildAssetBundles();
watch.Stop();
Log.Print("BuildAssetBundles in: " + watch.ElapsedMilliseconds + " ms.");
};
if (string.IsNullOrEmpty(Setting.EncryptPassword))
{
CryptoWindow.ShowWindow();
CryptoWindow.Build = buildAct;
}
else
{
buildAct.Invoke(Setting.EncryptPassword);
}
}
public static void MakeBytes()
{
var watch = new Stopwatch();
watch.Start();
var bytes = FileToByte("Assets/HotUpdateResources/Dll/HotUpdateScripts.dll");
var result = ByteToFile(CryptoHelper.AesEncrypt(bytes, "DevelopmentMode."), "Assets/HotUpdateResources/Dll/HotUpdateScripts.bytes");
watch.Stop();
Log.Print("Convert Dlls in: " + watch.ElapsedMilliseconds + " ms.");
if (!result)
{
Log.PrintError("DLL转Byte[]出错！");
}
}
public async Task SimulateSendSecretMessage()
{
await Scatter.Connect();
var fromKey = await Scatter.GetPublicKey(Scatter.Blockchains.EOSIO);
var toKey = await Scatter.GetPublicKey(Scatter.Blockchains.EOSIO);
var r = new Random();
var nonce = (UInt64)r.Next();
var text = "Hello crypto secret message!";
var encryptionKeyA = await Scatter.GetEncryptionKey(fromKey, toKey, nonce);
var encryptionKeyABytes = UtilsHelper.HexStringToByteArray(encryptionKeyA);
Console.WriteLine("FromKey: {0}", fromKey);
Console.WriteLine("ToKey: {0}", toKey);
Console.WriteLine("Original: {0}", text);
var encrypted = CryptoHelper.AesEncrypt(encryptionKeyABytes, text);
Console.WriteLine("Encrypted: {0}", Encoding.UTF8.GetString(encrypted));
//...Send over the wire...
var encryptionKeyB = await Scatter.GetEncryptionKey(toKey, fromKey, nonce);
var encryptionKeyBBytes = UtilsHelper.HexStringToByteArray(encryptionKeyB);
Console.WriteLine("A_PVT_KEY + B_PUB_KEY: {0}", encryptionKeyA);
Console.WriteLine("B_PVT_KEY + A_PUB_KEY: {0}", encryptionKeyB);
Assert.IsTrue(encryptionKeyA == encryptionKeyB);
var roundtrip = CryptoHelper.AesDecrypt(encryptionKeyBBytes, encrypted);
Console.WriteLine("Round Trip: {0}", roundtrip);
}
public async Task OneWayEncryptDecrypt()
{
await Scatter.Connect();
var fromKey = await Scatter.GetPublicKey(Scatter.Blockchains.EOSIO);
var toKey = await Scatter.GetPublicKey(Scatter.Blockchains.EOSIO);
var r = new Random();
var encryptionKey = await Scatter.GetEncryptionKey(fromKey, toKey, (UInt64)r.Next());
var encryptionKeyBytes = UtilsHelper.HexStringToByteArray(encryptionKey);
string text = "Hello crypto secret message!";
var encrypted = CryptoHelper.AesEncrypt(encryptionKeyBytes, text);
var roundtrip = CryptoHelper.AesDecrypt(encryptionKeyBytes, encrypted);
Console.WriteLine("FromKey: {0}", fromKey);
Console.WriteLine("ToKey: {0}", toKey);
Console.WriteLine("Original: {0}", text);
Console.WriteLine("Encrypted: {0}", Encoding.UTF8.GetString(encrypted));
Console.WriteLine("Round Trip: {0}", roundtrip);
}
void LoadHotFixAssembly()
{
Appdomain = new AppDomain();
_pdb = null;
byte[] buffer;
//开发模式
#if XASSET_PRO
if (Assets.development)
#else
if (!Assets.runtimeMode)
#endif
{
if (File.Exists(DLLPath))//直接读DLL
{
buffer = DLLMgr.FileToByte(DLLPath);
//模拟加密
buffer = CryptoHelper.AesEncrypt(buffer, key);
}
else
{
Log.PrintError("DLL文件不存在");
return;
}
//查看是否有PDB文件
if (File.Exists(PdbPath) && usePdb && (File.GetLastWriteTime(DLLPath) - File.GetLastWriteTime(PdbPath)).Seconds < 30)
{
_pdb = new MemoryStream(DLLMgr.FileToByte(PdbPath));
}
}
else//真机模式解密加载
{
var dllAsset = Assets.LoadAsset("HotUpdateScripts.bytes", typeof(TextAsset));
if (dllAsset.error != null)
{
Log.PrintError(dllAsset.error);
return;
}
var dll = (TextAsset)dllAsset.asset;
buffer = new byte[dll.bytes.Length];
Array.Copy(dll.bytes, buffer, dll.bytes.Length);
dllAsset.Release();//释放掉不需要再用的dll
}
try
{
// var original = CryptoHelper.AesDecrypt(dll.bytes, Key);以前的用法，过时了
_fs = new JStream(buffer, key);
/*
* 如果一定要先解密，可以这样：
* var original = CryptoHelper.AesDecrypt(dll.bytes, Key);
* fs = new JStream(original, Key);
* fs.Encrypted = false;
*/
Appdomain.LoadAssembly(_fs, _pdb, new PdbReaderProvider());
}
catch (Exception e)
{
Log.PrintError("加载热更DLL错误：\n" + e);
if (!usePdb)
{
Log.PrintError("加载热更DLL失败，请确保HotUpdateResources/Dll里面有HotUpdateScripts.bytes文件，并且Build Bundle后将DLC传入服务器");
}
else
{
Log.PrintError("PDB不可用，可能是DLL和PDB版本不一致，可能DLL是Release，如果是Release出包，请取消UsePdb选项，本次已跳过使用PDB");
usePdb = false;
LoadHotFixAssembly();
}
return;
}
Success = true;
LoadILRuntime.InitializeILRuntime(Appdomain);
}
void LoadHotFixAssembly()
{
Appdomain = new AppDomain();
_pdb = null;
byte[] dll;
#if UNITY_EDITOR
//开发模式
if (!AssetMgr.RuntimeMode)
{
if (File.Exists(DLLPath)) //直接读DLL
{
dll = DLLMgr.FileToByte(DLLPath);
//模拟加密
dll = CryptoHelper.AesEncrypt(dll, key);
}
else
{
Log.PrintError("DLL文件不存在");
return;
}
//查看是否有PDB文件
if (File.Exists(PdbPath) && usePdb &&
(File.GetLastWriteTime(DLLPath) - File.GetLastWriteTime(PdbPath)).Seconds < 30)
{
_pdb = new MemoryStream(DLLMgr.FileToByte(PdbPath));
}
}
else //真机模式解密加载
#endif
{
var dllFile = (TextAsset)AssetMgr.Load(DllName, typeof(TextAsset));
if (dllFile == null)
{
return;
}
dll = dllFile.bytes;
}
var buffer = new byte[dll.Length];
Array.Copy(dll, buffer, dll.Length);
AssetMgr.Unload(DllName, true);
try
{
//这里默认用分块解密，JStream
_fs = new JStream(buffer, key);
/*
* 如果一定要直接解密然后不进行分块解密加载Dll，可以这样：
* var original = CryptoHelper.AesDecrypt(dll.bytes, Key);
* _fs = new JStream(original, Key);
* _fs.Encrypted = false;
*/
Appdomain.LoadAssembly(_fs, _pdb, new PdbReaderProvider());
}
catch (Exception e)
{
Log.PrintError("加载热更DLL错误：\n" + e);
if (!usePdb)
{
Log.PrintError(
"加载热更DLL失败，请确保HotUpdateResources/Dll里面有HotUpdateScripts.bytes文件，并且Build Bundle后将DLC传入服务器");
Log.PrintError("也有可能是密码不匹配或密码包含特殊字符导致的");
}
else
{
Log.PrintError("PDB不可用，可能是DLL和PDB版本不一致，可能DLL是Release，如果是Release出包，请取消UsePdb选项，本次已跳过使用PDB");
usePdb = false;
LoadHotFixAssembly();
}
return;
}
Success = true;
LoadILRuntime.InitializeILRuntime(Appdomain);
}