internal static string EncryptKey(string key)
{
var keyChars = ObscuredString.Encrypt(key.ToCharArray(), GetCryptoKey());
key = Base64Utils.ToBase64(keyChars);
return(key);
}
private static IEnumerable <AllowedAssembly> LoadAndParseLegacyWhitelist()
{
var result = new List <AllowedAssembly>();
string[] separator = { InjectionConstants.DataSeparator };
var fs = new FileStream(InjectionConstants.LegacyWhitelistRelativePath, FileMode.Open, FileAccess.Read, FileShare.Read);
var br = new BinaryReader(fs);
try
{
var count = br.ReadInt32();
for (var i = 0; i < count; i++)
{
var line = br.ReadString();
line = new string(ObscuredString.Encrypt(line, ACTkConstants.StringKey));
var strArr = line.Split(separator, StringSplitOptions.RemoveEmptyEntries);
var stringsCount = strArr.Length;
if (stringsCount > 1)
{
var assemblyName = strArr[0];
var hashes = new int[stringsCount - 1];
for (var j = 1; j < stringsCount; j++)
{
var parseResult = 0;
var success = int.TryParse(strArr[j], out parseResult);
if (success)
{
hashes[j - 1] = parseResult;
}
else
{
Debug.LogError(ACTkConstants.LogPrefix + "Could not parse value: " + strArr[j] +
", line:\n" + line);
}
}
result.Add(new AllowedAssembly(assemblyName, hashes));
}
else
{
Debug.LogWarning(EditorTools.ConstructError("Error parsing whitelist file line!"));
}
}
}
catch (Exception e)
{
Debug.LogError(ACTkConstants.LogPrefix + "Error while reading legacy whitelist:\n" + e);
}
finally
{
br.Close();
fs.Close();
}
return(result);
}
private static void OnHashesGenerated(BuildReport report, BuildHashes[] hashedBuilds)
{
Debug.Log("CodeHashGeneratorListener example listener saying hello.");
var whitelistedHashes = string.Empty;
// Upload hashes to the server or do anything you would like to.
//
// Note, you may have multiple builds each with own hashes in some cases after build,
// e.g. when using "Split APKs by target architecture" option.
foreach (var hashedBuild in hashedBuilds)
{
hashedBuild.PrintToConsole();
whitelistedHashes += hashedBuild.SummaryHash + GenuineValidatorExample.Separator;
var fileHashes = hashedBuild.FileHashes;
var fileHashesLength = fileHashes.Length;
for (var i = 0; i < fileHashesLength; i++)
{
var fileHash = fileHashes[i];
whitelistedHashes += fileHash.Hash;
if (i != fileHashesLength - 1)
{
whitelistedHashes += GenuineValidatorExample.Separator;
}
}
}
// for example, you may put hashes next to the standalone build to compare them offline
// just as a proof of concept, but please consider uploading your hashes to the server
// and make comparison on the server-side instead when possible to add cheaters some more pain
var outputFolder = Path.GetDirectoryName(report.summary.outputPath);
if (string.IsNullOrEmpty(outputFolder) || !Directory.Exists(outputFolder))
{
Debug.LogError(ACTkConstants.LogPrefix + "Couldn't find build folder!");
return;
}
var filePath = Path.Combine(outputFolder, GenuineValidatorExample.FileName);
// encrypt to hide hashes from the eye
var encryptedValue = ObscuredString.Encrypt(whitelistedHashes, GenuineValidatorExample.StringKey);
// now just get raw bytes and write them to the file to compare hashes in runtime
var bytes = GenuineValidatorExample.UnicodeCharsToBytes(encryptedValue);
File.WriteAllBytes(filePath, bytes);
}
private static void OnHashesGenerate(BuildReport report, Dictionary <string, string> buildHashes)
{
Debug.Log("CodeHashGeneratorListener example listener saying hello.");
// Upload hashes to the server or do anything you would like to.
//
// Note, you may have multiple builds each with own hash in some cases after build,
// e.g. when using "Split APKs by target architecture" option.
foreach (var buildHash in buildHashes)
{
Debug.Log("Build: " + buildHash.Key + "\n" +
"Hash: " + buildHash.Value);
}
// for example, you may put hash next to the standalone build to compare it offline
// just as a proof of concept, please consider uploading your hash to the server
// and make comparison on the server-side to add some more pain to the cheaters\
var firstBuildHash = buildHashes.FirstOrDefault().Value;
if (string.IsNullOrEmpty(firstBuildHash))
{
Debug.LogError(ACTkConstants.LogPrefix + "Couldn't find first build hash!");
return;
}
var outputFolder = Path.GetDirectoryName(report.summary.outputPath);
if (string.IsNullOrEmpty(outputFolder) || !Directory.Exists(outputFolder))
{
Debug.LogError(ACTkConstants.LogPrefix + "Couldn't find build folder!");
return;
}
var filePath = Path.Combine(outputFolder, GenuineValidatorExample.FileName);
var hashOfTheHashHaha = GenuineValidatorExample.GetHash(firstBuildHash + GenuineValidatorExample.HashSalt);
// let's put together build hash with its hash and encrypt it using constant key
var encryptedValue = ObscuredString.Encrypt(firstBuildHash + GenuineValidatorExample.Separator + hashOfTheHashHaha, GenuineValidatorExample.StringKey);
// now just get raw bytes and write them to the file to compare hash in runtime
var bytes = GenuineValidatorExample.UnicodeCharsToBytes(encryptedValue);
File.WriteAllBytes(filePath, bytes);
}
private static void WriteAllowedAssemblies(List <AllowedAssembly> assemblies)
{
Directory.CreateDirectory(InjectionConstants.ResourcesFolder);
var bw = new BinaryWriter(new FileStream(InjectionConstants.DataFilePath, FileMode.Create, FileAccess.Write, FileShare.Read), Encoding.Unicode);
bw.Write(assemblies.Count);
#if ACTK_DEBUG_VERBOSE
sw.Stop();
Debug.Log(ACTkConstants.LogPrefix + "Writing assemblies data, count: " + assemblies.Count);
sw.Start();
#endif
foreach (var assembly in assemblies)
{
var name = assembly.name;
var hashes = "";
for (var j = 0; j < assembly.hashes.Length; j++)
{
hashes += assembly.hashes[j].ToString(CultureInfo.InvariantCulture);
if (j < assembly.hashes.Length - 1)
{
hashes += InjectionConstants.DataSeparator;
}
}
var line = ObscuredString.Encrypt(name + InjectionConstants.DataSeparator + hashes, ACTkConstants.StringKey);
#if ACTK_DEBUG_PARANIOD
sw.Stop();
Debug.Log(ACTkConstants.LogPrefix + "Writing assembly:\n" + name + InjectionConstants.DataSeparator + hashes + "\n" +
new string(line) + ", length: " + line.Length);
sw.Start();
#endif
bw.Write(line.Length);
bw.Write(line, 0, line.Length);
}
bw.Close();
}
