// Token: 0x0600019A RID: 410 RVA: 0x00061B74 File Offset: 0x0005FD74
private void OnWriterEvent(object sender, ModuleWriterListenerEventArgs e)
{
ModuleWriterBase moduleWriterBase = (ModuleWriterBase)sender;
bool flag = e.WriterEvent == ModuleWriterEvent.MDBeginAddResources;
if (flag)
{
this.ctx.Context.CheckCancellation();
this.ctx.Context.Logger.Debug("Encrypting resources...");
bool flag2 = this.ctx.Context.Packer != null;
List <EmbeddedResource> list = this.ctx.Module.Resources.OfType <EmbeddedResource>().ToList <EmbeddedResource>();
bool flag3 = !flag2;
if (flag3)
{
this.ctx.Module.Resources.RemoveWhere((Resource res) => res is EmbeddedResource);
}
string text = this.ctx.Name.RandomName(RenameMode.Letters);
PublicKey publicKey = null;
bool flag4 = moduleWriterBase.TheOptions.StrongNameKey != null;
if (flag4)
{
publicKey = PublicKeyBase.CreatePublicKey(moduleWriterBase.TheOptions.StrongNameKey.PublicKey);
}
AssemblyDefUser assemblyDefUser = new AssemblyDefUser(text, new Version(0, 0), publicKey);
assemblyDefUser.Modules.Add(new ModuleDefUser(text + ".dll"));
ModuleDef manifestModule = assemblyDefUser.ManifestModule;
assemblyDefUser.ManifestModule.Kind = ModuleKind.Dll;
AssemblyRefUser asmRef = new AssemblyRefUser(manifestModule.Assembly);
bool flag5 = !flag2;
if (flag5)
{
foreach (EmbeddedResource embeddedResource in list)
{
embeddedResource.Attributes = ManifestResourceAttributes.Public;
manifestModule.Resources.Add(embeddedResource);
this.ctx.Module.Resources.Add(new AssemblyLinkedResource(embeddedResource.Name, asmRef, embeddedResource.Attributes));
}
}
byte[] array;
using (MemoryStream memoryStream = new MemoryStream())
{
manifestModule.Write(memoryStream, new ModuleWriterOptions
{
StrongNameKey = moduleWriterBase.TheOptions.StrongNameKey
});
array = memoryStream.ToArray();
}
array = this.ctx.Context.Registry.GetService <ICompressionService>().Compress(array, delegate(double progress)
{
this.ctx.Context.Logger.Progress((int)(progress * 10000.0), 10000);
});
this.ctx.Context.Logger.EndProgress();
this.ctx.Context.CheckCancellation();
uint num = (uint)((array.Length + 3) / 4);
num = (num + 15u & 4294967280u);
uint[] array2 = new uint[num];
Buffer.BlockCopy(array, 0, array2, 0, array.Length);
Debug.Assert(num % 16u == 0u);
uint num2 = this.ctx.Random.NextUInt32() | 16u;
uint[] array3 = new uint[16];
uint num3 = num2;
for (int i = 0; i < 16; i++)
{
num3 ^= num3 >> 13;
num3 ^= num3 << 25;
num3 ^= num3 >> 27;
array3[i] = num3;
}
byte[] array4 = new byte[array2.Length * 4];
int j;
for (j = 0; j < array2.Length; j += 16)
{
uint[] src = this.ctx.ModeHandler.Encrypt(array2, j, array3);
for (int k = 0; k < 16; k++)
{
array3[k] ^= array2[j + k];
}
Buffer.BlockCopy(src, 0, array4, j * 4, 64);
}
Debug.Assert(j == array2.Length);
uint num4 = (uint)array4.Length;
TablesHeap tablesHeap = moduleWriterBase.MetaData.TablesHeap;
tablesHeap.ClassLayoutTable[moduleWriterBase.MetaData.GetClassLayoutRid(this.ctx.DataType)].ClassSize = num4;
RawFieldRow rawFieldRow = tablesHeap.FieldTable[moduleWriterBase.MetaData.GetRid(this.ctx.DataField)];
rawFieldRow.Flags |= 256;
this.encryptedResource = moduleWriterBase.Constants.Add(new ByteArrayChunk(array4), 8u);
MutationHelper.InjectKeys(this.ctx.InitMethod, new int[]
{
0,
1
}, new int[]
{
(int)(num4 / 4u),
(int)num2
});
}
else
{
bool flag6 = e.WriterEvent == ModuleWriterEvent.EndCalculateRvasAndFileOffsets;
if (flag6)
{
TablesHeap tablesHeap2 = moduleWriterBase.MetaData.TablesHeap;
tablesHeap2.FieldRVATable[moduleWriterBase.MetaData.GetFieldRVARid(this.ctx.DataField)].RVA = (uint)this.encryptedResource.RVA;
}
}
}
void OnWriterEvent(object sender, ModuleWriterListenerEventArgs e)
{
var writer = (ModuleWriterBase)sender;
if (e.WriterEvent == ModuleWriterEvent.MDBeginAddResources)
{
ctx.Context.CheckCancellation();
ctx.Context.Logger.Debug("Encrypting resources...");
bool hasPacker = ctx.Context.Packer != null;
List <EmbeddedResource> resources = ctx.Module.Resources.OfType <EmbeddedResource>().ToList();
if (!hasPacker)
{
ctx.Module.Resources.RemoveWhere(res => res is EmbeddedResource);
}
// move resources
string asmName = ctx.Name.RandomName(RenameMode.Letters);
PublicKey pubKey = null;
if (writer.TheOptions.StrongNameKey != null)
{
pubKey = PublicKeyBase.CreatePublicKey(writer.TheOptions.StrongNameKey.PublicKey);
}
var assembly = new AssemblyDefUser(asmName, new Version(0, 0), pubKey);
assembly.Modules.Add(new ModuleDefUser(asmName + ".dll"));
ModuleDef module = assembly.ManifestModule;
assembly.ManifestModule.Kind = ModuleKind.Dll;
var asmRef = new AssemblyRefUser(module.Assembly);
if (!hasPacker)
{
foreach (EmbeddedResource res in resources)
{
res.Attributes = ManifestResourceAttributes.Public;
module.Resources.Add(res);
ctx.Module.Resources.Add(new AssemblyLinkedResource(res.Name, asmRef, res.Attributes));
}
}
byte[] moduleBuff;
using (var ms = new MemoryStream()) {
module.Write(ms, new ModuleWriterOptions {
StrongNameKey = writer.TheOptions.StrongNameKey
});
moduleBuff = ms.ToArray();
}
// compress
moduleBuff = ctx.Context.Registry.GetService <ICompressionService>().Compress(
moduleBuff,
progress => ctx.Context.Logger.Progress((int)(progress * 10000), 10000));
ctx.Context.Logger.EndProgress();
ctx.Context.CheckCancellation();
uint compressedLen = (uint)(moduleBuff.Length + 3) / 4;
compressedLen = (compressedLen + 0xfu) & ~0xfu;
var compressedBuff = new uint[compressedLen];
Buffer.BlockCopy(moduleBuff, 0, compressedBuff, 0, moduleBuff.Length);
Debug.Assert(compressedLen % 0x10 == 0);
// encrypt
uint keySeed = ctx.Random.NextUInt32() | 0x10;
var key = new uint[0x10];
uint state = keySeed;
for (int i = 0; i < 0x10; i++)
{
state ^= state >> 13;
state ^= state << 25;
state ^= state >> 27;
key[i] = state;
}
var encryptedBuffer = new byte[compressedBuff.Length * 4];
int buffIndex = 0;
while (buffIndex < compressedBuff.Length)
{
uint[] enc = ctx.ModeHandler.Encrypt(compressedBuff, buffIndex, key);
for (int j = 0; j < 0x10; j++)
{
key[j] ^= compressedBuff[buffIndex + j];
}
Buffer.BlockCopy(enc, 0, encryptedBuffer, buffIndex * 4, 0x40);
buffIndex += 0x10;
}
Debug.Assert(buffIndex == compressedBuff.Length);
var size = (uint)encryptedBuffer.Length;
TablesHeap tblHeap = writer.MetaData.TablesHeap;
tblHeap.ClassLayoutTable[writer.MetaData.GetClassLayoutRid(ctx.DataType)].ClassSize = size;
tblHeap.FieldTable[writer.MetaData.GetRid(ctx.DataField)].Flags |= (ushort)FieldAttributes.HasFieldRVA;
encryptedResource = writer.Constants.Add(new ByteArrayChunk(encryptedBuffer), 8);
// inject key values
MutationHelper.InjectKeys(ctx.InitMethod,
new[] { 0, 1 },
new[] { (int)(size / 4), (int)(keySeed) });
}
else if (e.WriterEvent == ModuleWriterEvent.EndCalculateRvasAndFileOffsets)
{
TablesHeap tblHeap = writer.MetaData.TablesHeap;
tblHeap.FieldRVATable[writer.MetaData.GetFieldRVARid(ctx.DataField)].RVA = (uint)encryptedResource.RVA;
}
}