private static IList <byte[]> DecryptMsg(IStorageWrapper iw, string path, byte[] pass)
{
List <byte[]> msgList = new List <byte[]>();
int num = 0;
int[] pos = null;
int[] len = null;
using (IBaseStorageWrapper.FileObjects.FileObject fileObject = GetStorageFileObject(iw, path, "Index.msj"))
{
if (fileObject == null)
{
return(msgList);
}
int fileLen = (int)fileObject.Length;
num = fileLen / 4;
pos = new int[num + 1];
using (BinaryReader br = new BinaryReader(fileObject))
{
for (int i = 0; i < num; ++i)
{
pos[i] = br.ReadInt32();
}
}
}
using (IBaseStorageWrapper.FileObjects.FileObject fileObject = GetStorageFileObject(iw, path, "Data.msj"))
{
if (fileObject != null)
{
int fileLen = (int)fileObject.Length;
len = new int[num];
pos[num] = fileLen;
for (int i = 0; i < num; ++i)
{
len[i] = pos[i + 1] - pos[i];
}
using (BinaryReader br = new BinaryReader(fileObject))
{
for (int i = 0; i < num; ++i)
{
fileObject.Seek(pos[i], SeekOrigin.Begin);
byte[] data = br.ReadBytes(len[i]);
byte[] msg = Decrypt(data, pass, 0);
msgList.Add(msg);
}
}
}
}
return(msgList);
}
private static byte[] GetGlobalPass(IStorageWrapper iw, string QQID)
{
System.Security.Cryptography.MD5 md5 = System.Security.Cryptography.MD5.Create();
byte[] dataID = new byte[QQID.Length];
for (int i = 0; i < QQID.Length; ++i)
{
dataID[i] = (byte)(QQID[i]);
}
byte[] hashID = md5.ComputeHash(dataID);
IBaseStorageWrapper.FileObjects.FileObject fileObject = GetStorageFileObject(iw, "Matrix", "Matrix.db");
if (fileObject != null)
{
using (BinaryReader br = new BinaryReader(fileObject))
{
byte[] data = br.ReadBytes((int)fileObject.Length);
long len = data.Length;
if (len < 6 || data[0] != 0x51 || data[1] != 0x44)
{
return(null);
}
if (len >= 32768)
{
return(null);
}
bool bl = false;
int i = 6;
while (i < len)
{
bl = false;
byte type = data[i++];
if (i + 2 > len)
{
break;
}
int len1 = data[i] + data[i + 1] * 256;
byte xor1 = (byte)(data[i] ^ data[i + 1]);
i += 2;
if (i + len1 > len)
{
break;
}
for (int j = 0; j < len1; ++j)
{
data[i + j] = (byte)(~(data[i + j] ^ xor1));
}
if (len1 == 3 && data[i] == 0x43 && data[i + 1] == 0x52 && data[i + 2] == 0x4B)
{
bl = true;
}
i += len1;
if (type > 7)
{
break;
}
if (i + 4 > len)
{
break;
}
int len2 = data[i] + data[i + 1] * 256 + data[i + 2] * 256 * 256 + data[i + 3] * 256 * 256 * 256;
byte xor2 = (byte)(data[i] ^ data[i + 1]);
i += 4;
if (i + len2 > len)
{
break;
}
if (type == 6 || type == 7)
{
for (int j = 0; j < len2; ++j)
{
data[i + j] = (byte)(~(data[i + j] ^ xor2));
}
}
if (bl && len2 == 0x20)
{
byte[] dataT = new byte[len2];
for (int j = 0; j < len2; ++j)
{
dataT[j] = data[i + j];
}
return(Decrypt(dataT, hashID, 0));
}
i += len2;
}
if (i != len)
{
return(null);
}
}
}
return(null);
}
