// Token: 0x06000030 RID: 48 RVA: 0x00002CA8 File Offset: 0x00000EA8
private string Decrypt(byte[] Datas)
{
int num;
string text;
int num4;
object obj;
try
{
IL_01:
ProjectData.ClearProjectError();
num = -2;
IL_0A:
int num2 = 2;
PREC.DATA_BLOB data_BLOB = default(PREC.DATA_BLOB);
IL_15:
num2 = 3;
PREC.DATA_BLOB data_BLOB2 = default(PREC.DATA_BLOB);
IL_20:
num2 = 4;
GCHandle gchandle = GCHandle.Alloc(Datas, GCHandleType.Pinned);
IL_2B:
num2 = 5;
data_BLOB.pbData = gchandle.AddrOfPinnedObject();
IL_3C:
num2 = 6;
data_BLOB.cbData = Datas.Length;
IL_49:
num2 = 7;
gchandle.Free();
IL_53:
num2 = 8;
string szDataDescr = null;
PREC.DATA_BLOB data_BLOB4;
PREC.DATA_BLOB data_BLOB3 = data_BLOB4;
IntPtr intPtr;
IntPtr pvReserved = intPtr;
PREC.CRYPTPROTECT_PROMPTSTRUCT cryptprotect_PROMPTSTRUCT2;
PREC.CRYPTPROTECT_PROMPTSTRUCT cryptprotect_PROMPTSTRUCT = cryptprotect_PROMPTSTRUCT2;
PREC.CryptUnprotectData(ref data_BLOB, szDataDescr, ref data_BLOB3, pvReserved, ref cryptprotect_PROMPTSTRUCT, 0, ref data_BLOB2);
IL_70:
num2 = 9;
checked
{
byte[] array = new byte[data_BLOB2.cbData + 1];
IL_84:
num2 = 10;
Marshal.Copy(data_BLOB2.pbData, array, 0, data_BLOB2.cbData);
IL_9E:
num2 = 11;
string @string = Encoding.UTF8.GetString(array);
IL_B0:
num2 = 12;
text = @string.Substring(0, @string.Length - 1);
IL_CB:
goto IL_15E;
IL_D0 :;
}
int num3 = num4 + 1;
num4 = 0;
@switch(ICSharpCode.Decompiler.ILAst.ILLabel[], num3);
IL_114:
goto IL_153;
IL_116:
num4 = num2;
if (num <= -2)
{
goto IL_D0;
}
@switch(ICSharpCode.Decompiler.ILAst.ILLabel[], num);
IL_12F :;
}
catch when(endfilter(obj is Exception & num != 0 & num4 == 0))
{
Exception ex = (Exception)obj2;
goto IL_116;
}
IL_153:
throw ProjectData.CreateProjectError(-2146828237);
IL_15E:
string result = text;
if (num4 != 0)
{
ProjectData.ClearProjectError();
}
return(result);
}
private static extern bool CryptUnprotectData(ref PREC.DATA_BLOB pDataIn, string szDataDescr, ref PREC.DATA_BLOB pOptionalEntropy, IntPtr pvReserved, ref PREC.CRYPTPROTECT_PROMPTSTRUCT pPromptStruct, int dwFlags, ref PREC.DATA_BLOB pDataOut);