Amazon.Runtime.Internal.Settings.UserCrypto.Encrypt C# (CSharp) Метод

        public static string Encrypt(string unencrypted)
        {
            CryptProtectFlags flags = CryptProtectFlags.CRYPTPROTECT_UI_FORBIDDEN;
            DATA_BLOB unencryptedBlob = ConvertData(Encoding.Unicode.GetBytes(unencrypted));
            DATA_BLOB encryptedBlob = new DATA_BLOB();
            DATA_BLOB dataOption = new DATA_BLOB();

            try
            {
                CRYPTPROTECT_PROMPTSTRUCT prompt = new CRYPTPROTECT_PROMPTSTRUCT();
                if (!CryptProtectData(ref unencryptedBlob, "psw", ref dataOption, IntPtr.Zero, ref prompt, flags, ref encryptedBlob))
                {
                    int errCode = Marshal.GetLastWin32Error();
                    throw new AmazonClientException("CryptProtectData failed. Error Code: " + errCode);
                }

                byte[] outData = new byte[encryptedBlob.cbData];
                Marshal.Copy(encryptedBlob.pbData, outData, 0, outData.Length);


                StringBuilder encrypted = new StringBuilder();
                for (int i = 0; i <= outData.Length - 1; i++)
                {
                    encrypted.Append(
                        Convert.ToString(outData[i], 16).PadLeft(2, '0').ToUpper(CultureInfo.InvariantCulture));
                }

                string encryptedPassword = encrypted.ToString().ToUpper(CultureInfo.InvariantCulture);
                return encryptedPassword;
            }
            finally
            {
                if (unencryptedBlob.pbData != IntPtr.Zero)
                    Marshal.FreeHGlobal(unencryptedBlob.pbData);
                if (encryptedBlob.pbData != IntPtr.Zero)
                    Marshal.FreeHGlobal(encryptedBlob.pbData);
            }
        }

            internal void WriteToJson(JsonWriter writer)
            {
                writer.WriteObjectStart();
                foreach (var kvp in this._values)
                {
                    string value = kvp.Value as string;
                    if (value == null)
                    {
                        continue;
                    }

                    writer.WritePropertyName(kvp.Key);

                    if (PersistenceManager.IsEncrypted(kvp.Key) || PersistenceManager.IsEncrypted(this._uniqueKey))
                    {
                        value = UserCrypto.Encrypt(value);
                    }

                    writer.Write(value);
                }
                writer.WriteObjectEnd();
            }