C# .NET to Silverlight Class

I have a c# class I can give you the entire class to work with at some point after I select a worker. The class is encryption and it uses three encrytion options. I need them converted to a silverlight class. The existing code works in .NET for ASP, WInforms etc but I need a version to work in silverlight. ## Deliverables public unsafe Variable Encode(string algorithm, byte[] key) { SymmetricAlgorithm algorithm2; if (![login to view URL]) { throw new InvalidOperationException("Attempt to Encode a non-binary LOUIS value"); } CspParameters parameters = new CspParameters { Flags = [login to view URL] }; new RSACryptoServiceProvider(parameters); if (algorithm == "DESCBC") { algorithm2 = [login to view URL](); } else if (algorithm == "AESCBC") { algorithm2 = [login to view URL](); } else if (algorithm == "RC2CBC") { algorithm2 = [login to view URL](); } else { if (algorithm != "3DESCBC") { throw new InvalidOperationException("Invalid encode algorithm: \"" + algorithm + "\""); } algorithm2 = [login to view URL](); } int length = [login to view URL] / 8; byte[] sourceArray = (byte[])this; int i = [login to view URL]; int inputCount = (i + length) + 4; byte[] destinationArray = new byte[inputCount]; [login to view URL](); [login to view URL]([login to view URL], destinationArray, length); byte[] buffer3 = new byte[length]; for (int j = 0; j != length; j++) { buffer3[j] = 0; } [login to view URL] = buffer3; [login to view URL] = [login to view URL]; [login to view URL] = [login to view URL]; [login to view URL] = 8 * length; [login to view URL] = key; fixed (byte* numRef = &(destinationArray[length])) { *((int*)numRef) = [login to view URL](i); } [login to view URL](sourceArray, 0, destinationArray, length + 4, i); return [login to view URL]().TransformFinalBlock(destinationArray, 0, inputCount); } public unsafe Variable Decode(string algorithm, byte[] key) { SymmetricAlgorithm algorithm2; byte[] buffer2; int num4; if (![login to view URL]) { throw new InvalidOperationException("Attempt to Decode a non-binary LOUIS value"); } CspParameters parameters = new CspParameters { Flags = [login to view URL] }; new RSACryptoServiceProvider(parameters); if (algorithm == "DESCBC") { algorithm2 = [login to view URL](); } else if (algorithm == "AESCBC") { algorithm2 = [login to view URL](); } else if (algorithm == "RC2CBC") { algorithm2 = [login to view URL](); } else { if (algorithm != "3DESCBC") { throw new InvalidOperationException("Invalid decode algorithm: \"" + algorithm + "\""); } algorithm2 = [login to view URL](); } int index = [login to view URL] / 8; byte[] inputBuffer = (byte[])this; int length = [login to view URL]; [login to view URL] = [login to view URL]; [login to view URL] = [login to view URL]; [login to view URL] = 8 * index; [login to view URL] = key; [login to view URL] = new byte[index]; for (int i = 0; i != index; i++) { [login to view URL][i] = 0; } ICryptoTransform transform = [login to view URL](); try { buffer2 = [login to view URL](inputBuffer, 0, length); } catch (Exception) { throw new InvalidOperationException("Invalid decode, the source is not encoded with the given algorithm and key"); } fixed (byte* numRef = &(buffer2[index])) { num4 = [login to view URL](*((int*)numRef)); } if ((num4 > (([login to view URL] - 4) - index)) || (num4 < ((([login to view URL] - 4) - index) - index))) { throw new InvalidOperationException("Invalid decode, the source is not encoded with the given algorithm and key"); } inputBuffer = new byte[num4]; [login to view URL](buffer2, index + 4, inputBuffer, 0, num4); return inputBuffer; } public byte[] Hash(string algorithm) { HashAlgorithm algorithm2; if (algorithm == "SHA1") { algorithm2 = [login to view URL](); } else if (algorithm == "SHA256") { algorithm2 = [login to view URL](); } else if (algorithm == "SHA384") { algorithm2 = [login to view URL](); } else if (algorithm == "SHA512") { algorithm2 = [login to view URL](); } else { if (algorithm != "MD5") { throw new InvalidOperationException("Invalid hash algorithm: \"" + algorithm + "\""); } algorithm2 = [login to view URL](); } if ([login to view URL]) { int length = [login to view URL]; Variable variable = this; byte[] buffer = (byte[])[login to view URL](); return [login to view URL](buffer, 8, length * 2); } if (![login to view URL]) { throw new InvalidOperationException("Invalid target for hash, must be string or binary"); } byte[] buffer2 = (byte[])this; return [login to view URL](buffer2, 0, [login to view URL]); }