title: string encryption/decryption
body: <p>I am interested if it's possible to do string encryption/decryption using Excel Visual Basic and some cryptographic service provider.</p>
  <p>I have found a walk-through <a href="http://msdn.microsoft.com/en-us/library/ms172831.aspx" rel="nofollow noreferrer">Encrypting and Decrypting Strings in Visual Basic</a>, but it seems it's valid for standalone Visual Basic only.</p>
  <p>So would you suggest me another encryption method or show how the walk-through could be adopted for Excel Visual Basic?</p>