May 01, 2012 06:27 AM|decker dong - msft|LINK
that can helps me in implementing this issue.
1）In view maybe you can write something like this：
<input type="hidden" id="EntityProperty" value='<%=MyEncypt(Model.PropertyValue)%>'/>
For "MyEncypt"，I think you can define in another static class and refer here……。
2）In Controller，when fetching the value，please do decypting。
For encypting and decypting，you can refer this nice sample： http://www.codeproject.com/Articles/5719/Simple-encrypting-and-decrypting-data-in-C