encrypt connectionStrings on hosted web site

hello,

i am trying to find a "how to" or tutorial of how to encrypt the connectionStrings.  i have a local development environment (vs2013, sql2012) on the same machine.  i am using xdt:Transforms and Publish Web to build the web.config and deploy to a hosting provider.

how do i secure my web.config connectionStrings with encryption?  there are many articles and threads on encryption, but i have not yet found any that reference a solution where transforms are used to build the web.config.

thanks!