How to encrypt url manually ?

I work with json data services to generates the layout page, each time i run the services the encrypted url process doesn't work because the escape string.

example :

// json data before encrypted
[{'link' : '<a href=\"test.php?param=value\">'}]


//json data after encrypted
[{'link' : '<a href=\""test.php?param=value\"">'}]

i've try to encrypt the url manually and try to changes secureurl regular expression callback but i just failed.
is it possible to encrypt and decrypt the url manually? if yes, how ?

Sorry my english not pretty well, thanks for your great script