Decode/Decrypt string using jQuery or JavaScript that was originally encoded in C#

Question

I have a string that is encoded/encrypted using the following C# code:

public static string Encode(string text)
    {
        if (!Enabled)
            return text;

        return "~/Enc/" + System.Convert.ToBase64String(
                            System.Text.ASCIIEncoding.ASCII.GetBytes(text));
    }

How can I decode/decrypt it on the client side and get the original string before it was encoded/encrypted?

I've already tried atob(encodedString) and it doesn't return the original value.

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user2377970
– user2377970

2013-05-15 16:33:35 +00:00
Commented May 15, 2013 at 16:33 — user2377970
– user2377970, Commented May 15, 2013 at 16:33

monkeyhouse · Accepted Answer · 2013-05-15 04:22:44Z

1

you could always pass the client Url as a parameter in the viewmodel - ie.

 public sting AjaxUrl {get;set;}

etc. ,then in model in the javascript

 var link = '@Model.AjaxUrl'

(This may defeat the purpose of encryping the link though.)

answered May 15, 2013 at 4:22

monkeyhouse

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Comments

Jason M · Accepted Answer · 2013-05-14 22:23:04Z

1

atob works fine if all you're doing is base-64 encoding something.

You're not, though.

atob isn't going to work because you wouldn't be getting the encoded string, you'd be getting ascii bytes of the string + the "~/Enc" text you're placing before it.

answered May 14, 2013 at 22:23

Jason M

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