Facebook Signature incorrect

I'm Verifying the signature just like this: http://wiki.developers.facebook.com/ind … _Signature

but there's something wrong:

when creating md5 from concatenated string (cookies: expires, session_key, ss, user) plus application secret ... i'm ge开发者_如何学编程tting different results as it follows:

Example: cookie with signature value: 093dc0c322c04cd35bc2c1d83137219d md5(cookies plus secret) : 93dc0c322c04cd35bc2c1d83137219d

The only difference here is the first digit.

I was doing this signature verification without any problems until now.

I was using the API key and Application secret of an application that i've created on facebook account. Now, i've created a new application on my enterprise facebook page and i'm using the API key and application secret of this new application. Now, it's not working

Does anyone knows what happened?

Thanks

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You need the leading zero.