Appscan Usage on dynamically changing form submission value

["Rick Zhong" <sagiko () gmail com>]

Hi, guys
I am currently evaluating Watchfire's Appscan and one of the criterias
is the flexibility in usage.

I have this site which need to login through form user_ID and password
submission (POST).  The problem is the page will encrypted (by
javascript) the password entry with a server-side dynamically
generated RSA public key. And the encrypted password will be submitted
and decrypted at server side.  This means a different encrypted text
is submitted with every login session.

I am not sure whether Appscan can handle this case. As far as i notice
Appscan only record down login credentials and reuse these credentials
when it carries out scanning.  Can it change the submission value
dynamically according to the login page javascripts? Any alternative
ways if this is not possible?

Any suggestions are welcomed.  Thanks.

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