how to solve this error -Invalid character in a Base-64 string.

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there are two parameters frm=table& id=24in url , then its encrypted url is
:enc=/3wUm3yXa4unZoIYymf8mHqQTVE5wB6Xyn2Kqfsnlu+DQyKYzrBop+7wxuKxjUGN
and for decryption i use byte[] decrypt=convert.fromBase64String(inputstr); it gives an error -Invalid character in a Base-64 string. what can i do?

Posted 19-Feb-11 21:38pm

tanuja karkar

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Albin Abel · Answer 1 · 2011-02-19T21:51:00

You have to replace the chars +, / with different chars from the encrypted string before posting, there there won't be problem in the decryption. After posting to cross check, replace the same in the comparable decrypted string and make the comparison or put back the replaced chars back in the post handling event.