Solved: Could not perform unpadding invalid pad byte
When you run into an error like this in ColdFusion, or otherwise using the RSA jSafe CryptoJ java package:
An error occurred while trying to encrypt or decrypt your input string: com.rsa.jsafe.crypto.dr: Could not perform unpadding: invalid pad byte..
It usually means that you are trying to decrypt a value using the wrong encryption key.
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Solved: Could not perform unpadding invalid pad byte was first published on April 18, 2013.