Encrypt Decrypt Problem

Report · Feb 22, 2016

I am suddenly getting an error in a script that has been working for years where I encrypt an html file so that is can't be accessed via a browser and then decrypt it for later reference

The encrypting scheme is very basic:

<cfset archivefile="<HTML><BODY>" & paynowbutton & invoiceheader & invoicebody & "</body></html>">

THEN TO UNENCRYPT

THEN THE ERROR WHICH HAS BEEN INCREASING IN FREQUENCY

An error occurred while trying to encrypt or decrypt your input string: The input and output encodings are not same

ANY IDEAS??

Report · Feb 22, 2016

Did you upgrade to a newer ColdFusion version after some of the encrypted files were generated?

Report · Feb 22, 2016

Negative. In fact the code above fails immediately. As soon as is encrypted and saved as a file I can not decrypt it. I can however decrypt the encrypted content while it is still a variable (before storing as a file)

Report · Feb 22, 2016

"Encodings" might be the important bit. I'm not well-versed in the subject, but it might be reading and writing using different character sets. Try adding the "charset" attribute to both CFFILE calls.

Report · Feb 23, 2016

My vote for the most likely cause is what Carl said: encoding.

A second more remote guess might be malware modifying your .html file with spam links, corrupting your encrypted data. I ran into this a couple years back with an account I had on a shared hosting provider. They had malware adding spam to html files.

Report · Feb 24, 2016

I appreciate the suggestions, and adding charset on both ends of the transaction is a sound idea.

What I ended up doing though is recreating the documents as PDF wherever the decrypting failed, and will use this process going forward.