Hi all, I am trying to store specific data into a database in an encrypted
format. This data also has to be decrypted so as to be displayed and edited
onscreen therefore ruling out using the hash function. The problem that I am
having is on the decrypt.
Example:
<cfset foo = encrypt("johnmurray", "wibble")>
foo then equals "*5)V%5*.Z59RR$"
I save this text to the database. An unusual thing happens when I try to
decrypt this text as follows;
<cfset foo = decrypt("*5)V%5*.Z59RR$", "wibble")>
foo then equals "johnmurrax"
as you can see the 'y' has become an 'x'.
Now here is the strange thing,
<cfset foo = encrypt("johnmurray ", "wibble")> - with an extra space at the end
of johnmurray everything encrypts/decrypts correctly using an 11 character
string.
also
<cfset foo = encrypt("johnmurra", "wibble")> - if I make it only 9 characters
then this also encrypts/decrypts correctly.
It seems to only happen with 10 letter strings?
This is on Coldfusion 7, using a SQL database. I have tried URLEncodedFormat
before saving to the database and then using URLDecode after retrieveing. As
this text is defined by the user then I cannot simply say that there can be no
10 character strings so has anyone ever come across this?
Does anyone have any better encryption ideas I could use? This is a really
annoying little quirk as to why it only seems to affect 10 character strings,
weird huh?
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