Possible encrypt/decrypt bug

[David Kwinter]

I've checked bugzilla and haven't found this, I thought I'd run it by this 
list before posting a new bug.

These should both answer "true" at the end, but the first, using "key" 
doesn't. I've encountered it while encrypting and decrypting binary files, 
expecting to reproduce the files exactly.

on mouseUp
    answer file "Choose a file"
    put it into fPath
    open file fPath for binary read
    read from file fPath until end
    put it into originalData
    close file fPath
    repeat 32 times
    put numToChar(random(255)) after tKey
    end repeat
    encrypt originalData using "aes256" with key tKey at 256 bit
    put it into encryptedData
    decrypt encryptedData using "aes256" with key tKey at 256 bit
    put it into restoredData
    answer restoredData=originalData #### answers false
end mouseUp

on mouseUp
    answer file "Choose a file"
    put it into fPath
    open file fPath for binary read
    read from file fPath until end
    put it into originalData
    close file fPath
    repeat 32 times
        put numToChar(random(255)) after tKey
    end repeat
    encrypt originalData using "aes256" with password tKey at 256 bit
    put it into encryptedData
    decrypt encryptedData using "aes256" with password tKey at 256 bit
    put it into restoredData
    answer restoredData=originalData #### answers true
end mouseUp

Even though it seems that a binary key works as the password I'd like to 
know if passwords are supposed to be restricted to certain chars and if the 
second script is less secure than the first, if it worked.

Thanks for any help