Pretty simple. Stuff the file into a Byte array then do this
Assume bEArr is our encrypted set, bNArr is non-encrypted:
For b = 0 to UBound(bEArr)
bNArr(b) = bEArr(b) XOr 255
Of course it's probably better to just open the files, step through the
encrypted one one byte at a time a write the non-encrypted one byte at a
time. It'll take far less resources, especially if the file is large, but
the premise is the same.
Christopher Tacke, MCSD
Associate, Rubicon Technologies
(xxx) xxx-xxxx ext 319
From: Morgan Erickson [mailto:merick01@s...]
Sent: Thursday, April 26, 2001 2:41 PM
To: professional vb
Subject: [pro_vb] Decrypting a file
I need to decrypt a file.
The author of the file told me the following:
"...the encryption is just xor'ing every byte of the file with 0xFF, which
just reverses every bit..."
Uh...What's that mean and how do I start doing that??