It might not be insecure if you use it in the right way,
1. Make sure your key is random
2. Make the key as long as the message
3. Never re-use the same key
This will turn this cypher (a viginere with a feedback loop (?)) into a
One-Time-Pad which is proven to be unbreakable.
-----Original Message-----
From: Phil Scadden [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, September 26, 2001 3:45 PM
To: Multiple recipients of list delphi
Subject: Re: [DUG]: String Encryption routine
> Um, unless I'm mistaken, this is a pretty basic cypher - are you after
You said it! - but that was what he asked for. Definitely not suitable for
large amounts of text or where clear text is guessable but certainly enough
to
put someone off when only a small text is available. I use SHA1 , MD5,
Blowfish,
IDEA, RC6 but they are markedly more complex and would assume he would
have found them since readily available on net.
----------------------------------------------------------
Phil Scadden, Institute of Geological and Nuclear Sciences
41 Bell Rd South, PO Box 30368, Lower Hutt, New Zealand
Ph +64 4 5704821, fax +64 4 5704603
---------------------------------------------------------------------------
New Zealand Delphi Users group - Delphi List - [EMAIL PROTECTED]
Website: http://www.delphi.org.nz
To UnSub, send email to: [EMAIL PROTECTED]
with body of "unsubscribe delphi"
Web Archive at: http://www.mail-archive.com/delphi%40delphi.org.nz/
This e-mail message has been scanned and cleared by MailMarshal
http://www.gen-i.co.nz
This e-mail message has been scanned and cleared by MailMarshal
http://www.gen-i.co.nz
---------------------------------------------------------------------------
New Zealand Delphi Users group - Delphi List - [EMAIL PROTECTED]
Website: http://www.delphi.org.nz
To UnSub, send email to: [EMAIL PROTECTED]
with body of "unsubscribe delphi"
Web Archive at: http://www.mail-archive.com/delphi%40delphi.org.nz/
