[AccessD] Cryptlib for encryption/decrypting/signing

Jim Lawrence accessd at shaw.ca
Sun Nov 13 13:30:38 CST 2005


Hi Gustav:

This is very interesting. 

Have you looked at Blowfish the open-source encryption scheme? It does not
have an export block on it like some versions of PGP (or a suspected
American security back-door like AES and TwoFish) and has never been cracked
even though everyone knows how it works, unlike DES
(http://www.eff.org/Privacy/Crypto/Crypto_misc/DESCracker/):

http://en.wikipedia.org/wiki/Blowfish_%28cipher%29
 
Jim


-----Original Message-----
From: accessd-bounces at databaseadvisors.com
[mailto:accessd-bounces at databaseadvisors.com] On Behalf Of Gustav Brock
Sent: Sunday, November 13, 2005 11:01 AM
To: accessd at databaseadvisors.com
Subject: [AccessD] Cryptlib for encryption/decrypting/signing

Hi all

This site of Peter Gutmann contains much info and links for en-/decrypting:

  http://www.cs.auckland.ac.nz/~pgut001

One link is for Cryptlib, a library with interfaces to many programming
languages:

  http://www.cs.auckland.ac.nz/~pgut001/cryptlib/

containing all sorts of functions, also for S/MIME signing and encryption of
e-mail.

There's a link for an ActiveX implementation too, but unfortunately this
seems not be maintained any more.
Thus, for VB(A) the only library left is the VB6 bas module. Unfortunately
this makes heavy use of Enum which - as far as I know - is not supported in
VBA so a lot of rewriting would be needed.

Nevertheless, much info on the topic is available here.

/gustav



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