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Posted by Steven L Umbach on June 16, 2006, 2:45 pm
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I don't use Outlook myself but acording to Microsoft Outlook can use 3DES
for Outlook 2002 and newer. Maybe you are using an old version of Outlook.
You may also want to post in the appropriate Outlook newsgroup. --- Steve
http://support.microsoft.com/?id=307472
SUMMARY
By default, Microsoft Outlook 2002 defaults to 40-bit (RC2-40) encryption
when another encryption algorithm is not available. If you configure Outlook
to default to 168-bit (3DES) encryption instead, and then you send a message
to an e-mail client that does not support that encryption algorithm, the
recipient is unable to read the message
>I recently bought a laptop that has Windows XP Professional SP2. I was
> surprised to discover that algorithms under Outlook didn't include SHA1 or
> 3DES, which seem to be the minimum 'lingua franca' for strong crypto. I
> looked up the suported algorithms in the CryptoAPI, and found reference to
> additional CSPs (MS Strong Cryptograpjic Provider, Enhanced Crpytographic
> Provider, etc). I vaguely remember having to load a "High Encryption
> DIskette" back under Windows 2000, but there doesn't seem to be any
> reference to an equivalent product for XP.
>
> Do these CSPs actually exist? Microsoft tech support seems to be unaware
> of
> the entire topic.
>
> Does anybody have some useful pointers for these, or some other way that I
> can add SHA1 and 3DES support to my laptop for less that a small fortune?
>
> Thanks!
>
> Kristen
>
>
>
>
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