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List:       ms-cryptoapi
Subject:    Re: Question on how to use certificate to sign data....
From:       Kwok Lee <Kwok_Lee () BAYNETWORKS ! COM>
Date:       1998-06-17 15:17:58
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Thanks a lot John.


I have just one more question about CryptoSignMessage function.
Hopefully, this one hasn't been asked before.
When I fill out the CRYPT_SIGN_MESSAGE_PARA structure (the first input
parameter), I notice that I have to specify the Hash Algorthim.
If the hashing has been done at somewhere else already. I'll need to undo
the hashing first before I use this function.  Is there any option I can set
to avoid this? Or is there other routine I can use?


Thanks again!
kclee


-----Original Message-----
From: John Boyer <jboyer@igor.UWI.COM>
To: CryptoAPI@DISCUSS.MICROSOFT.COM <CryptoAPI@DISCUSS.MICROSOFT.COM>
Date: Friday, June 12, 1998 7:42 PM
Subject: Re: Question on how to use certificate to sign data....


Hi,

This question has been asked and answered in complete detail numerous times
on this list (including by me).  Please check the CAPI archives.  Also, go
to the Dr. Dobb's Journal web site and download a free copy of the source
code for my digital signature library, which wraps over 2000 lines of code
into a very simple function interface.  The corresponding article appeared
in the June issue, so the code is accessible by going to the June issue.
The July issue recently came out, but most bookshops and stores are still
carrying the June issue.  It will save you a lot of time and money, even if
you must order a back issue (which only costs $9).

John Boyer
Software Development Manager
UWI.Com -- The Internet Forms Company
jboyer@uwi.com






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