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List:       ms-cryptoapi
Subject:    Re: CryptoAPI in WinCE
From:       George Joy <georgej () WINDOWS ! MICROSOFT ! COM>
Date:       2002-09-27 17:07:31
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Windows CE has certificate management functions and base crypto functions since \
version 3.0. However, as you observed, it lacks some of the high level messaging \
functions (PKCS#7) because of space constraints. Depending on your application you \
may be able to use CryptSignHash to achieve your goals. Obtaining the private key \
from the certificate is not too difficult- CryptAcquireCertificatePrivateKey will do \
that.  Thank you,
George Joy
Windows CE

-----Original Message-----
From: Ivan Basart [mailto:ivan.basart@ES.GI-DE.COM] 
Sent: Friday, September 27, 2002 1:28 AM
To: CryptoAPI@DISCUSS.MICROSOFT.COM
Subject: CryptoAPI in WinCE


Hi all,

I'm developping a Cryptographic application for a PDA which uses the O.S. WinCe, and \
I get some problems using CryptoAPI. First of all, Win CE provides the typical \
Certificate Stores (MY,OTHERS...) and it is possible to install there certificates \
using cryptoAPI. There exist also the functions CertOpenStore, and \
CertFindCertificateInStore, but it is not available the function CryptSignMessage \
(and others), so currently I must use the function CryptSignHash for signing. But \
using that function I have to acces the private key through the key containers \
instead of using directly the certificate.

Does anybody know if there is any way to sign using the certificate? And, when it \
will be a full version of CryptoAPI available for WinCe, may be in the Win CE.NET \
version??

Thanks in advance.

                        ///   
                       (.) (.) 
-----------oOO--(_)-OOo--------------------------
What is mobile security today? (www.atdan.org)

*       Ivan Basart Carrillo - ivan.basart@es.gi-de.com
*       Dept. Marketing & Development.
*       GyD Ibérica - Giesecke & Devrient 
*       Timbal del Bruc, 4A
*       E-08970 - St. Joan Despí
*       Tel. +34 93 480 83 03 (Ext. 353)

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