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List:       ms-cryptoapi
Subject:    Re: CryptAcquireContext fails on Windows 98 with IE5
From:       Dr Stephen Henson <drh () CELOCOM ! COM>
Date:       1999-05-28 18:32:38
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Jerry Simington wrote:
>
> The following call fails on Windows 98 with IE5
>
> CryptAcquireContext(&hProv, NULL, NULL, PROV_RSA_FULL, 0)
>
> GetLastError() returns "Regestry key entry container could not be opened and
> may not exist."
> The documentation states that CryptoAPI ships with Windows 95 SR2 or Windows
> 95 with IE3. I assume the Windows 98 has it too. But why does this call
> fail.
>

The problem here is that the CryptAcquireContext() call is trying to
open the default key container (using the current user name). If you
don't have a default key container then it fails.

If you don't want to try to open the default key container you can pass
the argument CRYPT_VERIFYCONTEXT as the last argument with a NULL
container name.

You can then, for example, use the context to work out what key
containers are there and then make another CryptAcquireContext() call
without this flag with a valid container name.

Steve.
--
Dr Stephen N. Henson.   http://www.drh-consultancy.demon.co.uk/
Personal Email: shenson@drh-consultancy.demon.co.uk
Senior crypto engineer, Celo Communications: http://www.celocom.com/
Core developer of the   OpenSSL project: http://www.openssl.org/
Business Email: drh@celocom.com PGP key: via homepage.

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