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List:       ms-cryptoapi
Subject:    Re: Really long CryptAcquireContext
From:       Dale Gustafson <dale.gustafson () BPSI ! NET>
Date:       2002-01-18 15:02:41
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Hi Christian,

I recall encountering similar symptoms while testing a 3rd party CSP.

A long (~120 sec) pause can occur whenever a thread acquires then forgets to
release a mutex, for example.  I think the 2 minutes is an os default time value
-- appears the system stops (kills?) a faulty thread and lets waiting threads
run, etc. if it tries to keep a mutex forever.

Not sure if this is happening to you, obviously.

HTH.

Best Regards,

Dale Gustafson
Security Consultant
Future Foundation Inc.
+1 651 452-9033 office
+1 218 343-9724 mobile




"Paquin, Christian" wrote:

> I'm experiencing a strange problem on a particular machine (see below). A
> call to CryptAcquireContext takes exactly 120 seconds. The call parameters
> are:
>
> HCRYPTPROV *phProv:   ---
> LPCTSTR pszContainer: a temp container name, e.g. "test container"
>                       (putting NULL here eliminates the problem)
> LPCTSTR pszProvider:  "Microsoft Base (or Enhanced) Cryptographic Provider
> v1.0"
> DWORD dwProvType:     PROV_RSA_FULL
> DWORD dwFlags:        0 (using CRYPT_VERIFYCONTEXT eliminates the problem,
>                       but I need private key access)
>
> The 120 seconds delay seems to indicate a timeout of some sort. Did anybody
> experienced this? Is there a solution? I've seen two mentions of this
> problem on the mailing list, but no answer.
>
> Affected machine: Win NT 4, SP6a, w/ IE 5.5, crypt32.dll version
> 5.131.1877.5, advapi32.dll version 4.00.
>
> Thanks,
>
> Christian Paquin
> Silanis Technology Inc.
> www.silanis.com
>
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