Thank you. I add "OpenSSL_add_all_algorithms();" in main function and
include "openssl/evp.h",but it still pops error dialogue after a while.
Some threads can end well, others are not so lucky.
On Sun, Dec 11, 2011 at 8:14 PM, Dr. Stephen Henson <st...@openssl.org>wrote:
> On Sun, Dec 11, 2011, cellecial wrote:
>
> > Hi,
> >
> > I wrote a simple pkcs12 demo(under Windows), it just read from a
> PKCS12
> > file and got private key and certificate.
> > If I use single thread, it works fine.
> > If I use multi-thread, it works fine for a while ,then popups an
> error
> > dialogue "heap is corrupt".If I debug it in Visual Studio,it points to
> > PKCS12_parse() .
> > If I use EnterCriticalSection and LeaveCriticalSection with
> > multi-thread, it works fine too, but as you know, the effect is as same
> as
> > single thread does.
> >
> > So I want to know , what shared resource is protected by
> > CriticalSection? Is PKCS12_parse() not thread-safe? Can it be executed
> in
> > multi-threads without mutex?
> >
> > int pkcs12test(unsigned char *p12buf, int p12buflen, unsigned char
> *p12pswd)
> > {
> > PKCS12 *p12;
> > X509 *cert;
> > EVP_PKEY *prvkey;
> > int len;
> > char buf[4096];
> > int i=0;
> > char desc[1000];
> >
> > OpenSSL_add_all_algorithms();
> >
>
> At least one problem is the above line. You should call
> OpenSSL_add_all_algorithm() *once* before starting threads.
>
> Steve.
> --
> Dr Stephen N. Henson. OpenSSL project core developer.
> Commercial tech support now available see: http://www.openssl.org
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