PKCS12Container::PKCS12Container(std::istream& istr, const std::string& password): _pKey(0)
{
	std::ostringstream ostr;
	Poco::StreamCopier::copyStream(istr, ostr);
	const std::string& cont = ostr.str();

	BIO *pBIO = BIO_new_mem_buf(const_cast<char*>(cont.data()), static_cast<int>(cont.size()));
	if (pBIO)
	{
		PKCS12* pPKCS12 = 0;
		d2i_PKCS12_bio(pBIO, &pPKCS12);
		BIO_free(pBIO);
		if (!pPKCS12) throw OpenSSLException("PKCS12Container(istream&, const string&)");
--->		load(pPKCS12, password);
	}
	else
	{
<---		throw Poco::NullPointerException("PKCS12Container(istream&, const string&)");
	}
}
		
void PKCS12Container::load(PKCS12* pPKCS12, const std::string& password)
{
	if (pPKCS12)
	{
		X509* pCert = 0;
		STACK_OF(X509)* pCA = 0;
--->		if (PKCS12_parse(pPKCS12, password.c_str(), &_pKey, &pCert, &pCA))
		{
		...
		}
		else
		{
			PKCS12_free(pPKCS12);
<---			throw OpenSSLException();
		}

Unable to parse PKCS#12 container: "error:0308010C:digital envelope routines::unsupported"